EXAR XRT86SH221

XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
AUGUST 2008
REV. 1.0.1
GENERAL DESCRIPTION
The XRT86SH221 (Voyager-Lite) is a physical layer
SDH to PDH mapper/demapper which enables E1
aggregation to STM-1 via standard VC-12 to AU-3
and TUG-3/AU-4 mapping protocols. Voyager-Lite
supports all the framing, mapping and grooming
functions required for STM-1 mapper applications.
The device generates and terminates all SDH
Regenerator Section, Multiplexer Section and Path
Overhead including the low-order Virtual Container
(VC) Path Overhead. E1 framing is transparent;
therefore, the device neither generates nor
terminates the E1 frame.
A single Voyager-Lite performs mapping of 21
asynchronous E1 spans to either VC-12/TU-12/TUG2/ VC-3/AU-3/STM-0 or VC-12/TU-12/TUG-2/TUG-3/
STM-0. Mapping to STM-1 requires (3) Voyager-Lite
devices with one acting as "master" framer and two
acting as "slave" framers. In this configuration,
Voyager-Lite performs all the necessary framing,
pointer processing and mapping functions required
for mapping of 63xE1 spans to either VC-12/TU-12/
TUG-2/VC-3/AU-3/STM-1 or VC-12/TU-12/TUG-2/
TUG-3/VC-4/AU-4/STM-1 as shown in the block
diagram.
FIGURE 1. SIMPLIFIED BLOCK DIAGRAM
19.44Mhz
SDH OH
Drop
STM-1 SOH
Processor
Telecom
Bus
Rx
8kHz
VC-4 POH
Drop
XRT86SH221 Voyager Lite
Master
Slave
SDH
TransPort
Proc
(SOH)
Rx
Telecom Bus or
Serial Port
Interface
SDH
Path
Proc
(POH)
TU-12
To
TUG2
VC-12
Mapper
+
TU-12
Pointer
Proc
21 Ch
E1
Frame
Sync
VC-12
Cross
Connect
21 Ch
E1
Short
Haul
LIU
21x21
Bit
Retimer
Rx
Rx
Egress
Tx
Rx
Telecom
Bus
Tx
SDH
TransPort
Proc
(SOH)
Tx
TUG3/
VC4/
AU4
VC-12
Mapper
+
TU-12
Pointer
Proc
Tx
Tx
VC3/
AU3
21x21
21 Ch
E1
Short
Haul
LIU
Tx
Rx
VC-12
Cross
Connect
PLL
E1, 2xE1
4xE1, 8xE1
STM-1 SOH
Processor
SDH OH
Add
VC-4 P OHSingle Input
Clock
Add
Reference
JTAG
Microprocessor
JTAG
Port
Microprocessor
Interface
Ingress
Recovered
Line Clock
PACKAGE ORDERING INFORMATION
PRODUCT NUMBER
PACKAGE TYPE
OPERATING TEMPERATURE RANGE
XRT86SH221IB
388 PBGA
-40°C to +85°C
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (510) 668-7000 • FAX (510) 668-7017 • www.exar.com
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
FEATURES
VT Mapper
• Maps up to 21 synchronous or asynchronous E1 signals to SDH AU-3 via TUG-2 and TU-12, or to SDH
STM-0 payload capacity via VT Groups and VT2.
• Dynamic VT/TU size selection.
• Inserts valid V5 bit interleaved parity BIP-2 in the transmit direction.
• Detects and counts V5 BIP-2 errors for performance monitoring.
• Configurable remote error indication REI-V insertion for V5 BIP-2 errors.
• Supports proprietary V5 remote loopcodes.
• Detects and counts remote errors.
• Automatic receive monitor functions include VT/TU remote defect indication RDI-V, VT/TU remote failure
indication RFI-V, VT/TU remote error indication REI-V, BIP-2 errors, VT/TU AIS, VT/TU Automatic Protection
Switching (APS) signalling for low order path level, and VT/TU loss of pointer LOP-V.
• Automatic receive monitoring functions can be configured to provide an interrupt to the control system, or the
device can be operated in a polled mode.
• Test pattern generation and detection/dropping for setup and maintenance.
• User configurable for VT/TU label, AIS-V, RDI-V, RFI-V, REI-V, APS, force BIP-2 errors, or unequipped
tributary insertion.
E1 Receive Framing Synchronizer
• Provides a standard compliant 2.048 Mbits PCM30 CRC-4 E1 framer.
• Provides off-line framer.
• Complies with standards such as: ITU-T G.703, G.704, G.706 (including Annex B), G.732, G.735, G.736,
G.737, G.761, G.823, I.431 and ETS 300 011, 300 233.
• Supports FAS, Signaling Multiframe, and CRC-4 framing structure.
• FAS reframe time is 625µs maximum.
• Provides Loss Of Frame (LOF), Loss of Multiframe detection.
• Provides Change Of Frame Alignment (COFA) detection.
• Provides Change Of signaling MultiFrame Alignment (COMFA) detection.
• Provides a 2-frame slip buffer for bit retiming.
2
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
SDH Transmitter
• Performs standard STM-0/STM-1 transmit processing.
• Conforms to ITU-T I.432, ANSI T1.105, and Bellcore-253
• Provides a 51.84MHz STM-0 serial interface or 6MHz / 19MHz 8-bit STM-0 / STM-1 parallel interface.
• Performs SDH frame insertion and accepts external frame synchronization.
• Performs optional transmit data scrambling.
• Performs POH, SDH OH generation/insertion.
• Generates transmit payload pointer (H1, H2) (fixed at 522) with NDF insertion.
• Inserts A1/A2 with optional error mask.
• Computes and inserts BIP-8 (B1, B2) with optional error mask.
• Generates AIS-L, REI-L and RDI-L according to receiver state with option of SW or HW insertion.
• Inserts LOS, forces SEF by software.
• Generates RDI-P and REI-P automatically with optional SW or HW override.
• Inserts fixed-stuff columns, calculates and inserts B3 error code.
SDH Receiver
• Performs standard STM-0/STM-1 receive processing.
• Conforms to ITU-T I.432, ANSI T1.105, and Bellcore-253.
• Provides fully programmable threshold detection for SD and SF conditions.
• Provides a 51.84MHz STM-0 serial interface or 6MHz / 19MHz 8-bit STM-0 / STM-1 parallel interface.
• Provides section trace buffer with mismatch detection and invalid message detection.
• Performs SDH frame synchronization.
• Supports NDF, positive stuff and negative stuff for pointer processor.
• Performs receive data de-scrambling.
• Performs POH, SDH OH interpretation/extraction.
• Interprets payload pointer (H1, H2).
• Detects Out Of Frame (OOF), Loss Of Frame (LOF), Loss Of Signal (LOS), APS failure.
• Detects Line Alarm Indication(L-AIS), Line remote Defect Indication (L-RDI), Loss Of Pointer.
• Detects Path Alarm Indication, Path remote Defect Indication, Path extended RDI.
• Provides signal label monitor with PLM detection.
• Supports path trace buffer with TIM-P and invalid message detection.
• Computes and compares B3, REI-L and REI-P errors.
• Computes and compares BIP-8 (B1, B2) and counts the errors.
3
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE OF CONTENTS
GENERAL DESCRIPTION ................................................................................................ 1
FIGURE 1. SIMPLIFIED BLOCK DIAGRAM ............................................................................................................................................ 1
PACKAGE ORDERING INFORMATION ...................................................................................................... 1
FEATURES ........................................................................................................................ 2
TABLE OF CONTENTS...................................................................................................... I
1.0 PIN DESCRIPTIONS ................................................................................................................................ 4
1.1 MICROPROCESSOR INTERFACE PINS............................................................................................................ 4
1.2 BOUNDARY SCAN AND OTHER TEST PINS.................................................................................................... 6
1.3 GENERAL PURPOSE INPUT AND OUTPUT PINS............................................................................................ 7
1.4 TIMING AND CLOCK SIGNALS.......................................................................................................................... 7
1.5 LOW SPEED LINE INTERFACE SIGNALS ........................................................................................................ 9
1.6 HIGH SPEED SERIAL INTERFACE.................................................................................................................. 12
1.7 HIGH SPEED TELECOM BUS INTERFACE.................................................................................................... 13
1.8 HIGH SPEED SECTION AND PATH OVERHEAD BUS ................................................................................... 15
1.9 HIGH SPEED TU POH OVERHEAD BUS ......................................................................................................... 16
1.10 POWER AND GROUND PINS ......................................................................................................................... 18
2.0 APPLICATIONS AND PHYSICAL INTERFACE GENERAL OVERVIEW............................................. 20
FIGURE 2. APPLICATION DIAGRAM .................................................................................................................................................. 20
2.1 PHYSICAL INTERFACE .................................................................................................................................... 21
FIGURE 3. SIMPLIFIED BLOCK DIAGRAM OF THE PHYSICAL INTERFACE ............................................................................................. 21
2.2 TELECOM BUS INTERFACE ............................................................................................................................ 22
FIGURE 4. SIMPLIFIED BLOCK DIAGRAM OF THE TELECOM BUS INTERFACE ...................................................................................... 22
2.3 STM-0 SERIAL INTERFACE SDH FRAME SYNCHRONIZATION AND TIMING INTERFACE....................... 23
FIGURE 5. SIMPLIFIED BLOCK DIAGRAM OF THE SERIAL PORT INTERFACE ....................................................................................... 23
2.4 SDH FRAME SYNCHRONIZATION AND TIMING INTERFACE ...................................................................... 24
FIGURE 6. SIMPLIFIED BLOCK DIAGRAM OF THE SDH FRAME SYNCHRONIZATION ............................................................................. 24
2.5 SDH OVERHEAD ADD-DROP INTERFACES .................................................................................................. 25
FIGURE 7. SIMPLIFIED BLOCK DIAGRAM OF THE SDH OVERHEAD ADD-DROP INTERFACE ................................................................. 25
2.6 E1 SHORT HAUL LINE INTERFACE ................................................................................................................ 26
2.7 E1 TIMING INTERFACE .................................................................................................................................... 27
2.8 MICROPROCESSOR INTERFACE ................................................................................................................... 27
3.0 FUNCTIONAL DESCRIPTION ............................................................................................................... 28
FIGURE 8. FUNCTIONAL BLOCK DIAGRAM........................................................................................................................................ 28
3.1 INGRESS DATA PATH FUNCTIONAL BLOCKS ............................................................................................. 29
FIGURE 9. SIMPLIFIED BLOCK DIAGRAM OF THE INGRESS DATA PATH .............................................................................................. 29
3.2 E1 RECEIVE LIU (RXE1LIU) .............................................................................................................................
3.3 TRANSMIT LOW-ORDER (TU) OVERHEAD INSERTION BUS (TXTUPOH) ..................................................
3.4 VC-12/TU-12 TRANSMIT LOW-ORDER MAPPER AND OVERHEAD PROCESSOR (TXLOPOHPROC)......
3.5 VC-12 TRANSMIT CROSS-CONNECT (TXVC12XC) .......................................................................................
3.6 TRANSMIT SDH SOH/POH INSERTION BUS (TXOH) ....................................................................................
3.7 SDH TRANSMIT MAPPER AND PATH OVERHEAD PROCESSOR (TXPOHPROC) .....................................
3.8 SDH TRANSMIT FRAMER AND SECTION OVERHEAD PROCESSOR (TXSOHPROC)...............................
3.9 TRANSMIT TELECOM BUS (TXTBUS) ............................................................................................................
3.10 EGRESS DATA PATH FUNCTIONAL BLOCKS ............................................................................................
29
29
30
30
30
31
32
33
34
FIGURE 10. SIMPLIFIED BLOCK DIAGRAM OF THE EGRESS DATA PATH ............................................................................................ 34
3.11 RECEIVE TELECOM BUS (RXTBUS)............................................................................................................. 34
3.12 SDH RECEIVE FRAMER AND SECTION OVERHEAD PROCESSOR (RXSOHPROC) ............................... 35
3.13 SDH RECEIVE MAPPER AND PATH OVERHEAD PROCESSOR (RXPOHPROC) ..................................... 36
4.0 VOYAGER-LITE HARDWARE ARCHITECTURE AND ALGORITHMS ............................................... 37
FIGURE 11. VOYAGER-LITE ARCHITECTURE .................................................................................................................................... 37
4.1 MULTIPLEXING STRUCTURE.......................................................................................................................... 38
FIGURE 12. MULTIPLEXING STRUCTURE .......................................................................................................................................... 38
4.2 FUNCTIONAL BLOCKS .................................................................................................................................... 39
4.3 SDH TRANSMIT DATA FLOW .......................................................................................................................... 39
FIGURE 13. SDH TRANSMITTER GENERAL STRUCTURE................................................................................................................... 40
4.4 SDH RECEIVE DATA FLOW............................................................................................................................. 40
FIGURE 14. GENERAL COMPOSITION OF A SDH STM-N RECEIVER ................................................................................................. 41
4.5 VT MAPPER...................................................................................................................................................... 41
I
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
FIGURE 15. TOP LEVEL BLOCK DIAGRAM........................................................................................................................................ 42
4.6 INTERRUPTS AND STATUS ............................................................................................................................ 43
FIGURE 16. INTERRUPT HIERARCHY ............................................................................................................................................... 43
4.7 INTERRUPT PROCESSING AND CONTROL .................................................................................................. 44
4.8 STM-0/1 RECEIVE TRANSPORT PROCESSOR.............................................................................................. 44
FIGURE 17. BYTE_ALIGN BLOCK FUNCTIONAL DIAGRAM .............................................................................................................. 44
TABLE 1: 16-BYTE FRAME FOR TRAIL APID ..................................................................................................................................... 49
FIGURE 18. RECEIVE TRACE BUFFER MEMORY............................................................................................................................... 50
TABLE 2: ADDRESSING SCHEME USED TO ACCESS THE SDH OH BYTES ........................................................................................ 51
FIGURE 19. RECEIVE TRANSPORT OVERHEAD INTERFACE TIMING ................................................................................................... 52
STM-0/1 RECEIVE PATH PROCESSOR................................................................................................. 53
FIGURE 20. POINTER PROCESSING FSM ........................................................................................................................................ 55
TABLE 3: SDH POINTER EVENT TYPES .......................................................................................................................................... 55
FIGURE 21. CONCATENATED POINTER INDICATOR PROCESSING FSM.............................................................................................. 57
TABLE 4: RDI-P SETTINGS AND INTERPRETATION ........................................................................................................................... 58
TABLE 5: STS SIGNAL LABEL MISMATCH DEFECT CONDITIONS ....................................................................................................... 59
TABLE 6: TRUTH TABLE FOR PATH LABEL ERROR CONDITIONS ....................................................................................................... 59
FIGURE 22. PATH OVERHEAD INTERFACE TIMING............................................................................................................................ 62
FIGURE 23. TRANSMIT TRANSPORT OVERHEAD INTERFACE TIMING ................................................................................................. 63
4.9 TELECOM BUS INTERFACE............................................................................................................................ 68
4.9.1 TRANSMIT TELECOM BUS .........................................................................................................................................
FIGURE 24. TRANSMIT TELECOM BUS INTERFACE TIMING................................................................................................................
4.9.2 2KHZ MODE IN STM-1 .................................................................................................................................................
FIGURE 25. C1J1V1 PULSE IN STM-1 2KHZ MODE........................................................................................................................
4.9.3 RECEIVE TELECOM BUS ............................................................................................................................................
FIGURE 26. RECEIVE TELECOM BUS INTERFACE TIMING..................................................................................................................
68
68
69
69
69
69
4.10 VT MAPPER .................................................................................................................................................... 71
FIGURE 27. INTERNAL BUS STRUCTURE ......................................................................................................................................... 71
FIGURE 28. MID BUS INTERFACE .................................................................................................................................................... 73
FIGURE 29. SDH TO VTM DATA TRANSFER WITH ZERO POINTER OFFSET ......................................................................................... 73
FIGURE 30. VTM TO SDH DATA TRANSFER .................................................................................................................................... 74
FIGURE 31. E1 INTERFACE TIMING (INTERNAL TO THE CHIP) ........................................................................................................... 75
FIGURE 32. E1 INTERFACE TIMING (E1 SYNCHRONOUS MAPPING, INTERNAL TO THE CHIP)............................................................... 75
TABLE 7: V5 - VT PATH ERROR CHECKING, SIGNAL LABEL AND PATH STATUS ................................................................................ 76
TABLE 8: N2 BYTE STRUCTURE ...................................................................................................................................................... 78
TABLE 9: B7-B8 MULTIFRAME STRUCTURE ....................................................................................................................................... 79
TABLE 10: STRUCTURE OF FRAMES # 73 - 76 OF THE B7-B8 MULTIFRAME ....................................................................................... 79
TABLE 11: K4 (B5-B7) CODING AND INTERPRETATION ...................................................................................................................... 81
TABLE 12: Z7/K4 - VT PATH GROWTH AND VT PATH REMOTE DEFECT INDICATION ........................................................................ 81
FIGURE 33. MKP (MAKE PAYLOAD), ONE OF SEVEN MKG : MAKE VT/TU GROUP ........................................................................... 82
FIGURE 34. MKP (MAKE PAYLOAD), VT/TU GROUP INTERLEAVING................................................................................................. 83
FIGURE 35. MAKE TRIBUTARY (MKT) ............................................................................................................................................. 84
FIGURE 36. EXTRACT PAYLOAD (XTP) ........................................................................................................................................... 85
FIGURE 37. REFERENCE CLOCKS GENERATOR (RCG).................................................................................................................... 86
DATA INTERFACE BETWEEN SDH/FRAMER AND MAPPER .............................................................. 87
FIGURE 38. RECEIVE SDH/FRAMER MAPPER INTERFACE ................................................................................................................
FIGURE 39. TRANSMIT SDH/FRAMER MAPPER INTERFACE ..............................................................................................................
FIGURE 40. E1 FRAMER SYNCHRONIZATION FLOW DIAGRAM ..........................................................................................................
FIGURE 41. FLOW OF CRC-4 MULTIFRAME ALIGNMENT FOR INTERWORKING ....................................................................................
87
87
88
90
4.11 E1 PHY LOOPBACK DIAGNOSTICS ............................................................................................................. 93
4.11.1 E1 LOOPBACKS......................................................................................................................................................... 93
FIGURE 42. E1 FACILITY LOOPBACK ............................................................................................................................................... 93
4.11.2 E1 FACILITY I/O LOOPBACK .................................................................................................................................... 94
FIGURE 43. E1 FACILITY I/O LOOPBACK ......................................................................................................................................... 94
4.11.3 E1 MODULE LOOPBACK ......................................................................................................................................... 95
FIGURE 44. E1 MODULE LOOPBACK................................................................................................................................................ 95
4.11.4 ALARM AND AUTO AIS ............................................................................................................................................. 96
FIGURE 45. E1 AUTO AIS INSERTION ............................................................................................................................................. 96
TABLE 13: E1 TO STM-0 - RESPONSE TIME < 125 US ..................................................................................................................... 96
TABLE 14: STM-0 TO E1 - RESPONSE TIME < 125 USEC ................................................................................................................. 96
5.0 ANALOG FRONT END / LINE INTERFACE UNIT (LIU) SECTION...................................................... 98
FIGURE 46. SIMPLIFIED BLOCK DIAGRAM OF THE LIU SECTION ....................................................................................................... 98
5.1 TRANSMIT LINE INTERFACE UNIT................................................................................................................. 99
5.1.1 JITTER ATTENUATOR................................................................................................................................................. 99
5.1.2 TAOS (TRANSMIT ALL ONES).................................................................................................................................... 99
II
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
FIGURE 47. TAOS (TRANSMIT ALL ONES) ...................................................................................................................................... 99
5.1.3 ATAOS (AUTOMATIC TRANSMIT ALL ONES)........................................................................................................... 99
FIGURE 48. SIMPLIFIED BLOCK DIAGRAM OF THE ATAOS FUNCTION ............................................................................................... 99
5.1.4 QRSS/PRBS GENERATION....................................................................................................................................... 100
5.1.5 TRANSMIT PULSE SHAPER AND FILTER ............................................................................................................... 100
5.1.6 DMO (DIGITAL MONITOR OUTPUT) ......................................................................................................................... 100
5.2 LINE TERMINATION (TTIP/TRING) ................................................................................................................ 100
FIGURE 49. TYPICAL CONNECTION DIAGRAM USING INTERNAL TERMINATION ................................................................................. 100
5.3 RECEIVE PATH LINE INTERFACE ................................................................................................................ 101
FIGURE 50. SIMPLIFIED BLOCK DIAGRAM OF THE RECEIVE PATH ..................................................................................................
5.3.1 LINE TERMINATION (RTIP/RRING)...........................................................................................................................
FIGURE 51. TYPICAL CONNECTION DIAGRAM USING INTERNAL TERMINATION ................................................................................
5.3.2 CLOCK AND DATA RECOVERY ..............................................................................................................................
FIGURE 52. RECOVERED LINE CLOCK PLL TIMING ........................................................................................................................
5.3.3 RECOVERED LINE CLOCK OUTPUTS .....................................................................................................................
FIGURE 53. REF_REC[1:0] RECOVERED LINE CLOCK SELECTION TO OUTPUT PINS .....................................................................
5.3.4 RLOS (RECEIVER LOSS OF SIGNAL)......................................................................................................................
5.3.5 EXLOS (EXTENDED LOSS OF SIGNAL) ..................................................................................................................
5.3.6 JITTER ATTENUATOR...............................................................................................................................................
5.3.7 RXMUTE (RECEIVER LOS WITH DATA MUTING) ...................................................................................................
FIGURE 54. SIMPLIFIED BLOCK DIAGRAM OF THE RXMUTE FUNCTION ..........................................................................................
101
101
101
102
102
102
102
103
103
103
103
103
6.0 MEMORY AND REGISTER MAP......................................................................................................... 104
6.1 MEMORY MAPPED I/O ADDRESSING .......................................................................................................... 104
TABLE 15: CHANNEL MAPPING SCHEME ....................................................................................................................................... 104
6.2 OVERVIEW OF CONTROL REGISTERS........................................................................................................ 104
TABLE 16: MEMORY MAP - E1 FRAMERS ...................................................................................................................................... 104
6.3 SDH OPERATION CONTROL REGISTER DESCRIPTIONS.......................................................................... 105
TABLE 17: INTERRUPT TYPE SELECT (ITS 0X0001H) ................................................................................................................... 105
TABLE 18: RECEIVE STM CLOCK DETECT (RSTMCD 0X0003H) ................................................................................................. 105
TABLE 19: DEVICE ID REGISTER (DEVID 0X0004H) .................................................................................................................... 106
TABLE 20: REVISION ID REGISTER (REVID 0X0005H) ................................................................................................................. 106
TABLE 21: TELECOM BUS PARITY ENABLE (TBPE 0X000BH) ....................................................................................................... 106
TABLE 22: TELECOM BUS PARITY ERROR ENABLE (TBPEE 0X000FH) ......................................................................................... 107
TABLE 23: OPERATION BLOCK INTERRUPT REGISTER 1 (OPIR1 0X0012H) ................................................................................... 107
TABLE 24: OPERATION BLOCK INTERRUPT REGISTER BYTE 0 (OPIR0 0X0013H) .......................................................................... 108
TABLE 25: OPERATION BLOCK INTERRUPT ENABLE REGISTER BYTE 1 (OPIER1 0X0016H) ........................................................... 109
TABLE 26: OPERATION BLOCK INTERRUPT ENABLE REGISTER BYTE 0 (OPIER0 0X0017H) ........................................................... 110
TABLE 27: DE-SYNC AND AU3 MAPPING CONTROL (DSAU3MC 0X001BH) .................................................................................. 110
TABLE 28: SDH LOOP BACK SELECT (SDHLBS 0X001FH) .......................................................................................................... 111
TABLE 29: HIGH BYTE FRAME BOUNDARY LATENCY (HBFBL 0X0034H) ........................................................................................ 111
TABLE 30: LOW BYTE FRAME BOUNDARY LATENCY (LBFBL 0X0035H) ......................................................................................... 111
TABLE 31: TELECOM BUS CONTROL 1 (TBC1 0X0036H) .............................................................................................................. 112
TABLE 32: TELECOM BUS CONTROL 0 (TBC0 0X0037H) .............................................................................................................. 113
TABLE 33: GENERAL PURPOSE INPUT/OUTPUT (GPIO 0X0047H) .................................................................................................. 114
TABLE 34: GENERAL PURPOSE INPUT/OUTPUT DIRECTION (GPIOD 0X004BH) ............................................................................. 114
TABLE 35: RECOVERED LINE CLOCK REFERENCE 1 (RLCR1 0X004DH) ....................................................................................... 114
TABLE 36: RECOVERED LINE CLOCK REFERENCE 0 (RLCR0 0X004EH) ....................................................................................... 114
TABLE 37: RECOVERED LINE CLOCK SELECT FOR RCLK_REC1 AND RCLK_REC0 HARDWARE PINS .......................................... 115
TABLE 38: CHANNEL INTERRUPT INDICATION REGISTER 11 (CHIIR11 0X0054H) ........................................................................... 116
TABLE 39: CHANNEL INTERRUPT INDICATION REGISTER 10 (CHIIR10 0X0055H) ........................................................................... 116
TABLE 40: CHANNEL INTERRUPT INDICATION REGISTER 9 (CHIIR9 0X0056H) ............................................................................... 116
TABLE 41: CHANNEL INTERRUPT INDICATION REGISTER 8 (CHIIR8 0X0057H) ............................................................................... 116
TABLE 42: CHANNEL INTERRUPT INDICATION REGISTER 7 (CHIIR7 0X0058H) ............................................................................... 117
TABLE 43: CHANNEL INTERRUPT INDICATION REGISTER 6 (CHIIR6 0X0059H) ............................................................................... 117
TABLE 44: CHANNEL INTERRUPT INDICATION REGISTER 5 (CHIIR5 0X005AH) ............................................................................... 117
TABLE 45: CHANNEL INTERRUPT INDICATION REGISTER 4 (CHIIR4 0X005BH) ............................................................................... 117
TABLE 46: CHANNEL INTERRUPT INDICATION REGISTER 3 (CHIIR3 0X005CH) ............................................................................... 118
TABLE 47: CHANNEL INTERRUPT INDICATION REGISTER 2 (CHIIR2 0X005DH) ............................................................................... 118
TABLE 48: CHANNEL INTERRUPT INDICATION REGISTER 1 (CHIIR1 0X005EH) ............................................................................... 118
TABLE 49: CHANNEL INTERRUPT INDICATION REGISTER 0 (CHIIR0 0X005FH) ............................................................................... 118
6.4 RECEIVE TRANSPORT OVERHEAD OPERATION CONTROL REGISTER DESCRIPTIONS..................... 119
TABLE 50: RECEIVE STM-0/STM-1 TRANSPORT CONTROL REGISTER 1 (RTCR1 = 0X0202) ........................................................ 119
TABLE 51: RECEIVE STM-0/STM-1 TRANSPORT CONTROL REGISTER 0 (RTCR0 = 0X0203) ....................................................... 119
TABLE 52: RECEIVE STM-0/STM-1 TRANSPORT STATUS REGISTER 1 (RTSR1 = 0X0206) ........................................................... 121
TABLE 53: RECEIVE STM-0/STM-1 TRANSPORT STATUS REGISTER 0 (RTSR0 = 0X0207) .......................................................... 122
TABLE 54: RECEIVE STM-0/STM-1 TRANSPORT INTERRUPT STATUS REGISTER 2 (RTISR2 = 0X0209) ........................................ 124
III
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
TABLE 55: RECEIVE STM-0/STM-1 TRANSPORT INTERRUPT STATUS REGISTER 1 (RTISR1 = 0X020A) ........................................ 125
TABLE 56: RECEIVE STM-0/STM-1 TRANSPORT INTERRUPT STATUS REGISTER 0 (RTISR0 = 0X020B) ........................................ 127
TABLE 57: RECEIVE STM-0/STM-1 TRANSPORT INTERRUPT ENABLE REGISTER 2 (RTIER2 = 0X020D) ........................................ 129
TABLE 58: RECEIVE STM-0/STM-1 TRANSPORT INTERRUPT ENABLE REGISTER 1 (RTIER1 = 0X020E) ........................................ 130
TABLE 59: RECEIVE STM-0/STM-1 TRANSPORT INTERRUPT STATUS REGISTER 0 (RTIER0 = 0X020F) ........................................ 132
TABLE 60: RECEIVE STM-0/STM-1 TRANSPORT - B1 BYTE ERROR COUNT REGISTER 3 (B1BECR3 = 0X0210) ........................... 133
TABLE 61: RECEIVE STM-0/STM-1 TRANSPORT - B1 BYTE ERROR COUNT REGISTER 2 (B1BECR2 = 0X0211) ........................... 134
TABLE 62: RECEIVE STM-0/STM-1 TRANSPORT - B1 BYTE ERROR COUNT REGISTER 1 (B1BECR1 = 0X0212) ........................... 134
TABLE 63: RECEIVE STM-0/STM-1 TRANSPORT - B1 BYTE ERROR COUNT REGISTER 0 (B1BECR0 = 0X0213) ........................... 135
TABLE 64: RECEIVE STM-0/STM-1 TRANSPORT - B2 BYTE ERROR COUNT REGISTER 3 (B2BECR3= 0X0214) ............................ 135
TABLE 65: RECEIVE STM-0/STM-1 TRANSPORT - B2 BYTE ERROR COUNT REGISTER 2 (B2BECR2 = 0X0215) ........................... 136
TABLE 66: RECEIVE STM-0/STM-1 TRANSPORT - B2 BYTE ERROR COUNT REGISTER 1 (B2BECR1 = 0X0216) ........................... 136
TABLE 67: RECEIVE STM-0/STM-1 TRANSPORT - B2 BYTE ERROR COUNT REGISTER 0 (B2BECR0 = 0X0217) ........................... 137
TABLE 68: RECEIVE STM-0/STM-1 TRANSPORT - REI-L EVENT COUNT REGISTER 3 (REILECR3 = 0X0218) ............................... 137
TABLE 69: RECEIVE STM-0/STM-1 TRANSPORT - REI-L EVENT COUNT REGISTER 2 (REILECR2 = 0X0219) ............................... 138
TABLE 70: RECEIVE STM-0/STM-1 TRANSPORT - REI-L EVENT COUNT REGISTER 1 (REILECR1 = 0X021A) .............................. 138
TABLE 71: RECEIVE STM-0/STM-1 TRANSPORT - REI-L EVENT COUNT REGISTER 0 (REILECR0 = 0X021B) .............................. 139
TABLE 72: RECEIVE STM-0/STM-1 TRANSPORT - RECEIVED K1 BYTE VALUE REGISTER (RK1BVR = 0X021F) ............................ 139
TABLE 73: RECEIVE STM-0/STM-1 TRANSPORT - RECEIVED K2 BYTE VALUE REGISTER (RK2BVR = 0X0223) ............................. 139
TABLE 74: RECEIVE STM-0/STM-1 TRANSPORT - RECEIVED S1 BYTE VALUE REGISTER (RS1BVR = 0X0227) ............................. 140
TABLE 75: RECEIVE STM-0/STM-1 TRANSPORT - RECEIVE IN-SYNC THRESHOLD REGISTER (RISTR = 0X022B) .......................... 140
TABLE 76: RECEIVE STM-0/STM-1 TRANSPORT - LOS THRESHOLD VALUE 1 (LOSTV1 = 0X022E) ............................................. 140
TABLE 77: RECEIVE STM-0/STM-1 TRANSPORT - LOS THRESHOLD VALUE 0 (LOSTV0 = 0X022F) ............................................. 141
TABLE 78: RECEIVE STM-0/STM-1 TRANSPORT - RECEIVE SF SET MONITOR INTERVAL 2 (RSFSMI2= 0X0231) ......................... 141
TABLE 79: RECEIVE STM-0/STM-1 TRANSPORT - RECEIVE SF SET MONITOR INTERVAL 1 (RSFSMI1 = 0X0232) ........................ 141
TABLE 80: RECEIVE STM-0/STM-1 TRANSPORT - RECEIVE SF SET MONITOR INTERVAL 0 (RSFSMI0 = 0X0233) ........................ 143
TABLE 81: RECEIVE STM-0/STM-1 TRANSPORT - RECEIVE SF SET THRESHOLD 1 (RSFST1= 0X0236) ...................................... 143
TABLE 82: RECEIVE STM-0/STM-1 TRANSPORT - RECEIVE SF SET THRESHOLD 0 (RSFST0 = 0X0237) ..................................... 144
TABLE 83: RECEIVE STM-0 TRANSPORT - RECEIVE SF CLEAR THRESHOLD 2 (RSFCT2= 0X023A) ............................................ 144
TABLE 84: RECEIVE STM-0 TRANSPORT - RECEIVE SF CLEAR THRESHOLD 1 (RSFCT1 = 0X023B) ........................................... 144
TABLE 85: RECEIVE STM-0 TRANSPORT - RECEIVE SD SET MONITOR INTERVAL 0 (RSFCT0 = 0X023D) ..................................... 145
TABLE 86: RECEIVE STM-0 TRANSPORT - RECEIVE SD SET MONITOR INTERVAL 1 (RSDSMI1 = 0X023E) ................................... 145
TABLE 87: RECEIVE STM-0 TRANSPORT - RECEIVE SD SET MONITOR INTERVAL 0 (RSDSMI0 = 0X023F) .................................... 146
TABLE 88: RECEIVE STM-0 TRANSPORT - RECEIVE SD SET THRESHOLD 1 (RSDST1= 0X0242) ................................................. 146
TABLE 89: RECEIVE STM-0 TRANSPORT - RECEIVE SD SET THRESHOLD 0 (RSDST0 = 0X0243) ................................................ 147
TABLE 90: RECEIVE STM-0 TRANSPORT - RECEIVE SD CLEAR THRESHOLD 1 (RSDCT1= 0X0246) ............................................ 147
TABLE 91: RECEIVE STM-0 TRANSPORT - RECEIVE SD CLEAR THRESHOLD 0 (RSDCT0 = 0X0247) ........................................... 147
TABLE 92: RECEIVE STM-0 TRANSPORT - FORCE SEF DEFECT CONDITION REGISTER (FSDCR = 0X024B) ................................. 148
TABLE 93: RECEIVE STM-0 TRANSPORT - RECEIVE SECTION TRACE MESSAGE BUFFER CONTROL REGISTER (RSTMBCR = 0X024F)
149
TABLE 94: RECEIVE STM-0 TRANSPORT - RECEIVE SD BURST ERROR TOLERANCE 1 (RSDBET1 = 0X0252) ............................... 150
TABLE 95: RECEIVE STM-0 TRANSPORT - RECEIVE SD BURST ERROR TOLERANCE 0 (RSDBET0 = 0X0253) ............................... 150
TABLE 96: RECEIVE STM-0 TRANSPORT - RECEIVE SF BURST ERROR TOLERANCE 1 (RSFBET1 = 0X0256) ............................... 151
TABLE 97: RECEIVE STM-0 TRANSPORT - RECEIVE SF BURST ERROR TOLERANCE 0 (RSFBET0 = 0X0257) ............................... 151
TABLE 98: RECEIVE STM-0 TRANSPORT - RECEIVE SD CLEAR MONITOR INTERVAL 2 (RSDCMI2= 0X0259) ................................. 152
TABLE 99: RECEIVE STM-0 TRANSPORT - RECEIVE SD CLEAR MONITOR INTERVAL 1 (RSDCMI1 = 0X025A) ............................... 152
TABLE 100: RECEIVE STM-0 TRANSPORT - RECEIVE SD CLEAR MONITOR INTERVAL 0 (RSDCMI0 = 0X025B) ............................. 153
TABLE 101: RECEIVE STM-0 TRANSPORT - RECEIVE SF CLEAR MONITOR INTERVAL 2 (RSFCMI2= 0X025D) ............................... 153
TABLE 102: RECEIVE STM-0 TRANSPORT - RECEIVE SF CLEAR MONITOR INTERVAL 1 (RSFCMI1 = 0X025E) .............................. 154
TABLE 103: RECEIVE STM-0 TRANSPORT - RECEIVE SF CLEAR MONITOR INTERVAL 0 (RSFCMI0 = 0X025F) .............................. 154
TABLE 104: RECEIVE STM-0 TRANSPORT - AUTO AIS CONTROL REGISTER (AAISCR = 0X0263) ................................................. 155
TABLE 105: RECEIVE STM-0 TRANSPORT - SERIAL PORT CONTROL REGISTER (RTSPCR= 0X0267) ............................................ 156
TABLE 106: RECEIVE STM-0 TRANSPORT - AUTO AIS(IN DOWNSTREAM E1S) CONTROL REGISTER (AAISDSCR= 0X026B) ......... 157
TABLE 107: RECEIVE STM-0/STM-1 TRANSPORT - A1, A2 BYTE ERROR COUNT REGISTER 1 (A1A2BE1 = 0X026E) ................... 158
TABLE 108: RECEIVE STM-0/STM-1 TRANSPORT - A1, A2 BYTE ERROR COUNT REGISTER 0 (A1A2BE0 = 0X026F) ................... 158
TABLE 109: RECEIVE STM-0/STM-1 TRANSPORT - TOH CAPTURE BUFFER INDIRECT ADDRESS REGISTER - BYTE 1 (ADDRESS LOCATION=
0X027A) ..................................................................................................................................................................... 159
TABLE 110: RECEIVE STM-0/STM-1 TRANSPORT - TOH CAPTURE BUFFER INDIRECT ADDRESS REGISTER - BYTE 0 (ADDRESS LOCATION=
0X027B) ..................................................................................................................................................................... 159
TABLE 111: RECEIVE STM-0/STM-1 TRANSPORT - TOH CAPTURE BUFFER INDIRECT DATA REGISTER - BYTE 0 (ADDRESS LOCATION=
0X027F) ..................................................................................................................................................................... 159
6.5 RECEIVE PATH OVERHEAD OPERATION CONTROL REGISTER DESCRIPTIONS ................................. 160
TABLE 112: RECEIVE STM-0 PATH - RECEIVE CONTROL REGISTER 0 (RCR0 = 0X0283) .............................................................. 160
TABLE 113: RECEIVE STM-0 PATH - CONTROL REGISTER (PCR = 0X0286) ................................................................................. 161
TABLE 114: RECEIVE STM-0 PATH - SDH RECEIVE POH STATUS (RPOHS = 0X0287) ............................................................... 161
TABLE 115: RECEIVE STM-0 PATH - SDH RECEIVE PATH INTERRUPT STATUS 2 (RPIS2 = 0X0289) ............................................. 163
IV
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 116: RECEIVE STM-0 PATH - SDH RECEIVE PATH INTERRUPT STATUS 1 (RPIS1 = 0X028A) ............................................ 164
TABLE 117: RECEIVE STM-0 PATH - SDH RECEIVE PATH INTERRUPT STATUS 0 (RPIS0 = 0X028B) ............................................ 166
TABLE 118: RECEIVE STM-0 PATH - SDH RECEIVE PATH INTERRUPT ENABLE 2 (RPIE2 = 0X028D) ............................................ 169
TABLE 119: RECEIVE STM-0 PATH - SDH RECEIVE PATH INTERRUPT ENABLE 1 (RPIE1 = 0X028E) ............................................ 170
TABLE 120: RECEIVE STM-0 PATH - SDH RECEIVE PATH INTERRUPT ENABLE 0 (RPIE0 = 0X028F) ............................................. 172
TABLE 121: RECEIVE STM-0 PATH - SDH RECEIVE RDI-P REGISTER (RRDIPR = 0X0293) ......................................................... 174
TABLE 122: RECEIVE STM-0 PATH - RECEIVED PATH LABEL VALUE (RPLV = 0X0296) ................................................................. 174
TABLE 123: RECEIVE STM-0 PATH - EXPECTED PATH LABEL VALUE (EPLV = 0X0297) ................................................................ 175
TABLE 124: RECEIVE STM-0 PATH - B3 BYTE ERROR COUNT REGISTER 3 (B3BECR3 = 0X0298) .............................................. 175
TABLE 125: RECEIVE STM-0 PATH - B3 BYTE ERROR COUNT REGISTER 2 (B3BECR2 = 0X0299) .............................................. 176
TABLE 126: RECEIVE STM-0 PATH - B3 BYTE ERROR COUNT REGISTER 1 (B3BECR1 = 0X029A) .............................................. 176
TABLE 127: RECEIVE STM-0 PATH - B3 BYTE ERROR COUNT REGISTER 0 (B3BECR0 = 0X029B) .............................................. 177
TABLE 128: RECEIVE STM-0 PATH - REI-P EVENT COUNT REGISTER 3 (REIPECR3 = 0X029C) ................................................. 177
TABLE 129: RECEIVE STM-0 PATH - REI-P EVENT COUNT REGISTER 2 (REIPECR2 = 0X029D) ................................................. 178
TABLE 130: RECEIVE STM-0 PATH - REI-P EVENT COUNT REGISTER 1 (REIPECR1 = 0X029E) .................................................. 178
TABLE 131: RECEIVE STM-0 PATH - REI-P EVENT COUNT REGISTER 0 (REIPECR0 = 0X029F) .................................................. 179
TABLE 132: RECEIVE STM-0 PATH - RECEIVE PATH TRACE MESSAGE BUFFER CONTROL REGISTER (RPTMBCR = 0X02A3) ....... 179
TABLE 133: RECEIVE STM-0 PATH - POINTER VALUE 1 (PV1 = 0X02A6) ..................................................................................... 180
TABLE 134: RECEIVE STM-0 PATH - POINTER VALUE 0 (PV0 = 0X02A7) ..................................................................................... 181
TABLE 135: RECEIVE STM-1 PATH - LOSS OF POINTER CONCATENATION DEFECT (RLOPCDSR= 0X02AB) ................................. 181
TABLE 136: RECEIVE STM-1 PATH - AIS CONCATENATION DEFECT (RAISCDSR= 0X02B3) ........................................................ 182
TABLE 137: RECEIVE STM-0 PATH - RECEIVE AUTO AIS - C2 BYTE VALUE REGISTER (AISC2VR = 0X02B9) .............................. 182
TABLE 138: RECEIVE STM-0 PATH - RECEIVE AUTO AIS - C2 BYTE CONTROL REGISTER (AISC2CR = 0X02BA) ......................... 183
TABLE 139: RECEIVE STM-0 PATH - AUTO AIS CONTROL REGISTER (AUTOACR = 0X02BB) ..................................................... 183
TABLE 140: RECEIVE STM-0 PATH - SERIAL PORT CONTROL REGISTER (RPSPCR= 0X02BF) ..................................................... 185
TABLE 141: RECEIVE STM-0 PATH - SDH RECEIVE AUTO ALARM REGISTER (RAAR = 0X02C3) .................................................. 185
TABLE 142: RECEIVE STM-0 PATH - RECEIVE NEGATIVE POINTER ADJUSTMENT COUNT REGISTER 1 (RNPACR1 = 0X02C4) ....... 187
TABLE 143: RECEIVE STM-0 PATH - RECEIVE NEGATIVE POINTER ADJUSTMENT COUNT REGISTER 0 (RNPACR0 = 0X02C5) ....... 187
TABLE 144: RECEIVE STM-0 PATH - RECEIVE POSITIVE POINTER ADJUSTMENT COUNT REGISTER 1 (RPPACR1 = 0X02C6) ........ 188
TABLE 145: RECEIVE STM-0 PATH - RECEIVE POSITIVE POINTER ADJUSTMENT COUNT REGISTER 0 (RPPACR0 = 0X02C7) ........ 188
TABLE 146: RECEIVE STM-0 PATH - RECEIVE J1 BYTE CAPTURE REGISTER (RJ1BCR = 0X02D3) ............................................... 188
TABLE 147: RECEIVE STM-0 PATH - RECEIVE B3 BYTE CAPTURE REGISTER (RB3BCR = 0X02D7) ............................................. 189
TABLE 148: RECEIVE STM-0 PATH - RECEIVE C2 BYTE CAPTURE REGISTER (RC2BCR = 0X02DB) ............................................. 189
TABLE 149: RECEIVE STM-0 PATH - RECEIVE G1 BYTE CAPTURE REGISTER (RG1BCR = 0X02DF) ............................................ 189
TABLE 150: RECEIVE STM-0 PATH - RECEIVE F2 BYTE CAPTURE REGISTER (RF2BCR = 0X02E3) .............................................. 189
TABLE 151: RECEIVE STM-0 PATH - RECEIVE H4 BYTE CAPTURE REGISTER (RH4BCR = 0X02E7) ............................................. 190
TABLE 152: RECEIVE STM-0 PATH - RECEIVE Z3 BYTE CAPTURE REGISTER (RZ3BCR = 0X02EB) .............................................. 190
TABLE 153: RECEIVE STM-0 PATH - RECEIVE Z4 (K3) BYTE CAPTURE REGISTER (RZ4BCR = 0X02EF) ...................................... 190
TABLE 154: RECEIVE STM-0 PATH - RECEIVE Z5 BYTE CAPTURE REGISTER (RZ5BCR = 0X02F3) .............................................. 190
6.6 TRANSMIT TRANSPORT OVERHEAD PORT CONTROL REGISTER DESCRIPTIONS ............................. 191
TABLE 155: TRANSMIT STM-0 SECTION CONTROL REGISTER 3 (TSCR3 0X0700H) ...................................................................... 191
TABLE 156: TRANSMIT STM-0 SECTION CONTROL REGISTER 2 (TSCR2 0X0701H) ...................................................................... 191
TABLE 157: TRANSMIT STM-0 SECTION CONTROL REGISTER 1 (TSCR1 0X0702H) ...................................................................... 192
TABLE 158: SOURCE OF M0/M1 BYTE .......................................................................................................................................... 193
TABLE 159: TRANSMIT STM-0 SECTION CONTROL REGISTER 0 (TSCR0 0X0703H) ...................................................................... 194
TABLE 160: TRANSMIT STM-0 SECTION A1 BYTE ERROR MASK (TSA1EM 0X0717H) .................................................................. 196
TABLE 161: TRANSMIT STM-0 SECTION A2 BYTE ERROR MASK (TSA2EM 0X071FH) .................................................................. 196
TABLE 162: TRANSMIT STM-0 SECTION B1 BYTE ERROR MASK (TSB1EM 0X0723H) .................................................................. 197
TABLE 163: TRANSMIT STM-0 SECTION B2 BYTE SELECT ERROR ENABLE (TSB2SEE 0X0727H) ................................................. 197
TABLE 164: TRANSMIT STM-0 SECTION B2 BYTE ERROR MASK (TSB2EM 0X072BH) .................................................................. 198
TABLE 165: TRANSMIT STM-0 SECTION K2 BYTE VALUE REGISTER (TSK2VR 0X072EH) ............................................................. 199
TABLE 166: TRANSMIT STM-0 SECTION K1 BYTE VALUE REGISTER (TSK1VR 0X072FH) ............................................................. 199
TABLE 167: TRANSMIT STM-0 SECTION MS-RDI CONTROL REGISTER (TSMSRDICR 0X0733H) .................................................. 200
TABLE 168: TRANSMIT STM-0 SECTION M0M1 BYTE VALUE REGISTER (TSM0M1VR 0X0737H) .................................................. 201
TABLE 169: TRANSMIT STM-0 SECTION - S1 BYTE VALUE REGISTER (TSS1VR 0X073B) ............................................................. 201
TABLE 170: TRANSMIT STM-0 SECTION - F1 BYTE VALUE REGISTER (TSF1VR 0X073F) ............................................................ 201
TABLE 171: TRANSMIT STM-0 SECTION - E1 BYTE VALUE REGISTER (TSE1VR 0X0743) ............................................................ 202
TABLE 172: TRANSMIT STM-0 SECTION - E2 BYTE VALUE REGISTER (TSE2VR 0X0747) ............................................................ 202
TABLE 173: TRANSMIT STM-0 SECTION - J0 BYTE VALUE REGISTER (TSJ0VR 0X074B) .............................................................. 202
TABLE 174: TRANSMIT STM-0 SECTION - TRANSMITTER J0 BYTE CONTROL REGISTER (TSJ0CR 0X074F) ................................... 203
6.7 TRANSMIT PATH OVERHEAD PROCESSOR BLOCK REGISTERS ........................................................... 204
TABLE 175: TRANSMIT STM-0 PATH CONTROL REGISTER - BYTE 2 (TPCR2 0X0781) .................................................................. 204
TABLE 176: TRANSMIT STM-0 PATH CONTROL REGISTER - BYTE 1 (TPCR1 0X0782) .................................................................. 205
TABLE 177: TRANSMIT STM-0 PATH CONTROL REGISTER - BYTE 0 (TPCR0 0X0783) .................................................................. 206
TABLE 178: TRANSMIT STM-0 PATH J1 BYTE VALUE REGISTER (TPJ1VR 0X0793) ...................................................................... 208
TABLE 179: TRANSMIT STM-0 PATH B3 BYTE ERROR MASK REGISTER (TPB3EM 0X0797) ......................................................... 208
V
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
TABLE 180: TRANSMIT STM-0 PATH C2 BYTE VALUE REGISTER (TPC2VR 0X079B) ................................................................... 208
TABLE 181: TRANSMIT STM-0 PATH G1 BYTE VALUE REGISTER (TPG1VR 0X079F) ................................................................... 209
TABLE 182: TRANSMIT STM-0 PATH F2 BYTE VALUE REGISTER (TPF2VR 0X07A3) .................................................................... 209
TABLE 183: TRANSMIT STM-0 PATH H4 BYTE VALUE REGISTER (TPH4VR 0X07A7) ................................................................... 209
TABLE 184: TRANSMIT STM-0 PATH Z3 BYTE VALUE REGISTER (TPZ3VR 0X07AB) .................................................................... 210
TABLE 185: TRANSMIT STM-0 PATH Z4 BYTE VALUE REGISTER (TPZ4VR 0XN9AF) ................................................................... 210
TABLE 186: TRANSMIT STM-0 PATH Z5 BYTE VALUE REGISTER (TPZ5VR 0X07B3) .................................................................... 210
TABLE 187: TRANSMIT STM-0 PATH POINTER CONTROL REGISTER (TPPCR 0X07B7) ................................................................. 211
TABLE 188: TRANSMIT STM-0 PATH J1 CONTROL REGISTER (TPJ1CR 0X07BB) ......................................................................... 213
TABLE 189: TRANSMIT STM-0 PATH ARBITRARY H1 POINTER REGISTER (TPH1PR 0X07BF) ....................................................... 213
TABLE 190: TRANSMIT STM-0 PATH ARBITRARY H2 POINTER REGISTER (TPH2PR 0X07C3) ....................................................... 214
TABLE 191: TRANSMIT STM-0 PATH CURRENT POINTER BYTE REGISTER - BYTE 1 (TPCPR1 0X07C6) ........................................ 214
TABLE 192: TRANSMIT STM-0 PATH CURRENT POINTER BYTE REGISTER - BYTE 0 (TPCPR0 0X07C7) ........................................ 214
TABLE 193: TRANSMIT STM-0 PATH HP-RDI CONTROL REGISTER - BYTE 2 (TPHP-RDICR2 0X07C9) ........................................ 215
TABLE 194: TRANSMIT STM-0 PATH HP-RDI CONTROL REGISTER - BYTE 1 (TPHP-RDICR1 0X07CA) ....................................... 216
TABLE 195: TRANSMIT STM-0 PATH HP-RDI CONTROL REGISTER - BYTE 0 (TPHP-RDICR0 0X07CB) ....................................... 217
TABLE 196: TRANSMIT STM-0 PATH SERIAL PORT CONTROL REGISTER (TPSPCR 0X07CF) ....................................................... 217
6.8 GLOBAL E1 LINE INTERFACE UNIT REGISTER DESCRIPTIONS (LIU) .................................................... 218
TABLE 197: GLOBAL LINE INTERFACE CONTROL REGISTER 5 (GLICR5 0X0100H) ........................................................................ 218
TABLE 198: GLOBAL LINE INTERFACE CONTROL REGISTER 4 (GLICR4 0X0101H) ......................................................................... 219
TABLE 199: GLOBAL LINE INTERFACE CONTROL REGISTER 3 (GLICR3 0X0102H) ......................................................................... 219
6.9 INDIVIDUAL CHANNEL E1 LINE INTERFACE UNIT REGISTER DESCRIPTIONS (LIU) ............................ 220
TABLE 200: CHANNEL LINE INTERFACE CONTROL REGISTER 9 (CLICR9 0XN000H)
TABLE 201: CHANNEL LINE INTERFACE CONTROL REGISTER 8 (CLICR8 0XN001H)
TABLE 202: CHANNEL LINE INTERFACE CONTROL REGISTER 7 (CLICR7 0XN002H)
TABLE 203: CHANNEL LINE INTERFACE CONTROL REGISTER 6 (CLICR6 0XN003H)
TABLE 204: CHANNEL LINE INTERFACE CONTROL REGISTER 5 (CLICR5 0XN004H)
TABLE 205: CHANNEL LINE INTERFACE CONTROL REGISTER 4 (CLICR4 0XN005H)
TABLE 206: CHANNEL LINE INTERFACE CONTROL REGISTER 3 (CLICR3 0XN006H)
TABLE 207: CHANNEL LINE INTERFACE CONTROL REGISTER 2 (CLICR2 0XN007H)
TABLE 208: CHANNEL LINE INTERFACE CONTROL REGISTER 1 (CLICR1 0XN010H)
...................................................................... 220
...................................................................... 221
...................................................................... 222
...................................................................... 223
...................................................................... 224
...................................................................... 225
...................................................................... 226
...................................................................... 227
...................................................................... 228
6.10 E1 SYNCHRONIZATION FRAMER REGISTER DESCRIPTIONS (EGRESS DIRECTION ONLY) ............. 230
TABLE 209: CLOCK SELECT REGISTER (CSR 0XN100H) .............................................................................................................. 230
TABLE 210: FRAMING SELECT REGISTER (FSR 0XN107H) ........................................................................................................... 231
TABLE 211: FRAMING SELECT REGISTER RE-SYNC (FSRRS 0XN10BH) ....................................................................................... 232
TABLE 212: FRAME SYNCHRONIZATION REGISTER (CSR 0XN112H) .............................................................................................. 233
TABLE 213: SLIP BUFFER CONTROL REGISTER (SBCR 0XN116H) ................................................................................................ 233
TABLE 214: BLOCK INTERRUPT STATUS REGISTER (BISR 0XNB00H) ........................................................................................... 234
TABLE 215: BLOCK INTERRUPT ENABLE REGISTER (BIER 0XNB01H) ........................................................................................... 234
TABLE 216: ALARM AND ERROR STATUS REGISTER (AESR 0XNB02H) ......................................................................................... 235
TABLE 217: ALARM AND ERROR INTERRUPT ENABLE REGISTER (AEIER 0XNB03H) ...................................................................... 236
TABLE 218: FRAMER INTERRUPT STATUS REGISTER (FISR 0XNB04H) ......................................................................................... 237
TABLE 219: FRAMER INTERRUPT ENABLE REGISTER (FIER 0XNB05H) ......................................................................................... 238
TABLE 220: SLIP BUFFER STATUS REGISTER (SBSR 0XNB08H) .................................................................................................. 239
TABLE 221: SLIP BUFFER INTERRUPT ENABLE REGISTER (SBIER 0XNB09H) ................................................................................ 239
6.11 VT MAPPING OPERATION CONTROL REGISTER DESCRIPTIONS......................................................... 240
TABLE 222: GLOBAL VT-MAPPER BLOCK - J2 SELECT REGISTER (J2SEL = 0X0C02) ................................................................... 240
TABLE 223: GLOBAL VT-MAPPER BLOCK - VT MAPPER BLOCK CONTROL REGISTER (VTMCR = 0X0C03) .................................... 241
TABLE 224: GLOBAL VT MAPPER BLOCK - TEST PATTERN CONTROL REGISTER 1 (VTMTPCR1 = 0X0C0E) ................................. 242
TABLE 225: GLOBAL VT-MAPPER BLOCK - TEST PATTERN CONTROL REGISTER 0 (VTMTPCR0 = 0X0C0F) ................................. 243
TABLE 226: GLOBAL VT-DEMAPPER BLOCK - TEST PATTERN DROP REGISTER 0 (VTDTPDR0 = 0X0C13) ................................... 244
TABLE 227: GLOBAL VT-DEMAPPER - TEST PATTERN DETECTOR ERROR COUNT REGISTER 1 (VTDTPDECR1 = 0X0C16) .......... 246
TABLE 228: GLOBAL VT-DEMAPPER - TEST PATTERN DETECTOR ERROR COUNT REGISTER 0 (VTDTPDECR0 = 0X0C17) .......... 246
TABLE 229: GLOBAL VT-MAPPER - TRANSMIT TRIBUTARY SIZE SELECT REGISTER 1 (VTMTTSSR1 = 0X0C1A) ........................... 247
TABLE 230: GLOBAL VT-MAPPER - TRANSMIT TRIBUTARY SIZE SELECT REGISTER 0 (VTMTTSSR0 = 0X0C1B) ........................... 249
TABLE 231: GLOBAL VT-DEMAPPER - RECEIVE TRIBUTARY SIZE SELECT REGISTER 1 (VTDRTSSR1 = 0X0C1E) ........................ 251
TABLE 232: GLOBAL VT-DEMAPPER - RECEIVE TRIBUTARY SIZE SELECT REGISTER 0 (VTDRTSSR0 = 0X0C1F) ......................... 252
TABLE 233: CHANNEL CONTROL - VT-MAPPER E1 INSERTION CONTROL REGISTER 1 (VTME1ICR1 = 0XND42) ........................... 254
TABLE 234: CHANNEL CONTROL - VT-MAPPER E1 INSERTION CONTROL REGISTER 0 (VTME1ICR0 = 0XND43) ........................... 256
TABLE 235: CHANNEL CONTROL - VT-DEMAPPER E1 DROP CONTROL REGISTER 3 (VTDE1DCR3 = 0XND44) ............................ 258
TABLE 236: CHANNEL CONTROL - VT-DEMAPPER E1 DROP CONTROL REGISTER 2 (VTDE1DCR2 = 0XND45) ............................ 258
TABLE 237: CHANNEL CONTROL - VT-DEMAPPER E1 DROP CONTROL REGISTER 1 (VTDE1DCR1 = 0XND46) ............................ 259
TABLE 238: CHANNEL CONTROL - VT-DEMAPPER E1 DROP CONTROL REGISTER 0 (VTDE1DCR0 = 0XND47) ............................ 260
TABLE 239: CHANNEL CONTROL - VT-DEMAPPER BIP-2 ERROR COUNT REGISTER 1 (VTDBIP2ECR1 = 0XND4A) ...................... 263
TABLE 240: CHANNEL CONTROL - VT-DEMAPPER BIP-2 ERROR COUNT REGISTER 0 (VTDBIP2ECR0 = 0XND4B) ...................... 263
TABLE 241: CHANNEL CONTROL - VT-DEMAPPER REI-V EVENT COUNT REGISTER 1 (VTDREIECR1 = 0XND4E) ........................ 264
VI
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 242: CHANNEL CONTROL - VT-DEMAPPER REI-V EVENT COUNT REGISTER 0 (VTDREIECR0 = 0XND4F) ........................ 264
TABLE 243: CHANNEL CONTROL - VT-DEMAPPER RECEIVE APS REGISTER 1 (VTDRAPSR1 = 0XND52) .................................... 265
TABLE 244: CHANNEL CONTROL - VT-DEMAPPER RECEIVE APS REGISTER 0 (VTDRAPSR0 = 0XND53) .................................... 267
TABLE 245: CHANNEL CONTROL - VT-MAPPER TRANSMIT APS REGISTER 1 (VTMTAPSR1 = 0XND56) ....................................... 269
TABLE 246: CHANNEL CONTROL - VT-MAPPER TRANSMIT APS/K4 REGISTER 0 (VTMTAPSR0 = 0XND57) .................................. 270
TABLE 247: CHANNEL CONTROL - VT-DEMAPPER TANDEM CONNECTION - RECEIVE BIP-2 ERROR COUNT REGISTER 2 (VTDTCBIP2ECR
= 0XND59) ................................................................................................................................................................. 270
TABLE 248: CHANNEL CONTROL - VT-DEMAPPER TANDEM CONNECTION - RECEIVE REI-V EVENT COUNT REGISTER 1 (VTDTCREIECR
= 0XND5B) ................................................................................................................................................................. 270
TABLE 249: CHANNEL CONTROL - VT-DEMAPPER TANDEM CONNECTION - RECEIVE OEI EVENT COUNT REGISTER 0 (VTDTCOEIECR =
0XND5F) .................................................................................................................................................................... 271
TABLE 250: CHANNEL CONTROL - VT-DEMAPPER INTERRUPT STATUS REGISTER 1 (VTDCSR1 = 0XND60) ................................. 271
TABLE 251: CHANNEL CONTROL - VT-DEMAPPER INTERRUPT STATUS REGISTER 0 (VTDCSR0 = 0XND61) ................................. 272
TABLE 252: CHANNEL CONTROL - VT-DEMAPPER TANDEM CONNECTION STATUS REGISTER
(VTDTCSR = 0XND62) 274
TABLE 253: CHANNEL CONTROL - VT-DEMAPPER J2 BYTE STATUS REGISTER (VTDJ2BSR = 0XND63) ...................................... 276
TABLE 254: CHANNEL CONTROL - VT-DEMAPPER INTERRUPT STATUS REGISTER 1 (VTDCSR1 = 0XND64) ................................. 277
TABLE 255: CHANNEL CONTROL - VT-DEMAPPER INTERRUPT STATUS REGISTER 0 (VTDCSR0 = 0XND65) ................................. 278
TABLE 256: CHANNEL CONTROL - VT-DEMAPPER TANDEM CONNECTION INTERRUPT STATUS REGISTER (VTDTCISR = 0XND66) 280
TABLE 257: CHANNEL CONTROL - VT-DEMAPPER INTERRUPT STATUS REGISTER 0 (VTDISR0 = 0XND67) ................................... 282
TABLE 258: CHANNEL CONTROL - VT-DEMAPPER INTERRUPT ENABLE REGISTER 2 (VTDIER2 = 0XND68) ................................... 283
TABLE 259: CHANNEL CONTROL - VT-DE-MAPPER INTERRUPT ENABLE REGISTER 1 (VTDIER1 = 0XND69) ................................. 284
TABLE 260: CHANNEL CONTROL - VT-DE-MAPPER TANDEM CONNECTION INTERRUPT ENABLE REGISTER (VTDTCIER = 0XND6A) 286
TABLE 261: CHANNEL CONTROL - VT-DE-MAPPER INTERRUPT ENABLE REGISTER 0 (VTDIER0 = 0XND6B) ................................. 288
TABLE 262: CHANNEL CONTROL - VT-DE-MAPPER PATH TRACE BUFFER CONTROL REGISTER (VTDPTBCR = 0XND71) .............. 289
TABLE 263: CHANNEL CONTROL - VT-DE-MAPPER AUTO AIS CONTROL REGISTER 1 (VTDAAISCR1 = 0XND72) ......................... 291
TABLE 264: CHANNEL CONTROL - VT-DE-MAPPER AUTO AIS CONTROL REGISTER 0 (VTDAAISCR0 = 0XND73) ......................... 293
TABLE 265: CHANNEL CONTROL - VT-MAPPER TRANSMIT J2 BYTE VALUE REGISTER (VTMJ2VR = 0XND76) ............................... 296
TABLE 266: CHANNEL CONTROL - VT-MAPPER TRANSMIT N2 BYTE VALUE REGISTER (VTMN2VR = 0XND77) ............................. 296
TABLE 267: CHANNEL CONTROL - VT-MAPPER TRANSMIT PATH TRACE MESSAGE CONTROL REGISTER (VTMPTMCR = 0XND79) 297
TABLE 268: CHANNEL CONTROL - VT-MAPPER TRANSMIT N2 CONTROL REGISTER (VTMN2CR = 0XND7B) ................................. 299
TABLE 269: CHANNEL CONTROL - VT-MAPPER TRANSMIT TANDEM CONNECTION RDI-V CONTROL REGISTER 1 (VTMTCRDICR1 =
0XND7E) .................................................................................................................................................................... 300
TABLE 270: CHANNEL CONTROL - VT-MAPPER TRANSMIT TANDEM CONNECTION RDI-V CONTROL REGISTER 0 (VTMTCRDICR0 =
0XND7F) .................................................................................................................................................................... 301
TABLE 271: CHANNEL CONTROL - VT-MAPPER TRANSMIT TANDEM CONNECTION ODI-V CONTROL REGISTER 1 (VTMTCODICR1 =
0XND82) .................................................................................................................................................................... 303
TABLE 272: CHANNEL CONTROL - VT-MAPPER TRANSMIT TANDEM CONNECTION ODI-V CONTROL REGISTER 0 (VTMTCODICR0 =
0XND83) .................................................................................................................................................................... 304
TABLE 273: CHANNEL CONTROL - VT-MAPPER TRANSMIT RDI-V CONTROL REGISTER 3 (VTMRDICR3 = 0XND84) ..................... 306
TABLE 274: CHANNEL CONTROL - VT-MAPPER TRANSMIT RDI-V CONTROL REGISTER 2 (VTMRDICR2 = 0XND85) ..................... 307
TABLE 275: CHANNEL CONTROL - VT-MAPPER TRANSMIT RDI-V CONTROL REGISTER 1 (VTMRDICR1 = 0XND86) ..................... 308
TABLE 276: CHANNEL CONTROL - VT-MAPPER TRANSMIT RDI-V CONTROL REGISTER 0 (VTMRDICR0 = 0XND87) ..................... 309
TABLE 277: RECEIVE J2 TRACE IDENTIFIER MESSAGE MEMORY BUFFER
(VTDJ2MEM00 = 0X1E00 VTDJ2MEM3F = 0X1E3F) ......................................................................................................................................... 310
TABLE 278: RECEIVE N2 ACCESS POINT IDENTIFIER MESSAGE MEMORY BUFFER
(VTDN2MEM20 = 0XNE20
- VTDN2MEM2F = 0XNE2F) ...................................................................................................................................... 310
TABLE 279: TRANSMIT J2 TRACE IDENTIFIER MESSAGE MEMORY BUFFER
(VTMJ2MEM00 = 0X1F00 VTMJ2MEM3F = 0X1F3F) ......................................................................................................................................... 311
TABLE 280: TRANSMIT N2 ACESS POINT IDENTIFIER MESSAGE MEMORY BUFFER
(VTMN2MEM20 = 0XNF20
- VTMN2MEM2F = 0XNF2F) ..................................................................................................................................... 311
7.0 MICROPROCESSOR INTERFACE TIMING ........................................................................................ 312
7.1 MICROPROCESSOR INTERFACE TIMING - INTEL ASYNCHRONOUS MODE .......................................... 312
FIGURE 55. INTEL-ASYNCHRONOUS MODE TIMING - WRITE OPERATION......................................................................................... 312
TABLE 281 INTEL ASYNCHRONOUS MODE TIMING - WRITE OPERATION ......................................................................................... 313
FIGURE 56. INTEL-ASYNCHRONOUS MODE TIMING - READ OPERATION .......................................................................................... 313
TABLE 282 INTEL ASYNCHRONOUS MODE TIMING - READ OPERATION ........................................................................................... 313
7.2 MICROPROCESSOR INTERFACE TIMING - MOTOROLA ASYNCHRONOUS (68K) MODE...................... 314
FIGURE 57. MOTOROLA-ASYNCHRONOUS MODE TIMING - WRITE OPERATION ................................................................................ 314
TABLE 283 MOTOROLA (68K) ASYNCHRONOUS MODE TIMING INFORMATION - WRITE OPERATION .................................................. 314
7.2.1 MOTOROLA-ASYNCHRONOUS MODE TIMING - READ OPERATION.................................................................. 315
FIGURE 58. MOTOROLA-ASYNCHRONOUS MODE TIMING - READ OPERATION ................................................................................. 315
TABLE 284 MOTOROLA (68K) ASYNCHRONOUS MODE TIMING - READ OPERATION ........................................................................ 315
7.3 POWERPC 403 SYNCHRONOUS MODE:...................................................................................................... 316
FIGURE 59. POWERPC 403 MODE TIMING - WRITE OPERATION .................................................................................................... 316
TABLE 285 POWER PC403 MODE TIMING - WRITE OPERATION ..................................................................................................... 316
FIGURE 60. POWERPC 403 MODE TIMING - READ OPERATION ..................................................................................................... 317
VII
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
TABLE 286 POWER PC403 MODE TIMING - READ OPERATION ...................................................................................................... 317
7.4 MICROPROCESSOR INTERFACE TIMING - MCP860 SYNCHRONOUS MODE ......................................... 318
FIGURE 61. MPC86X MODE TIMING - WRITE OPERATION ............................................................................................................. 318
TABLE 287 MPC86X MODE TIMING - WRITE OPERATION ............................................................................................................. 318
TABLE 288 MPC86X TIMING INFORMATION - READ OPERATION .................................................................................................... 319
FIGURE 62. MPC86X MODE TIMING - READ OPERATION .............................................................................................................. 319
8.0 INTERFACE TIMING SPECIFICATIONS ............................................................................................ 320
8.1 STM-0/STM-1 TELECOM BUS INTERFACE TIMING INFORMATION .......................................................... 320
8.2 THE TRANSMIT STM-0/STM-1 TELECOM BUS INTERFACE TIMING - STM-0 APPLICATIONS ............... 320
FIGURE 63. AN ILLUSTRATION OF THE WAVEFORMS OF THE SIGNALS THAT ARE OUTPUT VIA THE TRANSMIT STM-0/STM-1 TELECOM BUS
INTERFACE (FOR STM-0 APPLICATIONS) ...................................................................................................................... 320
TABLE 289 TIMING INFORMATION FOR THE TRANSMIT STM-0 TELECOM BUS INTERFACE - STM-0 APPLICATIONS ........................... 321
8.3 THE TRANSMIT STM-0/STM-1 TELECOM BUS INTERFACE TIMING - STM-1 SLOT MASTER APPLICATIONS
321
FIGURE 64. AN ILLUSTRATION OF THE WAVEFORMS OF THE SIGNALS THAT ARE OUTPUT VIA THE TRANSMIT STM-0/STM-1 TELECOM BUS
INTERFACE (FOR STM-1 APPLICATIONS) ...................................................................................................................... 321
FIGURE 65. AN ILLUSTRATION OF THE TIMING RELATIONSHIPS BETWEEN THE TXSBFP_IN_OUT OUTPUT PIN, AND THE TXA_CLK OUTPUT
PIN, WITHIN THE TRANSMIT STM-1 TELECOM BUS INTERFACE (SLOT MASTER MODE APPLICATION) ............................... 322
TABLE 290 TIMING INFORMATION FOR THE TRANSMIT STM-0/STM-1 TELECOM BUS INTERFACE - STM-1 SLOT MASTER APPLICATIONS
322
8.4 THE TRANSMIT STM-0/STM-1 TELECOM BUS INTERFACE TIMING - STM-1 SLOT SLAVE APPLICATIONS
323
FIGURE 66. AN ILLUSTRATION OF THE WAVEFORMS OF THE SIGNALS THAT ARE OUTPUT VIA THE TRANSMIT STM-0/STM-1 TELECOM BUS
INTERFACE (FOR STM-1 APPLICATIONS) ...................................................................................................................... 323
FIGURE 67. AN ILLUSTRATION OF THE TIMING RELATIONSHIPS BETWEEN THE TXSBFP INPUT PIN AND THE TXA_CLK OUTPUT PIN WITHIN THE
TRANSMIT STM-0/STM-1 TELECOM BUS INTERFACE (STM-1 SLOT SLAVE APPLICATIONS) ........................................... 323
TABLE 291 TIMING INFORMATION FOR THE TRANSMIT STM-0/STM-1 TELECOM BUS INTERFACE - STM-1 SLOT SLAVE APPLICATIONS 324
8.5 THE RECEIVE STM-0/STM-1 TELECOM BUS INTERFACE TIMING - STM-0 APPLICATIONS.................. 324
FIGURE 68. AN ILLUSTRATION OF THE WAVEFORMS OF THE SIGNALS THAT ARE INPUT VIA THE RECEIVE STM-0/STM-1 TELECOM BUS INTERFACE ..................................................................................................................................................................... 324
TABLE 292 TIMING INFORMATION FOR THE RECEIVE STM-0/STM-1 TELECOM BUS INTERFACE - STM-0 APPLICATIONS ................. 324
8.6 THE RECEIVE STM-0/STM-1 TELECOM BUS INTERFACE TIMING - STM-1 APPLICATIONS.................. 325
FIGURE 69. AN ILLUSTRATION OF THE WAVEFORMS OF THE SIGNALS THAT ARE INPUT VIA THE RECEIVE STM-0/STM-1 TELECOM BUS INTERFACE ..................................................................................................................................................................... 325
TABLE 293 TIMING INFORMATION FOR THE RECEIVE STM-0/STM-1 TELECOM BUS INTERFACE - STM-1 APPLICATIONS ................. 325
8.7 STM-0 LIU INTERFACE TIMING INFORMATION .......................................................................................... 326
8.7.1 RECEIVE STM-0/STM-1 LIU INTERFACE TIMING.................................................................................................... 326
FIGURE 70. AN ILLUSTRATION OF THE WAVEFORMS OF THE RECEIVE STM-0/STM-1 SIGNALS THAT ARE INPUT TO THE RECEIVE STM-0/
STM-1 LIU INTERFACE BLOCK - SHARED PORT ........................................................................................................... 326
TABLE 294 TIMING INFORMATION FOR THE RECEIVE STM-0/STM-1 LIU INTERFACE WHEN THE RECEIVE STM-0/STM-1 TOH PROCESSOR
BLOCK HAS BEEN CONFIGURED TO SAMPLE THE RXSTM0DATA SIGNAL UPON THE RISING EDGE OF THE RXSTM0CLK SIGNAL
326
8.7.2 TRANSMIT STM-0/STM-1 LIU INTERFACE TIMING................................................................................................. 327
FIGURE 71. AN ILLUSTRATION OF THE WAVEFORMS OF THE STM-0/STM-1 SIGNALS THAT ARE OUTPUT FROM THE TRANSMIT STM-0/STM1 LIU INTERFACE - DEDICATED PORT ........................................................................................................................... 327
TABLE 295 TIMING INFORMATION FOR THE TRANSMIT STM-0/STM-1 LIU INTERFACE WHEN THE TRANSMIT STM-0/STM-1 TOH PROCESSOR BLOCK HAS BEEN CONFIGURED TO UPDATE THE TXSTM0DATA SIGNAL UPON THE RISING EDGE OF THE TXSTM0CLK SIGNAL
327
8.8 TRANSMIT STM-0/STM-1 TOH AND POH DATA INPUT PORT ................................................................... 328
FIGURE 72. ILLUSTRATION OF TIMING WAVE-FORM OF THE TRANSMIT STM-0/STM-1 TOH AND POH OVERHEAD DATA INPUT PORT 328
TABLE 296 TIMING INFORMATION FOR THE TRANSMIT STM-0/STM-1 TOH AND POH OVERHEAD DATA INPUT PORT ..................... 328
8.9 TRANSMIT VC-4 POH DATA INPUT PORT ................................................................................................... 329
FIGURE 73. ILLUSTRATION OF TIMING WAVE-FORM OF THE TRANSMIT VC-4 POH DATA INPUT PORT ............................................. 329
TABLE 297 TIMING INFORMATION FOR THE TRANSMIT VC-4 POH DATA INPUT PORT ..................................................................... 329
8.10 RECEIVE STM-0/STM-1 TOH AND POH DATA OUTPUT PORT ................................................................ 330
FIGURE 74. ILLUSTRATION OF THE TIMING WAVE-FORM OF THE RECEIVE STM-0/STM-1 TOH AND POH DATA OUTPUT PORT...... 330
TABLE 298 TIMING INFORMATION FOR THE RECEIVE STM-0/STM-1 TOH AND POH DATA OUTPUT PORT ..................................... 330
8.11 RECEIVE VC-4 POH DATA OUTPUT PORT ................................................................................................ 331
FIGURE 75. ILLUSTRATION OF THE TIMING WAVE-FORM OF THE RECEIVE VC-4 POH DATA OUTPUT PORT ..................................... 331
TABLE 299 TIMING INFORMATION FOR THE RECEIVE VC-4 POH DATA OUTPUT PORT ................................................................... 331
8.12 INGRESS DIRECTION - ADD/DROP PORT TIMING.................................................................................... 332
8.12.1 INGRESS DIRECTION - ADD PORT TIMING .......................................................................................................... 332
FIGURE 76. ILLUSTRATION OF THE INGRESS-DIRECTION ADD PORT SIGNALS ................................................................................ 332
TABLE 300 TIMING INFORMATION FOR THE INGRESS-DIRECTION ADD PORT SIGNALS ..................................................................... 332
8.12.2 INGRESS DIRECTION - DROP PORT TIMING........................................................................................................ 333
VIII
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
FIGURE 77. ILLUSTRATION OF THE INGRESS-DIRECTION DROP PORT SIGNALS ............................................................................... 333
TABLE 301 TIMING INFORMATION FOR THE INGRESS-DIRECTION DROP PORT SIGNALS ................................................................... 333
8.13 EGRESS DIRECTION - ADD/DROP PORT TIMING ..................................................................................... 334
8.13.1 EGRESS DIRECTION - ADD PORT TIMING............................................................................................................ 334
FIGURE 78. ILLUSTRATION OF THE EGRESS-DIRECTION ADD PORT SIGNALS ................................................................................. 334
TABLE 302 TIMING INFORMATION FOR THE EGRESS-DIRECTION ADD PORT SIGNALS ...................................................................... 334
8.13.2 EGRESS DIRECTION - DROP PORT TIMING ......................................................................................................... 335
FIGURE 79. ILLUSTRATION OF THE EGRESS-DIRECTION DROP PORT SIGNALS ................................................................................ 335
TABLE 303 TIMING INFORMATION FOR THE EGRESS-DIRECTION DROP PORT SIGNALS ................................................................... 335
9.0 ELECTRICAL CHARACTERISTICS .................................................................................................... 336
TABLE 304 : ABSOLUTE MAXIMUM RATINGS .................................................................................................................................. 336
TABLE 305 : DC DIGITAL INPUT AND OUTPUT ELECTRICAL CHARACTERISTICS ............................................................................... 337
TABLE 306: E1 RECEIVER ELECTRICAL CHARACTERISTICS ............................................................................................................ 338
TABLE 307: E1 TRANSMITTER ELECTRICAL CHARACTERISTICS ...................................................................................................... 339
10.0 BACKGROUND AND PROTOCOLS ................................................................................................. 340
10.1 SYNCHRONOUS DIGTIAL HIERARCHY (SDH) STANDARD ..................................................................... 340
10.2 BASIC FRAME STRUCTURE........................................................................................................................ 342
FIGURE 80. STM-N FRAME STRUCTURE ....................................................................................................................................... 342
11.0 REFERENCE DOCUMENTATION ..................................................................................................... 344
11.1 TERMINOLOGY ............................................................................................................................................. 344
11.1.1 NOMENCLATURE .................................................................................................................................................... 344
11.1.2 SIGNAL NAME PREFIXES AND SUFFIXES............................................................................................................ 344
11.1.3 ABBREVIATIONS ..................................................................................................................................................... 344
ORDERING INFORMATION .................................................................................................................. 347
PACKAGE DIMENSIONS 388 PBGA .............................................................................................................. 347
REVISION HISTORY .................................................................................................................................... 348
IX
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
1.0 PIN DESCRIPTIONS
1.1
MICROPROCESSOR INTERFACE PINS
388 BALL
568 BALL
PIN NAME
TYPE
DESCRIPTION
J26
K25
M23
K26
L25
M26
N25
P26
P24
R25
R24
T25
R23
U25
V25
U24
Y26
U23
L30
M29
M30
N28
N29
P29
R30
R27
R28
T29
T27
U29
U28
V29
W30
W29
V27
AA30
A17
A16
A15
A14
A13
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0
I
Address Input Pins
These address input pins are used for the microprocessor interface
to the XRT86SH221. For timing information, please refer to the timing diagrams in the Electrical Specifications section of this
datasheet.
L24
L26
N23
N26
R26
U26
V26
W26
N27
P26
P27
R29
T30
T26
U27
U26
D7
D6
D5
D4
D3
D2
D1
D0
I/O
Bi-Directional Data Bus Pins
These bi-directional data bus pins are used for the microprocessor
interface to the XRT86SH221. For timing information, please refer
to the timing diagrams in the Electrical Specifications section of this
datasheet.
T24
V30
ALE / AS
I
Address Latch Enable / Address Strobe
The function of this input pin depends on the microprocessor interface mode. See the microprocessor section for timing diagrams.
T26
U30
CS
I
Chip Select Input
M24
N30
INT
O
Interrupt Request Output
This active-low output signal will be asserted any time the
XRT86SH221 is requesting interrupt service from the microprocessor.
NOTE: This output pin is open-drain and requires a 10kΩ pull-up
resistor.
T23
V28
RD / DS / WE
I
Read Strobe / Data Strobe
The function of this input pin depends on the microprocessor interface mode. See the microprocessor section for timing diagrams.
W25
Y30
WR / R/W
I
Write Strobe / Read-Write Operation Identifier
The function of this input pin depends on the microprocessor interface mode. See the microprocessor section for timing diagrams.
4
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
1.1
REV. 1.0.1
MICROPROCESSOR INTERFACE PINS
388 BALL
568 BALL
PIN NAME
TYPE
DESCRIPTION
P25
R26
RDY / Dtack /
TA
O
Ready or DTACK Output
The function of this output pin depends on the microprocessor
interface mode. See the microprocessor section for timing diagrams.
P2
P1
Reset
I
Hardware Reset
It is recommended to initiate a HW reset upon power up before
configuring the device. This pin must be pulled "Low" for a minimum of 10µS to activate the reset circuitry. During a HW reset, all
outputs will be tri-stated and all on-chip registers will be reset to
their default values.Note: This pin has an internal 10kΩ pull-up
resistor.
P23
T28
PCLK
I
Microprocessor Interface Clock Input
This input clock signal is only used for the synchronous microprocessor interface modes. This pin is ignored in the asynchronous
microprocessor interface mode.Note: The input frequency range of
PCLK is 66MHz.
AC3
AB3
AA4
AF3
AG2
AH1
PTYPE2
PTYPE1
PTYPE0
I
Microprocessor Type Select Inputs
These input pins are used to select the microprocessor mode
according to the following table:
PTYPE[2:0]
Microprocessor Interface Mode
000
Intel Asynchronous
001
Motorola Asynchronous
101
Power PC 403
111
MPC86x
N24
P30
DBEN
I
Data Bus Enable
This active-low input pin is used to enable the bi-directional data
bus. To disable the data bus, this pin must be pulled "High". For
normal operation, this pin should be pulled "Low".
R3
P4
T5
T3
EXT_INT_1
EXT_INT_0
I
External Interrupt Input [1:0]
These pins can be used to force an interrupt request to the microprocessor by pulling either of these two pins "High". The interrupt
will be generated on the INT output pin.
NOTE: If not used, these pins should be pulled "Low".
M25
P28
BLAST
I
Reserved
This pin can be left floating or tied to ground.
5
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
1.2
388B
ALL
BOUNDARY SCAN AND OTHER TEST PINS
568BALL
PIN NAME
TYPE
DESCRIPTION
JTAG Test Pins
D2
F4
TCK
I
Test Clock Input
This pin is used for the boundary scan clock input. For normal
operation, this pin should be pulled "Low".
D3
H6
TDI
I
Test Data Input
This pin is used for the boundary scan input data signal. For normal
operation, this pin should be pulled "High".
NOTE: Internally Pulled "High" with a 50kΩ pull-up resistor.
E4
E4
TDO
O
Test Data Output
This pin is used for the boundary scan output data signal.
C2
C2
TMS
I
Test Mode Select
This pin is used for the boundary scan test mode select input signal. For normal operation, this pin should be pulled "High".
NOTE: Internally Pulled "High" with a 50kΩ pull-up resistor.
F4
G5
TRST
I
Test Mode Reset
This pin is used for the boundary scan reset input signal. For normal operation, this pin should be pulled "High".
NOTE: Internally Pulled "High" with a 50kΩ pull-up resistor.
Analog Continuity and Test Pins
P3
R4
TESTMODE
I
For Factory Use Only
For normal operation, this pin must be pulled "Low".
M3
L1
SCAN_MODE
I
For Factory Use Only
For normal operation, this pin must be pulled "Low".
AE2
AD5
SCAN_ENB
I
For Factory Use Only
For normal operation, this pin must be pulled "Low".
B15
A15
C15
E15
ATP_RING1
ATP_TIP1
I/O
Analog Test Point - TIP/RING 1
These pins along with the TMS and TCK boundary scan pins are
used to perform continuity checks between the TTIP/TRING and
RTIP/RRING pins associated with E1 channels 0 through 10.
NOTE: If not used, these pins should be left floating.
AF14
AE14
AF15
AJ14
ATP_RING2
ATP_TIP2
I/O
Analog Test Point - TIP/RING 2
These pins along with the TMS and TCK boundary scan pins are
used to perform continuity checks between the TTIP/TRING and
RTIP/RRING pins associated with E1 channels 11 through 20.
NOTE: If not used, these pins should be left floating.
C14
AD14
D15
AH14
ANALOG1
ANALOG2
O
For Factory Use Only
These pins should be left floating
A13
AC14
A14
AG14
SENSE1
SENSE2
O
For Factory Use Only
These pins should be left floating
6
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
1.3
REV. 1.0.1
GENERAL PURPOSE INPUT AND OUTPUT PINS
388 BALL
568 BALL
PIN NAME
TYPE
DESCRIPTION
H5
D2
G4
C1
AC5
AD4
AE3
AF2
GPIO7
GPIO6
GPIO5
GPIO4
GPIO3
GPIO2
GPIO1
GPIO0
I/O
General Purpose I/O
Each of these pins can be configured to function as either a general
purpose input or output pin by programming the GPIO registers outlined in the register map. One register is used to set the direction of
each pin, while the other register is used to Read/Write the value of
each pin dependent on its direction.
GPIO Pins
F3
E2
C1
H4
AD2
AC2
AE1
Y4
1.4
NOTE: If not used, these pins should be left floating.
TIMING AND CLOCK SIGNALS
388 BALL
568 BALL
PIN NAME
TYPE
DESCRIPTION
Timing and Clock Pins
G4
E3
MCLK
I
Master Clock PLL Reference Input Clock
This input functions as the reference input pin to the PLL master
clock and can accept any of the following signals by programming the appropriate internal register.
2.048 / 4.096 / 8.192 / 16.384 MHz.
A1
F5
EXT_OSC_ENB
I
External Oscillator Enable
This pin must be pulled "Low".
R2
R1
EXT_OSC
I
External Oscillator
This pin must be pulled "Low".
7
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
1.4
TIMING AND CLOCK SIGNALS
388 BALL
568 BALL
PIN NAME
TYPE
DESCRIPTION
R1
R3
TX51_19MHZ
I
Transmit STM-0/STM-1 Timing Reference Input
The function of this pin depends upon which mode the
XRT86SH221 has been configured to operate in.
SDH Over Serial Interface (STM-0 Only)
In this case, the XRT86SH221 will be configured to transmit data
at a rate of 51.84MHz on the system side serial interface. Provide a 51.84MHz clock signal to this pin. The Transmit STM-0
POH and SOH Processor blocks will use this clock signal as its
timing reference.
SDH Over Telecom Bus Interface
In this case, the XRT86SH221 will be configured to output either
an STM-0 or STM-1 signal via the Transmit STM-0/STM-1 Telecom Bus Interface. Provide a 19.44MHz clock signal to this pin
for STM-1 or a 6.48MHz clock for STM-0 applications. The
Transmit STM-0/STM-1 POH and SOH Processor blocks will use
this clock signal as its timing reference.
N4
P5
TxSBFP_IN_OUT
I/O
Transmit System Bus Frame Pulse Input / Output
The direction of this frame pulse is determined by whether the
XRT86SH221 is the Master of Slave device in STM-1 shared
Telecom Bus applications whereby three Voyager-Lite devices
are connected together.
If the XRT86SH221 (along with two other XRT86SH221
devices) is configured to exchange STM-1 data over a common Telecom Bus, and this particular device is the Master
Device - TxSBFP_OUT:
The Master XRT86SH221 will pulse this output pin "High" when it
outputs the very first A1 byte (of a given outbound STM-1 frame)
via the Transmit STM-1 Telecom Bus Interface. This pin will be
kept "Low" at all other times.
If the XRT86SH221 (along with two other XRT86SH221
devices) is configured to exchange STM-1 data over a common Telecom Bus, and this particular device is the Slave
Device - TxSBFP_IN:
The Transmit STM-1 SOH Processor Block (within a given slave
device) can be configured to initiate its generation of a new outbound STM-1 frame based upon an externally supplied 8kHz
clock signal to this input pin. The Transmit STM-1 Telecom Bus
Interface will begin transmitting the very first byte of a given
STM-1 frame, upon sensing a rising edge of the 8kHz signal on
this pin.
8
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
1.5
REV. 1.0.1
LOW SPEED LINE INTERFACE SIGNALS
388 BALL
568 BALL
PIN NAME
TYPE
DESCRIPTION
E1 Receive Line Interface Signals
AB23
AC21
AE21
AC17
AE17
AE11
AF8
AC9
AC7
AF1
B2
C6
A5
C10
A11
A18
C18
D19
C22
D24
E25
AG25
AJ26
AG22
AH19
AK18
AH12
AK6
AJ5
AK2
AE5
A1
A2
A5
D10
D12
E17
E18
C22
E23
F23
E27
RTIP20
RTIP19
RTIP18
RTIP17
RTIP16
RTIP15
RTIP14
RTIP13
RTIP12
RTIP11
RTIP10
RTIP9
RTIP8
RTIP7
RTIP6
RTIP5
RTIP4
RTIP3
RTIP2
RTIP1
RTIP0
I
Receive E1 Line Input - Positive Polarity Signal
RTIP and RRING are differential analog input pins that receive
standard E1 Return-to-Zero data, coupled through a 1:1 transformer. The transformer blocks the DC line bias and allows the
inputs to be level shifted to mid-power supply.
AC24
AD22
AC19
AD18
AF18
AF10
AE8
AD8
AF2
AD3
D4
D7
D9
A8
B11
B18
B20
A24
C23
E24
C26
AE23
AH25
AF21
AF18
AF17
AJ11
AJ7
AF9
AG6
AE4
B1
B3
B6
E11
A10
A20
C20
D21
C26
D26
D28
RRING20
RRING19
RRING18
RRING17
RRING16
RRING15
RRING14
RRING13
RRING12
RRING11
RRING10
RRING9
RRING8
RRING7
RRING6
RRING5
RRING4
RRING3
RRING2
RRING1
RRING0
I
Receive E1 Line Input - Negative Polarity Signal
RTIP and RRING are differential analog input pins that receive
standard E1 Return-to-Zero data, coupled through a 1:1 transformer. The transformer blocks the DC line bias and allows the
inputs to be level shifted to mid-power supply.
9
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
1.5
LOW SPEED LINE INTERFACE SIGNALS
388 BALL
568 BALL
PIN NAME
TYPE
DESCRIPTION
AE26
Y23
AF27
AG28
RCLK_REC1
RCLK_REC0
O
Recovered Line Clock Output
Each of these pins can be internally routed to one of the 21 E1
Recovered Line Clocks to be used as an output clock reference,
selected by programming the appropriate registers. By default (or if
the recovered line clock is not selected), these output pins are tristated.
E1 Transmit Line Interface Signals
10
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
1.5
REV. 1.0.1
LOW SPEED LINE INTERFACE SIGNALS
388 BALL
568 BALL
PIN NAME
TYPE
DESCRIPTION
AE25
AC20
AC18
AD17
AE16
AE12
AF9
AD9
AC8
AC6
D6
B6
D10
B10
A12
A17
A19
C19
A25
C24
D25
AF23
AG23
AJ23
AK19
AK17
AF14
AJ8
AJ6
AJ4
AF4
E5
C5
C8
D11
A11
D17
B20
D20
C25
D25
C28
TTIP20
TTIP19
TTIP18
TTIP17
TTIP16
TTIP15
TTIP14
TTIP13
TTIP12
TTIP11
TTIP10
TTIP9
TTIP8
TTIP7
TTIP6
TTIP5
TTIP4
TTIP3
TTIP2
TTIP1
TTIP0
O
Transmit E1 Line Output - Posittive Polarity Signal
TTIP and TRING are differential analog output pins that transmit
standard E1 Return-to-Zero data. The amplitude of the output
pulse is half the nominal E1 standard and level shifted to VCC/2 to
allow for optimum pulse shaping capability. Therefore, it's necessary to couple these analog outputs to a 1:2 step-up transformer to
apply a gain of 2x. It is recommended to connect a 0.1µF capacitor
in series with each TTIP signal.
AD24
AE23
AF23
AE19
AC15
AD12
AC11
AF6
AE5
AD4
C4
A3
B7
B9
D13
C16
A20
C20
B24
B25
G23
AJ27
AF22
AK25
AJ19
AH17
AK11
AG10
AK4
AH5
AH2
C3
F8
E10
B9
C12
C18
B21
A24
D24
E24
E26
TRING20
TRING19
TRING18
TRING17
TRING16
TRING15
TRING14
TRING13
TRING12
TRING11
TRING10
TRING9
TRING8
TRING7
TRING6
TRING5
TRING4
TRING3
TRING2
TRING1
TRING0
O
Transmit E1 Line Output - Negative Polarity Signal
TTIP and TRING are differential analog output pins that transmit
standard E1 Return-to-Zero data. The amplitude of the output
pulse is half the nominal E1 standard and level shifted to VCC/2 to
allow for optimum pulse shaping capability. Therefore, it's necessary to couple these analog outputs to a 1:2 step-up transformer to
apply a gain of 2x.
11
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
1.6
HIGH SPEED SERIAL INTERFACE
388 BALL
568 BALL
PIN NAME
TYPE
DESCRIPTION
SDH Receive Serial Interface
T1
T1
RxSTM0CLK
I
Receive STM-0 Serial Input Clock
The high speed system bus can be configured to operate over a
standard parallel telecom bus or a serial interface. If the serial
interface is enabled, the XRT86SH221 samples data on the rising edge of this input clock signal.
T2
U1
RxSTM0DATA
I
Receive STM-0 Serial Input Data
Apply the serial input data to this pin, and it can be sampled on
either the rising edge or falling edge of the RxSTM0CLK input
pin.
U1
U2
RxSTM0FRAME
I
Receive STM-0 Serial Frame Pulse
This input pin should be connected to the Frame Pulse to indicate when the first bit of the current STM-0 frame occurs if connected to an external device, where this option is available.
R4
U5
RxSTM0LOS
I
Receive STM-0 Serial Loss of Signal
If the high speed serial interface is connected to an external LIU
(Line Interface Unit), then this input signal can be connected to
the LOS output pin from the LIU.
SDH Transmit Serial Interface
N2
P3
TxSTM0CLK
O
Transmit STM-0 Serial Output Clock
The high speed system bus can be configured to operate over a
standard parallel telecom bus or a serial interface. If the serial
interface is enabled, then the XRT86SH221 updates data on the
rising edge of this output clock signal. The source of this clock
can be a buffered clock derived from the recovered line clock in
loop timing mode, or buffered from the internal master clock in
local timing mode.
N1
R5
TxSTM0DATA
O
Transmit STM-0 Serial Output Data
The serial output data can be updated on either the rising edge
or falling edge of the TxSTM0CLK output pin.
P1
P2
TxSTM0FRAME
O
Transmit STM-0 Serial Frame Pulse
This output frame pulse is used to indicate when the first bit of
the current STM-0 frame is transmitted if connected to an external device, where this option is available.
12
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
1.7
REV. 1.0.1
HIGH SPEED TELECOM BUS INTERFACE
388 BALL
568 BALL
PIN NAME
TYPE
DESCRIPTION
SDH Receive Telecom Bus Interface
T3
V2
RxD_CLK
I
Receive STM-0/STM-1 Telecom Input Clock
The high speed system bus can be configured to operate over a
standard parallel telecom bus or a serial interface. If the Telecom
Bus is enabled, then all telecom bus signals are sampled on the
rising edge of this input clock. This clock should be 6.48MHz for
STM-0 or 19.44MHz for STM-1.
V2
V5
RxD_DP
I
Receive STM-0/STM-1 Telecom Data Polarity
This input pin can be configured to operate as the EVEN or ODD
parity value of either the Receive Telecom Data Bus RxD_D[7:0]
or the Payload Indicator RxD_PL and Frame Pulse
RxD_C1J1V1_FP.
NOTE: This pin should be pulled "Low" if the part is configured
for Re-Phase On.
U2
V3
RxD_PL
I
Receive STM-0/STM-1 Telecom Payload Indicator
This input pin is used to indicate when payload bytes within an
STM-0/STM-1 frame are being processed. This pin should be
pulled "High" for the entire duration of the payload bytes, and
pulled "Low" at all other times.
T4
W3
RxD_ALARM
I
Receive STM-0/STM-1 Telecom Alarm Status
This input pin should be pulled "High" corresponding to any
STM-0/VC-3 signal that is carrying either the AU-AIS or TU-AIS
indicator. At all other times, this pin should be pulled "Low". If this
pin is pulled "High", the XRT86SH221 will automatically declare
the AU-AIS or TU-AIS defect for that particular VC-3.
V1
Y1
RxD_C1J1V1_FP
I
Receive STM-0/STM-1 Telecom Frame Pulse
The XRT86SH221 can be configured for Re-Phase On or RePhase Off, meaning that frame synchronization can be externally
supplied to this input pin, or the XRT86SH221 can gain frame
synchronization from the incoming data.
Re-Phase Off
This pin is ignored and can be tied to ground or left floating.
Re-Phase On
This pin should be pulled "High" during the C1 byte, J1 byte, and
V1 byte. At all other times, this pin should be pulled "Low".
NOTE: When 3 XRT86SH221 chips share the telecom bus in a
Master/Slave mode, the C1 bytes must be aligned on all
three input pins. The J1 and/or V1 bytes do not have to
be aligned.
Y3
AC1
AB1
AA1
Y2
W2
W1
U3
AE1
AD1
AA4
AC1
AB2
AB1
AA2
Y3
RxD_D7
RxD_D6
RxD_D5
RxD_D4
RxD_D3
RxD_D2
RxD_D1
RxD_D0
I
Receive STM-0/STM-1 Telecom Input Data Bus
These input pins are sampled on the rising edge of the Receive
Telecom Input Clock RxD_CLK. The MSB of the data bus is bit 7,
and the LSB is bit 0.
13
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
1.7
HIGH SPEED TELECOM BUS INTERFACE
388 BALL
568 BALL
PIN NAME
TYPE
DESCRIPTION
SDH Transmit Telecom Bus Interface
N3
M1
TxD_CLK
O
Transmit STM-0/STM-1 Telecom Output Clock
The high speed system bus can be configured to operate over a
standard parallel telecom bus or a serial interface. If the Telecom
Bus is enabled, then all telecom bus signals are updated on the
falling edge of this output clock. The source of this clock can be a
buffered clock derived from the recovered line clock in loop timing mode, or buffered from the internal master clock in local timing mode. This clock should be 6.48MHz for STM-0 or 19.44MHz
for STM-1.
L2
L2
TxD_DP
O
Transmit STM-0/STM-1 Telecom Data Polarity
This output pin can be configured to operate as the EVEN or
ODD parity value of either the Transmit Telecom Data Bus
TxD_D[7:0] or the Payload Indicator TxD_PL and Frame Pulse
TxD_C1J1V1_FP.
M1
N3
TxD_PL
O
Transmit STM-0/STM-1 Telecom Payload Indicator
This output pin is used to indicate when payload bytes within an
STM-0/STM-1 frame are being transmitted. This pin will be
pulled "High" for the entire duration of the payload bytes, and
pulled "Low" at all other times.
NOTE: This pin should have an external pull-down resistor of
330Ω
K1
K1
TxD_ALARM
O
Transmit STM-0/STM-1 Telecom Alarm Status
This output pin will be pulled "High" corresponding to any STM-0/
VC-3 signal that is carrying either the AU-AIS or TU-AIS indicator. At all other times, this pin will be pulled "Low".
M2
M2
TxD_C1J1V1_FP
O
Transmit STM-0/STM-1 Telecom Frame Pulse
The XRT86SH221 can be configured for Re-Phase On or RePhase Off, meaning that frame synchronization can be externally
provided to the system or act as a simple Frame Pulse.
Re-Phase Off
This pin is pulled "High" during the A1 byte. At all other times,
this pin is pulled "Low".
Re-Phase On
This pin is pulled "High" during the C1 byte, J1 byte, and V1 byte.
At all other times, this pin is pulled "Low".
NOTE: 1. When 3 XRT86SH221 chips share the telecom bus in a
Master/Slave mode, all three chips will output this signal.
NOTE: 2. This pin should have an external pull-down resistor of
330Ω.
H2
K3
L4
J2
J1
K2
L3
M4
G2
J3
H2
G1
J2
H1
J1
K2
TxD_D7
TxD_D6
TxD_D5
TxD_D4
TxD_D3
TxD_D2
TxD_D1
TxD_D0
O
Transmit STM-0/STM-1 Telecom Output Data Bus
These output pins are updated on the falling edge of the Transmit Telecom Output Clock TxD_CLK. The MSB of the data bus is
bit 7, and the LSB is bit 0.
14
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
1.8
REV. 1.0.1
HIGH SPEED SECTION AND PATH OVERHEAD BUS
388 BALL
568 BALL
PIN NAME
TYPE
DESCRIPTION
Receive Section and Path Overhead Extraction Bus
V3
AA3
RxOH
O
Receive SOH/POH Data Output Port
The extracted SOH/POH overhead bytes will be updated on this
output pin on the falling edge of RxOHCLK. Therefore, RxOH
should be sampled using the rising edge of RxOHCLK.
Y1
W5
RxOHCLK
O
Receive SOH/POH Overhead Clock Output
This output clock signal is used as the timing reference for the
Receive Overhead Extraction Bus. This clock will update all output extraction bus pins on its falling edge.
V4
Y5
RxOHFRAME
O
Receive SOH/POH Overhead Frame Boundary Indicator
The Receive SOH/POH Data Output Port will pulse this output
pin "High" for one period of RxOHCLK, coincident to whenever it
is extracting the very first bit of the STM-0/STM-1 frame in the
Section Overhead (A1) and the very first bit of the Path Overhead (J1). If RxPOH_IND is "Low" during this Frame Pulse, then
that bit is A1. If RxPOH_IND is "High" during this Frame Pulse,
then that bit is J1. This pin will be pulled "Low" at all other times.
U4
Y4
RxOHVALID
O
Receive SOH/POH Overhead Data Valid Indicator
This output pin will be pulled "High" when the extracted SOH and
POH bytes are ready to be sampled from the overhead bus. This
pin will be pulled "Low" at all other times. If RxPOH_IND is "Low"
while RxOHVALID is "High", then SOH is valid. If RxPOH_IND is
"High" while RxOHVALID is "High", then POH is valid. This pin
will be pulled "Low" at all other times.
W3
AB3
RxPOH_IND
O
Receive POH Indicator
The Receive Path Overhead Indicator will pull "High", coincident
to whenever it is extracting Path Overhead data via the RxOH
output pin. Conversely, this pin will pull "Low", coincident to
whenever it is extracting Section Overhead data via the RxOH
output pin. This pin will be updated on the falling edge of RxOHCLK.
Transmit Section and Path Overhead Insertion Bus
K4
E1
TxOHEN
O
Transmit SOH/POH Overhead Port Enable Output
The state of this output pin determines the time period when the
XRT86SH221 can accept SOH/POH overhead bytes. The Overhead Insertion Bus is active when this pin is pulled "High".
G2
F2
TxOH
I
Transmit SOH/POH Data Input Port
If the System Side Terminal Equipment intends to insert its own
value for a given overhead SOH or POH byte into the outbound
STM-0 or STM-1 data-stream, then the System Side Terminal
Equipment is expected to apply the overhead bytes to this input
pin while asserting the TxOHINS input pin. This input pin is sampled upon the rising edge of TxOHCLK.
G1
H3
TxOHCLK
O
Transmit SOH/POH Overhead Clock Output
This output clock signal is used as the timing reference for the
Transmit Overhead Insertion Bus. This clock will sample all input
insertion bus pins on its rising edge.
15
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
1.8
HIGH SPEED SECTION AND PATH OVERHEAD BUS
388 BALL
568 BALL
PIN NAME
TYPE
DESCRIPTION
J3
J4
TxOHFRAME
I/O
Transmit SOH/POH Overhead Frame Boundary Indicator
The Transmit SOH/POH Data Input Port will pulse this output pin
"High" for one period of TxOHCLK, coincident to whenever it is
processing the very first SOH byte of a given outbound STM-0/
STM-1 frame in the Section Overhead (A1) and the very first bit
of the Path Overhead (J1). If TxPOH_IND is "Low" during this
Frame Pulse, then that bit is A1. If TxPOH_IND is "High" during
this Frame Pulse, then that bit is J1. This pin will be pulled "Low"
at all other times.
H1
F1
TxOHINS
I
Transmit SOH/POH Overhead Insertion Input
If the System Side Terminal Equipment intends to insert its own
value for a given overhead SOH or POH byte into the outbound
STM-0 or STM-1 data-stream, then this input pin should be
pulled "High" coincident with the SOH or POH bytes. This input
pin is sampled upon the rising edge of TxOHCLK.
F1
K5
TxPOH_IND
I/O
Transmit POH Indicator
The Transmit SOH/POH Data Input Port will toggle and hold this
output pin "High", coincident to whenever it is ready to accept
POH data via the TxOH input pin. Conversely, this pin will hold
this pin "Low", coincident to whenever it is ready to accept SOH
data via the TxOH input pin. This pin will be updated on the falling edge of TxOHCLK as an output (or sampled on the rising
edge as an input).
1.9
HIGH SPEED TU POH OVERHEAD BUS
388 BALL
568 BALL
PIN NAME
TYPE
DESCRIPTION
Receive TU POH Extraction Bus
W4
AA5
RxTUPOH
O
Receive TU POH Data Output Port
This output pin will output the contents of the VC-4 POH bytes
within the incoming STM-1 data-stream. This output is updated
on the falling edge of RxTUPOHCLK.
AA2
AB4
RxTUPOHCLK
O
Receive TU POH Overhead Clock Output
If the XRT86SH221 along with two other devices has been configured to operate in the STM-1/TUG-3 Mode, this output clock
signal is used as the timing reference for the Receive VC-4 POH
Overhead Extraction Bus. This clock will update all output extraction bus pins on its falling edge.
AD1
AD2
RxTUPOHFRAME
O
Receive TU POH Data Output Port - Frame Boundary Output
The Receive TU POH Data Output Port will pulse this output pin
"High" for one period of RxTUPOHCLK, coincident to whenever
it is extracting the very first bit of the VC-4 POH. This pin will be
pulled "Low" at all other times.
AA3
AB5
RxTUPOHVALID
O
Receive TU POH Data Output Port - Overhead Indicator Output
This output pin will be pulled "High" when the extracted VC-4
POH bytes are ready to be sampled from the overhead bus. This
pin will be pulled "Low" at all other times.
16
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
1.9
REV. 1.0.1
HIGH SPEED TU POH OVERHEAD BUS
388 BALL
568 BALL
PIN NAME
TYPE
DESCRIPTION
Transmit TU POH Insertion Bus
J4
D1
TxTUPOHEN
O
Transmit TU POH Overhead Port Enable Output
The state of this output pin determines the time period when the
XRT86SH221 can accept VC-4 POH overhead bytes. The Overhead Insertion Bus is active when this pin is pulled "High".
F2
F3
TxTUPOH
I
Transmit TU POH Data Input Port
If the System Side Terminal Equipment intends to insert its own
value for a given VC-4 POH byte, then the System Side Terminal
Equipment is expected to apply the overhead bytes to this input
pin while asserting the TxTUPOHINS input pin. This input pin is
sampled upon the rising edge of TxTUPOHCLK.
H3
H4
TxTUPOHCLK
O
Transmit TU POH Overhead Clock Output
This output clock signal is used as the timing reference for the
Transmit Overhead Insertion Bus. This clock will sample all input
insertion bus pins on its rising edge.
E1
G3
TxTUPOHFRAME
I/O
Transmit TU POH Overhead Frame Boundary Indicator
The Transmit TU POH Data Input Port will pulse this output pin
"High" for one period of TxTUPOHCLK, coincident to whenever it
is processing the very first VC-4 POH byte. This pin will be pulled
"Low" at all other times.
D1
J5
TxTUPOHINS
I
Transmit TU POH Overhead Insertion Input
If the System Side Terminal Equipment intends to insert its own
value for a given overhead VC-4 POH byte, then this input pin
should be pulled "High" coincident with the TU POH bytes. This
input pin is sampled upon the rising edge of TxTUPOHCLK.
17
XRT86SH221
REV. 1.0.1
1.10
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
POWER AND GROUND PINS
388 BALL
568 BALL
PIN NAME
TYPE
DESCRIPTION
B1, AB2, AB25, M15, P15,
N15, A2, R15, M14, M13,
P14, P13, N14, N13, R14,
R13, M12, P12, N12, R12,
G3
J6, AD3, AB25, E25,
E20, P17, T17, R17, C4,
U17, P16, P15, T16,
T15, R16, R15, U16,
U15, P14, T14, R14,
U14, K6
1.8V Digital
-
1.8V Digital Power Supply
AC12, AF15, AE20, B22,
B14, A10, AF13, D14
AF12, AK13, AG19, B26,
B15, B10, AJ16, B17
1.8V Analog
-
1.8V Analog Power Supply
J23, P16, N16, L14, L13,
T14, T13, P11, N11
J25, T18, R18, N16,
AJ30, N15, V16, V15,
T13, R13
3.3V Digital
-
3.3V Digital Power Supply
AE4, AD7, AF7, AD11,
AD13, AD15, AE18, AF21,
AE22, AD23, F23, D22,
C21, A22, D16, A16, B13,
D12, B8, A4, B4, AD5,
AF3, AE7, AE9, AC13,
AF17, AF19, AD19, AF25,
AC23, B26, D23, B23,
A23, B19, D15, B12, A9,
C9, D8, C5
AG4, AK3, AK5, AG11,
AK12, AH16, AJ18,
AF20, AJ25, AG24, B29,
F22, E22, B22, D18,
A18, D13, A9, A7, A3,
F7, AG3, AF8, AH7,
AH9, AJ12, AJ17, AG18,
AK24, AE21, AK28, D27,
B28, A28, E19, A21,
A19, E13, C10, D9, D6,
D4
3.3V Analog
-
3.3V Analog Power Supply
G6, D3, AC6, AD6,
AD25, G25, P18, N18,
N17, V18, V17, U18,
P13, N14, N13, V14,
V13, U13, AF5, AG7,
AF10, AK7, AH13, AK16,
AH18, AG21, AH24,
AE22, F24, A29, F21,
C21, C19, B18, B12,
E12, A6, B4, D5, AJ1,
AE9, AG8, AF11, AG13,
AG17, AK20, AJ24,
AK27, AH26, F26, C27,
B27, B23, D19, B19,
B11, A8, B7, E7, B2,
AE10, AJ13, AH23, A22,
A15, C7, AF16, C17
GND
-
Ground
Power Supply
Ground Pins
C3, E3, AB4, AC4, H23,
M16, L16, L15, T16, T15,
R16, M11, L12, L11, T12,
T11, R11, AE3, AE6,
AC10, AE10, AF12, AF16,
AC16, AF22, AD21, AC22,
C25, A26, D20, D18, C17,
B16, C13, C11, A7, C7, B3,
AC5, AD6, AF5, AD10,
AF11, AD16, AF20, AD20,
AE24, AF26, F24, E23,
D21, B21, D17, B17, C12,
D11, A6, B5, D5, AF4,
AE15, AF24, A21, A14,
C8, AE13, C15
18
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
1.10
REV. 1.0.1
POWER AND GROUND PINS
388 BALL
568 BALL
PIN NAME
TYPE
E2, L5, K4, M5, L4, K3,
L3, N5, M4, M3, P4, N2,
N1, R2, T4, T2, U3, U4,
V1, W1, V4, W2, Y2, W4,
AA1, AC2, AC3, AF1,
AE2, AA6, AC4, AG1,
AB6, AF24, AK29, AJ28,
AH27, AG26, AE24,
AG27, AH28, AJ29,
AE26, AK30, AC25,
AE27, AJ30, AF28,
AC26, AG29, AD27,
AH30, AE28, AF29,
AC27, AG30, AD28,
AA26, AE29, AB27,
AF30, AC28, AD29, Y26,
AB28, AC29, AD30,
W26, Y27, AA28, AB29,
AC30, AB30, Y28, V26,
W27, AA29, Y29, W28,
N26, M28, L29, M27,
K30, L28, K29, J30, K28,
J29, H30, K27, L26, J28,
H29, G30, F30, H28,
J27, K26, G29, E30,
F29, G28, K25, J26,
E29, F28, G27, H26,
C30, D29, E28, F27,
H25, G26, B30, C29,
A25, N4, AF25, AF26,
AD26, AH29, AA25,
AB26, AE30, AA27,
M26, L27, H27, D30,
AH3, AE7, AJ2, AF6,
AK1, AG5, AH4, AE8,
AF7, AJ3, AH6, AH10,
AJ9, AK8, AK9, AJ10,
AG12, AF13, AH11,
AK10, AG16, AK15,
AJ15, AH15, AG15,
AK14, AJ20, AK21,
AH20, AJ21, AK22,
AF19, AG20, AH21,
AJ22, AK26, B14, C14,
D14, A13, E14, B13,
C13, A12, C9, D23, A27,
C24, E21, B25, D22,
A26, C23, B24, A23,
A17, D16, C16, B16,
A16, C11, F10, E9, D8,
A4, B5, C6, D7, F9, E8,
E6, E16, A30
NC
-
DESCRIPTION
No Connect Pins
AB24, AA23, AD25, AC25,
AA24, AD26, W23, AA25,
Y24, AC26, W24, V23,
AB26, AA26, Y25, V24,
J25, L23, K24, H26, H25,
G26, K23, J24, G25, F26,
E26, H24, D26, G24, F25,
L1
19
No Connect
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
2.0 APPLICATIONS AND PHYSICAL INTERFACE GENERAL OVERVIEW
The XRT86SH221 (Voyager-Lite) is a highly integrated, monolithic device designed for cost-sensitive SDH to
PDH mapper applications. Voyager-Lite supports all the framing, mapping and grooming functions required for
E1 aggregation to STM-1 via standard VC-12 to AU-3 and AU-4/TUG-3 mapping protocols. The device
generates and terminates all SDH Regenerator Section, Multiplexer Section and Path Overhead including the
low-order Virtual Container (VC) Path Overhead. E1 framing is transparent; therefore, the device neither
generates nor terminates the E1 frame.
Voyager-Lite includes a standard Telecom Bus interface to an SDH (STM-0/STM-1) Framer /Mapper with SDHto-PDH Desynchronizer, VC-12/TU-12 Mapper, VC-12 Cross-Connect and a 21-channel E1 Short Haul LIU with
integrated egress frame synchronizer for E1 bit-retiming. Voyager-Lite also provides alarm and performance
monitoring for all STM-1 and VC-12 overhead in compliance with ITU-T G.783 standards. Section and Path
overhead may be inserted/extracted via serial interfaces provided in transmit and receive directions.
The 21-channel E1 Short Haul LIU provides line termination and generation in compliance with G.703
standards, supporting E1 (2.048Mbps) 75Ω and 120Ω applications. The LIU receiver includes adaptive
equalizer, clock and data recovery, and HDB3 decoding with performance monitoring of Loss of Signal, Line
Code Violations and Excessive Zeros. The LIU transmitter includes HDB3 encoder, transmit pulse shaping and
line driver. The LIU also provides a half-duplex jitter attenuator which may be applied in either the transmit or
receive data path.
E1 spans are mapped to VC-12/TU-12 via the Virtual Container (VC) and Tributary Unit (TU) mapper. VC-12
grooming support provided for both transmit and receive directions on a per E1 basis via the integrated, fullduplex 21x21 VC-12 Cross-Connect. The SDH framer/mapper supports generation and termination of STM-1
Section and Path overhead and also performs SDH to PDH desynchronization.
A single Voyager-Lite performs mapping of 21 asynchronous E1 spans to either VC-12/TU-12/TUG-2/VC-3/AU3/STM-0 or VC-12/TU-12/TUG-2/TUG-3/STM-0. VC mapping to STM-1 requires (3) Voyager-Lite devices with
one acting as "master" framer and two acting as "slave" framers. In this configuration, Voyager-Lite performs all
the necessary framing, pointer processing and mapping functions required for mapping of 63xE1 spans to either
VC-12/TU-12/TUG-2/VC-3/AU-3/STM-1 or VC-12/TU-12/TUG-2/TUG-3/VC-4/AU-4/STM-1.
FIGURE 2. APPLICATION DIAGRAM
Shared Transmit Direction
Byte-Wide Bus, Clocked at
19.44MHz
XRT86SH221
21 Channel
VC Mapper IC
63 Channels of
E1 Line Signals
XRT91L30
STM-1
Transceiver IC
XRT86SH221
21 Channel
VC Mapper IC
STM-1
Data via LVPECL
XRT86SH221
21 Channel
VC Mapper IC
Shared Received Direction
Byte-Wide Bus, Clocked at
19.44MHz
20
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
2.1
REV. 1.0.1
Physical Interface
Voyager-Lite consists of several physical interfaces supporting the E1 Line Interface, STM-0/STM-1 Line
Interface, SDH SOH/POH and TU-POH Overhead Insertion and Extraction Interfaces, Timing and
Synchronization Interfaces, Microprocessor Interface and JTAG/Testability Interfaces. The diagram shown in
Figure 3 illustrates organization and applied nomenclature of these interfaces.
FIGURE 3. SIMPLIFIED BLOCK DIAGRAM OF THE PHYSICAL INTERFACE
SDH
SOH/
POH
Ext
VC-4
POH
Ext
8kHz 19.44MHz
TTIP[20:0]
TRING[20:0]
Receive Telecom
Bus
Transmit Telecom
Bus
Physical
Interface
Serial Interface
STM-0
RTIP[20:0]
RRING[20:0]
RCLK[1:0]
Ref
Clock
Test
SDH
SOH/
POH
Ins
21
VC-4 Microprocessor
POH
Ins
XRT86SH221
REV. 1.0.1
2.2
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
Telecom Bus Interface
Voyager-Lite applications typically require transport of STM-1 signals over optical networks. Therefore,
Voyager-Lite provides a standard Telecom Bus which supports direct connection to STM-1 optical transceivers
such as the XRT91L30, STM-1 Transceiver (CDR+SERDES). The signaling protocol defined for the VoyagerLite Telecom Bus supports the multiplexing of STM-0 data streams required to create an aggregate STM-1
signal. However, the Telecom Bus also provides direct output of a single STM-0 data stream at 6.48MHz to
support STM-0 mapping applications.
FIGURE 4. SIMPLIFIED BLOCK DIAGRAM OF THE TELECOM BUS INTERFACE
RxA_D[7:0]
RxA_CK
RxA_PL
RxA_C1J1
RxA_DP
RxA_Alarm
Telecom
Interface
Bus
TxA_D[7:0]
TxA_CK
TxA_PL
TxA_C1J1
TxA_DP
TxA_Alarm
• The Transmit Telecom Bus Interface provides the ingress STM-0/STM-1 data stream output
• The Receive Telecom Bus Interface provides the egress STM-0/STM-1 data stream input
The Telecom Bus interface consists of the following input/output signal.
Transmit Telecom Bus Interface
•TxA_D[7:0] 8-bit parallel telecom data bus
•TxA_CK 19.44/6.48 MHz telecom bus clock
•TxA_PL Payload location indicator
•TxA_C1J1 C1/J1/V1 byte location indicator
•TxA_DP Telecom data bus parity indicator
•TxA_Alarm AU-AIS/TU-AIS alarm indicator
Receive Telecom Bus Interface
•RxA_D[7:0] 8-bit parallel telecom data bus
•RxA_CK 19.44/6.48 MHz telecom bus clock
•RxA_PL Payload location indicator
•RxA_C1J1 C1/J1/V1 byte location indicator
•RxA_DP Telecom data bus parity indicator
•RxA_Alarm AU-AIS/TU-AIS alarm indicator
22
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
2.3
REV. 1.0.1
STM-0 Serial Interface SDH Frame Synchronization and Timing Interface
In addition to the parallel telecom bus, the high speed interface has the option to transmit and receive data
through an STM-0 interface. STM-1 is NOT supported with the serial interface.
FIGURE 5. SIMPLIFIED BLOCK DIAGRAM OF THE SERIAL PORT INTERFACE
RxSTM0CLK
RxSTM0DATA
RxFRAME
RxLOS
Serial
Interface
Bus
TxSTM0CLK
TxSTM0DATA
TxFRAME
• The Transmit Serial Interface provides the ingress STM-0 data stream output
• The Receive Serial Interface provides the egress STM-0 data stream input
The Serial Interface consists of the following input/output signal.
Transmit Serial Interface
•TxSTM0CLK Transmit serial interface clock
•TxSTM0DATA Transmit serial interface data
•TxSTM0FRAME Transmit serial interface frame pulse
Receive Serial Interface
•RxSTM0CLK Receive serial interface clock
•RxSTM0DATA Receive serial interface data
•RxSTM0FRAME Receive serial interface frame pulse
•RxSTM0LOS Receive serial interface loss of signal
23
XRT86SH221
REV. 1.0.1
2.4
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
SDH Frame Synchronization and Timing Interface
SDH Section layer processing at the STM-1 level is managed by a combination of overhead processing
performed in the "master" framer as well as through synchronization of the SDH framing engines within the
"master" and "slave" framers. The "master" device supports insertion and monitoring of B1 BIP-8 overhead and
also distributes an 8kHz frame sync to the "slave" devices. The "slave" devices source this frame sync as the
reference for all SDH framer/mapper blocks. In particular, the SDH framing, scrambling and descrambling
blocks rely upon this frame sync to ensure the "master" and "slave" devices remain synchronized at all times.
The XRT86SH221 requires a 19.44MHz input clock reference for timing of the Telecom Bus, SDH Framers,
SDH Overhead processors, VC-12 Mapper and VC-12 Cross-Connects for STM-1 applications. The same
19.44MHz reference should be applied to all three Voyager-Lite device when operating in STM-1 mapper mode.
In the case of STM-0 applications, the device will accept a 6.48MHz reference input.
FIGURE 6. SIMPLIFIED BLOCK DIAGRAM OF THE SDH FRAME SYNCHRONIZATION
Tx51_19MHz
SDH
Frame Sync
TxSBFP_IN_OUT
The SDH Frame Synchronization and Timing Interface consists of the following signals.
•Tx51_19MHz Transmit STM-1/STM-0 Timing Reference Input
•TxSBFP_IN_OUT System Frame Pulse (Frame Synchronization Signal)
24
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
2.5
REV. 1.0.1
SDH Overhead Add-Drop Interfaces
SDH Overhead Add-Drop Interfaces provide access to the SDH Regenerator Section, Multiplexer Section and
Path Overhead. Please note there is no external interface providing access to the VC-12 Low-Order Path
Overhead. These interfaces allow flexible insertion and extraction of overhead and alarm data, thereby enabling
proprietary processing of the SDH frame.
FIGURE 7. SIMPLIFIED BLOCK DIAGRAM OF THE SDH OVERHEAD ADD-DROP INTERFACE
TxOHCLK
TxOH
TxOHEnable
TxOHFrame
TxOHIns
TxPOHInd
TxTUPOHClk
TxTUPOH
TxTUPOHEnable
TxTUPOHFrame
TxTUPOHIns
SDH Overhead
Add / Drop
Interface
RxOHCLK
RxOH
RxOHFrame
RxOHValid
RxPOHInd
RxTUPOHClk
RxTUPOH
RxTUPOHFrame
RxTUPOHValid
• The Transmit SDH SOH/POH Overhead Interface allows insertion of Regenerator Section, Multiplexer
Section and Path overhead data within the transmit STM-1/STM-0 data stream.
• The Transmit TU POH Overhead Interface allows insertion of Low-Order Path overhead data within the
transmit TU-12/VC-12 data stream.
• The Receive SDH SOH/POH Overhead Interface allows extraction of Regenerator Section, Multiplexer
Section and Path overhead data from within the receive STM-1/STM-0 data stream.
• The Receive TU POH Overhead Interface allows extraction of Low-Order Path overhead data from within the
receive TU-12/VC-12 data stream.
The SDH Overhead Insertion/Extraction Interfaces consist of the following signals.
Transmit SDH SOH/POH Insertion Bus (TxOH)
•TxOHCLK Transmit overhead clock
•TxOH Transmit overhead data
•TxOHEnable Transmit overhead bus enable
•TxOHFrame Transmit overhead frame boundary indicator
•TxOHIns Transmit overhead Insertion Control
•TxPOHInd Transmit overhead SOH/POH Indicator
25
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
Transmit TU POH Insertion Bus (TxTUPOH)
•TxTUPOHClk TxTUPOH clock
•TxTUPOH TxTUPOH data
•TxTUPOHEnable TxTUPOH bus enable
•TxTUPOHFrame TxTUPOH frame boundary indicator
•TxTUPOHIns TxTUPOH insertion control
Receive SDH SOH/POH Overhead Extraction Bus (RxOH)
•RxOHClk Receive overhead clock
•RxOH Receive overhead data
•RxOHFrame Receive frame boundary indicator
•RxOHValid Receive valid indicator
•RxPOHInd Receive overhead SOH/POH indictor
Receive TU POH Extraction Bus (RxTUPOH)
•RxTUPOHClk RxTUPOH clock
•RxTUPOH RxTUPOH data
•RxTUPOHFrame RxTUPOH frame boundary indicator
•RxTUPOHValid RxTUPOH valid indicator
2.6
E1 Short Haul Line Interface
Voyager-Lite's E1 Short Haul LIU provides the physical interface for 75Ω Coax and 120Ω Twisted Pair
applications. With selectable 75Ω/120Ω internal termination and option for high impedance on both transmit and
receive LIU interfaces, the device supports 1:1 and 1+1 redundancy with hitless hot-swapping for Coax and
Twisted pair designs with a single Bill-of-Materials. The E1 transmit driver and receive equalizer are designed
specifically to meet G.703 E1 Short Haul transport requirements.
The E1 Short Haul Line Interfaces consist of the following signals.
Transmit Line Output Signals
•TTIP[0:20] E1 Transmit TIP data
•TRING[0:20] E1 Transmit RING data
Receive Line Input Signals
•RTIP[0:20] E1 Receive TIP data
•RRING[0:20] E1 Receive RING data
Note: TTIP/TRING and RTIP/RING pins are grouped in pairs such as TTIP0/TRING0.
26
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
2.7
REV. 1.0.1
E1 Timing Interface
Timing support within the 21-channel LIU includes sourcing of an external reference input clock and recovery
of the incoming receive E1 Line clock. This reference clock input frequency should be either 2.048MHz,
4.096MHz, 8.192MHz, or 16.386Mhz. The E1 LIU includes a Master Clock Synthesizer which accepts this input
clock reference and derives a 2.048MHz reference functions such as Clock and Data Recovery as well as timing
of the E1 transmit output data stream. The Clock and Data Recovery circuit recovers the incoming receive E1
Line clocks, which can be multiplexed to one of the two dedicated output pins, RCLK_REC[1:0]. Either the E1
LIU reference clock input or the recovered receive E1 Line clock may be used as the timing source for the
transmit E1 data stream bit-retiming function.
The E1 Timing Interface consists of the following signals.
•MCLK 2.048/4.096/8.192/16.384MHz reference clock input
•RCLK_REC[1:0] Recovered E1 (Receive) line clock outputs
2.8
Microprocessor Interface
Voyager-Lite provides a standard microprocessor interface supporting Intel, Motorola, PowerPC and Mips
synchronous/asynchronous PIO bus interfaces. The microprocessor interface provides an 18-bit address and
8-bit data bus interface for configuration, control, status monitoring with up to 66 MHz read/write access. The
device allows a noon-multiplexed address and data bus, supports reset-upon-read/write-clear for control of
status registers and provides programmable interrupt signal.
The Microprocessor Interface consists of the following signals.
•A[0:17] 18-bit Address Bus
•D[7:0] 8-bit Data Bus
•ALE/AS Address Latch Enable/Address Strobe
•CS Chip Select
•INT Interrupt
•RD/DS/WE Read Strobe/Data Strobe/Write Enable
•RDY'/DTACK/RDY/TA Ready, DTACK, or Transfer Acknowledge
•RESET Hardware Reset Input
•mPCLK Microprocessor Interface Clock Input
•WR'/RW Write Strobe/Read-Write Operation Identifier
•PTYPE[2:0] Microprocessor Interface Type Selector
•DBEN/OE Bi-Directional Data Bus Enable
27
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
3.0 FUNCTIONAL DESCRIPTION
The XRT86SH221 includes the following functional blocks
Ingress Data Path Functional Blocks
•E1 Receive LIU plus Clock and Data Recovery (RxE1LIU)
•Transmit TU POH Insertion Bus (TxTUPOH)
•VC-12/TU-12 Transmit Low-Order Mapper and Overhead Processor (TxLOPOHProc)
•VC-12 Transmit Cross-Connect (TxVC12XC)
•Transmit SDH SOH/POH Insertion Bus (TxTPOH)
•SDH Transmit Mapper and Path Overhead Processor (TxPOHProc)
•SDH Transmit Framer and Section Overhead Processor (TxSOHProc)
•Transmit Telecom Bus (TxTBus)
Egress Data Path Functional Blocks
•Receive Telecom Bus (RxTBus)
•SDH Receive Framer and Section Overhead Processor (RxSOHProc)
•SDH Receive Mapper and Path Overhead Processor (RxPOHProc)
•SDH Receive SOH/POH Overhead Extraction Bus (RxTPOH)
•VC-12/TU-12 Receive Low-Order Overhead Processor (RxLOPOHProc)
•Receive TU POH Extraction Bus (RxTUPOH)
•VC-12 Receive Cross-Connect (RxVC12XC)
•E1 Transmit Frame Synchronizer and Bit-Retimer (TxE1Frm)
•E1 Transmit LIU (TxE1LIU)
FIGURE 8. FUNCTIONAL BLOCK DIAGRAM
SDH SOH/POH
Extraction Bus
Egress
Rx VC-4 POH
Extraction Bus
Tx Frame Sync
+ Bit Re-timer
Receive
Telecom Bus
Receive
Framer + SOH
Receive
Mapper + POH
Receive
Cross Connect
Low Order
Mapper + OH
E1 Transmit
LIU
Transmit
Telecom Bus
Transmit
Framer + SOH
Transmit
Mapper + POH
Transmit
Cross Connect
Low Order
Mapper + OH
E1 Receive
LIU + CDR
SDH SOH/POH
Insertion Bus
Ingress
28
Tx VC-4 POH
Insertion Bus
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
3.1
REV. 1.0.1
Ingress Data Path Functional Blocks
The Ingress data path is defined as the flow of data from the E1 LIU Receiver input through the VC Mapper and
SDH Framer/Mapper to the Transmit Telecom Bus. The following sections describe the general functions and
detailed features for each block within the ingress data path.
FIGURE 9. SIMPLIFIED BLOCK DIAGRAM OF THE INGRESS DATA PATH
Transm it
Telecom Bus
Transm it
Fram er + SOH
SDH SOH/POH
Insertion Bus
3.2
Transmit
Mapper + POH
Transm it
Cross Connect
Ingress
Low Order
Mapper + OH
E1 Receive
LIU + CD R
Tx VC-4 POH
Insertion Bus
E1 Receive LIU (RxE1LIU)
•Loss of signal (RLOS) according to ITU-T G.775 and ETS300233
•Internal impedance matching on receive for 75Ω or 120Ω
•Power down on a per channel basis
•Selectable crystal-less digital jitter attenuators (JA) with 32-bit or 64-bit FIFO that can be selected in
the receive path
•Receive inputs may be set to high impedance for protection or redundancy applications on a per
channel basis
•R3 Technology for 1:1 or 1+1 redundancy without relays
•On chip digital clock and data recovery for high input jitter tolerance
•QRSS, TAOS, and Network Loop Codes for receive diagnostics
•Supports remote loop back modes
3.3
Transmit Low-Order (TU) Overhead Insertion Bus (TxTUPOH)
The SDH Transmit Low-Order (TU) Overhead Insertion Bus provides capability to receive the TU-12/VC-12
Low-Order Path Overhead (LOPOH) from an external processor. Data received by the TxTUPOH block may be
optionally inserted into the outgoing TU-12/VC-12 overhead during generation of the corresponding overhead
byte within the TxLOPOHProc block.
29
XRT86SH221
REV. 1.0.1
3.4
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
VC-12/TU-12 Transmit Low-Order Mapper and Overhead Processor (TxLOPOHProc)
The VC-12/TU-12 Transmit Low-Order Overhead Processor performs asynchronous mapping of E1 spans into
TU-12/VC-12 payloads. The TxLOPOHProc receives 21 independent E1 data streams from the Receive E1 LIU
block and maps these E1 spans to TU-12/VC-12. This block generates all the necessary Low-Order Path
Overhead including functions supported within the V5, J2, N2, and K4 bytes.
The primary features of the TxLOPOHProc block include the following functions
•Maps (21) independent E1 spans into TU-12/VC-12 payloads
•Generates the TU-12/VC-12 Low-Order Path Overhead
•Supports Low-Order Path Overhead Generation including V5, J2, N2, and K4
•V5 overhead generations support includes:
•BIP-2 Parity
•Low-Order Path Signal Label
•Low-Order Path Remote Error Indicator (LO-REI)
•Low-Order Path Remote Failure Indicator (LO-RFI)
•Low-Order Path Remote Defect Indicator (LO-RDI)
•J2 overhead generation supports Low-Order Access Path Identifier (LO-API) Messaging
•N2 overhead generation supports for Low-Order Tandem Connection Monitoring (LO-TCM)
•K4 overhead support for Low-Order APS Signaling
•Generates VC-12 stuff bits, overhead bits, justification opportunity bits, and justification control bits to
support rate adaptation between the incoming E1 signals and the SDH transmit timing reference
•Low-Order Path overhead may be optionally forced to reflect values configured within the software
register map or those received by the TxTUPOH Insertion Bus.
3.5
VC-12 Transmit Cross-Connect (TxVC12XC)
The VC-12 Transmit Cross-Connect operates in parallel with the VC-12/TU-12 Transmit Low-Order Path
Overhead Processor to support grooming of the ingress VC-12 paths. The TxVC12XC block provides a 21x21
VC-12 cross-connect which performs grooming of the VC-12 signals to support rearrangement, or reordering,
of the E1 traffic received from the E1 Line Interface before mapping within the STM-0/STM-1 payload.
3.6
Transmit SDH SOH/POH Insertion Bus (TxOH)
The SDH Transmit SOH/POH Overhead Insertion Bus receives section and path overhead data from an internal
processor for the purpose of insertion within the corresponding byte of the outgoing STM-0/STM-1 signal. This
block receives the section and path overhead from external pins and provides this data to the TxPOHProc and
TxSOHProc.
30
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
3.7
REV. 1.0.1
SDH Transmit Mapper and Path Overhead Processor (TxPOHProc)
The SDH Transmit Mapper and Path Overhead Processor receives TU-12/VC-12 overhead and payload data
stream from the TxLOPOHProc block and maps this data to either VC-3/AU-3 or TUG-3/VC-4/AU-4. The
TxPOHProc block performs all the mapping and overhead generation functions required at the High-Order Path
layer. The TxPOHProc provides fixed pointer generation with a pointer value of "522" and also supports B3
parity calculation/insertion and High-Order Path alarm generation. Data received by the TxOH block may be
optionally inserted into the outgoing path overhead during generation of the corresponding overhead byte within
the TxPOHProc block.
The primary features of the TxPOHProc block include the following functions
Payload Pointer Overhead
•Fixed payload pointer (H1, H2, H3) generation at SPE 522 (Receive Side is NOT Fixed)
•Supports NDF insertion within H1/H2 pointer
•Performs mapping of TU-12/VC-12 data streams into either VC-3/AU-3 or TUG-3/VC-4/AU-4
•Supports insertion of Alarm Indication Signal - Path (AU-AIS or AIS-P) based on alarm and defects
detected within the incoming egress STM-0/STM-1 signal
•Performs B3 parity calculation and Insertion
•C2 Signal Label Insertion
•Remote Defect Indication - Path (RDI-P) alarm insertion
•Remote Error Indication - Path (REI-P) alarm insertion
•Supports H4 Tributary Unit Multiframe Indicator insertion
•F3 User Channel overhead generation
•Supports K3 APS signaling
•Supports N1 High-Order Path Tandem Connection signaling
•Path overhead may be optionally forced to reflect values configured within the software register map
or those received by the TxOH Insertion Bus.
31
XRT86SH221
REV. 1.0.1
3.8
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
SDH Transmit Framer and Section Overhead Processor (TxSOHProc)
The SDH Transmit Framer and Section Overhead Processor receives the data from the TxPOHProc and
completes the multiplexing and overhead generation process to create the STM-0/STM-1 signal output to the
Transmit Telecom Bus. The TxSOHProc performs all the overhead processing required for Regenerator and
Multiplexer Section. The block includes supports or A1A2 frame generation, B1/B2 parity calculation, Section
Trace Messaging, DCC Messaging, and K1/K2 APS support. Data received by the TxOH block may be
optionally inserted into the outgoing section overhead during generation of the corresponding overhead byte
within the TxSOHProc block.
The primary features of the TxSOHProc block include the following functions compliant
Regeneration Section Overhead
•Frame Generation with the A1/A2 bytes with optional alignment to external 8 kHz frame sync
•Provides optional error mask for A1/A2 frame bit error generation
•Optional support for generation of LOS and SEF condition
•Scrambling
•Insertion of J0 Section Trace Message
•B1 Parity calculation and insertion with optional error mask
•E1 Orderwire and F1 User Channel overhead insertion
•Data communication channels (DCC messaging) insertion within D1-D3 and D4-D12
Multiplexer Section Overhead
•B2 Parity calculation and insertion with optional error mask
•K1/K2 signaling for APS, Alarm Indication and Remote Device Indication
•Alarm Indication Signal - Line (AIS-L) alarm generation
•Remote Defect Indication - Line (RDI-L) alarm generation
•Remote Error Indicator - Line (REI-L) alarm generation
•Alarm generation based on incoming upstream defects and optional software/hardware control
•Data communication channels (DCC messaging) insertion within D4-D12
•S1 processing for Synchronization Status Monitor
•M0/M1 generation for reporting of B2 bit/block error counts to upstream equipment
•E2 Orderwire overhead insertion
32
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
3.9
REV. 1.0.1
Transmit Telecom Bus (TxTBus)
The Transmit Telecom Bus provides the ingress data path STM-0/STM-1 physical interface for connection to an
STM-0/STM-1 transceiver module, downstream processor or backplane connection.
•STM-0 Mode: 8-bit parallel bus operating at 6.48MHz
•STM-1 Mode: 8-bit parallel bus operating at 19.44MHz
The Transmit Telecom Bus provides a physical interface between the optical transceiver module and VoyagerLite for the ingress data path. This bus operates at 19.44Mbps for STM-1 applications and 6.48Mpbs for STM0 applications using an 8-bit parallel data bus. The primary function of this block is transmission of data to the
optical transceiver, or other upstream processor. Data received from the SDH Transmit Framer and Section
Overhead Processor is sent out on the TxTBus. AU-3/TUG-3 timeslots for the aggregate STM-1 signals are
previously byte-aligned. Therefore, the TxTBus performs the STM-1 multiplex function in order to create the
aggregate STM-1 output signal.
For STM-1 applications, the TxTBus within the "slave" devices will send/assert on the correct AU-3/TUG-3 time
slot (time slot 1 or time slot 2) for the appropriate AU-3/TUG-3 channel. The TxTBus within the 'master" device
will send the AU-3/TUG-3 signal for time slot "0". The result is a time domain multiplexing of AU-3/TUG-3
channelized signals at the TxTBus which creates the aggregate STM-1 signal. The "master" device monitors
the TxTBus data during the "slave" device output timeslots for the purpose of B1 parity calculation.
The TxTBus supports the following features:
•Optional configuration for the TxTBus Clock polarity (positive/negative polarity)
•Optional Parity calculation for either the data bus only or the combination of the data bus, PL, C1J1
and Alarm signals.
•Optional configuration of the TxTBus Data Parity polarity (positive/negative polarity
•Optional configuration of the TxTBus C1J1 indicator for frame phase indication, payload phase
indication or both
33
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
3.10
Egress Data Path Functional Blocks
The Egress data path is defined as the flow of data from the Receive Telecom Bus input through the SDH
Framer/Mapper and VC Mapper to the E1 LIU Transmit output as shown below in Figure 10. The following
sections describe the general function and detailed features for each block within the egress data path.
FIGURE 10. SIMPLIFIED BLOCK DIAGRAM OF THE EGRESS DATA PATH
Egress
SDH SOH/POH
Extraction Bus
Receive
Telecom Bus
3.11
Receive
Fram er + SOH
Receive
Mapper + POH
Receive
Cross Connect
Rx VC-4 POH
Extraction Bus
Low Order
Mapper + OH
Tx Frame Sync
+ Bit Re-tim er
E1 Transm it
LIU
Receive Telecom Bus (RxTBus)
The Receive Telecom Bus provides the physical interface between the optical transceiver module and VoyagerLite for the egress data path. This bus operates at 19.44Mbps for STM-1 applications and 6.48Mpbs for STM0 applications using an 8-bit parallel data bus. The primary function of this block is reception of data from the
optical transceiver, or other upstream processor. Data received by the RxTBus is byte-aligned and passed to
the SDH Receive Framer and Section Overhead Processor.
For STM-1 applications, the RxTBus within the "slave" devices will sense only the correct AU-3/TUG-3 time slot
(time slot 1 or time slot 2) for the appropriate AU-3/TUG-3 channel. The RxTBus within the 'master" device will
sense the AU-3/TUG-3 signal for time slot "0". In addition, the RxTBus within the 'master" device will also sense
all AU-3/TUG-3 time slots for the aggregate STM-1 signal in order to support the appropriate monitoring of
section overhead functions such as B1 parity.
The RxTBus supports the following features:
•Optional configuration for the RxTBus Clock polarity (positive/negative polarity)
•Optional Parity monitoring for either the data bus only or the combination of the data bus, PL, C1J1 and
Alarm signals.
•Optional configuration of the RxTBus Data Parity polarity (positive/negative polarity
•Optional configuration of the RxTBus C1J1 indicator for frame phase detection, payload phase
detection or both
•Byte-Alignment of incoming STM-0/STM-1 data
•Automatic Insertion of downstream AIS-P based on incoming RxD_Alarm pin status
34
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
3.12
REV. 1.0.1
SDH Receive Framer and Section Overhead Processor (RxSOHProc)
The SDH Receive Framer and Section Overhead Processor receives the STM-0/STM-1 data stream from the
RxTBus and performs all the overhead processing required for Regenerator and Multiplexer Section
termination. The RxSOHProc supports performance, defect and alarm monitoring for all section overhead data.
The RxSOHProc allows user access to the incoming SOH data through microprocessor accessed registers or
via the Receive SDH SOH/POH Overhead Extraction Bus (RxOH).
The primary features of the RxSOHProc block include the following functions
Regeneration Section Overhead (aka - Section Overhead)
•Loss of Signal alarm detection
•Frame-Alignment of A1/A2 bytes
•Severely Errored Frame (SEF), or Out-of-Frame (OOF) alarm detection
•Loss of Frame (LOF) alarm detection
•Descrambling
•Detects J0 Section Trace Message and provides indication of
•J0 Section Trace Message: Mismatch
•J0 Section Trace Message: Invalid
•B1 Parity monitoring with Signal Degrade (SD) and Signal Fail (SF) alarm detection
•Includes programmable thresholds for declaration of SD and SF conditions
•Extracts E1 Orderwire and F1 User Channel overhead
•Extracts data communication channels (DCC messaging) from D1-D3 and D4-D12
Multiplexer Section Overhead (aka - Line Overhead)
•B2 Parity monitoring with Signal Degrade (SD) and Signal Fail (SF) alarm
•Includes programmable thresholds for declaration of SD and SF conditions
•K1/K2 processing for APS, Alarm Indication and Remote Device Indication
•Detects APS failure indicated within the K1/K2 bytes
•Alarm Indication Signal - Line (AIS-L) alarm detection
•Remote Defect Indication - Line (RDI-L) alarm detection
•Extracts data communication channels (DCC) messaging from D4-D12
•S1 processing for Synchronization Status Monitor
•Remote Error Indicator - Line (REI-L) alarm detection
•M0/M1 processing for collection of upstream B2 bit/block error counts
•Extracts E2 Orderwire overhead
Regenerator and Multiplexer Section Error Counters:
•Provides 32-bit saturating counter of OOF/SEF errors
•Provides 32-bit saturating counter of LOF errors
•Provides 32-bit saturating counter of LOS errors
•Provides 32-bit saturating counter of SD errors
•Provides 32-bit saturating counter of SF errors
•Provides 32-bit saturating counter of RDI-L errors
•Provides 32-bit saturating counter of REI-L errors
•Provides 32-bit saturating counter of BIP-8 B1 errors
•Provides 32-bit saturating counter of BIP-8 B2 errors
35
XRT86SH221
REV. 1.0.1
3.13
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
SDH Receive Mapper and Path Overhead Processor (RxPOHProc)
The SDH Receive Mapper and Path Overhead Processor receives the Path Overhead and payload data stream
from the RxSOHProc and performs all the overhead processing required for High-Order Path termination. The
RxSOHProc supports performance, defect and alarm monitoring for all High-Order Path overhead data. This
block also performs pointer interpretation and demapping of the STM-0/STM-1 payload. The RxPOHProc
terminates the AU-4/VC-3/TUG-3/TUG-2 or AU-3/VC-3/TUG-2 overhead, and passes the TU-12/VC-12
mapped data to the Receive TU-12/VC-12 Low-Order Overhead Processor. The block supports user access to
the incoming High-Order POH data through microprocessor accessed registers or via the Receive SDH SOH/
POH Overhead Extraction Bus (RxOH).
The primary features of the RxPOHProc block include the following functions compliant with ITU-T …
Payload Pointer Overhead
•Interprets payload pointer (H1, H2, H3), performs payload extraction and provides monitoring for
•Loss of Pointer (LOP) alarm detection
•New Data Flag (NDF)
•Alarm Indication Signal detection (AU-AISP)
•New Data Flag (NDF)
•Positive and Negative stuff events
•Alarm Indication Signal - Path (AU-AIS or AIS-P) alarm detection
High-Order Path Overhead
•Detects J1 Path Trace Message and provides indication of
•J1 Path Trace Message: Trace Identifier Mismatch - Path (TIM-P)
•J1 Path Trace Message: Invalid
•B3 Parity monitoring
•C2 Signal Label Monitoring within indication of Invalid, Unequipped, and Payload label mismatch status
•Remote Defect Indication - Path (RDI-P) alarm detection
•Remote Error Indication - Path (REI-P) alarm detection
•Supports H4 Tributary Unit Multiframe Indicator
•Extracts F3 User Channel overhead
•Supports K3 APS signaling
•Supports N1 High-Order Path Tandem Connection Signaling
Error Counters include the following:
•Provides 32-bit saturating counter of LOP
•Provides 32-bit saturating counter of AIS-P errors
•Provides 32-bit saturating counter of BIP-8 B3 errors
•Provides 32-bit saturating counter of REI-P errors
36
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
4.0 VOYAGER-LITE HARDWARE ARCHITECTURE AND ALGORITHMS
This section intends to provide a description of the overall Voyager-Lite architecture and functions of each
module inside the chip. The detailed information about each module will be addressed in the following
subsections. Figure 11 represents a simplified block diagram of this device.
FIGURE 11. VOYAGER-LITE ARCHITECTURE
STM-0(51)/Telecom(19)
Gapped 50MHz Clock Domain
E1 Clock Domain
E1 in ref clock/loop clock
S-2-P
Serial STM-0
or
STM-0/1
Telecom Bus
Sync
P-2-S
M
U
X
STN-0/1
Proc
VT
Mapper
21 M
M
U
X
U
X
CLK
Smooth
M
U
X
Sync
VT/TU
Telecom
Bus Init
E1
SH
LIU
S-2-P
P-2-S's
21 x Rx E1
Frame
Synchronizer
S-2-P
Sync
M
U
X
37
CLK
Smooth
M
U
X
E1
SH
LIU
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
4.1
MULTIPLEXING STRUCTURE
Figure 12 shows the relationship between various multiplexing elements that are defined and illustrates
possible multiplexing structures.
VC TYPE
VC BANDWIDTH
VC PAYLOAD
VC-12
2 240 kbit/s
2 176 kbit/s
FIGURE 12. MULTIPLEXING STRUCTURE
STM-1
AUG-1
AU-4
VC-4
TUG-3
AU-3
STM-0
VC-3
TUG-2
Pointer Processing
TU-12
Multiplexing
Aligning
Mapping
38
VC-12
C-12
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
4.2
REV. 1.0.1
FUNCTIONAL BLOCKS
The Voyager-Lite device is functionally, as well as architecturally, divided into the following blocks and
modules:
■
Transceiver Interface
■
STM-0/1 Transmit Framer (Tx Transport Overhead Processor)
■
STM-0/1 Transmit TOH (Transport OverHead) Interface
■
STM-0/1 Receive Framer (Rx Transport Overhead Processor)
■
STM-0/1 Receive Overhead Interface
■
STM-0/1 Transmit Pointer Processor (Tx Path Overhead processor)
■
STM-0/1 Transmit POH (Path OverHead) Interface
■
STM-0/1 Receive Pointer Processor (Rx Path Overhead Processor)
■
STM-0/1 Receive POH (Path Overhead) Interface
■
VT Mapper
■
21 Port Cross Connect
■
E1 Receive Framing Synchronizer
■
LIU Control Interface
■
LIU Modules
■
Microprocessor Interface
■
Interrupt Controller
■
Performance Monitor
The operations and functions of these blocks are discussed in detail in the following sections. This section
gives an overview of the operation of this device.
4.3
SDH TRANSMIT DATA FLOW
The SDH transmit blocks allow flexible insertion of transport and path overhead bytes through both hardware
and software. The blocks also perform primitive SDH tasks such as data scrambling, BIP-8 calculation and
insertion, and fixed stuff columns insertion. The blocks are used to transmit an SDH STM-1 stream with any
legal concatenation composition. The location of the SPE within the STM-1 frame is fixed with a pointer offset
of 522, which results in the J1 byte immediately trailing the last Z0 byte in the transport overhead.
Figure 13 shows the general structure of an SDH transmitter. As in the case of SDH receive blocks, the SDH
transmit blocks are reusable blocks that are configured to transmit any compositions of any STM-N stream (3c
and 1). The SDH transmit block consists of a transport section (txspoh_proc and txspoh_cont blocks) and 5
path sections.
The txspoh_cont path overhead block receives path overhead data from both software and hardware and
allows software to select the version that is forwarded to the txspoh_proc path processor block. Software can
also specify actions on the SPE data such as AIS-P insertion and RDI-P insertion.
The txspoh_proc block receives payload data from the VT Mapper interface and path overhead data from the
txspoh_cont block and performs a multiplexing function using the location information from the txspoh_proc
transport processor block. The txspoh_proc block also generates the H1/H2 pointer bytes and provides them
on its output data port at the appropriate instances in the transport overhead. Since there can be multiple path
blocks for a SDH transmitter, the txspoh_proc block only puts bytes onto its output data ports when the current
transmit time slot belongs to its path. Otherwise, zeros are placed on the output data port. The data from all the
txspoh_proc blocks are ORed together before being forwarded to the txstoh_proc block.
The txstoh_cont transport control block receives transport overhead data from both software and hardware and
allows software to specify the version that is forwarded to the txstoh_proc block. Software also specifies
actions such as AIS-L insertion, LOS insertion, and BIP-8 error insertions.
39
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
The txstoh_proc block accepts SPE data from the txspoh_proc blocks and transport overhead data from the
txstoh_cont block. The txstoh_proc block generates transmit location signals and chooses from the appropriate
input data stream for each byte location in the frame. The txstoh_proc also generates time advanced versions
of the location signals for the other SDH transmit blocks to facilitate pipelining.
FIGURE 13. SDH TRANSMITTER GENERAL STRUCTURE
Transmit Frame Location Counters
HW
TOH data
TxsPOH_cont
block
HW
POH data
TxsTOH_proc
block
TxsPOH_cont
block
TxsPOH_proc
block
PATH
software
POH data
SPE dat
OR function
software
TOH data
payload data
From VT Mapper
SPE data from
other path blocks
Processor Interface Bus
4.4
SDH RECEIVE DATA FLOW
The SDH receive blocks receive SDH STM-1 signals with various concatenation compositions and perform the
necessary transport and path overhead processing. Strobe signals are generated for downstream circuitry to
extract the payload data.
Figure 14 shows the general composition of an SDH STM-1 receiver. The receiver consists of a transport
section and a path section. The receive transport section consists of one rxstoh_proc block which finds frame
synchronization, performs error checking, de-scrambles the data, contains one rxstoh_stat block which
provides the register file for the SDH receive transport section, maintains some counters and buffers, and
contains one rxstoh_cap block which captures all the transport overhead bytes for possible processing by the
software. The receive path section consists of 5 path blocks. Each path block consists of one rxspoh_proc
block which does pointer processing and error checking, one rxspoh_stat block which provides the register file
for the receive path section and maintains some counters and buffers, and one rxspoh_cap block which
captures all the path overhead bytes for processing by software. The SDH receive (and transmit) blocks
support a 32 bit internal data bus width. The wider data width allows the SDH receiver/transmitter to limit the
internal clock speed to a reasonable number for high bandwidth STM-1 streams.
The byte align block is an auxiliary block acting as a simple barrel shifter to align the incoming bytes according
to the rxstoh_proc block's requests.
40
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
FIGURE 14. GENERAL COMPOSITION OF A SDH STM-N RECEIVER
1 path block for each
additional path
SDH
Data
Byte align
Shifted
Raw
Data
de-scrambled
data
location signals
RxsTOH_proc
RxsPOH_proc
Path
Block
Status
&
Control
Status
&
Control
RxsTOH_stat
RxsPOH_stat
RxsTOH_cap
RxsPOH_cap
Internal Processor Interface Bus
4.5
VT MAPPER
The VTM VT/TU Mapper block is designed to map E1 signals into an SDH VC-3/TUG-3 which in turn can be
mapped respectively into an STM-0 or into an STM-1. This reusable block provides all of the functions
necessary to insert and drop any valid combination of up to 21 asynchronous E1signals to or from an STM-0
Payload Capacity or an SDH VC-3.
On the STM-0/STM-1 side, the reusable block has an 8-bit data bus. This allows it to interface to the other
blocks that will process the higher layers of overhead. On the E1 side, this block has bit serial data inputs and
outputs. The VTM contains built-in test pattern insertion and drop capabilities that allow end-to-end testing for
initial setup or maintenance without the need for external test equipment. Built-in loopbacks on both sides
provide maximum flexibility for use in a number of SDH or E1 products including terminal multiplexers, add/
drop multiplexers, or digital cross connects. A high-speed microprocessor interface and full user
programmability for VT/TU slot insertion and drop control provide maximum flexibility for E1 configuration.
41
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
FIGURE 15. TOP LEVEL BLOCK DIAGRAM
MKP : Make Payload
E1in
to
SDH
21 E1
19.44MHz
E1
E1 Test
Channel
TPG
Loopbacks
&
RDI/REI/RFI
Reference
Clocks
Generator
Software
Interface
Registers
addr
data
sel
read
dtack
irq
XTP : Extract Payload
To External
Jitter
21 E1
Attenuators
from
SDH
Clock Domain
Boundary
The E1 to SDH section shown in the top part of Figure 15, handles the deserialization of the up to 21 incoming
signals. It handles the VT Path Overhead (SDH: VC Path Overhead) processing and Fixed Stuff insertion to
generate a byte-serial stream on the 8-bit mid bus ready to be processed by the Path, Line and Section
Overhead processing blocks to produce an STM-0 or STM-1 signal.
The SDH to E1 section shown in the bottom part of Figure 15 accepts a byte-serial stream on the mid bus,
removes the Fixed Stuff and extracts the virtual tributaries (SDH: Tributary Units) to create up to 21 E1 signals
with gapped clocks.
42
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
4.6
REV. 1.0.1
INTERRUPTS AND STATUS
An interrupt pin (INT) is provided for microcontroller interface. This interrupt pin provides interrupts in response
to alarm conditions, error events, messages received, error counter overflows, synchronization indication, and
parity errors. The interrupt scheme is organized in a Hierarchical Status Reporting architecture to provide a
means for a microcontroller to identify the source of interrupt. Status registers record the latest situation of
condition events. An interrupt will be generated if the ENABLE bit corresponding to a given status is set in the
interrupt enable register.
Each block contains several sources of interrupts. These interrupts are first multiplexed at the block level. Then
the interrupts from different blocks are integrated to generate an interrupt signal on the INT pin. The
multiplexing of these interrupts is thus at two levels:
1.
Source Level.
2.
Block Level
At the source level, interrupts may be individually enabled or disabled. All interrupts in a block are multiplexed
to produce a block level interrupt. These block level interrupts may then be separately enabled or disabled.
Figure 16 is a simplified block diagram of the status reporting hierarchy.
FIGURE 16. INTERRUPT HIERARCHY
Block
Block
Interrupt
Enable
Interrupt
RegisterEnable
Register
OR
TOH
TOH
Interrupt
Enable
Interrupt
RegisterEnable
Register
&
TOH
TOH
Interrupt
Status
Interrupt
RegisterStatus
Register
&
OR
Block
Block
Interrupt
Status
Interrupt
RegisterStatus
Register
. . .
VT Mapper
ATM/PPP
Interrupt
Enable
Interrupt
RegisterEnable
Register
OR
OR
POH
POH
Interrupt
Enable
Interrupt
RegisterEnable
Register
&
&
VT Mapper
ATM/PPP
Interrupt
Status
Interrupt
RegisterStatus
Register
POH
POH
Interrupt
Status
Interrupt
RegisterStatus
Register
43
To µP
interrupt
pin (pINT_L)
OR
E1 Framer
UTOPIA
Interrupt
Enable
Interrupt
RegisterEnable
Register
&
E1 Framer
UTOPIA
Interrupt
Status
Interrupt
RegisterStatus
Register
XRT86SH221
REV. 1.0.1
4.7
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
INTERRUPT PROCESSING AND CONTROL
Each time an interrupt occurs, a microprocessor can identify the source of the interrupt by searching through
the status hierarchy. The search will cause the status register on the search tree to be read. Reading of the
leaf status register will clear the ENABLE bit(s) associated with the interrupting status bit(s) if the ENBCLR bit
in Interrupt Control Register is set. This will prevent continuous interrupts to be generated once the
microcontroller services the status register. Reading of the leaf status register will also reset the status bit(s) if
the Reset Upon Read (RUR) option in the Interrupt Control Register has been enabled. Otherwise, a write is
required to clear the bit(s) in the status registers. To clear the bit(s) in the status registers, the microcontroller
needs to write a mask (0 to mask and 1 to clear) to this register to identify the bit that it wants to clear.
STATUS POLLING
The SDH framer supports status polling capability for all status registers. The operation is executed by
preceding a read of these registers with a write. When a one is written to a bit position, the read register will be
updated with the current value and the status bit will be cleared. When a zero is written to a bit position, the
read register will not be updated and the previous value will be held. This scheme allows an external
microcontroller to individually poll certain bits without disturbing the other bits in the register.
4.8
STM-0/1 RECEIVE TRANSPORT PROCESSOR
RXSTOH_PROC BLOCK
The rxstoh_proc block has an 8 bit internal interface bus. The rxstoh_proc block performs the following
functions: Byte alignment, LOS detection, frame alignment, de-scrambling, BIP processing, and line RDI and
AIS detection. The rxstoh_proc block also generates location signals for the rest of the SDH receive blocks.
BYTE_ALIGN BLOCK
The byte_align block acts as a barrel shifter which shifts the parallel SDH input stream according to requests
from the framer in the rxstoh_proc block. Figure 17 shows the functional diagram of the byte_align block.
FIGURE 17. BYTE_ALIGN BLOCK FUNCTIONAL DIAGRAM
BYTE 1
BYTE 1
raw data
32
32
32
SHIFTER
bit shift count
shifted data
32
5
RXSTOH_PROC
44
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
LOS DETECTION
The rxstoh_proc block monitors the incoming scrambled data for the absence of 1's. The SDH standard has
the following two rules for handling LOS defects which are observed by the rxstoh_proc block.
• An SDH NE shall monitor all incoming SDH signals (before de-scrambling) for an "all-zeros pattern," where
an all-zeros pattern corresponds to no light pulses for OC-N optical interfaces and no voltage transitions for
STM-0 and STM-1 electrical interfaces. A LOS defect shall be detected when an all-zeros pattern on the
incoming SDH signal lasts 100µs or longer. If an all-zeros pattern lasts 2.3µs or less, a LOS defect shall not
be detected.
• An SDH NE shall terminate a LOS defect when the incoming signal has two consecutive valid framing
alignment patterns and during the intervening time (one frame), no all-zeros pattern qualifying as a LOS
defect exists.
The rxstoh_proc block allows the software to specify the number of all zero bytes before a LOS defect is
declared and clears the LOS defect when the conditions stated are satisfied.
The rxstoh_proc block also monitors the LOPC (loss of optical carrier) input which when asserted, causes the
rxstoh_proc block to automatically assert AIS downstream (this feature is programmable by software). This
feature is useful when the off-chip optical instrument has detected a loss of carrier but the amplifier data output
to the chip still contains random transitions.
FRAME ALIGNMENT
The rxstoh_proc block monitors the incoming stream for A1 and A2 patterns to determine frame alignment. The
following SDH standard rules concerning finding frame alignment are observed by the rxstoh_proc block.
■
The A1 byte shall be set to '11110110' (Hex F6) and the A2 byte shall be se to '00101000' (Hex 28) in all
STM-0s within an STM-N.
■
The framing pattern observed by an SDH NE shall include a subset of the A1 and A2 bytes contained in
the incoming STM-N electrical or OC-N signal.
■
An SEF defect shall be detected when the incoming signal has a minimum of 4 consecutive erred
framing patterns. The maximum SEF detection time shall be 625µs for a random signal.
■
The framing algorithm used to check the alignment shall be such that an SEF defect is not detected
more than an average of once every 6 minutes while the BER of the STM-N electrical or OC-N signal is
10-3.
■
Once an SEF defect has been detected, the SDH NE shall terminate the SEF defect upon detecting two
successive error-free framing patterns.
■
All incoming SDH signals shall be monitored for LOF. A SDH NE shall detect an LOF defect when an
SEF defect on the incoming SDH signal persists for 3ms.
■
The SDH NE shall terminate an LOF defect 1ms to 3ms after terminating the SEF defect on the
incoming SDH signal, if the SEF defect is not (re)detected before the LOF defect is terminated.
The rxstoh_proc block implements the optional 3ms integration timer to deal with SEF and LOF defects. The
integration timer consists of an SEF timer and an in-frame timer that operates as follows:
The in-frame timer is activated (accumulates) when an SEF defect is absent. It stops accumulating and is reset
to zero when an SEF defect is detected. The SEF timer is activated (accumulates) when an SEF is present. It
stops accumulating when the SEF defect is terminated. It is reset to zero when the SEF defect is absent
continuously for 3ms (i.e., the in-frame timer reaches 3ms). An LOF defect is detected when the accumulated
SEF timer reaches the 3ms threshold. Once detected, the LOF defect is terminated when the in-frame timer
reaches 3ms (24 frames).
When SEF is low (i.e., the framer currently has frame alignment), the rxstoh_proc block allows the software to
specify the number of correct A1 fields that must be followed by the same number of correct A2 fields for the
framing pattern to be considered correct. When the rxstoh_proc is searching for frame (i.e., the SEF defect has
been declared), all bits of all the A1 and A2 bytes must be correct in order for the A1 or A2 byte to be
considered valid.
45
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
Once a frame has been located, the rxstoh_proc block outputs the current row, column, and time slot of the descrambled data. Note that for the 8-bit version of rxstoh_proc, a time slot is the same as an STS slot where as
for the 32-bit version of rxstoh_proc, each time slot contains 4 STS slots (byte lanes). The software can also
force the SEF condition which causes the rxstoh_proc to re-find frame.
Alternatively, the SDH framer also monitors a frame pulse input. When the frame pulse input is asserted, the
framer automatically assumes the current byte on the input data bus is the first A1 byte.
The software can force the SEF condition in the framer in the rxstoh_proc block by writing a "1" to the
appropriate register file bit. This causes the rxstoh_proc block to declare an SEF alarm and re-find frame. The
bit is cleared after the rxstoh_proc block has rediscovered frame alignment (after at least 1 frame) and the SEF
alarm has been removed.
De-scrambling
The rxstoh_proc de-scrambles all bytes of the incoming stream except for theA1, A2, and J0/Z0 bytes. The
following SDH standard rule is observed by rxstoh_proc. De-scrambling can be disabled via software.
SDH interface signals shall be scrambled (i.e., scrambled at the transmitter and de-scrambled at the receiver)
using a frame synchronous scrambler of sequence length 127, operating at the line rate. The generating
polynomial for the scrambler shall be 1+x6+x7. The scrambler shall be reset to '1111111' on the most-significant
bit of the byte following the Z0 byte in the Nth STM-0 (i.e., the byte following the last Z0 byte). That bit and all
subsequent bits to be scrambled shall be added, modulo 2, to the output from the x7 position of the scrambler.
The scrambler shall run continuously from that bit on throughout the remainder of the STM-N frame.
BIP Processing
The rxstoh_proc block calculates BIP-8 over the pertinent bytes of the incoming stream for comparison with
both the B1 and B2 fields of the transport overhead. The B1 and B2 values are calculated according to the
following SDH standard rules:
■
The B1 byte in a line-side signal shall carry a BIP-8 code, using even parity. The section BIP-8 shall be
calculated over all bits of the previous STM-N frame after scrambling and placed in the B1 byte of the
current STM-N frame before scrambling.
■
The B2 byte shall be provided in all STM-0s within an STM-N to carry a Line BIP-8 code, using even
parity. The Line BIP-8 shall be calculated over all bits of the Line Overhead and the envelop capacity of
the previous STM-0 frame before scrambling, and placed in the B2 byte of the current STM-0 frame
before scrambling.
The rxstoh_proc block outputs an error mask to the rxstoh_stat block after each comparison with B1/B2. Note
that only the first B1 byte of an STM-N stream contains the BIP-8 bits. The second through the Nth B1 bytes
are all undefined. The number of B2 bytes is equal to the number of STM-0's within the STM-N signal. Two
memories are used in the B2 error code calculations. One memory is used to store the running value of the B2
error calculations. This memory is a 12x8/32 dual port RAM with one port for reads and one port for writes.
This is necessary because as the hardware is calculating the B2 code for each STM-0, it needs to store the
new value into the memory and at the same time fetch the current code for the next STM-0 from memory. The
second memory is a single port 12x8/32 RAM used to store the final B2 codes for all the STM-0's. This memory
is read at the B2 byte locations for comparisons and written into the A1 byte locations to store the final B2
codes for the previous frame. For the 8 bit version of the rxstoh_proc block, the B2 RAM widths are 8 bits. For
the 32 bit version of rxstoh_proc block, the B2 RAM widths are 32 bits.
LINE RDI AND AIS DETECTION
The rxstoh_proc block monitors the 3 least significant bits of the first K2 byte for RDI_L and AIS_L detection.
The AIS_L detection algorithm follows the following SDH standard rules:
■
LTE shall detect an AIS-L defect on the incoming signal when bits 6, 7, and 8 of the K2 byte contain the
'111' pattern in 5 consecutive frames
■
LTE shall terminate the AIS-L defect on the incoming signal when bits 6, 7, and 8 of the K2 byte have
any pattern other than '111' in five consecutive frames.
46
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
NOTE: The number of consecutive observations is 5. Also, bits 6, 7 and 8 in the SDH standard refer to the least significant
3 bits. The RDI_L detection algorithm follows the following SDH standard rules:
■
LTE shall detect an RDI-L defect on the incoming signal when bits 6, 7, and 8 of the K2 byte contains the
'110' pattern in 5 to 10 consecutive frames
■
LTE shall terminate the RDI-L defect on the incoming signal when bits 6, 7, and 8 of the K2 byte have
any pattern other than '110' in five to 10 consecutive frames.
DOWNSTREAM AIS INSERTION
The rxstoh_proc block will insert path AIS in the downstream data when prompted by the rxstoh_stat block.
RXSTOH_STAT BLOCK
The rxstoh_stat block has an 8 bit internal bus. The rxstoh_stat block contains the status and control registers
for the transport overhead blocks. In addition, the rxstoh_stat block monitors the S1, REI-L, and K1/K2 fields of
the transport overhead. The rxstoh_stat block also monitors the B1 and B2 error masks and accumulates the
bit or word error events.
SYNCHRONIZATION STATUS (S1) MONITOR
The rxstoh_stat block extracts the synchronization status (S1) byte from the line overhead and monitors it for
change. The S1 byte is only defined for the first STM-0 in an STM-1 signal. The extraction algorithm is defined
by the SDH standard as:
■
A change in the S1 synchronization status message shall be detected if at least 8 consecutive samples
(these may or may not be consecutive SDH frames) of bits 5-8 (least significant 4 bits) of the S1 byte
have the same (new) value. The sampling rate shall be such that the maximum time to detect a change
(assuming no transmission errors) is 1 second.
■
For S1 messages, if no validated synchronization status message is detected (e.g., due to transmission
errors or the receipt of an undefined message) for a period of greater than 10 seconds, the NE shall
consider the reference failed.
The rxstoh_stat block monitors the S1 byte for 8 consecutive identical values after which the new value is
stored in a register for access by software. The rxstoh_stat block also implements a counter for an unstable
S1. This counter is incremented for each byte that differs from the previously received byte. An invalid S1
condition is declared when the S1 counter reaches 32. The S1 counter is cleared to 0 when 8 consecutive
identical S1 bytes are received. Upon detection of an invalid S1 condition, the software can then set up a 10s
timer to detect for S1 reference failure.
REI-L (M0/M1) MONITOR
The M0/M1 field contains the line remote error indicator (REI-L) count. For an STM-0 stream, the count is
contained in the first REI-L byte (M0 byte) whereas for an STM-1 or higher stream, the count is contained in the
third REI-L byte (M1 byte). The rxstoh_stat block interprets the REI-L field according to the following SDH
standard rules:
■
LTE terminating an OC-1 or STM-0 electrical signal shall set bits 5 through 8 of the M0 byte to indicate
(to the upstream LTE) the count of the interleaved-bit block errors that it has detected based on the BIP8 (B2) byte. The error count shall be a binary number from zero (i.e., 0000) to 8 (i.e., 1000). The
remaining seven values represented by the four REI-L bits (i.e., 1001 through 1111) shall not be
transmitted, and shall be interpreted by receiving LTE as zero errors.
■
LTE terminating an OC-N or STM-N electrical signal (N greater than or equal to 3) shall set the M1 byte
to indicate (to the upstream LTE) the count of the interleaved-bit block errors that it has detected using
the B2 bytes. For values of N below 48, the error count shall be a binary number from zero to 8xN. The
remaining possible values [i.e., 255-(8xN)] represented by the eight REI-L bits shall not be transmitted
and shall be interpreted by the receiving LTE as zero errors. For N equal to 48, the count shall be
truncated at 255.
The rxstoh_stat accumulates the REI-L counts in a 20 bit saturation counter. The count is transferred to a
holding register and reset by software request. The rxstoh_stat also flags any non zero REI-L counts. The
47
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
software can configure the rxstoh_stat block to accumulate either bit errors or error events. An error event is
defined as any non-zero REI-L count.
Since 8000 frames are received each second and the maximum REI-L count of each frame is 255, the
software should poll (and clear) the M1 counter at least once every 232/(8000x255) = 2105 seconds.
K1/K2 MONITOR
The rxstoh_stat block filters and captures the first K1 and K2 bytes of the STM-N stream for APS processing by
the software. The filtering is done based on the following SDH standard rule:
■
A new code on the received K1 and K2 bytes shall replace the current received code if it is received
identically in five consecutive frames.
In addition, rxstoh_stat also monitors the K1 byte for inconsistent APS byte error according to the following
definition of the SDH standard.
"An inconsistent APS byte occurs when no three (five) consecutive K1 bytes of the last 12 successive frames
are identical, starting with the last frame containing a previously consistent byte."
When an inconsistent APS byte occurs, a flag is set to notify the software. When a new K1/K2 code is
detected, a flag is set to notify the software.
B1 ERROR MONITOR
The rxstoh_stat block monitors the B1 error mask from the rxstoh_proc block and accumulates the error count
in a 16 bit saturation counter. Upon software request, the count is transferred to a holding register and reset.
The software specifies whether to accumulate B1 error bits or events where an error event is defined as any
non-zero B1 error mask received from the rxstoh_proc block. A flag is set to notify the software whenever a B1
error event occurs.
Since 8000 frames are received each second and the maximum B1 error count of each frame is 8, the counter
will saturate after 232/(8000x8) = 67108 seconds
B2/SD/SF ERROR MONITOR
The rxstoh_stat block accumulates the B2 error count using a 32 bit counter in the same manner as the B1
error counter. Since 8000 frames are received each second and the maximum B2 error count of each frame is
384, the software should poll (and clear) the M1 counter at least once every 232/(8000x384) = 1398 seconds.
In addition, the rxstoh_stat block monitors BIP-2 codes for Signal Fail (SF) and Signal Degrade (SD)
conditions. The SD/SF monitoring is done using a discretized sliding window protocol in which the sliding
window size is de-composed into 8 sub-intervals. SD/SF is declared if the total B2 error count of all the subintervals exceeds a given threshold. Similarly, SD/SF is cleared when the total B2 error count is below a given
threshold. In addition, the user can specify a burst tolerance threshold for each sub-interval. The B2 error count
for each sub-interval is saturated at the burst tolerance threshold. The window size and thresholds for
declaring and clearing SD/SF alarms are specified separately. The window size and thresholds for SD and SF
are also specified separately. As a result, 4 sliding windows are needed. The sliding window is implemented by
the rxstoh_berm block, 4 of which are instantiated by the rxstoh_stat block.
The setting and clearing of the SF and SD signals adhere to the following SDH standard rules and
recommendations:
■
■
■
■
Loss of Signal, Loss of Frame, AIS-L defects, and a Line BER exceeding 10-3 on an incoming OC-N
shall be detected as SF conditions on that line.
The BER threshold for an SF condition may be required to be user-provisionable over the range of 10-3
to 10-5
A BER exceeding the SD threshold on an incoming OC-N shall be detected as an SD condition on that
line
The BER threshold for an SD condition shall be user-provisionable over the range of 10-5 to 10-9
48
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
The rxstoh_stat block lets software specify the time interval over which to monitor the B2 error counts and the
thresholds over/under which to set/clear the SF and SD conditions.
SEF FORCE
Software can force the SEF condition in the frame finder in the rxstoh_proc block by writing a "1" to the
appropriate register file bit. This causes the rxstoh_proc block to re-find frame. The bit is cleared after the
rxstoh_proc block has rediscovered frame alignment (after at least 1 frame).
SECTION TRACE (J0) MONITOR
The SDH standard has defined the J0 byte as a 1 byte or 16 byte message in the following manner:
This byte is used to transmit repetitively a Section Access Point Identifier so that a section receiver can verify
its continued connection to the intended transmitter. Within a national network, or within the domain of a single
operator, this Section Access Point Identifier may use either a single byte (containing the code 0-255) or the
Access Point Identifier format as defined in clause 3/G.831. At international boundaries, or at the boundaries
between the networks of different operators, the format defined in clause 3/G.831 shall be used unless
otherwise mutually agreed by the operators providing the transport.
A 16-byte frame is defined for the transmission of Section Access Point Identifiers where these conform to the
definition contained in clause 3/G.831. The first byte of the string is a frame start marker and includes the result
of a CRC-7 calculation over the previous frame. The following 15 bytes are used for the transport of 15 T.50
characters (international Reference Version) required for the Section Access Point Identifier. The 16 byte
frame description is given in the table below:
TABLE 1: 16-BYTE FRAME FOR TRAIL APID
BYTE #
VALUE (BIT 1, 2, … ,8)
1
1
C1
C2
C3
C4
C5
C6
C7
2
0
X
X
X
X
X
X
X
3
0
X
X
X
X
X
X
X
:
:
16
0
X
X
X
:
X
X
X
X
NOTES:
1.
C1 to C7 is the result of the CRC-7 calculation over the previous frame. C1 is the MSB. The description of this
CRC-7 calculation is given in Annex B
2.
0XXXXXXX represents a T.50 character.
.2
In the case of inter-working of equipment implementing the STM identifier functionality and equipment
employing the Regenerator Section Trace function, the latter shall interpret the pattern "0000001" in J0 as
"Regenerator Section Trace - unspecified". This unspecified Regenerator Section Trace can also be used if no
use of the Regenerator Section Trace is made.
The rxstoh_stat block enables software to specify the length of the J0 section trace message. This length could
be 1 or 16 for SDH, and 64 should the SDH standard in the future specify the J0 byte as a section trace byte.
The software also specifies whether to look for an LF or a starting "1" bit when the rxstoh_stat block is trying to
locate the start of the message. The software also specifies the number (3 or 5) of consecutive consistent
section trace messages that must be observed before it is accepted.
An interrupt is generated when a new section trace message is accepted as valid. The valid section trace
message is compared with an expected section trace message downloaded to memory by software. A J0
mismatch (J0_MIS) flag is raised if the 2 messages are not identical. The rxstoh_stat block also implements a
J0 unstable counter. The J0 unstable counter is incremented for each byte that differs from the previously
49
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
received byte. An invalid J0 condition is declared when the J0 unstable counter reaches 8. The J0 unstable
counter is cleared to 0 when a valid J0 is accepted.
The SDH receive section trace buffer uses a 128x8 single port memory and a 64x8 single port memory. The
memories are organised as shown in Figure 18. The 128x8 single port ram has 2 segments:
■
One segment stores the current accepted trace message
■
One segment stores the previous received trace message
The 64x8 single port ram stores the expected trace message which is downloaded by the CPU.
Whenever a new trace message is accepted as valid, the valid message buffer and the previous message
buffer swap in the sense that what used to be the valid message buffer segment is now the segment for storing
the previous received message and vice versa. The CPU downloads new expected trace messages to the new
expected message buffer. Since comparisons between the expected trace message buffer and the accepted
trace message buffer are not valid when the CPU is downloading to the expected trace message buffer, the J0
mismatch interrupt should be disabled during downloading of the expected trace message buffer.
FIGURE 18. RECEIVE TRACE BUFFER MEMORY
8’h00
8’h00
J0 current valid
message
buffer
J0 current
expected message
buffer
8’h3F
8’h3F
8’h40
J0 previous
received message
buffer
8’h7F
DOWNSTREAM AIS INSERTION CONTROL
The rxstoh_stat block can be configured to cause downstream AIS insertion when any of the following
conditions are detected: AIS-L, LOS, LOF, LOPC, SD, SF, J0 mismatch, and J0 unstable. Downstream AIS
insertion to the path section is done according to the following SDH rule:
■
LTE shall generate AIS-P downstream for the affected STS paths within 125µs of detecting an AIS-L
defect (or a lower layer, traffic-related, near-end defect) or (if the STS pointer is processed) an LOP-P
defect on the incoming signal, or the failure of STS PTE supporting provisioned path origination
functions. The AIS-P shall be generated as all-ones in the H1, H2 and H3 bytes, and the entire STS
SPE.
■
LTE shall deactivate the AIS-P within 125µs of terminating the defect that caused it to be sent, or in the
case of a local equipment failure, within 125µs of clearing the failure or determining that standby
equipment has been switched in. LTE that performs STS pointer processing shall deactivate AIS-P by
constructing a correct STS pointer with a set NDF, followed by normal pointer operations, as well as
ceasing to insert the all ones pattern in the STS SPE. LTE that does not perform STS pointer processing
shall deactivate AIS-P by ceasing the insertion of all ones in the H1, H2 and H3 bytes, and the STS
SPE.
50
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
The software can enable or disable the insertion of path AIS-P on detection of any of the aforementioned
conditions. If path AIS insertion is necessary, then an enable signal to the rxstoh_proc block is activated which
causes the rxstoh_proc block to insert all ones in the pertinent bytes.
RXSTOH_CAP BLOCK
The rxstoh_cap block has an 8 bit internal interface bus. The rxstoh_cap block captures the contents of the
SDH overhead for up to 3 STM-0 slots and stores them for access by the external processor. On a read access
from the processor interface, the bit rxstoh_cap block accepts a 9 bit address of the form: xxxxxyyyy where
xxxxx specifies the field number and yyyy specifies the time slot number of the 4 bytes that are requested.
One 944x8 (STM-1) or 256x8 (STM-0) single port RAM is used to capture and hold the SDH OH contents for
the processor of each byte-slice module. The memory is divided into one 512 x 8 (only 432 is used) and one
432 x 8 segments. One segment captures the SDH overhead bytes from the current frame while the other
segment stores the transport overhead bytes from the previous frame. The two segments are swapped after
every frame in the sense that what used to be the current SDH OH byte capture segment is now the holding
segment for the previous frame and vice versa.
When the last SDH overhead byte of the current frame has been written into memory, an interrupt is generated
to notify the software. The contents of the SDH overhead memory will be preserved for one frame (i.e., until the
next SDH OH capture generates an interrupt) for access by the software.
The captured SDH OH bytes are available to the processor via indirect memory registers. The addressing
scheme used to access the SDH OH bytes is shown in Table 2. Each access to a captured SDH OH byte
consists of writing the corresponding address into the SDH OH capture indirect address register followed by a
read/write to/from the SDH OH capture indirect data register.
TABLE 2: ADDRESSING SCHEME USED TO ACCESS THE SDH OH BYTES
ADDR[9:2]
Byte 3 (MSB)
Byte 2
Byte 1
Byte 0 (LSB)
{5'h00, 2'h0}
A1 (STS-0)
A1 (STM-0)
A1 (STS-2)
A1 (STM-1)
{5'h00, 2'h1}
A1 (STS-4)
A1 (STS-5)
A1 (STS-6)
A1 (STS-7)
{5'h00, 2'h2}
A1 (STS-8)
A1 (STS-9)
A1 (STM-00)
A1 (STM-01)
{5'h00, 2'h3}
unused
unused
unused
Unused
{5'h01, 2'h0}
A2 (STS-0)
A2 (STM-0)
A2 (STS-2)
A2 (STM-1)
{5'h01, 2'h1}
A2 (STS-4)
A2 (STS-5)
A2 (STS-6)
A2 (STS-7)
{5'h01, 2'h2}
A2 (STS-8)
A2 (STS-9)
A2 (STM-00)
A2 (STM-01)
{5'h01, 2'h3}
unused
unused
unused
Unused
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
{5'h1A, 2'h0}
E2
byte 26 (STM-0)
Byte 26 (STS-2)
byte 26 (STM-1)
.
.
.
.
.
{5'h1A, 2'h2}
byte 26 (STS-8)
byte 26 (STS-9)
byte 26 (STM-00)
byte 26 (STM-01)
{5'h1A, 2'hC}
unused
unused
unused
unused
.
.
.
.
.
.
.
.
..
51
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
When this module is used for the STM-0 or STM-1 port, the captured SDH overhead bytes are serialized and
sent as outputs from the chip (with the exception of the M0 byte which is replaced by the more useful M1 byte
from the third STM-0). The bytes are multiplexed onto a single bit stream as shown in Figure 19. The RxOH,
RxOHFRAME, and RxOHVALID signals are updated on the falling edge of RxOHCLK. When used on the
STM-0/STM-1 side, the bytes captured are sent out to the external interface through an 8-bit bus.
FIGURE 19. RECEIVE TRANSPORT OVERHEAD INTERFACE TIMING
SDH Overhead: clock and signal bits
RxOHCLK
RxOHFRAME
A1 A1 A1 A1 A1 A1 A1 A1 A2 A2 A2 A2 A2 A2 A2 A2 J0 J0 J0 J0 J0 J0 J0 J0
RxOH
RxOHVALID
Note: RxPOH_IND is low for SDH OH drop-off. The most significant bit is transmitted first
SDH Overhead: clock and signal bytes
RxOHCLK
RxOHFRAME
A1
RxOH
RxOHVALID
A2
J0
B1
E1
F1
D1
D2
D3
H1
H2
H3
Note: All the other SDH OH bytes from STM-0 #1 follow similarly with the exception of the M0/M1 byte
position which contains M1 from STM-0 #2 rather than M0.
52
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
STM-0/1 RECEIVE PATH PROCESSOR
RXSPOH_PROC BLOCK
The pointer processing operation of the rxspoh_proc block is described by the following SDH standard rules:
■
The pointer value shall be a binary number with a range of 0 to 782, and shall indicate the offset
between the pointer word (the last byte of the H3 field) and the first byte of the STS SPE.
■
A pointer increment operation shall be indicated by inverting the I-bits of the pointer word. The positive
stuff byte shall appear immediately after the H3 byte in the frame containing the inverted I-bits.
■
A pointer decrement operation shall be indicated by inverting the D-bits of the pointer word. The H3 byte
shall be used as the negative stuff byte, (i.e., it is used to carry an SPE byte in the frame containing the
inverted D-bits).
■
The increment/decrement decision should be made at the receiver by a match of 8 or more of the 10 Iand D-bits to either the increment or decrement indication.
■
A normal NDF shall be indicated (during normal operation) by a '0110' code in the N-bits. The NDF shall
be set by inverting the N-bits to '1001'. The new alignment of the STS PSE shall be indicated by the
pointer value accompanying the set NDF and takes effect at the offset indicated.
■
The decoding at the pointer processor shall be performed by majority voting (i.e., the NDF shall be
detected as being set if three or four of the N-bits match the '1001' code). If a set NDF is detected, then
the coincident pointer value shall replace the current value at the offset indicated by the new pointer
value.
■
The first STM-0 within an STM-Nc shall have a normal pointer word
■
All subsequent STM-0s within the STM-Nc shall have their pointer values (i.e., bits 7 through 16) set to
all-ones, and their N-bits set to '1001' (i.e., set NDFs).
■
A pointer processor in an NE that is transmitting or receiving an STM-Nc SPE shall perform the
operations indicated by the pointer in the first STM-0 of the STM-Nc on all N of the STM-0s in that STMNc.
■
During normal operation, the pointer value locates the start of the STS SPE within the STS Envelop
Capacity.
■
Any variation from the current pointer value shall be ignored unless a consistent new value is received
three times consecutively, or the variation is one of the operations in rules 4, 5, or 6.
■
Any consistent new value received three times in succession shall replace the current value at the offset
indicated by the new pointer value.
■
If the pointer word contains the concatenation indicator, then the operations performed on that STM-0
are identical to those performed on the first STM-0 within the STM-Nc. Rules 4 and 5 do not apply to this
pointer word.
■
If an increment is detected, then the byte following H3 shall be considered a positive stuff byte, and the
current pointer value shall be incremented by one.
■
If a decrement is detected, then H3 shall be considered a negative stuff byte, and the current pointer
value shall be decrement by one.
■
If a set NDF is detected, then the coincident pointer value replaces the current value at the offset
indicated by the new pointer value.
■
STS PTE and LTE that processes the STS pointer shall monitor for LOP-P. An LOP-P defect shall be
detected if a valid pointer is not found in N consecutive frames (where 8 is less than or equal to N less
than or equal to 10), or if N consecutive NDFs (other than in a concatenation indicator) are detected. An
LOP-P defect shall not be detected when LTE is receiving and relaying an all-ones STS pointer, or when
STS PTE is receiving pointers that qualify as those necessary to cause the detection of an AIS-P defect
(i.e., three or more consecutive all-ones pointers)
■
STS PTE and LTE that processes the STS pointers shall terminate an LOP-P defect when the STS has
a valid pointer with a normal NDF, or a valid concatenation indicator, in three consecutive frames.
■
STS PTE shall terminate an LOP-P defect when it detects an AIS-P defect.
53
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
■
STS PTE shall detect an AIS-P defect when the H1 and H2 bytes for an STS path contain an all-ones
pattern in three consecutive frames. For an STM-Nc path, only the H1 and H2 bytes of the first STM-0
need to be observed.
■
STS PTE shall terminate an AIS-P defect when the H1 and H2 bytes for the STS path contain a valid
STS Pointer with a set NDF, or when they contain valid, identical STS Pointers with normal NDFs for
three consecutive frames. For an STM-Nc path, the concatenation indicators must also be valid.
■
STS PTE should terminate an AIS-P defect when it detects an LOP-P defect.
The rxspoh_proc block chooses N as 8. Note that for a pointer to be considered valid, the following two
conditions from the SDH standard need to be satisfied:
"A pointer with an in-range value, the N-bits are set to their normal value."
The SDH standard also provides the following recommendation:
"If a pointer processor detects an increment or decrement operation within three frames after another pointer
change operation (e.g. due to transmission errors), it can either ignore that operation or interpret it as a valid
operation.
In addition, if the rxspoh_proc is operating in an SDH environment, then the ss bits of the pointer word must be
'10'. The above rules can be concisely summarized by the FSM in Table 3.
In Table 3, the label n x event_type denotes an event of event_type occurring in n consecutive pointers. The
event types are defined in Table 3.
54
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
FIGURE 20. POINTER PROCESSING FSM
ndf_ptr
inc_ptr_i
nd
3x
NORM
8x
inv_ptr_ind
3x
8x
ndf_ptr_i
3x
3x
3x
LOP
AIS
3x
TABLE 3: SDH POINTER EVENT TYPES
EVENT (INDICATION)
DESCRIPTION
norm_ptr_ind
disabled NDF + ss + offset value equal to active offset
ndf_ptr_ind
enabled NDF + ss + offset value in range of 0 to 782.
ais_ptr_ind
H1 = 'hFF', H2 = 'hFF'
inc_ptr_ind
disabled NDF + ss+ majority of I bits inverted + no majority of D bits inverted + previous ndf_ptr_ind, inc_ptr_ind,
or dec_ptr_ind more than 3 frames ago
dec_ptr_ind
disabled NDF + ss + majority of D bits inverted + no
majority of I bits inverted + previous ndf_ptr_ind,
inc_ptr_ind, or dec_ptr_ind more than 3 frames ago
inv_ptr_ind
not any of the above
new_ptr_ind
disabled NDF + ss + offset in range of 0 to 782 but no
equal to active offset.
55
REV. 1.0.1
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
B3 PROCESSING
The rxspoh_proc block calculates the path BIP-8 over the pertinent bytes of the incoming stream for
comparison with the B3 field of the path overhead. The B3 value is calculated according to the following SDH
standard rule:
■
The B3 byte shall carry a BIP-8 code, using even parity. The STS Path BIP-8 shall be calculated over all
bits (783 bytes for an STM-0 SPE or Nx783 bytes for an STM-Nc SPE, regardless of any pointer
adjustments) of the previous STS SPE before scrambling and placed in the B3 byte of the current STS
SPE before scrambling.
The rxspoh_proc block outputs an error mask to the rxspoh_stat block after each comparison with B3.
PAYLOAD EXTRACTION
The rxspoh_stat block determines the positions of the payload bytes within each frame and generates the
appropriate byte lane enables for the VT Mapper interface.
In an STM signal, the fixed columns are defined as the 3 columns following the POH column . The rxspoh_stat
block will detect the arrival of the fixed stuff bytes and will not generate any byte lane enables for the VT
Mapper interface during the fixed stuff bytes.
DOWNSTREAM AIS INSERTION
The rxspoh_proc block will insert path AIS in the downstream data when prompted by the rxspoh_stat block.
RXSPOH_CONCAT BLOCK
The rxspoh_concat block has an 8 bit internal bus. The concatenated pointer indicator has the value
1001_1111_1111_1111. The SDH standard gives a recommendation on concatenated pointer processing
similar to that of Figure 21. In Figure 21, the following events are defined:
conc_ind: NDF enabled + ss1111111111
ais_ptr_ind: 11111111 11111111
inv_ptr_ind: Any other.
The rxspoh_concat block processes the concatenation pointer indicator for each STS slot according to
Figure 21 and provides the current concatenated pointer indicator FSM state of each slot via registers.
56
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
FIGURE 21. CONCATENATED POINTER INDICATOR PROCESSING FSM
CONC
8x
inv_ptr_ind
3 x ais_ptr_ind
3 x conc_
LOP_C
3 x conc_ind
3x
AIS_C
3x
RXSPOH_STAT BLOCK
The rxspoh_stat block captures the status signals from the path overhead blocks and stores them in registers.
The rxspoh_proc block also accumulates REI-P counts from the G1 field and stores them in a 32 bit counter.
B3 MONITOR
The rxstoh_stat block monitors the B3 error mask from the rxspoh_proc block and accumulates the error count
in a 16 bit saturation counter. Upon software request, the count is transferred to a holding register and reset.
The software specifies whether to accumulate B3 error bits or B3 error events where an error event is defined
as any non-zero B3 error mask received from the rxspoh_proc block. An interrupt is flagged to notify software
whenever a B3 error event occurs.
RDI-P MONITOR
There have been two versions of definition for the path RDI defect in the SDH standard. The older version is
called single-bit RDI-P (SRDI-P) and uses only bit 5 (4th least significant bit) of the G1 byte. The current
version is called the enhanced RDI-P (ERIP-P)and uses bits 5, 6 and 7 of the G1 byte. The ERDI-P is declared
when bits 5, 6, and 7 of the G1 byte contain anything other than '011, 000, 001'. The SDH standard has the
following standard with respect to receiving the RDI-P signal:
■
STS PTE shall generate an appropriate RDI-P signal, as specified in Table 4, within 100ms of detecting
a listed defect.
■
When STS PTE generates a particular type of RDI-P signal, it shall generate it for at least 10 frames.
■
STS PTE that does not support ERDI-P shall detect a one-bit RDI-P defect when a "1" is received in bit
5 of G1 for 10 consecutive frames
■
STS PTE that supports ERDI-P shall detect an RDI-P defect when one of the RDI-P defect codes shown
in Table 4 (one-bit or enhanced) is received for 5 to 10 consecutive frames
■
STS PTE that does not support ERDI-P shall terminate the one-bit RDI-P defect when a "0" is received
in bit 5 of G1 for 10 consecutive frames.
57
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
■
STS PTE that supports ERDI-P shall terminate a particular type of RDI-P defect (one-bit or enhanced)
when a code other than the code corresponding to that defect is received for 5 to 10 consecutive frames
TABLE 4: RDI-P SETTINGS AND INTERPRETATION
G1 BITS 5, 6 AND 7
PRIORITY OF ERDI-P CODES
TRIGGER
INTERPRETATION
0xx
not applicable (for SRDI-P only, bits 6 and 7
should be '00')
No defects
No RDI-P defect
1xx
not applicable (for SRDI-P only, bits 6 and 7
should be '00')
AIS-P, LOP-P
one-bit RDI-P defect
001
4
No defects
No RDI-P defect
010
3
PLM-P, LCD-P
ERDI-P Payload Defect
101
2
AIS-P, LOP-P
ERDI-P Server Defect
110
1
UNEQ-P, TIM-P
ERDI-P Connectivity
defect
The rxspoh_stat block allows software to specify the type of RDI-P error to monitor. The software also
programs the number of consecutive consistent RDI-P codes that must be observed before it is accepted as
valid. When a new valid RDI-P is detected, a flag is set for software and the RDI-P code that caused the
condition is captured in a register. The rxspoh_stat block also implements a RDI-P unstable counter. The RDIP unstable counter is incremented for each byte that differs from the previously received byte. An invalid RDI-P
condition is declared when the RDI-P unstable counter reaches the software specified threshold. The RDI-P
unstable counter is cleared to 0 when a valid RDI-P code is accepted.
REI-P MONITOR
Bits 1 through 4 (most significant 4 bits) of the G1 byte are allocated to convey the path REI (REI-P) function
and are defined in the SDH standard as:
■
STS PTE shall set bits 1 through 4 of the G1 byte to indicate (to the upstream STS PTE) the count of
interleaved-bit block errors that it has detected based on the STS Path BIP-8 byte (B3). The error count
shall be a binary number from zero to 8. The remaining seven values shall not be transmitted and shall
be interpreted by receiving STS PTE as zero errors.
The rxspoh_stat accumulates the REI-P counts in a 16 bit saturation counter. The count is transferred to a
holding register and reset by software request. The rxspoh_stat also flags any non zero REI-L counts. The
software can configure the rxstoh_stat block to accumulate either bit errors or error events. An error event is
defined as any non-zero REI-P count.
SIGNAL LABEL (C2) MONITOR
The C2 byte is allocated to indicate the contents of the STS SPE and is treated as a signal label. The
rxspoh_stat block monitors the C2 byte for several conditions according to the SDH standard.
■
STS PTE shall detect an STS Payload Label Mismatch (PLM-P) defect within 250ms of the onset of at
least five consecutive samples (which may or may not be consecutive frames) of mismatched STS
Signal Labels (C2 byte), as specified in Table 5.
■
STS PTE should detect a PLM-P defect immediately upon receipt of five contiguous frames with
mismatched STS Signal Labels, as specified in Table 5.
■
STS PTE shall terminate a PLM-P defect within 250ms of detecting the onset of at least five consecutive
samples (which may or may not be consecutive frames) of matched STS Signal Labels.
■
STS PTE should terminate a PLM-P defect immediately upon receipt of five contiguous frames with
matched STS Signal Labels, as specified in Table 5.
■
STS PTE shall terminate a PLM-P defect upon detecting an UNEQ-P defect.
58
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
■
STS PTE shall detect an STS Path Unequipped (UNEQ-P) defect within 10ms of the onset of at least 5
consecutive samples (which may or may not be consecutive frames) of unequipped STS Signal Labels
(C2 byte = 00hex)
■
STS PTE should detect an UNEQ-P defect immediately upon receipt of five contiguous frames with
unequipped STS Signal Labels, as specified in Table 5.
■
STS PTE shall terminate an UNEQ-P defect within 10ms of the onset of at least five consecutive
samples (which may or may not be consecutive frames) of STS Signal Labels that are not unequipped.
■
STS PTE should terminate an UNEQ-P defect immediately upon receipt of five contiguous frames with
STS Signal Labels that are not unequipped, as specified in Table 5.
TABLE 5: STS SIGNAL LABEL MISMATCH DEFECT CONDITIONS
PROVISIONED STS PTE
FUNCTIONALITY
RECEIVED PAYLOAD LABEL (C2 BYTE, IN HEX FORMAT)
Any Equipped functionality (C2 =
anything except H00)
Unequipped (00)
Any Equipped functionality
Equipped - Non Specific (01)
DEFECT
UNEQ-P
none (Matched)
Equipped - Non Specific (C2 = H01) A value corresponding to any Payload Specific functionality
none (Matched)
Any Payload Specific functionality A value corresponding to the same payload specific functional(C2 = anything except H00 or H01) ity as the provisioned functionality
none (Matched)
Any Payload Specific functionality
A value corresponding to a different payload specific functionality as the provisioned functionality
PLM
The rxspoh_stat block allows software to specify the expected signal label and compares it with the observed
value. If the values mismatch, then a path label mismatch (PLM) error is declared. If the observed value is
00hex, then a path unequipped (UNEQ) error is declared (and PLM cleared). If the observed value matches
the expected value, then PLM is cleared. If the observed value changes, then a flag is set for software. For a
C2 label to be considered valid, it must be received in 5 consecutive frames. The rxspoh_stat blocks also
implements a C2 unstable counter. The C2 unstable counter is incremented for each byte that differs from the
previously received byte. An invalid C2 condition is declared when the C2 unstable counter reaches 5. The C2
unstable counter is cleared to 0 when 5 consecutive identical C2 bytes are received. The rxspoh_stat block
implements a mismatch mechanism that can be summarised in Table 6.
TABLE 6: TRUTH TABLE FOR PATH LABEL ERROR CONDITIONS
EXPECTED VALUE RECEIVED VALUE
ACTION
00
00
match
00
01
mismatch
00
XX
mismatch
01
00
UNEQ-P
01
01
match
01
XX
match
XX
00
UNEQ-P
XX
01
match
XX
XX
match
XX
YY
mismatch
59
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
PATH TRACE (J1) MONITOR
The J1 byte of the path overhead is used as a path trace identifier. The path trace identifier is monitored using
the following SDH standard rules:
■
An SDH NE that contains STS PTE shall allow the user to provision, on a per-path basis, the contents of
the STS Path Trace carried in the J1 byte of the STS path overhead originated by the PTE. The
transmitted STS Path Trace string shall be 64 bytes in length.
■
An SDH NE that contains STS PTE shall support a feature that allows the contents of the STS Path
Traces to be provisioned as ASCII characters. In addition, the following apply:
■
The feature shall allow the user to enter a string of up to 62 characters
■
The feature shall place no restriction on the content of the string except that the characters shall be
ASCII printable characters
■
The NE shall automatically pad the string entered by the user to 62 characters using ASCII NULL
characters, and then add <CR> and <LF> characters (i.e., 'OD' and '0A' for a total of 64 characters
■
Each 8 bit ASCII character shall be loaded into one J1 byte.
■
An SDH NE shall support a feature to allow the user to provision the expected ASCII-based path trace
for each STS path that it terminates and for which TIM-P detection has been activated. In addition, the
following apply:
1. The feature shall allow the user to enter a string of up to 62 characters
2. The feature shall place no restriction on the contents of the string, except that
3. The characters shall be ASCII printable characters.
■
STS PTE shall detect a TIM-P defect within 30 seconds (or less) when none of the sampled 64-byte
STS path trace strings match the provisioned expected value.
■
STS PTE shall terminate a TIM-P defect within 30 seconds (or less) when four-fifth (or more) of the
sampled STS path trace strings match the provisioned expected value
■
An SDH NE that is monitoring for changes of the incoming path trace shall detect when a sustained
change in the path trace content occurs. Upon detecting a sustained change, the NE shall send a
message to an OS. The level of the message shall be Not Alarmed, and it shall include both the
previously received path trace, and the new path trace (assuming they are ASCII-based).
■
An SDH NE that is monitoring for a mismatch between the incoming path trace and an expected path
trace for diagnostics purposes shall detect when a sustained mismatch occurs. Upon detecting a
sustained mismatch, the NE shall set an indication for that path and send a message to an OS. The level
of the message shall be Not Alarmed, and it shall include both the expected path trace, and the new
path trace (assuming they are ASCII-based).
■
An SDH that is monitoring the incoming path trace for diagnostic purposes and that has detected a
sustained mismatch shall detect when the incoming path trace matches the expected path trace. Upon
detecting a match, the NE shall clear the indication for that path and send a clear message to the OS (if
the mismatch was reported to an OS).
The SDH standard defines the path trace message length to be a 16 byte message. The message format is
such that the first byte of the message always has a "1" in its most significant bit while the subsequent bytes in
the message all have a "0" in their most significant bits.
The rxspoh_stat block allows software to specify the length of the J1 section trace message. This length could
be 1 or 16 for SDH. The software also specifies whether to look for a <LF> or a starting "1" bit when the
rxspoh_stat block is trying to locate the start of the message. Software also specifies the number (3 or 5) of
consecutive consistent section trace messages that must be observed before it is accepted.
An interrupt is generated when a new section trace message is accepted as valid. The valid section trace
message is compared with an expected section trace message downloaded to memory by software. A J1
mismatch (J0_MIS) flag is raised if the 2 messages are not identical. The rxspoh_stat block also implements a
J1 unstable counter. The J1 unstable counter is incremented for each byte that differs from the previously
60
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
received byte. An invalid J1 condition is declared when the J1 unstable counter reaches 8. The J1 unstable
counter is cleared to 0 when a valid J0 is accepted.
The SDH receive path trace buffers use a 128x8 single port memory and a 64x8 single port memory as in the
case of the SDH receive section trace buffers.
8’h00
8’h00
J1 current valid
message
buffer
J1 current
expected message
buffer
8’h3F
8’h3F
8’h40
J1 previous
received message
buffer
8’h7F
DOWNSTREAM AIS INSERTION CONTROL
The rxspoh_stat block can be configured to cause downstream AIS insertion to the cell processor when any of
the following conditions are detected: AIS-P, LOP-P, TIM-P, J1 unstable, PLM-P, UNEQ-P and C2 unstable.
Downstream AIS insertion to the cell processor is done by sending all ones in all the extracted payload bytes.
The software can enable or disable the insertion of path AIS to the cell processor on detection of any of the
aforementioned conditions. If AIS insertion is necessary, then an enable signal to the rxspoh_proc block is
activated which causes the rxspoh_proc block to insert all ones in the payload bytes on the 'rbyte' port to the
VT Mapper cell processor.
61
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
RXSPOH_CAP BLOCK
The rxspoh_cap block captures the contents of the path overhead and stores them for access by the external
processor. The nine path overhead bytes are stored in registers. The rxspoh_cap block issues an interrupt
once all the path overhead bytes (9 bytes) for the current frame have been captured. When the last path
overhead byte of the current frame has been written to its register, an interrupt is raised to notify the software.
The contents of the captured path overhead bytes are preserved for one frame (i.e., until the next capture
interrupt) for access by the software.
The captured path overhead bytes are serialized and sent as outputs from the chip as shown in Figure 22.
RxOHFRAME, RxOH, and RxOHVALID are updated on the falling edge of RxOHCLK. The rate of RxOHCLK is
programmable in the range from 1.215MHz to 38.88MHz.
FIGURE 22. PATH OVERHEAD INTERFACE TIMING
Path Overhead: clock and signal bits
RxOHCLK
RxOHFRAME
J1 J1 J1 J1 J1 J1 J1 J1
RxOH
B3 B3 B3 B3 B3 B3 B3 B3
3
RxOHVALID
Note: RxPOH_IND is high for POH drop-off
The most significant bit is transmitted first
Path Overhead: clock and signal bytes
RxOHCLK
RxOHFRAME
RxOH
J1
B3
C2
G1
RxOHVALID
62
F2
H4
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
STM-0/1 TRANSMIT TRANSPORT PROCESSOR
TXSTOH_INS BLOCK
The txstoh_ins block provides a serial port for hardware insertion of the transport overhead bytes. The
hardware inserted SDH OH bytes, if enabled, override the contents of the SDH OH software registers during
transmission. The hardware inserted SDH OH bytes are forwarded to the txstoh_cont block along with the
enable signal. The SDH OH port also has an enable input which allows hardware to override the contents of
the SDH OH software registers without going through the processor interface. The following picture shows the
transport overhead J0 byte being enabled. The TxOHFRAME and TxOHEN signals are updated on the falling
edge of TxOHCLK while the TxOHINS and TxOH signals are sampled on the second rising edge of TxOHCLK
following the assertion of TxOHEN.
The rate of TxOHCLK is programmable within the range from 2.43 MHz to 38.88 MHz.
FIGURE 23. TRANSMIT TRANSPORT OVERHEAD INTERFACE TIMING
Transmit SDH Overhead: clock and data bits
TxOHCLK
TxOHFRAME
TxPOH_IND
TxOHEN
TxOH
A1 A1 A1 A1 A1 A1 A1 A1 A2 A2 A2 A2 A2 A2 A2 A2 J0 J0 J0 J0 J0 J0 J0 J0
MSB
LSB
NOTE: TxPOH_IND is low for SDH OH insertion.
The data and enable are latched in on the falling edge of TxOHCLK at the end of the data period
63
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
HARDWARE RDI-L INSERTION
Hardware can enable RDI-L insertion by setting the most significant bit of the B2 byte to "1" on the TTOH serial
input line. Note that software must first enable hardware RDI-L insertion. The state of the TTOHIns pin has no
effect during the B2 slots.
TXSTOH_CONT BLOCK
The txstoh_proc has one 8 bit internal data bus interface. The txstoh_cont block provides the register file and
internal processor interface for the transport section of the SDH transmitter. It selects the value of the transport
overhead bytes from either hardware or software according to the control registers and forwards them to the
txstoh_proc block for transmission. The hardware value is specified through a parallel data input port. If the
transport overhead bytes are serially entered into the chip, it is assumed that a serial to parallel data converter
has converted the data to parallel format and has placed the data on the input of the txstoh_cont block at the
appropriate instances during transmission. The txstoh_cont also provides control for the transmission of a
section trace message (J0 byte).
A1/A2 GENERATION
The txstoh_cont block generates alternate A1 and A2 values based on hardware or software requests and
sends them to the txstoh_proc block via the tx_toh_data lines. The txstoh_cont block accepts A1/A2 values
from the hardware input, or alternatively, software can specify an error mask indicating the A1/A2 bytes in
which errors should be inserted for diagnostic purposes. A1/A2 errors are always inserted on frame
boundaries, i.e., the A1/A2 error mask is only sampled at the start of every frame.
B1 ERROR MASK GENERATION
The txstoh_cont block allows software to insert errors into the B1 value calculated and transmitted by the
txstoh_proc block. By writing to an appropriate register bit, a software controlled error mask is used to insert
errors into the B1 byte.
B2 ERROR MASK GENERATION
The txstoh_cont block allows software to control B2 BER generation through two registers: A byte error mask
register and a bit error mask register. The byte error mask specifies which of the B2 bytes are to be corrupted
and the bit error mask specifies which bits are to be inverted in the B2 bytes that are to be corrupted. In the
case of an 8 bit internal data bus, each bit in the B2 byte error mask corresponds to 4 bytes (i.e., one time slot).
The B2 byte and bit error masks are sampled before the first B2 byte of each frame if B2 error insertion is
enabled by software.
SCRAMBLING
The txstoh_cont block allows software to disable scrambling by setting a bit in the control register. Otherwise,
the SDH data is scrambled using the identical algorithm as the de-scrambling process.
K1/K2 CONTROL
The K1/K2 bytes contain the APS code. The APS code transmitted either come from software registers or from
hardware via the TxOH serial pin. Note that the 3 least significant bits of the K2 byte (bits 6, 7 and 8) may be
overridden by an RDI-L alarm.
RDI-L CONTROL (K2 BITS 6, 7, AND 8)
The RDI-L indication bits consist of the 3 least significant bits of the K2 byte. The bits usually contain portions
of the transmitted APS code. However, they are overridden with the RDI-L pattern 3'b110 if any of the following
software configurable conditions occur: LOS, LOF, or AIS-L. RDI-L can also be inserted from hardware via the
TxOH serial pin or forced by software. RDI-L insertion is done according to the following SDH rules:
■
TE shall generate RDI-L within 125µs of detecting an AIS-L defect (or a lower-layer, traffic-related, nearend defect). The LTE shall generate RDI-L by inserting the code '110' in bits 6, 7, and 8 of the K2 byte.
The lower-layer, traffic-related, near-end defects referred to by R6-200 are LOS and LOF from the receiver
blocks.
64
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
■
If bits 6 through 8 of the K2 byte are not used for other purposes (e.g., the linear APS mode indication),
the LTE shall deactivate RDI-L by inserting the code '000' in bits 6, 7, and 8 of the K2 byte within 125µs
of terminating the defect that caused it.
■
If bits 6 through 8 of the K2 byte are used for other purposes, the LTE shall deactivate RDI-L by inserting
an appropriate code in bits 6, 7, and 8 of the K2 byte within 125µs of terminating the defect that caused
it to be sent (assuming it has been sent for any minimum RDI-L assertion time supported by the NE).
■
When LTE generates RDI-L, it should generate it for at least 20 frames.
SECTION TRACE GENERATION (J0/Z0)
The txstoh_cont block allows three methods in the transmission of the J0/Z0 bytes:
Method 1: The J0 byte is set to all 1 in accordance with the SDH standard rule.
• Unless it is being used for a defined purpose (e.g., to carry a section trace message once the details of that
feature are defined) each J0 and Z0 byte shall be set to a binary number corresponding to its order of
appearance in the STM-N frame (i.e., the J0 byte shall be set to 00000001, the first Z0 byte shall be set to
00000010, etc.).
Method 2: The J1 byte is obtained from the hardware input
Method 3: The J1 byte is obtained from the message written by software into the J1 message buffer
Method 1 is the default unless the software control specifies otherwise. The Z0 bytes are always generated
according to the above rules.
The section trace (J0) transmit buffers use a 64x8 single port ram as in the case of the path trace transmit
buffers. The memory segments contain the J0 section trace buffers and operate in the same way as the J1
transmit path trace buffers.
REI-L GENERATION (M0/M1)
The txstoh_cont block allows three methods in the transmission of the M0/M1 bytes:
Method 1 : The REI-L signal is set according to the B2 error count by the receiver blocks from the most
recently received frame
Method 2 : The REI-L signal is obtained from the hardware input
Method 3 : The REI-L signal is obtained from software
Method 1 is the default unless software chooses to enable either method 2 or 3.
S1/F1/E1/E2 SELECTION
The txstoh_cont block allows either hardware or software insertion of the S1, F1, E1, and E2 bytes. The default
generation method for the S1 byte is reading from the software registers. The default generation method for
the E1, F1, and E2 bytes is hardware insertion. The registers contain all zeros upon reset.
DATACOM (D1-D12) SELECTION
The data communication bytes are inserted via hardware only.
UNDEFINED SDH OH BYTES
The remaining bytes of the STM-N transport overhead are all currently undefined. The txstoh_cont block
inserts all zeros in those bytes in accordance with the SDH standard.
■
An SDH NE shall have the capability to ignore the values contained in all undefined and unused bits and
bytes [except for BIP-8 calculations] to prevent misinterpretation of the received patterns.
■
An SDH NE should send an all-zeros pattern (before scrambling) in undefined bits and bytes. All-zero
patterns should also be sent in defined bits and bytes if the NE does not support the defined function or
if the function has been disabled by the user.
65
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
AIS-L CONTROL
The txstoh_cont provides AIS-L insertion capabilities according to the SDH standard:
■
STE shall generate AIS-L downstream within 125µs of detecting an LOS or LOF defect on the incoming
signal or the failure of LTE supporting provisioned line origination functions. The AIS-L shall be
generated as an STM-N electrical signal that contains valid section overhead and a scrambled all-ones
pattern for the remainder of the signal.
The txstoh_cont allows software to insert an AIS-L condition on the transmitted data by writing to an
appropriate bit in the register file. The AIS-L condition is set/unset on frame boundaries. AIS-L insertion
overrides all other frame data insertion schemes with the exception of LOS insertion.
LOS INSERTION
The txstoh_cont block allows software to specify an LOS condition on the transmitted data which sets all data
bytes to zero after scrambling. LOS insertion is enabled by writing a "1" to the appropriate register file bit. LOS
insertion, if specified, overrides all other transmit frame data insertion schemes.
TXSTOH_PROC BLOCK
The txstoh_proc has one 8 bit internal data bus interface. The txstoh_proc multiplexes transport overhead data
from the txstoh_cont block and SPE data from the txspoh_proc block and inserts them into the data stream.
The txstoh_proc block generates timing and location signals for the other transmitter blocks and performs
primitive SDH tasks such as scrambling, B1/B2 calculation and insertion, and start of frame (A1/A2) insertion
using control signals from the txstoh_cont block.
LOCATION STROBE GENERATION
The txstoh_proc block maintains the location of the current byte (byte lanes) being transmitted and outputs
time-advanced row, column, and time slot numbers of the data on the byte lane(s) for the other SDH
transmitter blocks. The time-advanced location signals allow for pipeline delays necessary to move the data
from the other transmit blocks to the txstoh_proc block.
A1/A2 INSERTION
During normal operation, the txstoh_proc block inserts the SDH framing pattern F628 (hex) for the A1 and A2
bytes respectively. This can be overridden by non-zero values from the tx_toh_data input from the txstoh_cont
block at the time of insertion.
B1 CALCULATION AND INSERTION
The txstoh_proc block calculates the BIP-8 B1 error code on the scrambled data of the current frame and
inserts it into the B1 byte of the next frame before scrambling. Errors can be inserted for diagnostic purposes
from the tx_toh_data input from the txstoh_proc block.
B2 CALCULATION AND INSERTION
The txstoh_proc block calculates the BIP-8 B2 error code on the unscrambled data of the current frame except
for the section overhead bytes and inserts it into the B2 bytes of the next frame before scrambling. Errors can
be inserted for diagnostic purposes from the tx_toh_data input from the txstoh_proc block.
Two memories are used in the B2 error code calculations for the txstoh_proc block. One memory is used to
store the running value of the B2 error calculations. This memory is a 12x8 dual port RAM with one port for
reads and one port for writes. This is necessary because as the hardware is calculating the B2 code for each
STS, it needs to store the new value into the memory and at the same time fetch the current code for the next
STS from memory. The second memory is a single port 12x8 RAM used to store the final B2 codes for all the
STS's. This memory is read at the B2 byte locations for comparisons and written into in the A1 byte locations to
store the final B2 codes for the previous frame. For the 8 bit version of the rxstoh_proc block, the B2 RAM
widths are 8 bits.
66
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
SCRAMBLING
The txstoh_proc block scrambles all the bytes of the SDH frame except for the A1, A2, and J0/Z0 bytes.
Scrambling may be disabled by software. Scrambling is controlled on frame boundaries. That is, the
txstoh_proc block will sample the scram_enable input at the beginning of each frame and scrambling is
performed on the entire frame if the scram_enable is "High".
SDH OH DATA INSERTION
For the rest of the SDH OH bytes, the txstoh_proc simply takes the data on the TxOH input at the time of
transmission, and inserts it into the corresponding location in the SDH frame. The SDH OH bytes intended to
be inserted in this manner are: M0/M1, J0, S1, K1, K2, F1, E1, E2, the data communication bytes (D1-D12)
and the undefined and growth bytes.
SPE DATA INSERTION
The txspoh_proc block places SPE data on the tx_path_data input of the txstoh_proc according to the location
signals generated by the txstoh_proc block. The txstoh_proc takes the SPE data and inserts it into the transmit
SDH frame at the appropriate instances in time.
AIS-L/LOS INSERTION
The txstoh_proc can apply either an AIS-L or a LOS condition as described in previous sections according to
control signals from the txstoh_cont block.
67
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
4.9
TELECOM BUS INTERFACE
The device's Telecom Bus interface supports the following features:
Option to enable/disable parity generation.
Option to select if parity is generated over data only or data and PL and C1J1 and Alarm signals.
Option to select if odd or even parity is used.
Accepts 8 kHz transmit frame pulse and complementary transmit reference clock to synchronize transmit data.
4.9.1
TRANSMIT TELECOM BUS
The Tansmit Telecom Bus interface consists of the following outputs: 8-bit data bus TxD_D[7:0], clock
TxD_CLK, payload indication TxD_PL, timing indication TxD_C1J1V1_FP, parity TxD_DP, and a alarm
indication TxD_ALARM. The device also allows a common set of reference timing signals for synchronizing the
data input to each of the Telecom Bus ports for the cases where transmit re-phase is not available on the other
side. The Telecom Bus port operates at 19.44 MHz on STM-1 and 6.28 Mhz on STM-0.
The subsections below summarize the functionality of the Telecom Bus interface signals. Tx51_19Mhz is
provided as a reference clock to put data out onto the Telecom Bus ports. These signals are 19.44/6.28 MHz.
This clock must be used to source the data to be transmitted on the appropriate Telecom Bus.
An 8kHz pulse (TxSBFP_IN_OUT) is input on the falling edge of Tx51_19Mhz once every frame period and is
one Tx51_19Mhz clock cycle wide. It is used to synchronize the data arriving at the TxD_D[7:0] outputs. A 16bit latency counter can be configured to determine the latency between the frame pulse and the associated
input data (C1). Figure 24 shows the relationship between the Input Telecom Bus Data and the
TxSBFP_IN_OUT signal.
FIGURE 24. TRANSMIT TELECOM BUS INTERFACE TIMING
TXREFCLK
C1 pulse
TXSBFP
Latency N = 5
TxA_CK
TxA_CK
(inverted)
TxA_D[7:0]
A1
A1
A1
A2
A2
A2
C1
C1
C1
J1
TxA_PL
C1 pulse
J1 pulse
TxA_C1J1
The transmit Telecom Bus clock output (TxD_CLK) is used to clock the transmit Telecom Bus output signals. It
must be synchronous with the Tx51_19Mhz clock. Also, no phase relationship is required between
Tx51_19Mhz and the TxD_CLK. The TxD_D[7:0] stream must contain valid Pointer Bytes and the POH.
The Telecom Bus also generates the value of the transmit Telecom Bus parity output (TxD_DP). The parity
calculations can be configured through the use of the control bits in the interface control registers. The
68
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
transmit Telecom Bus Alarm output (TxA_Alarm) is generated to tell the external device to generate AIS-P in
the STM-0/STM-1 for which the alarm occurs.
4.9.2
2kHz Mode in STM-1
To align the V1 bytes with H4 in STM-1, the part must be configured for 2kHz. With a 2kHz frame pulse applied
to each of the Voyager Lite devices, the parts can align VT Superframe boundaries. This will allow V1 bytes
within each device to match one another. The TxD_C1J1V1_FP will pulse "High" for all C1J1 bytes. However,
it will only pulse "High" during the V1 byte. V2, V3, and V4 will not be indicated by the external frame pulse.
FIGURE 25. C1J1V1 PULSE IN STM-1 2KHZ MODE
2kHz FP
TxD_C1J1V1_FP
4.9.3
C1 J1 V1
C1 J1
C1 J1
C1 J1
C1 J1 V1
RECEIVE TELECOM BUS
The receive Telecom Bus interface consists of the following inputs: 8-bit data bus RxD_D[7:0], clock
(RxD_CLK), SPE indication (RxD_PL), C1J1 indication (RxD_C1J1V1_FP), parity (RxD_DP), and a alarm
indication (RxD_ALARM). All of the receive Telecom Bus ports operate at 19.44/6.28 MHz.
The subsections below summarize the functionality of the receive Telecom Bus interface signals. The receive
Telecom Bus clock input RxD_CLK is used to clock in the receive Telecom Bus input signals from an external
device. Figure 26 shows the functional relationship of the receive Telecom Bus signals.
FIGURE 26. RECEIVE TELECOM BUS INTERFACE TIMING
Each receive Telecom Bus port has an 8-bit wide data bus that inputs the STM-0/STM-1 data from an external
device. The receive Telecom Bus data is byte-aligned and the entire payload, including SDH OH and POH, is
passed in the device. The receive Telecom Bus C1J1 input (RxD_C1J1V1_FP) can be provisioned to provide
two different types of indications, depending on the register setting. When CPOS is set to "1", the
corresponding RxD_C1J1V1_FP signal provides two pulses.
For all sub-frames, the receive Telecom Bus PL input (RxD_PL) is "Low" during the SDH OH bytes in the
RxD_D[7:0] stream and is "High" during the SPE bytes. This includes cases where pointer adjustments are
performed and the SPE needs to be adjusted about the H3 bytes. For example, the H3 bytes are payload bytes
during the frame in which a pointer decrement occurs, therefore the RxD_PL signal will be "High" coincident
with the H3 bytes for that frame. Also in the frame where a pointer increment occurs, the three bytes after the
H3 bytes become stuff, therefore the RxD_PL signal will be "Low" for those bytes. The parity checking can be
configured through the use of the control bits in the interface control registers.
69
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
The receive Telecom Bus alarm output (RxD_ALARM) is generated by an external device in response to an
alarm condition that will cause AIS-P to be generated. The RxD_ALARM input will remain active for the
duration of the alarm condition that causes it to become set.
70
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
4.10
REV. 1.0.1
VT MAPPER
INTERFACES AND PROTOCOLS
This block has three interfaces to the outside world:
The Internal Bus interface through which the block communicates with the µP interface block which interfaces
to the external processor that controls and monitors the VT Mapper.
The Mid Bus interface through which the block communicates with the blocks processing the higher levels of
SDH overhead.
The E1 I/O interface up to 21 digital signals.
INTERNAL BUS INTERFACE
Figure 27 shows the internal synchronous bus structure. It consists of two 8-bit data buses, an 8-bit address
bus, and 5 control lines: clock (clk), select (sel), read (read), data transfer acknowledge (dtack), and interrupt
request (irq). All of these lines are active High.
FIGURE 27. INTERNAL BUS STRUCTURE
(master)
MicroProcessor
Bus
sel
addr [7:0]
read
address
decoder
hi
low
...
wdata[7:0]
rdata[7:0]
dtack
irq
OR
OR
Slave Block 0
Byte-oriented addressing is used for all of the address maps.
71
Slave Block 1
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
Internal Bus Signals
Signals and their usage are described. Clk, Sel and Read are driven high or low by the pif block, based on the
Clk, Chip Select, and WE signals from the microprocessor. irq and dtack are low or high driven by internal
registers. addr, rdata and wdata may be undefined as long as no read or write action is taken. All signals are
Clk aligned and sensitive to the positive edge of Clk.
SIGNAL
DIRECTION
DESCRIPTION
Clk
input
System clock signal, input from external processor
Sel
input
Select signal, when it goes high, selects internal register
Read
input
Read/write control signalHIGH: read data from data bus.LOW: Write data to data bus.
Dtack
output
addr[7:0]
input
Irq
output
Interrupt request signal when it goes to 1 indicates an interrupt request.
rdata[7:0]
output
Reads data signals from internal register.
wdata[7:0]
input
Data transfer acknowledge signal, comes from internal registers, indicate internal registers are ready to send or accept data.
Register address.
Write Data signals to internal register.
72
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
MID BUS INTERFACE
The interface between the VTM and the other SDH blocks is a single edge synchronous interface. It consists of
a clock, enable pair, and an 8-bit data bus in each direction. The enable signals are active High and data is
transferred on the rising edge of the corresponding clock.
FIGURE 28. MID BUS INTERFACE
tx b y te [7 :0 ]
tx c lk
tx b y te _ e n
tx s o s
SD H
B lo c k s
VTM
r x b y te [7 :0 ]
r x c lk
r x b y te _ e n
rxso s
SDH to VTM Direction
In this direction, the higher level SDH block is sending data to the VT Mapper. Data presented on the
rxbyte[7:0] data bus of the VTM by the SDH block must be valid to be sampled on the rising edge of rxclk when
rxbyte_en is "High". The VTM block samples the rxbyte_en and rxbyte[7:0] lines on each rising edge of rxclk. If
rxbyte_en is "High", the data on rxbyte[7:0] is processed as valid data. The transitions on the rxbyte[7:0] and
rxbyte_en lines should be timed to satisfy the VTM's setup & hold requirements with respect to rxclk.
For all timing diagrams in this section, it is implied that the data lines can change at every clock cycle. Only
when the nature of the data carried on the data lines changes is there a boundary shown on the data line.
FIGURE 29. SDH TO VTM DATA TRANSFER WITH ZERO POINTER OFFSET
rxclk
toh bytes + poh byte
rxbyte
payload bytes
toh bytes + poh byte
V1
rxbyte_en
rxsos
The Start of Superframe signal is asserted while the first V1 byte of the Superframe is present on rxbyte.
73
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
VTM to SDH Direction
When the SDH block is receiving data from the VTM, txbyte_en is used as a command signal. When the SDH
block asserts txbyte_en "High", data from the VTM is produced on the next rising txclk edge. Figure 30 gives
an example of such a transaction. Transitions of lines txbyte[7:0] and txsos occur on the rising edge of txclk so
setup time requirements of up to one txclk period can be satisfied. It is up to the interface designer to make
sure that the other timing requirements of circuits connected to the VTM are satisfied.
FIGURE 30. VTM TO SDH DATA TRANSFER
txclk
txbyte_en
txsos
txbyte
V1
valid bytes from VTM
Although a minimum of buffering is done at the VTM Mid Bus output to compensate for the jitter introduced by
the transport and path overhead columns (SDH OH & POH), it is assumed and required that txbyte_en and
txclk clock ticks will occur at an average frequency of 6.192MHz (i.e. 6.48MHz txclk with a 86:90 enable ratio)
and will be approximately equally spaced (burst reads are not supported).
74
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
FIGURE 31. E1 INTERFACE TIMING (INTERNAL TO THE CHIP)
clk
sel
rbenab
read
addr
X
wdata
X
valid
X
valid
X
dtack
FIGURE 32. E1 INTERFACE TIMING (E1 SYNCHRONOUS MAPPING, INTERNAL TO THE CHIP)
clk
sel
rbenab
read
addr
X
wdata
X
valid
X
valid
X
dtack
75
REV. 1.0.1
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
DESIGN DESCRIPTION
The function of this reusable block is limited to the construction and extraction of the VT structured content of
the SDH STM-0 Payload Capacity / SDH VC-3 as described by Telcordia's GR-253-CORE Generic
Requirements and ITU-T's G.707 recommendations. The rest of the work for the higher levels of hierarchy
including Transport and Path Overhead is handled by the STM-0 SDH blocks.
VT STRUCTURED STM-0 PAYLOAD CAPACITY
This section briefly describes the structure of the SDH data stream used to carry lower bit-rate channels. The
STM-0 Payload Capacity is made up of 84 columns of 9 rows each. The Payload Capacity is divided equally
amongst seven Groups. Each Group can contain three VT2/TU-12 tributaries. VT2/TU-12 tributaries are used
to carry an E1 signal.
VT Superframe
Four consecutive STM-0 frames of Payload Capacity are used to make up a VT Superframe. The first byte of
each Tributary in each frame has a special function. These special bytes are called V1 to V4.
V1 & V2 : VT Payload Pointer
The V1 and V2 bytes form the VT Payload Pointer. In asynchronous mappings or on transmission, the VT
Payload Pointer is assigned a fixed value by this block such that the V5, J2, Z6/N2 and Z7/K4 bytes
immediately follow the V1 to V4 bytes. In synchronous mappings or on reception, the VT Payload Pointer is
processed as prescribed in Telcordia and ITU. Each time a received VT Payload Pointer is incremented or
decremented, internal counters are available to be read by the processor in registers BIP2CNT1 to
BIP2CNT21 and REICNT1 to REICNT21 are incremented.
V3 : VT Pointer Action Byte
This byte is used as a negative stuff byte when required by a pointer decrement. Otherwise, it is Undefined. It
is never used by this block on transmission of asynchronously mapped signals. In synchronous mappings or
on reception, this byte is processed along with the VT Payload Pointer bytes as prescribed in the Telcordia and
ITU documents.
V4 : Undefined
This byte is reserved for future growth and is treated as Undefined. It is ignored on reception and is transmitted
as all zeros.
VT Path Overhead
Each Virtual Tributary has it's own set of Path Overhead bytes which are processed as described in the
following paragraphs.
V5 : VT Path Error Checking, Signal Label and Path Status
The bit assignments for the V5 byte are shown in Table 7.
TABLE 7: V5 - VT PATH ERROR CHECKING, SIGNAL LABEL AND PATH STATUS
7 (MSB)
6
BIP-2
5
4
REI-V
RFI-V
3
2
Signal Label
1
0 (LSB)
RDI-V
Bits [7:6] of V5 are used for error performance monitoring. A BIP-2 scheme is defined as follows. When
generating a tributary, bit 7 is set to the exclusive-or of all the odd numbered bits (bits 7,5,3 and 1) of the
previous VT SPE (including the V5, J2, Z6/N2 or Z7/K4 byte but not the V1 to V4 bytes, except V3 when it is
used as a negative stuff byte), bit 6 is set to the exclusive-or of all the even numbered bits (bits 6, 4, 2 and 0) of
the previous VT SPE. When terminating a tributary, bit 7 is compared to the exclusive-or of all the odd
numbered bits of the previous VT SPE, bit 6 is compared to the exclusive-or of all the even numbered bits of
the previous VT SPE. If there is any difference, bit 5 of V5 (REI-V) of the peer tributary generator is set to "1",
76
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
otherwise it is set to "0". Detected errors are tallied in the BIP2CNTx counters that can be read by the
processor in registers BIP2CNT1 to BIP2CNT21
Bit 4 of V5 is used for VT Path Remote Failure Indication (RFI-V). As described in GR-253-CORE, when
automatic RFI-V insertion is enabled by writing "1" to bit VTRFIEN of registers INS1 to INS21, RFI-V will be
signalled by inserting a "1" in the RFI-V bit of byte V5 when LOP-V, AIS-V, UNEQ-V or PLM-V is detected for
more than 2½±½ seconds on the received tributary in the corresponding time slot. The RFI-V signalling is
removed, and bit RFI-V of byte V5 is cleared if the condition that triggered it is absent for 10±½ seconds.
Bits [3:1] of V5 are used for VT Path Signal Label and indicate the contents of the tributary. Only the following
codes are generated by the tributary generator or expected by the VT PTE:
000 : Unequipped or not provisioned
010 : Asynchronous Mapping of E1
100 : Byte Synchronous Mapping E1
Bit 0 of V5 is used for one-bit VT Path Remote Defect Indication (RDI-V) As described in GR-253-CORE.
When automatic RDI-V insertion is enabled by writing "1" to bit VTRDIEN of registers INS1 to INS21, RDI-V will
be signalled by inserting a "1" in the RDI-V bit of byte V5 when LOP-V, AIS-V, UNEQ-V or PLM-V is detected
on the received tributary in the corresponding time slot.
VC-12 Path Remote Loopback Signaling
Voyager-lite supports in-band signaling within the low-order VC-12 path overhead to request VC-12 path
remote loopback (E1 payloads) provisioning at down-stream equipment. Signaling will be sent on the STM-1
transmit output from the request originating system (sending system) and received on the STM-1 input of the
far-end system (receiving system). Once the receiving system detects this in-band message, a status flag is
set to indicate the remote loopback request detection. The system software will detect this flag through
interrupts and subsequently provision the appropriate low-order path for remote loopback. The sending
system shall continue sending the in-band message until such time that the remote loopback should be
removed. At this time, the VC-12 Path Overhead/Payload content within the STM-1 transmit output of the
sending system shall resume normal function. Upon detecting termination of the remote loopback request, the
receiving equipment shall set a status flag to indicate the clearance of the remote loopback request. The
system software can detect this flag and subsequently remove the remote loopback provisioning for the
appropriate low-order path. This function is provided on a per VC-12 basis.
The LSB of the bit stuff byte immediately following V5 is used as the location for the remote loopback request
messaging. During normal operation, this bit will contain the usual stuff bits. However, during remote loopback
request transmission, this bit shall transmit a continuous, alternating pattern of 1’s and 0’s. The pattern shall
always begin with a "1" and terminate immediately upon release of the software control bit for the remote
loopback request enable. The receiving equipment shall monitor this bit location for the pattern of
"1010101010", or exactly ten bits of alternating 1's and 0's with the first bit having a value of "1". Once the
stated pattern is detected, the receiver sets a status flag indicating detection of the remote loopback request.
This bit should be reset upon read and should not be set again until clearance of the remote loopback request
is detected, and a new remote loopback request message is received.
Detection and cancellation examples:
J2 : VT Path Trace
Byte J2 is used to transmit repetitively a Low Order Path Access Point Identifier so that a path receiving
terminal can verify its continued connection to the intended transmitter. The Path Access Point Identifier
supports both 16-byte and 64-byte frame as the J0 byte defined in the earlier section.
The 64 byte RAM is used on a shared basis with J2 and N2 bytes. When the 64 byte J2 message mode is
configured, the N2 tandem connection feature is disabled. When the J2 message mode is configured as 16
byte, two 16 byte segments are used for TC (tandem connection) and J2.
77
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
Z6/N2 : VT PATH GROWTH (TANDEM CONNECTION, TC)
N2 is allocated for Tandem Connection Monitoring for the VC2, VC-12 and VC-11 level. The structure of the N2
byte is given in Table 8.
• Bits 1-2 are used as an even BIP-2 for the Tandem Connection.
• Bit 3 is fixed to "1". This guarantees that the contents of N2 are not all zeroes at the TC source. This enables
the detection of an unequipped or supervisory unequipped signal at the Tandem Connection sink without the
need for monitoring further OH-bytes.
• Bit 4 operates as an "incoming AIS" indicator.
• Bit 5 operates as the TC-REI of the Tandem Connection to indicate errored blocks caused within the Tandem
Connection.
• Bit 6 operates as the OEI to indicate errored blocks of the egressing VC-n.
• Bits 7-8 operate in a 76 multiframe as:
■
the access point identifier of the Tandem Connection (TC-APId); it complies with the generic 16-byte
string format of J0;
■
the TC-RDI, indicates to the far end that defects have been detected within the Tandem Connection at
the near end Tandem Connection sink; An 8-bit ounter is provided for counting the number of REI bits
received as 1 in bit 5 of N2. An REI indicates that the distant end has detected one or two errors
between the BIP-2 calculation of the previous frame (all the bytes) and the BIP-2 value carried in the N2
byte in the current frame.
■
the ODI, indicates to the far end that TU-AIS has been inserted at the TC-sink into the egressing TU-n
due to defects before or within the Tandem Connection; An 8-bit counter is provided for counting the
number of OEI bits received as equal to 1 in bit 6 of N2. An OEI indication (a1) indicates that the distant
end has detected one or two errors when, the BIP-2 calculated for the previous frame is compared
against the BIP-2 value carried in the V5 byte in the current frame.
■
reserved capacity (for future standardization).
■
The structure of the multiframe is given in Table 9 and Table 10.
TCM Functionality - Source
• If no valid TU-n is entering the Tandem Connection at the TC-source, a valid pointer is inserted. This results
in a VC-AIS signal and bit 4 is set to "1". Even BIP-2 parity is calculated over the inserted VC-AIS signal and
written into bits 1-2 of N2.
• If a valid TU-n is entering the Tandem Connection at the TC source, then even BIP-2 parity is calculated over
the incoming valid VC-n or the inserted VC-AIS signal and written into bits 1-2 of N2.
■
The bits TC-REI, TC-RDI, OEI, ODI are set to "1" if the corresponding anomaly or defect is detected at
the associated TC-sink of the reverse direction.
■
The original BIP-2 is compensated according to the algorithm described below.
NOTE: In an unequipped or supervisory unequipped signal entering a Tandem Connection, the N2 and V5 bytes are
overwritten with values not equal to all zeroes.
TABLE 8: N2 BYTE STRUCTURE
B1
B2
BIP-2
B3
B4
B5
B6
"1"
"Incoming AIS"
TC-REI
OEI
78
B7
B8
TC-APId, TC-RDI ODI, reserved
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 9: B7-B8 MULTIFRAME STRUCTURE
FRAME #
B7-B8 DEFINITION
1-8
Frame Alignment Signal: 1111 1111 1111 1110
9-12
TC-APId byte #1 [ 1 C1C2C3C4C5C6C7]
13-16
TC-APId byte #2 [ 0 X X X X X X X ]
17-20
TC-APId byte #3 [ 0 X X X X X X X ]
:
:
:
:
:
:
65-68
TC-APId byte #15 [ 0 X X X X X X X ]
69-72
TC-APId byte #16 [ 0 X X X X X X X ]
73-76
TC-RDI, ODI and Reserved
TABLE 10: STRUCTURE OF FRAMES # 73 - 76 OF THE B7-B8 MULTIFRAME
TC-RDI, ODI AND RESERVED CAPACITY
FRAME #
B7 DEFINITION
B8 DEFINITION
73
Reserved (default = "0")
TC-RDI
74
ODI
Reserved (default = "0")
75
Reserved (default = "0")
Reserved (default = "0")
76
Reserved (default = "0")
Reserved (default = "0")
TCM FUNCTIONALITY - SINK
If no valid TU-n is present at the TC-sink, a defect caused within the Tandem Connection is stated and the TCRDI and ODI conditions apply.
If a valid TU-n is present at the TC-sink, the N2 byte is monitored:
• ·An "all-zeroes" N1-byte indicates a miss or disconnection within the Tandem Connection. In this case, the
TC-RDI and ODI-bits are set to "1" in the reverse direction and TU-AIS is inserted in the egressing TU-n.
• Bit 4 of the received N2 is set to "1" to indicate that a defect has already occurred before the Tandem
Connection. In this case, the ODI bit is set to "1" in the reverse direction and TU-AIS is inserted in the
egressing TU-n.
• The multiframe in bits 7 and 8 is recovered and the contents are interpreted. If the multiframe cannot be
found, the TC-RDI and ODI bits are set to "1" in the reverse direction and TU-AIS is inserted in the egressing
TU-n.
• The TC-APId is recovered and compared with the expected TC-APId. In the case of a mismatch, the TC-RDI
and ODI bits are set to "1" in the reverse direction and TU-AIS is inserted in the egressing TU-n.
The even BIP-2 is computed for each bit pair of every byte of the preceding VC-n including V5 and compared
with the BIP-2 retrieved from the V5 byte. A difference not equal to zero indicates that the VC-n has been
corrupted and, then the OEI bit is set to "1" in the reverse direction. Furthermore the actual BIP-2 is compared
79
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
with the BIP-2 retrieved from the N2-byte. A difference not equal to zero indicates that the VC-n has been
corrupted within the Tandem Connection and, then the TC-REI is set to "1" in the reverse direction.
If TU-AIS is not inserted at the Tandem Connection sink, then the N2-Byte is set to all zeroes and the BIP is
compensated according to the algorithm described below.
Multiframe Generation and Synchronization
Loss of multiframe occurs when two consecutive Frame Alignment Signals (1111 1111 1111 1110) are detected
in error (i.e., one or more errors in each FAS). Multiframe alignment is recovered when one consecutive nonerrored FAS are found. Two status bits are used to indicate the Loss Of MultiFrame (TXAnLOMF,
RXDnLOMF).
The TC trace identifier message comparison is based on the same state machine as that used for the 16-byte
J2 message. The TC lock is removed (instable, INV) when 3 messages are received in error and the TC_INV
alarm is declared. The TC lock is established when 3 valid, identical messages are received. A comparison is
performed between the microprocessor-written TC and the contents of the incoming message. The message
consists of TC Trace ID bytes 0 to 15. A TC Trace Identifier Mismatch (TC_MIS) alarm is declared when any
byte does not match. Recovery occurs when there is a match between the expected message and the
accepted message.
Bit 8 in frame 73 is defined as a Tandem Connection Remote Defect Indication (TC RDI). A TC RDI alarm
occurs when a "1" has been detected in bit 8 in frame 73 for five consecutive multiframes (where each
multiframe is 38 ms). The TC RDI alarm state is exited when bit 8 is equal to 0 for five consecutive multiframes.
An alarm indication is reported as TC_RDI.
Bit 7 in frame 74 is defined as a Tandem Connection Outgoing Defect Indication (TC ODI). A TC ODI alarm
occurs when a "1" has been detected in bit 7 in frame 74 for five consecutive multiframes (where each
multiframe is 38 ms). The TC ODI alarm state is exited when bit 7 is equal to 0 for five consecutive multiframes.
An alarm indication is reported as TC_ODI.
Tandem Connection Unequipped Status
Unequipped Tandem Connection detection is provided. Five or more consecutive received tandem connection
N2 bytes equal to XX00 0000 result in a TC unequipped indication (TC_UNEQ). The alarm state is exited when
five or more consecutive received tandem connection N2 (Z6) bytes are not equal to XX00 0000. Note that bits
1 and 2 of the N2 (Z6) byte are masked (shown as X) and do not affect the detection. The XX represents a
don't care value and may be equal to a BIP-2 value.
BIP-2 Compensation
Since the BIP-2 parity check is taken over the VC-n (including N2), writing into N2 at the TC-source or TC-sink
will affect the VC-2/VC-12/VC-11 path parity calculation. Unless this is compensated, the error monitoring
mechanism of BIP-2 is corrupted. Because the parity should always be consistent with the current state of the
VC-n, the BIP has to be compensated each time the N2-byte is modified. Since the BIP-2 value in a given
frame reflects the parity check over the previous frame, the changes made to BIP-2 bits in the previous frame
shall also be considered in the compensation of BIP-2 in the current frame.
80
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
Z7/K4 : VT PATH APS AND VT PATH REMOTE DEFECT INDICATION
Bits [7:4] are used for VT Path APS signalling (APS-V).
Bits [3:1] are for the optional Enhanced VT Path Remote Defect Indication (ERDI-V). Bits 5 to 7 of byte K4 may
provide a remote defect indication with additional differentiation between the remote payload defect (LCD),
server defects (AIS, LOP), and the remote connectivity defects (TIM, UNEQ). The optional codes from
Table 11 will be used. Use of the "010" code to indicate payload defects does not imply a requirement to use
the "101" and "110" codes to distinguish between server and connectivity defects.
TABLE 11: K4 (B5-B7) CODING AND INTERPRETATION
B5/B8 OF
V5
B6
B7
MEANING
TRIGGERS
0
0
0
No remote defect
No remote defect
0
0
1
No remote defect
No remote defect
0
1
1
No remote defect
No remote defect
0
1
0
Remotepayload defect
LCD(Note 1)
1
0
0
Remote defect
AIS, LOPTIM, UNEQ(or PLM, LCD)(Note 2)
1
1
1
Remote defect
AIS, LOPTIM, UNEQ(or PLM, LCD)(Note 2)
1
0
1
Remoteserver defect
AIS, LOP(Note 3)
1
1
0
Remoteconnectivity
defect
TIM,UNEQ
NOTES:
1.
LCD is the only currently defined payload defect and is applicable to ATM equipment only.
2.
Old equipment may include LCD or PLM as a trigger condition. PLM and UNEQ have previously been covered by
SLM.
3.
Remote server defect and server signal failure are defined in Recommendation G.783.
For these optional codes, bit 7 is always set to the inverse of bit 6 to allow equipment which supports this
feature to identify that it is interworking with equipment that uses the single bit RDI. In such a case, equipment
at both ends will interpret only V5.
Bit 0 is reserved for future growth and is treated as Undefined.
TABLE 12: Z7/K4 - VT PATH GROWTH AND VT PATH REMOTE DEFECT INDICATION
7 (MSB)
6
5
4
3
APS-V
2
ERDI-V
81
1
0 (LSB)
Undefined
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
MAKE PAYLOAD BLOCK (MKP)
Figure 33 and Figure 34 show the internal workings of the Make Payload block.
FIGURE 33. MKP (MAKE PAYLOAD), ONE OF SEVEN MKG : MAKE VT/TU GROUP
Not Equipped
E1 #1
E1 #2
.
.
.
.
.
.
clk
data
sof
3x
32 :1
MKT :
Make
Tributary
E1 #21
Loopback
VT/TU
Group
Output
Test Channel
VT #2
...
Test Pattern
...
3 :1
Not Equipped
VT #3
E1 #1
E1 #2
.
.
.
clk
data
sof
3x
32 :1
E1 #21
Loopback
Test Channel
Test Pattern
82
MKT :
Make
Tributary
Byte
Interleaving
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
FIGURE 34. MKP (MAKE PAYLOAD), VT/TU GROUP INTERLEAVING.
VT/TU Group 1
VT/TU Group 2
VT/TU Group 3
Mid Bus
txbyte[7 :0]
txclk
VT/TU Group 4
7 :1
txbyte_en
VT/TU Group 5
VT/TU Group 6
VT/TU Group 7
83
REV. 1.0.1
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
Make Tributary block (MKT)
Each of the 21 Make Tributary blocks (MKT) illustrated in Figure 35 takes the output of its channel multiplexer
and builds a tributary suitable for byte interleaving into a tributary group. It takes care of deserialization, VT
POH generation and stuff bit control. If the Alarm Indication Signal (AIS) is asserted, a tributary made up of all
ones is generated.
FIGURE 35. MAKE TRIBUTARY (MKT)
MKT : Make Tributary
AIS RDI REI RFI
reset
clock
data
sos
FIFO
data
TSIZE_SEL
19.44MHz
Deserialise
txclk
Start of Superframe
read
empty
low
C1
high
C2
data
read
VT POH
Clock Domain
Boundaries
84
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
Extract Payload block (XTP)
This block, illustrated in Figure 36, extracts the individual E1 channels from the SDH data stream. The seven
groups are first de-interleaved, Fixed Stuff columns are removed, and then one to four tributaries are extracted
from each group. This block handles the V1-V2 VT Payload Pointer processing, VT POH, and stuff bits.
FIGURE 36. EXTRACT PAYLOAD (XTP)
XTP : Extract Payload
Unequipped
1
E1
Data,
SoS &
Clock
Outputs
XTG :
Extract
Group 1
Deinterleave
Start of Superframe
30 x
3x
32 : 1
.
.
.
.
.
.
rxclk
Mid Bus
from
SDH
rxbyte_en
XTG :
Extract
Group 7
21
Loopback
Test Channel
Test Pattern
Clock Domain
Boundaries
Test Channel
Two extra E1 channels (one input, the other output) are available to be used as a test channel. The test
channel's input and output can be used in the same way as any of the 21 E1 signals' inputs and outputs. They
can be mapped into or extracted from the SDH stream, they can be looped back, or fed by or compared to the
test pattern generator.
Test Pattern Generator (TPG)
The Test Pattern Generator can generate or compare to a pseudo random test pattern of length 215-1, a fixed
pattern of all zeros, all ones, or alternating ones and zeros as recommended in ITU/CCITT Recommendation
O.151. The pseudo random pattern is generated by a fifteen stage shift register whose 14th and 15th stage
outputs are added in a modulo-two stage, and the result is fed back to the input of the first stage. The fed back
bit is inverted before it is used as the next bit in the pseudo random sequence either for output or to be
compared to. The test patterns of correct bit rate is made available to each of the seven groups according to
the size of the tributaries assigned to each group. In addition to valid clock and data signals, the TPG
generates a valid Start of Superframe Pulse one E1 clock tick wide at appropriate intervals, for synchronous E1
mappings. This will emulate four null signalling bits.
85
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
Reference Clocks Generation (RCG)
The Reference Clock Generator block (RCG) divides the 19.44MHz input clock to generate clock signals of
precise frequencies and signals used in loopback modes. The SDH loopback clock lbclk is simply a 6.48MHz
clock obtained by dividing the input frequency by three. The loopback byte enable signal lbbyte_en is asserted
for 86 out of every 90 lbclk clock ticks. The loopback Start of Superframe signal lbsos is a single pulse, one
lbclk tick wide that occurs once every 4x9x90 lbclk ticks.
FIGURE 37. REFERENCE CLOCKS GENERATOR (RCG)
÷3
lbclk
19.44MHz
86 : 4
1 : (4x9x90) – 1
÷ 9 / ÷ 10
lbbyte_en
lbsos
2.048MHz
Add 63 mod 128
÷ 3 /÷ 4
Add 21 mod 263
86
6.312MHz
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
DATA INTERFACE BETWEEN SDH/FRAMER AND MAPPER
The data interface between the SDH and the Mapper blocks consist of three lines/buses in each direction: clk,
byte lane, and byte enable. There are 1 byte lanes (8 bits) and 1 byte enable running at a data rate of
6.48MHz.
In the receive direction, the SDH payload data is sent to the receive mapper block. Data is presented on the
byte lane on the rising edge of rclk with rbyte_en "High" representing the data is valid. The mapper block then
fetches the data on the next rising edge of rclk.
FIGURE 38. RECEIVE SDH/FRAMER MAPPER INTERFACE
rclk
rbyte_en
rbyte
_en
X
valid data
X
In the transmit direction, the SDH payload data is pulled from the transmit Mapper block. tbyte_en is used as
an acknowledge signal indicating that data is recognized. When tbyte_en is asserted "High", data from the
Mapper is latched into the SDH block on the next rising tclk edge.
FIGURE 39. TRANSMIT SDH/FRAMER MAPPER INTERFACE
tclk
tbyte_en
tbyte
_en
X
valid data
87
X
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
E1 FRAME SYNCHRONIZATION
The E1 framer establishes frame and multiframe boundaries by searching for frame alignment, CRC
multiframe alignment, and channel associated signaling multiframe alignment in the incoming PCM data
stream, and provides an output clock useful for data conditioning and decoding. User access to the E1 framer
is via the microprocessor bus interface. The framer incorporates a robust framing algorithm which prevents
false synchronization on patterns that mimic the framing bits.
The E1 framer monitors the incoming data stream from the LIU line interface module for loss of frame, loss of
CRC multiframe and CAS multiframe alignment based on user-selectable criteria, and searches for new frame
alignment pattern when sync loss is detected. When sync loss is detected, the framer begins an off-line search
for the new alignment and shifts into resync mode; all output timing signals remain at the old alignment during
this period. When one and only one candidate is qualified, the output timing will move to the new alignment at
the beginning of the next frame (or multiframe). One frame later, the framer resumes the normal sync
monitoring mode and outputs the valid sync signal. The general synchronization flow diagram is illustrated in
Figure 40.
FIGURE 40. E1 FRAMER SYNCHRONIZATION FLOW DIAGRAM
Initial
Enter
"Resync" State
Of-Line Search
&
Switch State
Yes
Shadow Synchronization
Frame Alignment
Search
LOF
?
No
No
No
In-Sync
?
Yes
State is
"resync"
?
Yes
Frame lock &
enter "monitor"
state
Enter "monitor"
state
FAS Synchronization
Three steps are involved in the synchronization process. The first one is finding FAS frame alignment. The
second one searches for FAS using one of two user selectable algorithms as defined in Recommendation
G.706. In addition, a two frame check sequence can be added optionally to either one of these two algorithm to
provide protection against false frame alignment in the presence of random mimic patterns.
88
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
Algorithm 1:
Step 1: Seach for the presence of the correct 7-bit FAS pattern. Go to step 2 if found;
Step 2: Check if the FAS is absent in the following frame by verifying that bit 2 of the assumed timslot 0 byte is
a one. Go back to step 1 if verification failed; Otherwise, go to step 3;
Step 3: Check if the FAS is present in the assumed timeslot 0 byte of the third frame. Go back to step 1 if failed.
If either of the conditions in steps 2 or 3 are not met, a new search for frame alignment is initiated in the bit
immediately following the errored timeslot 0 byte locaiton. If both conditions are met and frame check
sequence is enabled, then an additional check sequence is initiated. The check sequence consists of verifying
correct frame alignment for an additional two frames.
Step 4: Once the frame alignment is found, check if the FAS is absent in the following frame by verifying the bit
2 of timeslot 0 being a one. If verification failed, go back to step 1.
Step 5: Check that the FAS is present of the next frame. If not, go back to step 1.
The second algorithm is similar to the first one, but adds a one frame hold-off in the second step to begin a new
search in the bit immediately following the second (third frame) assumed FAS. This extra frame hold-off is
performed only after the condition in step 2 fails to provide a robust algorithm which allows the framer to
operate correctly in the presence of fixed timeslot imitating the FAS pattern.
Algorithm 2:
Step 1: Seach for the presence of the correct 7-bit FAS pattern. Go to step 2 if found;
Step 2: Check if the FAS is absent in the following frame by verifying that bit 2 of the assumed timslot 0 byte is
a one. Go to step 4 if varification failed; Otherwise, go to step 3;
Step 3: Check if the FAS is present in the assumed timeslot 0 byte of the third frame. Go back to step 1 if failed;
Otherwise start check sequence if enabled.
Step 4: Wait for assumed FAS in next frame, then go back to step 1.
If both conditions are met and frame check sequence is enabled, then an additional check sequence is
initiated. The check sequence consists of verifying correct frame alignment for an additional two frames.
Step 5: Once the frame alignment is found, check if the FAS is absent in the following frame by verifying the bit
2 of timeslot 0 being a one. If verification failed, go back to step 4.
Step 6: Check that the FAS is present of the next frame. If not, go back to step 1.
When synchronization is achieved, the framer monitors alignment signals for errors. A Red Alarm (FASRED)
is generated if frame alignment is lost. The criteria for loss of frame alignment in FAS framing is dictated by an
E1 Framing Control Register (FCR). The MSB of this register is an RSYNC bit which imposes the framer to
restart the resync process even if the frame is currently in sync. This bit will be cleared after the framer
resumes its normal sync monitoring mode. The FAS criteria bits specify the number of consecutive erred FAS
patterns determining the loss of FAS alignment. Note: Loss of FAS alignment forces loss of CAS and loss of
CRC alignment.
It is important to note that the off-line searching is conducted by a shadow synchronizer. The shadow
synchronizer continuously searches for the frame alignment even if the framer is in the in-sync state. Once the
loss of frame is declared and the resync mode is entered, the framer can shift back into monitor mode by
moving to the new alignment at the beginning of the next frame as long as the shadow synchronizer is in-sync.
This feature dramatically reduces the reframe time required.
89
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
CRC Synchronization
After the FAS frame alignment is declared, the second step is to find the CRC-4 multiframe alignment. This is
done by observing whether the international bits (bit 1 of timeslot 0) of non-FAS frames match the CRC
multiframe alignment pattern. Multiframe alignment is declared if at least the valid CRC multiframe alignment
signals are observed within 8ms. The CRC synchronization logic will force a FAS frame search when CRC
multiframe alignment has not been found for 8ms.
Once the CRC multiframe alignment is found, the Out Of CRC MultiFame alignment indication is cleared. The
CRC synchronizer monitors the multiframe alignment signal, indicates errors occurring in the 6-bit CRC
pattern, and indicates the value of the FEBE bits (bit 1 of frames 13 and 15 of the multiframe). The loss of CRC
multiframe alignment is declared if consecutive CRC multiframe alignment signals have been received in error.
When synchronization is achieved, the framer monitors the multiframe alignment signals for errors. A CRC
LOF indication is set to "1" if frame alignment is lost. The criteria for loss of CRC multiframe alignment is
dictated by CRCC bits in E1 Framing Control Register.
Annex B compliance
When ModEnb is "1", G.706 Annex B modified CRC-4 multiframe alignment algorithm is implemented. If CRC4 alignment is enabled and not achieved in 400ms while the basic frame alignment signal is present, it is
assumed that the remote end is a non-CRC-4 equipment. The flow chart in Figure 41 demonstrates this
algorithm.
FIGURE 41. FLOW OF CRC-4 MULTIFRAME ALIGNMENT FOR INTERWORKING
90
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
A 400ms CRC-4 multiframe alignment search period is applied for interworking detection. The 400 msec timer
is triggered on the initial recovery of basic frame alignment and is not reset until the loss of basic frame
alignment occurs. A re-search for FAS will be initiated if CRC-4 multifame alignment can not be found in 8ms
and will not reset the 400ms timer or invoke the consequent actions associated with loss of FAS. All
subsequent searches for CRC-4 multiframe alignment are associated with each basic FAS found. In order to
maintain no disturbance to traffic during the 400ms CRC-4 multiframe search, traffic should be allowed through
with synchronization to the initially determined primary basic frame alignment sequence. If a CRC-4 multiframe
alinment signal is found befoe the 400ms timer elapses, then the basic FAS associated with the CRC-4
multiframe alignment signal should be the one chosen, i.e. the primary basic FAS should be amended
accordingly if the basic FAS alignment changed. If a CRC-4 multiframe alignment sequence can not be found
in 400ms, it should be concluded that a condition of interworking between equipments with and without a CRC4 capability exist, so the traffic should be maintained to the initially determined FAS alignment.
If the path is reconfigured at any time, then it is assumed that the new pair of path will need to re-establish the
complete framing process, i.e. the algorithm is reset.
Consequent actions are taken while a non-CRC-4 remote side is detected:
■
The Framer will provide an indication that there is no incoming CRC-4 multiframe alignment signal
■
The Framer will inhibit further CRC-4 processing
■
The Framer will continue to transmit CRC-4 data to the remote side with both E bits set to zero
In this modified framing mode, the framer always sets the return E bits to zero until the interworking
relationship has been established. If CRC-4-to-CRC-4 interworking is established, then normal CRC-4
processing of erred CRC-4 block data should commence. If CRC-4-to-non-CRC-4 interworking is established,
the E bits should remain at 0.
CAS Synchronization
After the FAS frame alignment is declared, the third step is to find CAS multiframe alignment. Two userselectable algroithms are available.
Algorthm 1 monitors the sixteenth timeslot of each frame and declares CAS multiframe alignment when 15
consecutive frames with bits 1-4 of timeslot 16 not containing the alignment pattern are observed to precede a
frame with timeslot 16 containing the correct alignment pattern.
Algorthm 2 monitors the sixteenth timeslot of each frame and declares CAS multiframe alignment when nonzero bits 1-4 of timeslot 16 are observed to precede a timeslot 16 containing the correct alignment pattern.
Once the CAS multiframe alignment is found, the Out Of CAS MultiFame alignment indication is cleared. The
CAS synchronizer monitors the multiframe alignment signal, indicates errors occurring in the 4-bit alignment
pattern, and indicates the debounced value of the remote signaling multiframe alarm bit (bit 6 of timeslot 16 of
frame 0 of the multiframe).
When synchronization is achieved, the framer monitors multiframe alignment signals for errors. The CAS LOF
indication turns on if frame alignment is lost. The criteria for loss of CRC multiframe alignment is dictated by the
CASC bits in the E1 Framing Control Register.
91
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
FRAME COUNTERS AND TIMING GENERATION
Receive Frame and Multiframe counters and timing generators provide timing for frame and multiframe
alignment, CRC-4 check, signaling extraction, facility data link extraction, yellow alarm, and all the timing for
per-channel parameter fetch. The data extracted from this timing is placed into the appropriate internal storage
elements for the microprocessor to access. The information extracted is not valid unless the receive module
has achieved valid synchronization.
CRC-4 VERIFICATION
The CRC verification is performed by calculating the 4-bit CRC checksum for each incoming sub-multiframe
and comparing this result to the received CRC remainder bits in the subsequent sub-multiframe. The CRC
errors are accumulated over one second intervals. Optionally, a CRC frame resync can be initiated when 915
or more CRC errors occur in one second. The number of CRC errors accumulated during the previous second
is available by reading the E1 Receive Synchronization Bit Error Counter.
ALARM AND ERROR INDICATION
The Alarm indication logic examines the incoming E1 data for alarm conditions. When the change of an alarm
condition is detected, corresponding bits are set in the Alarm and Error Status Register. The Alarm and Error
Interrupt Enable Register is used to select the events that generate interrupts on the microprocessor interrupt
pin when their state changes.
TRANSMIT SLIP BUFFERING
The Voyager-Lite has two-frame (512 bits) elastic stores. This store can be enabled or disabled via
programming bits SB_ENB in the Slip Buffer Control and Status Register (SBCSR). If the elastic buffer either
fills or empties, a controlled slip will occur. If the buffer empties and a read occurs, then a full frame of data will
be repeated and a status bit will be updated. If the buffer fills and a write comes, then a full frame of data will be
deleted and another status bit will be set. If the slip buffer is bypassed (SB_ENB[1:0] = 00 or 11), the slip buffer
is used as a regular JA buffer. If SB_ENB = 2, the slip buffer is put into a FIFO mode. In the FIFO mode, the
slip buffer is acting like a standard first-in-first-out storage. A fixed read and write latency is maintained in a
programmable fashion controlled by the FIFO Latency Register. However, the user should assume the
responsibility to phase lock the input clock to the receive clock to avoid either overrun or under-run. A Slip
Buffer Control & Status register is used to control the slip buffer operations and control interrupts and report its
status.
92
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
4.11
REV. 1.0.1
E1 PHY LOOPBACK DIAGNOSTICS
This section provides some architectural views and implementation details regarding to the system level
integration and performance.
4.11.1
E1 LOOPBACKS
Various controls in the VT Mapper module and E1 framer module allow Voyager-Lite to conduct many types of
loopbacks for supporting system diagnosis. Three of them are explained here: E1 facility loopback, E1 facility I/
O loopback and E1 module loopback.
E1 facility loopback
Figure 42 shows this type of loopback by sending the ingress E1 inputs back to egress E1 outputs.
FIGURE 42. E1 FACILITY LOOPBACK
SDH
93
XRT86SH221
REV. 1.0.1
4.11.2
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
E1 facility I/O loopback
Figure 43 shows the this type of loopback by connecting the egress E1 outputs to the ingress E1 inputs.
FIGURE 43. E1 FACILITY I/O LOOPBACK
94
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
4.11.3
REV. 1.0.1
E1 module loopback
Figure 44 shows the this type of loopback by sending the ingress E1 framer outputs back to egress E1 framer
inputs.
FIGURE 44. E1 MODULE LOOPBACK
95
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
4.11.4
ALARM AND AUTO AIS
Voyager-Lite provides the capability to insert alarm, especially AIS, automatically into the data down stream
while exceptional conditions occur. Figure 45 shows the basic structure of the Auto AIS insertion. Note: Each
condition is optional
FIGURE 45. E1 AUTO AIS INSERTION
STM-0
RxTOH
Ins AIS
using clock
w/ standard freq.
STM-0
TxPOH
Ingress
L2 E1 Tx
Ins PDI-P (C2)
Enb_LOS
LOS
EXTLOS
Enb_LOF
LOF
Enb_AIS-L
AIS-L
Enb_SD
SD
Enb_SF
SF
mode involved LIU
STM-0
RxPOH
Ins AIS
using clock
w/ standard freq.
E1 Tx
Egress
L2
E1 Terminator
Enb_AIS-P
AIS-P
Enb_LOP-P
LOP-P
Enb_PLM-P
PLM-P
Enb_TIM-P
TIM-P
Enb_UNEQ-P
UNEQ-P
Enb_LCD-P
LCD-P
Enb_LOF
LOF
mode involved SDH
E1 1
Enb_PDI-P
C2=FC
Ins AIS
using clock
w/ standard freq.
L2 E1 Tx
Ingress
EXTLOS
mode involved LIU
Rx VT mapper
Enb_J2_INV,J2_MIS
J2_INV,J2_MIS
Enb_N1,N2 AIS
N1,N2 AIS
Enb_MFLOF
MFLOF
Enb_APId
TC_APId
Enb_UNEQ
TC_UNEQ
Enb_VT_TU
VT_TU AIS
Enb_UNEQ
UNEQ
Enb_SIGLABEL
SIGLABEL_MIS
1
28
Egress
L2
E1 Terminator
Ins AIS
using clock
w/ standard freq.
E1 Tx
28
Enb_LOF
LOF
E1 21
mode involved VT
Auto C2 Insertion and STS-1/VT
Auto AIS Insertion
TABLE 13: E1 TO STM-0 - RESPONSE TIME < 125 US
E1 CONDITION
STM-0 RESPONSE
LOS
E1-AIS,PDI-P/AIS-P
LOF
PDI-P/AIS-P
AIS-L
PDI-P/AIS-P
TABLE 14: STM-0 TO E1 - RESPONSE TIME < 125 USEC
STM-0 CONDITION
E1 RESPONSE
STM-0 RETURN PATH
LOS
E1 AIS
RDI-L, RDI-P
LOF
E1 AIS
RDI-L, RDI-P
AIS-L
E1 AIS
RDI-L, RDI-P
96
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
TABLE 14: STM-0 TO E1 - RESPONSE TIME < 125 USEC
STM-0 CONDITION
E1 RESPONSE
STM-0 RETURN PATH
LOP-P
E1 AIS
RDI-P
AIS-P
E1 AIS
RDI-P
UNEQ-P
E1 AIS
RDI-P
PLM-P
E1 AIS
RDI-P
TIM-P
E1 AIS
RDI-P
97
REV. 1.0.1
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
5.0 ANALOG FRONT END / LINE INTERFACE UNIT (LIU) SECTION
The analog front end section is a fully integrated, 21-channel E1 LIU for 75Ω or 120Ω applications. With
internal termination and an option for high impedance, the LIU uses one bill of materials to support Coax or
Twisted Pair medium and supports 1:1 or 1+1 redundancy. Each transmitter has an optional Jitter Attenuator
and can provide basic diagnostic features that can be used to send data to the line interface. Each receiver
accepts standard E1 pulses, provides clock and data recovery, basic diagnostic detection, and an optional
Jitter Attenuator before presenting data to the VT Mapper section. A simplified block diagram of the LIU section
can be seen below.
FIGURE 46. SIMPLIFIED BLOCK DIAGRAM OF THE LIU SECTION
Driver
Monitor
Tx / Rx Jitter
Attenuator
TCLK
TPOS
VT Mapper
Section
RCLK
RPOS
Remote
LB
Tx Pulse
Shaper &
Pattern Gen
Timing
Control
QRSS
Generation
& Detection
Digital
LB
Tx / Rx Jitter
Attenuator
Clock & Data
Recovery
AIS & LOS
Detector
98
Line
Driver
TTIP
TRING
Analog
LB
Peak
Detector
& Slicer
RTIP
RRING
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
5.1
5.1.1
REV. 1.0.1
TRANSMIT LINE INTERFACE UNIT
Jitter Attenuator
The LIU is ideal for multiplexer or mapper applications where the network data crosses multiple timing
domains. As the higher data rates are de-multiplexed down to E1 data, stuffing bits are typically removed
which can leave gaps in the incoming data stream. The jitter attenuator can be selected in the transmit path
with a 32-Bit or 64-Bit FIFO that is used to smooth the gapped clock into a steady E1 output. The maximum
gap width that the jitter attenuator can accept without a disruption in data flow is shown below.
FIFO DEPTH
MAXIMUM GAP WIDTH
32-Bit
20 UI
64-Bit
50 UI
NOTE: If the LIU is used in a loop timing system, the jitter attenuator can be selected in the receive path. See the Receive
LIU Section of this datasheet.
5.1.2
TAOS (Transmit All Ones)
The LIU section has the ability to transmit all ones on a per channel basis by programming the appropriate
channel register. This function takes priority over the digital data present on its digital inputs from the VT
Mapper section. Figure 47 is a diagram showing the all ones signal at TTIP and TRING.
FIGURE 47. TAOS (TRANSMIT ALL ONES)
1
1
1
TAOS
5.1.3
ATAOS (Automatic Transmit All Ones)
If ATAOS is selected by programming the appropriate global register, an AMI all ones signal will be transmitted
for each channel that experiences an RLOS condition. If RLOS does not occur, the ATAOS will remain inactive
until an RLOS on a given channel occurs. A simplified block diagram of the ATAOS function is shown in
Figure 48.
FIGURE 48. SIMPLIFIED BLOCK DIAGRAM OF THE ATAOS FUNCTION
Tx
TTIP
TRING
TAOS
ATAOS
RLOS
99
XRT86SH221
REV. 1.0.1
5.1.4
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
QRSS/PRBS Generation
The LIU section can transmit a QRSS/PRBS random sequence to a remote location from TTIP/TRING. To
select QRSS or PRBS, see the register map for programming details. The polynomial for each selection is
shown below.
5.1.5
RANDOM PATTERN
E1
QRSS
220 - 1
PRBS
215 - 1
Transmit Pulse Shaper and Filter
If TCLK is not present from the VT Mapper section, pulled "Low", or pulled "High" the transmitter outputs at
TTIP/TRING will automatically send an all ones or an all zero signal to the line by programming the appropriate
global register. By default, the transmitters will send all zeros. To send all ones, the TCLKCNL bit must be set
"High".
5.1.6
DMO (Digital Monitor Output)
The driver monitor circuit is used to detect transmit driver failures by monitoring the activities at the TTIP/
TRING outputs. Driver failure may be caused by a short circuit in the primary transformer or system problems
at the transmit inputs. If the transmitter of a channel has no output for more than 128 clock cycles, DMO goes
"High" until a valid transmit pulse is detected. If the DMO interrupt is enabled, the change in status of DMO will
cause the interrupt pin to go "Low". Once the status register is read, the interrupt pin will return "High" and the
status register will be reset (RUR).
5.2
Line Termination (TTIP/TRING)
The output stage of the transmit path generates standard return-to-zero (RZ) signals to the line interface for E1
twisted pair or E1 coaxial cables. The physical interface is optimized by placing the terminating impedance
inside the LIU. This allows one bill of materials for 75Ω and 120Ω reducing the number of external components
necessary in system design. The transmitter outputs only require one DC blocking capacitor of 0.68µF. For
redundancy applications (or simply to tri-state the transmitters), set TxTSEL to a "1" in the appropriate channel
register. A typical transmit interface is shown in Figure 49.
FIGURE 49. TYPICAL CONNECTION DIAGRAM USING INTERNAL TERMINATION
TTIP
Transmitter
Output
1:2
C=0.68uF
E1 Line Interface
T RING
Internal Impedance
100
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
5.3
REV. 1.0.1
Receive path line interface
The receive path of the LIU section consists of 21 independent E1 receivers. The following section describes
the complete receive path from RTIP/RRING inputs to RCLK/RPOS outputs which are then sent to the VT
Mapper interface internal to the chip. A simplified block diagram of the receive path is shown in Figure 50.
FIGURE 50. SIMPLIFIED BLOCK DIAGRAM OF THE RECEIVE PATH
Rx Jitter
Attenuator
RCLK
RPOS
5.3.1
Clock & Data
Recovery
Peak Detector
& Slicer
RTIP
RRING
Line Termination (RTIP/RRING)
The input stage of the receive path accepts standard E1 twisted pair or coaxial cable inputs through RTIP and
RRING. The physical interface is optimized by placing the terminating impedance inside the LIU. This allows
one bill of materials for 75Ω and 120Ω operation reducing the number of external components necessary in
system design. The receive termination impedance (along with the transmit impedance) is selected by
programming TERSEL to match the line impedance. Selecting the internal impedance is shown below.
TERSEL
LINE TERMINATION
0
75Ω
1
120Ω
The LIU section has the ability to switch the internal termination to "High" impedance by programming RxTSEL
in the appropriate channel register. For internal termination, set RxTSEL to "1". By default, RxTSEL is set to "0"
("High" impedance). See Figure 51 for a typical connection diagram using the internal termination.
FIGURE 51. TYPICAL CONNECTION DIAGRAM USING INTERNAL TERMINATION
RTIP
Receiver
Input
1:1
E1 Line Interface
R RING
Internal Impedance
101
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
5.3.2
Clock and Data Recovery
The receive clock (RCLK) is recovered by the clock and data recovery circuitry. An internal PLL locks on the
incoming data stream and outputs a clock that’s in phase with the incoming signal. This allows for multichannel E1 signals to arrive from different timing sources and remain independent. In the absence of an
incoming signal, RCLK maintains its timing by using the internal master clock (64 x E1) as its reference
(MCLK). Once, RLOS is cleared, the recovered line clock switches back to RCLK. See Figure 52 for the
detailed timing specifications.
FIGURE 52. RECOVERED LINE CLOCK PLL TIMING
Switch to MCLK
RCLK
t1
RPOS
Loss of Data
Valid Data
Valid Data
t3
t2
t4
RLOS
PARAMETER
SYMBOL
MIN
TYP
Switching time from RCLK to MCLK
t1
RLOS declares Loss of Signal
t2
See Note 2.
RLOS clears Loss of Signal
t3
See Note 2
Switching time from MCLK to RCLK
t4
MAX
UNITS
14.6
µS
18.1
µS
NOTE: 1. VDD=3.3V ±5%, TA=25°C, Unless Otherwise Specified
NOTE: 2. RLOS declaration and clearance depends on which mode is selected. The LIU supports both G.775 and ETSI300-233. Refer to the register map for more details.
5.3.3
Recovered Line Clock Outputs
There are two output pins that can be used to select among the 21 Recovered Line Clock signals. These
signals can be used as a timing reference relative to the two channels chosen. The pins are REF_REC1 and
REF_REC0.
FIGURE 53. REF_REC[1:0] RECOVERED LINE CLOCK SELECTION TO OUTPUT PINS
21 Channel
LIU Inputs
21 Recovered
Line Clocks
REF_CLK1
Clock and Data
Recovery
Multiplexer
REF_CLK0
Register Selection
21:2
102
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
5.3.4
REV. 1.0.1
RLOS (Receiver Loss of Signal)
The LIU section supports both G.775 or ETSI-300-233 RLOS detection.
In G.775 mode, RLOS is declared when the received signal is less than 375mV for 32 consecutive pulse
periods (typical). The device clears RLOS when the receive signal achieves 12.5% ones density with no more
than 15 consecutive zeros in a 32 bit sliding window and the signal level exceeds 425mV (typical).
In ETSI-300-233 mode, the device declares RLOS when the input level drops below 375mV (typical) for more
than 2048 pulse periods (1msec).
The device exits RLOS when the input signal exceeds 425mV (typical) and has transitions for more than 32
pulse periods with 12.5% ones density with no more than 15 consecutive zero’s in a 32 bit sliding window.
5.3.5
EXLOS (Extended Loss of Signal)
By enabling the extended loss of signal by programming the appropriate channel register, the digital RLOS is
extended to count 4,096 consecutive zeros before declaring RLOS. By default, EXLOS is disabled and RLOS
operates in normal mode.
5.3.6
Jitter Attenuator
The jitter attenuator reduces phase and frequency jitter in the recovered clock if it is selected in the receive
path. The jitter attenuator uses a data FIFO (First In First Out) with a programmable depth of 32-bit or 64-bit. If
the LIU is used for line synchronization (loop timing systems), the JA should be enabled in the receive path.
When the Read and Write pointers of the FIFO are within 2-Bits of over-flowing or under-flowing, the bandwidth
of the jitter attenuator is widened to track the short term input jitter, thereby avoiding data corruption. When this
condition occurs, the jitter attenuator will not attenuate input jitter until the Read/Write pointer’s position is
outside the 2-Bit window. The bandwidth is programmable to either 10Hz or 1.5Hz (1.5Hz automatically selects
the 64-Bit FIFO depth). The JA has a clock delay equal to ½ of the FIFO bit depth.
NOTE: If the LIU is used in a multiplexer/mapper application where stuffing bits are typically removed, the jitter attenuator
can be selected in the transmit path to smooth out the gapped clock. See the Transmit LIU Section of this
datasheet.
5.3.7
RxMUTE (Receiver LOS with Data Muting)
The receive muting function can be selected by setting RxMUTE to "1" in the appropriate global register. If
selected, any channel that experiences an RLOS condition will automatically pull RPOS "Low" to prevent data
chattering to the internal connection to the VT Mapper section. If RLOS does not occur, the RxMUTE will
remain inactive until an RLOS on a given channel occurs. The default setting for RxMUTE is "0" which is
disabled. A simplified block diagram of the RxMUTE function is shown in Figure 54.
FIGURE 54. SIMPLIFIED BLOCK DIAGRAM OF THE RXMUTE FUNCTION
RPOS
RxMUTE
RLOS
103
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
6.0 MEMORY AND REGISTER MAP
This section provides a complete list of the Voyager-Lite register address map as an over view followed by a
full description of each register.
6.1
MEMORY MAPPED I/O ADDRESSING
In order to support a multiple channel implementation, maintain rich user controlled features, and provide
future scalability without sacrificing performance for microcontroller access, Voyager-Lite chooses an
addressing scheme to channelize the access for the microcontroller interface. This mapping scheme was
chosen such that Voyager-Lite is compatible with its 28 Channel predecessor, Voyager XRT86SH328 which
also supports DS1, DS-3, M13 Mux, STS-1/STS-3 SONET Framer/VT Mapper and many other features.
TABLE 15: CHANNEL MAPPING SCHEME
6.2
N
CHANNELS
1-3
Channel 1 through Channel 3
5-7
Channel 4 through Channel 6
9-11
Channel 7 through Channel 9
13-15
Channel 10 through Channel 12
17-19
Channel 13 through Channel 15
21-23
Channel 16 through Channel 18
25-27
Channel 19 through Channel 21
OVERVIEW OF CONTROL REGISTERS
TABLE 16: MEMORY MAP - E1 FRAMERS
ADDRESS
CONTENTS
0x0001 - 0x004F
SDH Operation Control
0x0202 - 0x027F
Receive TOH Block
0x0281 - 0x02F3
Receive POH Block AU-3
NOTE: When 0x02 is replaced with 0x05, the
part is processing AU-4. (0x0581 0x05F3)
0x0700 - 0x0753
Transmit TOH Block
0x0781 - 0x07D3
Transmit POH Block AU-3
NOTE: When 0x07 is replaced with 0x0A, the
part is processing AU-4. (0x0A81 0x0AD3)
0xN000 - 0xN011
E1 Line Interface Unit
0xN100 - 0xNB01
E1 Receive Synchronizer Framer
0xNC03 - 0xNF3F
VT Mapping Operation Control
104
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
6.3
REV. 1.0.1
SDH Operation Control Register Descriptions
TABLE 17: INTERRUPT TYPE SELECT (ITS 0X0001H)
BIT7
BIT6
BIT5
BIT4
BIT3
Reserved
BIT2
BIT1
BIT0
INT_SEL
CLEAR_INT
INT_GEN
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:3] - Reserved
BIT 2 - Interrupt Type Select:
This bit is used to select between Reset-Upon-Read or Write-1-to-Clear
0 - RUR
1 - WC
BIT 1 - Clear Interrupt Enable After Read
This bit is used to select the Auto-Clear function that will reset all the interrupt enable bits back to their default values.
0 - Interrupt enable bit is not cleared after status reading.
1 - Interrupt enable bit is cleared after status reading.
BIT 0 - Interrupt Generation Enable
This bit is used to select between an interrupt generation or status polling (No INT) environment.
0 - Status Polling
1 - Interrupt Generation Enabled
TABLE 18: RECEIVE STM CLOCK DETECT (RSTMCD 0X0003H)
BIT7
BIT6
BIT5
BIT4
BIT3
BIT2
BIT1
Reserved
RxSCLKDET
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
Reserved
BIT0
SDH_RST
BIT 7 - Reserved
BIT 6 - Receive STM-x Clock Detect
This bit allows the Transmit Clock Output to be looped back to the Receive Clock Input in the event that the receive
clock is missing.
0 - Disabled
1 - Enabled
BIT [5:1] - Reserved
BIT 0 - SDH Block Software Reset
This bit is used to reset the internal circuitry of the entire SDH blocks to their default state. This bit does NOT reset any
register bits.
0 - Normal Operation
1 - SDH Software Reset
105
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
TABLE 19: DEVICE ID REGISTER (DEVID 0X0004H)
BIT7
BIT6
BIT5
BIT4
BIT3
BIT2
BIT1
BIT0
DEVID[7:0]
RO
RO
RO
RO
RO
RO
RO
RO
0
1
0
1
0
0
0
1
BIT [7:0] - Device ID
The contents of this Read Only register should always be set to 0x51h. The purpose of this register is for identification
only.
TABLE 20: REVISION ID REGISTER (REVID 0X0005H)
BIT7
BIT6
BIT5
BIT4
BIT3
BIT2
BIT1
BIT0
REVID[7:0]
RO
RO
RO
RO
RO
RO
RO
RO
0
0
0
0
0
0
0
1
BIT [7:0] - Revision ID
The contents of this Read Only register should be set to 0x01h for revision A silicon. The purpose of this register is for
revision identification only.
TABLE 21: TELECOM BUS PARITY ENABLE (TBPE 0X000BH)
BIT7
BIT6
BIT5
BIT4
BIT3
BIT2
BIT1
Reserved
BIT0
TBPINTEN
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:1] - Reserved
BIT 0 - Telecom Bus Parity Interrupt Enable
This bit is used to enable parity interrupt while configured to operate in the telecom bus mode.
0 - Disabled
1 - Parity Interrupt Enabled
106
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 22: TELECOM BUS PARITY ERROR ENABLE (TBPEE 0X000FH)
BIT7
BIT6
BIT5
BIT4
BIT3
BIT2
BIT1
Reserved
BIT0
TBPERR_EN
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:1] - Reserved
BIT 0 - Telecom Bus Parity Error Interrupt Enable
This bit is used to enable parity interrupt while configured to operate in the telecom bus mode.
0 - Disabled
1 - Parity Error Interrupt Enabled
TABLE 23: OPERATION BLOCK INTERRUPT REGISTER 1 (OPIR1 0X0012H)
BIT7
BIT6
BIT5
BIT4
BIT3
BIT2
BIT1
BIT0
OP_CNTL
Reserved
VTMAPPER
Reserved
E1
Reserved
RXLIU
TXLIU
RO
RO
RO
RO
RO
RO
RO
RO
0
0
0
0
0
0
0
0
BIT 7 - Operation control interrupts including Telecom bus interrupts
Operation control block interrupt for all interrupts in operation control register address map including telecom bus and
APS interrupts. When 1, an interrupt is pending.
BIT 6 - Reserved
BIT 5 - VT Mapper Block Interrupt.
When 1, an interrupt from the VT Mapper block is pending.
BIT 4 - Reserved
BIT 3 - E1 framing synchronizer block Interrupt.
When 1, an interrupt from the E1 Framing Synchronizer block is pending.
BIT 2 - Reserved
BIT 1 - Receive Line Interface Block Interrupt.
When 1, an interrupt from the Receive Line interface block is pending.
BIT - 0 Transmit Line Interface Block Interrupt.
When 1, an interrupt from the Transmit Line Interface block is pending.
107
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
TABLE 24: OPERATION BLOCK INTERRUPT REGISTER BYTE 0 (OPIR0 0X0013H)
BIT7
BIT6
BIT5
BIT4
Reserved
RXSTOH
RXSPOH
RO
RO
RO
RO
0
0
0
0
BIT3
BIT2
BIT1
BIT0
EXTINT1
EXTINT0
Reserved
RO
RO
RO
RO
0
0
0
0
Reserved
BIT 7 - Reserved
BIT 6 - Receive SDH Transport Overhead Block Interrupt
When 1, an interrupt from the SDH TOH block is pending.
BIT 5 - Receive SDH Path Overhead Block Interrupt
When 1, an interrupt from the SDH POH block is pending.
BIT [4:3] - Reserved
BIT 2 - External interrupt input 1
When 1, an interrupt from the EXT_INT_1 pin is pending.
BIT 1 - External interrupt input 0
When 1, an interrupt from the EXT_INT_0 pin is pending.
BIT 0 - Reserved
108
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 25: OPERATION BLOCK INTERRUPT ENABLE REGISTER BYTE 1 (OPIER1 0X0016H)
BIT7
BIT6
BIT5
BIT4
BIT3
BIT2
BIT1
BIT0
OP_CNTL_E
Reserved
VTMAP_ENB
Reserved
E1_ENB
Reserved
RXLIU_ENB
TXLIU_ENB
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT 7 - Operation Control Block Interrupt Enable
When 0, interrupts are disabled.
When 1, interrupts are enabled.
BIT 6 - Reserved
BIT 5 - VT Mapper Block Interrupt Enable
When 0, interface interrupts are disabled.
When 1, interrupts are enabled.
BIT 4 - Reserved
BIT 3 - E1synchronizer block Interrupt Enable
When 0, interrupts are disabled.
When 1, interrupts are enabled.
BIT 2 - Reserved
BIT 1 - Receive Line Interface Block Interrupt Enable
When 0, receive Line Interface interrupts are disabled.
When 1, receive Line Interface interrupts are enabled.
BIT 0 - Transmit Line Interface Block Interrupt Enable
When 0, receive Line Interface interrupts are disabled.
When 1, receive Line Interface interrupts are enabled.
109
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 26: OPERATION BLOCK INTERRUPT ENABLE REGISTER BYTE 0 (OPIER0 0X0017H)
BIT7
Reserved
BIT6
BIT5
BIT4
RXTOH_ENB RXPOH_ENB
BIT3
Reserved
BIT2
BIT1
EXTINT1_EN EXTINT0_EN
BIT0
Reserved
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT 7 - Reserved
BIT 6 - Receive SDH Transport Overhead Block Interrupt Enable
When 0, receive transport overhead interrupts are disabled.
When 1, receive STOH interrupts are enabled.
BIT 5 - Receive SDH Path Overhead Block Interrupt Enable
When 0, receive path overhead interrupts are disabled.
When 1, receive SPOH interrupts are enabled.
BIT [4:3] - Reserved
BIT 2 - External interrupt input 1 Interrupt Enable
When 0, the interrupts is disabled.
When 1, the interrupt is enabled.
BIT 1 - External interrupt input 0 Interrupt Enable
When 0, the interrupts is disabled.
When 1, the interrupt is enabled.
BIT 0 - Reserved
TABLE 27: DE-SYNC AND AU3 MAPPING CONTROL (DSAU3MC 0X001BH)
BIT7
BIT6
BIT5
BIT4
DSYNC_DIS
BIT3
BIT2
BIT1
Reserved
BIT0
AU3_EN
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT 7 - De-Sync Disable
This bit is used to disable the de-sync function for all egress E1 line outputs.
0 - Normal De-Sync Function
1 - Disabled
BIT [6:1] - Reserved
BIT 0 - AU3 Mapping Enable
This bit is used to select AU3 mapping instead of TUG3.
0 - TUG3 Mapping
1 - AU3 Mapping
110
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 28: SDH LOOP BACK SELECT (SDHLBS 0X001FH)
BIT7
BIT6
BIT5
BIT4
BIT3
BIT2
Reserved
BIT1
BIT0
SDHLOOP[3:0]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:4] - Reserved
BIT [3:0] - SDH Loop Back Select
These bits are used to select the SDH loop back mode for diagnostic testing.
0000 - No Loop Back
0001 - Reserved
0010 - Local Transport LB (TOH, POH, and Payload)
0011 - Local Path LB (POH and Payload)
11xx - Reserved
TABLE 29: HIGH BYTE FRAME BOUNDARY LATENCY (HBFBL 0X0034H)
BIT7
BIT6
BIT5
BIT4
BIT3
BIT2
BIT1
BIT0
HB_FB_Latency[15:8]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:0] - High Byte of the Frame Boundary Latency [15:8] (Master Mode Only)
This bit is used to determine the latency between the Frame Sync input pulse to the first byte of the SDH Frame out of
this device. This register is not active in slave mode. The chip must be configured for Master mode in order to adjust
the latency.
TABLE 30: LOW BYTE FRAME BOUNDARY LATENCY (LBFBL 0X0035H)
BIT7
BIT6
BIT5
BIT4
BIT3
BIT2
BIT1
BIT0
LB_FB_Latency[7:0]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:0] - Low Byte of the Frame Boundary Latency [7:0] (Master Mode Only)
This bit is used to determine the latency between the Frame Sync input pulse to the first byte of the SDH Frame out of this
device. This register is not active in slave mode. The chip must be configured for Master mode in order to adjust the
latency.
111
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
TABLE 31: TELECOM BUS CONTROL 1 (TBC1 0X0036H)
BIT7
BIT6
BIT5
BIT4
TBRATE
EMPTY_TS
MST_FP
R/W
R/W
R/W
R/W
0
0
0
0
BIT3
BIT2
BIT1
BIT0
V5POHPE
FP_EN
V5POH_EN
R/W
R/W
R/W
R/W
0
0
0
0
TS_SEL[1:0]
BIT 7 - Telecom Bus Rate Select
This bit is used to select between STM-0 or STM-1 while in the Telecom Bus mode.
0 - STM-1 19.44 MHz
1 - STM-0 6.48 MHz
BIT 6 - Empty Time Slot Select
If this chip is configured as the Master device in STM-1, this bit is used to determine the state of the parallel data within
the two empty slots on the shared telecom bus.
0 - Two Empty Slots are Filled With All Zeros
1 - Two Empty Slots are Tri-Stated
BIT 5 - SLOT 0 Master Frame Pulse Select
The state of this bit determines if the chip is the Master device or Slave device.
0 - Frame Pulse is an Input (Slave Device)
1 - Frame Pulse is an Output (Master Device)
BIT [4:3] - Time Slot Select
These bits indicate the time slot number on the telecom bus where this chip resides if it's configured to tri-state the two
empty slots. The master device "Must" occupy time slot 0. However, in "all-slave" mode, the slave device occupying
time slot 0 will be responsible for the B1 calculation.
00 - Time Slot 0
01 - Time Slot 1
10 - Time Slot 2
11 - Reserved
BIT 2 - V5Path Over Head Parity Enable
This bit is used to enable V5 in the parity calculation and checking.
0 - Disabled
1 - V5POH Enabled
BIT 1 - FP_ENB
This bit is used to configure the Telecom Bus as a parallel port and only clock, data and frame pulse (c1j1 signal) are
valid signals.
0 - Normal Operation
1 - FP Enabled
BIT 0 - V5 POH Signal Indication Enable
When this bit is set to "1", the V5 pulse will show up on the TUPOH over head signal.
0 - Disabled
1 - V5 POH Pulse Enabled
112
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 32: TELECOM BUS CONTROL 0 (TBC0 0X0037H)
BIT7
BIT6
BIT5
BIT4
BIT3
BIT2
BIT1
BIT0
TB_EN
TB_High-Z
FP2kHz
TBP_SEL
J1_ONLY
TBPAR_SEL
TBPAR_EN
Re-Phase
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT 7 - Telecom Bus Enable
This bit is used to enable the Telecom Bus. By default, this bit is set to 1 (enabled).
0 - Disabled
1 - Enabled
BIT 6 - Telecom Bus Tri-State
This bit is used to tri-state the Telecom Bus.
0 - Normal Operation
1 - Tri-Stated
Bit 5 - Frame Pulse Operates at 2kHz
This bit is used to enable V1 alignment which sets the frame pulse at a rate of 2kHz. If this part is configured for Master
mode and this bit is set to "1", then it will output 2kHz, otherwise it will output 8kHz. If this part is configured as a slave
device and this bit is set to "1", it must receive 2kHz, otherwise it must receive 8kHz.
0 - Frame Pulse is 8kHz
1 - Frame Pulse is 2kHz
BIT 4 - Telecom Bus Parity Select
This bit is used to select which data is used for parity generation and check.
0 - Data Bits Only
1 - Data Bits, C1J1, and PL
BIT 3 - Telecom Bus J1 ONLY
This bit determines the usage of the Telecom bus while the C1J1V1_FP signal generates C1J1 pulse or just J1 pulse.
0 - Both C1 and J1 pulses are generated
1 - Only J1 pulse is generated
BIT 2- Telecom Bus Parity Select
This bit determines whether the parity is odd or even for the Telecom Bus.
0 - Even Parity
1 - Odd Parity
BIT 1- Telecom Bus Parity Enable
This bit determines whether parity generation and checking are enabled on the Telecom Bbus.
0 - Parity Enabled
1 - Parity Disabled
BIT 0 - Re-Phase On
This bit determines the usage of the Telecom bus while it is selected as Rephase/Sync interface in Telecom bus mode.
In Re-Phase Off mode, frame synchronization is gained from the data stream. In Re-Phase On mode, the SDH framer
block uses the C1J1V1_FP for "Re-Phasing" frame alignment to the external frame pulse pin.
0 - Re-Phase Off
1 - Re-Phase On
113
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
TABLE 33: GENERAL PURPOSE INPUT/OUTPUT (GPIO 0X0047H)
BIT7
BIT6
BIT5
BIT4
BIT3
BIT2
BIT1
BIT0
GPIO[7:0]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:0] - General Purpose Input/Output
These bits either generate or monitor the activity on the hardware pins according to the direction.
TABLE 34: GENERAL PURPOSE INPUT/OUTPUT DIRECTION (GPIOD 0X004BH)
BIT7
BIT6
BIT5
BIT4
BIT3
BIT2
BIT1
BIT0
GPIO_DIR[7:0]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:0[] - General Purpose I/O Direction Select
These bits are used to set the direction of the GPIO Hardware Pins.
0 - Inputs
1 - Outputs
TABLE 35: RECOVERED LINE CLOCK REFERENCE 1 (RLCR1 0X004DH)
BIT7
BIT6
BIT5
BIT4
BIT3
Reserved
BIT2
BIT1
BIT0
RECCLK_SEL0[4:0]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:5] - Reserved
BIT [4:0] - Recovered Clock Select 0
These bits select one of the 21 recovered E1 clocks to output on RCLK_REC0 output pin. See Table 37.
TABLE 36: RECOVERED LINE CLOCK REFERENCE 0 (RLCR0 0X004EH)
BIT7
BIT6
BIT5
BIT4
BIT3
Reserved
BIT2
BIT1
BIT0
RECCLK_SEL1[4:0]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:5] - Reserved
BIT [4:0] - Recovered Clock Select 1
These bits select one of the 21 recovered E1 clocks to output on RCLK_REC1 output pin. See Table 37.
114
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 37: RECOVERED LINE CLOCK SELECT FOR RCLK_REC1 AND RCLK_REC0 HARDWARE PINS
BIT[4:0]
RECOVERED LINE CLOCK
CHANNEL
00000
Tri-State
00001
Channel 0
00010
Channel 1
00011
Channel 2
00100
Channel 3
00101
Channel 4
00110
Channel 5
00111
Channel 6
01000
Channel 7
01001
Channel 8
01010
Channel 9
01011
Channel 10
01100
Channel 11
01101
Channel 12
01110
Channel 13
01111
Channel 14
10000
Channel 15
10001
Channel 16
10010
Channel 17
10011
Channel 18
10100
Channel 19
10101
Channel 20
10110 - 11111
Tri-State
115
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
TABLE 38: CHANNEL INTERRUPT INDICATION REGISTER 11 (CHIIR11 0X0054H)
BIT7
BIT6
BIT5
BIT4
BIT3
BIT2
Reserved
BIT1
BIT0
E1_SLOT[20:18]
R
R
R
R
R
R
R
R
0
0
0
0
0
0
0
0
BIT [7:3] - Reserved
BIT [2:0] - Each bit indicates an interrupt has been generated by the corresponding E1 slot
TABLE 39: CHANNEL INTERRUPT INDICATION REGISTER 10 (CHIIR10 0X0055H)
BIT7
BIT6
Reserved
BIT5
BIT4
BIT3
E1_SLOT[17:15]
BIT2
Reserved
BIT1
BIT0
E1_SLOT[14:12]
R
R
R
R
R
R
R
R
0
0
0
0
0
0
0
0
BIT [6:4] - Each bit indicates an interrupt has been generated by the corresponding E1 slot
BIT [2:0] - Each bit indicates an interrupt has been generated by the corresponding E1 slot
TABLE 40: CHANNEL INTERRUPT INDICATION REGISTER 9 (CHIIR9 0X0056H)
BIT7
BIT6
Reserved
BIT5
BIT4
BIT3
E1_SLOT[11:9]
BIT2
Reserved
BIT1
BIT0
E1_SLOT[8:6]
R
R
R
R
R
R
R
R
0
0
0
0
0
0
0
0
BIT [6:4] - Each bit indicates an interrupt has been generated by the corresponding E1 slot
BIT [2:0] - Each bit indicates an interrupt has been generated by the corresponding E1 slot
TABLE 41: CHANNEL INTERRUPT INDICATION REGISTER 8 (CHIIR8 0X0057H)
BIT7
BIT6
Reserved
BIT5
BIT4
BIT3
E1_SLOT[5:3]
BIT2
Reserved
BIT1
BIT0
E1_SLOT[2:0]
R
R
R
R
R
R
R
R
0
0
0
0
0
0
0
0
BIT [6:4] - Each bit indicates an interrupt has been generated by the corresponding E1 slot
BIT [2:0] - Each bit indicates an interrupt has been generated by the corresponding E1 slot
116
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 42: CHANNEL INTERRUPT INDICATION REGISTER 7 (CHIIR7 0X0058H)
BIT7
BIT6
BIT5
BIT4
BIT3
BIT2
Reserved
BIT1
BIT0
E1_LIU_SLOT[20:18]
R
R
R
R
R
R
R
R
0
0
0
0
0
0
0
0
BIT [7:3] - Reserved
BIT [2:0] - Each bit indicates an interrupt has been generated by the corresponding E1 LIU Channel slot
TABLE 43: CHANNEL INTERRUPT INDICATION REGISTER 6 (CHIIR6 0X0059H)
BIT7
BIT6
Reserved
BIT5
BIT4
BIT3
E1_LIU_SLOT[17:15]
BIT2
Reserved
BIT1
BIT0
E1_LIU_SLOT[14:12]
R
R
R
R
R
R
R
R
0
0
0
0
0
0
0
0
BIT [6:4] - Each bit indicates an interrupt has been generated by the corresponding E1 LIU Channel slot
BIT [2:0] - Each bit indicates an interrupt has been generated by the corresponding E1LIU Channel slot
TABLE 44: CHANNEL INTERRUPT INDICATION REGISTER 5 (CHIIR5 0X005AH)
BIT7
BIT6
Reserved
BIT5
BIT4
BIT3
E1_LIU_SLOT[11:9]
BIT2
Reserved
BIT1
BIT0
E1_LIU_SLOT[8:6]
R
R
R
R
R
R
R
R
0
0
0
0
0
0
0
0
BIT [6:4] - Each bit indicates an interrupt has been generated by the corresponding E1 LIU Channel slot
BIT [2:0] - Each bit indicates an interrupt has been generated by the corresponding E1 LIU Channel slot
TABLE 45: CHANNEL INTERRUPT INDICATION REGISTER 4 (CHIIR4 0X005BH)
BIT7
BIT6
Reserved
BIT5
BIT4
BIT3
E1_LIU_SLOT[5:3]
BIT2
Reserved
BIT1
BIT0
E1_LIU_SLOT[2:0]
R
R
R
R
R
R
R
R
0
0
0
0
0
0
0
0
BIT [6:4] - Each bit indicates an interrupt has been generated by the corresponding E1 LIU Channel slot
BIT [2:0] - Each bit indicates an interrupt has been generated by the corresponding E1 LIU Channel slot
117
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
TABLE 46: CHANNEL INTERRUPT INDICATION REGISTER 3 (CHIIR3 0X005CH)
BIT7
BIT6
BIT5
BIT4
BIT3
BIT2
Reserved
BIT1
BIT0
VT_SLOT[20:18]
R
R
R
R
R
R
R
R
0
0
0
0
0
0
0
0
BIT [7:3] - Reserved
BIT [2:0] - Each bit indicates an interrupt has been generated by the corresponding VT channel slot.
TABLE 47: CHANNEL INTERRUPT INDICATION REGISTER 2 (CHIIR2 0X005DH)
BIT7
BIT6
Reserved
BIT5
BIT4
BIT3
VT_SLOT[17:15]
BIT2
Reserved
BIT1
BIT0
VT_SLOT[14:12]
R
R
R
R
R
R
R
R
0
0
0
0
0
0
0
0
BIT [6:4] - Each bit indicates an interrupt has been generated by the corresponding VT channel slot.
BIT [2:0] - Each bit indicates an interrupt has been generated by the corresponding VT channel slot.
TABLE 48: CHANNEL INTERRUPT INDICATION REGISTER 1 (CHIIR1 0X005EH)
BIT7
BIT6
Reserved
BIT5
BIT4
BIT3
VT_SLOT[11:9]
BIT2
Reserved
BIT1
BIT0
VT_SLOT[8:6]
R
R
R
R
R
R
R
R
0
0
0
0
0
0
0
0
BIT [6:4] - Each bit indicates an interrupt has been generated by the corresponding VT channel slot.
BIT [2:0] - Each bit indicates an interrupt has been generated by the corresponding VT channel slot.
TABLE 49: CHANNEL INTERRUPT INDICATION REGISTER 0 (CHIIR0 0X005FH)
BIT7
BIT6
Reserved
BIT5
BIT4
BIT3
VT_SLOT[5:3]
BIT2
Reserved
BIT1
BIT0
VT_SLOT[2:0]
R
R
R
R
R
R
R
R
0
0
0
0
0
0
0
0
BIT [6:4] - Each bit indicates an interrupt has been generated by the corresponding VT channel slot.
BIT [2:0] - Each bit indicates an interrupt has been generated by the corresponding VT channel slot.
118
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
6.4
REV. 1.0.1
Receive Transport Overhead Operation Control Register Descriptions
TABLE 50: RECEIVE STM-0/STM-1 TRANSPORT CONTROL REGISTER 1 (RTCR1 = 0X0202)
BIT7
BIT6
BIT 5
BIT 4
BIT 3
Unused
BIT 2
BIT 1
BIT 0
Sync on B1
Unused
No OH
Extract
R/O
R/O
R/O
R/O
R/O
R/W
R/O
R/W
0
0
0
0
0
0
0
0
BIT [7:3] - Unused
BIT 2 - Sync on B1
This bit is used to enable B1 verification as part of the synchronization process. SYNC_ON_B1 can only be declared
after 2 consecutive correct B1 bytes after A1 and A2 have been identified.
0 - Disabled
1 - Enabled
BIT 1 - Unused
BIT 0 - No Overhead Data Extract
This bit is used to disable TOH extraction. By default, TOH extraction is enabled.
0 - TOH Extraction Occurs
1 - TOH Extraction Disabled
TABLE 51: RECEIVE STM-0/STM-1 TRANSPORT CONTROL REGISTER 0 (RTCR0 = 0X0203)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
Unused
SF Defect
Condition
Detect
Enable
SD Defect
Condition
Detect
Enable
DescrambleDisable
SONET/SDH
REI-LError
Type
B2 ErrorType
B1 Error
Type
R/O
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT 7 - Unused
BIT 6 - Signal Failure (SF) Defect Condition Detect Enable
This READ/WRITE bit-field is used to enable or disable SF Defect Detection and Declaration by the Receive STM-0/
STM-1 TOH Processor block.
0 - Configures the Receive STM-0/STM-1 TOH Processor block to NOT declare nor clear the SF defect condition per
the user-specified SF defect declaration and clearance criteria.
1 - Configures the Receive STM-0/STM-1 TOH Processor block to declare and clear the SF defect condition per the
user-specified SF defect declaration and clearance criteria.
BIT 5 - Signal Degrade (SD) Defect Condition Detect Enable
This READ/WRITE bit-field is used to enable or disable SD Detection and Declaration by the Receive STM-0/STM-1
TOH Processor block.
0 - Configures the Receive STM-0/STM-1 TOH Processor block to NOT declare nor clear the SD defect condition per
the user-specified SD defect declaration and clearance criteria.
1 - Configures the Receive STM-0/STM-1 TOH Processor block to declare and clear the SD defect condition per the
user-specified SD defect declaration and clearance criteria.
119
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
BIT 4 - De-Scramble Disable
This READ/WRITE bit-field is used to either enable or disable de-scrambling by the Receive STM-0/STM-1 TOH
Processor block, associated with channel N.
0 - De-Scrambling is enabled.
1 - De-Scrambling is disabled.
BIT 3 - SONET/SDH Select
This bit is used to select between SONET processing or SDH processing.
0 - SONET Processing
1 - SDH Processing
BIT 2 - REI-L Error Type
This READ/WRITE bit-field is used to specify how the Receive STM-0/STM-1 TOH Processor block will count (or tally)
REI-L events, for Performance Monitoring purposes. The user can configure the Receive STM-0/STM-1 TOH
Processor block to increment REI-L events on either a per-bit or per-frame basis.
If the user configures the Receive STM-0/STM-1 TOH Processor block to increment REI-L events on a per-bit basis,
then it will incrememt the Receive STM-0/STM-1 Transport REI-L Error Count register by the value of the lower nibble
within the M0/M1 byte of the incoming STM-0 data-stream.
If the user configures the Receive STM-0/STM-1 TOH Processor block to increment REI-L events on a per-frame basis,
then it will increment the Receive STM-0/STM-1 Transport REI-L Error Count register each time it receives an STM-0
or STM-1 frame, in which the lower nibble of the M0/M1 byte is set to a non-zero value.
0 - Configures the Receive STM-0/STM-1 TOH Processor block to count or tally REI-L events on a per-bit basis.
1 - Configures the Receive STM-0/STM-1 TOH Processor block to count or tally REI-L events on a per-frame basis.
BIT 1 - B2 Error Type
This READ/WRITE bit-field is used to specify how the Receive STM-0 TOH Processor block will count (or tally) B2 byte
errors, for Performance Monitoring purposes. The user can configure the Receive STM-0 TOH Processor block to
increment B2 byte errors on either a per-bit or a per-frame basis.
If the user configures the Receive STM-0 TOH Processor block to increment B2 byte errors on a per-bit basis, then it
will increment the Receive Transport B2 Byte Error Count register by the number of bits (within the B2 byte value) that
is in error.
If the user configures the Receive STM-0 TOH Processor block to increment B2 byte errors on a per-frame basis, then
it will increment the Receive Transport B2 Byte Error Count register each time it receives an STM-0 frame that contains
an erred B2 byte.
0 - Configures the Receive STM-0 TOH Processor block to count B2 byte errors on a per-bit basis.
1 - Configures the Receive STM-0 TOH Processor block to count B2 byte errors on a per-frame basis.
BIT 0 - B1 Error Type
This READ/WRITE bit-field is used to specify how the Receive STM-0 TOH Processor block will count (or tally) B1 byte
errors, for Performance Monitoring purposes. The user can configure the Receive STM-0 TOH Processor block to
increment B1 byte errors on either a per-bit or per-frame basis.
If the user configures the Receive STM-0 TOH Processor block to increment B1 byte errors on a per-bit basis, then it
will increment the Receive Transport B1 Byte Error Count register by the number of bits (within the B1 byte value) that
is in error.
If the user configures the Receive STM-0 TOH Processor block to increment B1 byte errors on a per-frame basis, then
it will increment the Receive Transport B1 Byte Error Count Register each time it receives an STM-0 frame that contains
an erred B1 byte.
0 - Configures the Receive STM-0 TOH Processor block to count B1 byte errors on a per-bit basis.
1 - Configures the Receive STM-0 TOH Processor block to count B1 byte errors on a per-frame basis.
120
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 52: RECEIVE STM-0/STM-1 TRANSPORT STATUS REGISTER 1 (RTSR1 = 0X0206)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
Unused
BIT 2
BIT 1
Section Trace
Section Trace
Message (J0)
Message (J0)
Mismatch
Unstable Defect
Defect Declared
Declared
BIT 0
AIS-L Defect
Declared
R/O
R/O
R/O
R/O
R/O
R/O
R/O
R/O
0
0
0
0
0
0
0
0
BIT [7:3] - Unused
BIT 2 - Section Trace Message Mismatch Defect Declared
This READ-ONLY bit-field indicates whether or not the Receive STM-0 TOH Processor block is currently declaring the
Section Trace Mismatch defect condition. The Receive STM-0 TOH Processor block will declare the Section Trace
Message Mismatch defect condition, whenever it accepts a Section Trace Message (via the J0 byte, within the incoming
STM-0 data-stream) that differs from the Expected Section Trace Message.
0 - Indicates that the Section Trace Message Mismatch Defect Condition is NOT currently being declared.
1 - Indicates that the Section Trace Message Mismatch Defect Condition is currently being declared.
BIT 1 - Section Trace Message Unstable Defect Declared
This READ-ONLY bit-field indicates whether or not the Receive STM-0 TOH Processor block is currently declaring the Section Trace Message Unstable Defect condition. The Receive STM-0 TOH Processor block will declare the Section Trace
Message Unstable defect condition, whenever the Section Trace Message Unstable counter reaches the value 8.
The Section Trace Message Unstable counter will be incremented for each time that it receives a Section Trace message
that differs from the Expected Section Trace Message.
The Section Trace Message Unstable counter is cleared to 0 whenever the Receive STM-1 TOH Processor block has
received a given Section Trace Message 3 (or 5) consecutive times.
NOTE: Receiving a given Section Trace Message 3 (or 5) consecutive times also sets this bit-field to 0.
0 - Section Trace Message Unstable defect condition is NOT currently being declared.
1 - Section Trace Message Unstable defect condition is currently being declared.
BIT 0 - AIS-L Defect Declared
This READ-ONLY bit-field indicates whether or not the Receive STM-0 TOH Processor block is currently declaring the
AIS-L (Line AIS) defect condition. The Receive STM-0 TOH Processor block will declare the AIS-L defect condition
within the incoming STM-0 data stream if bits 6, 7 and 8 (e.g., the Least Significant Bits, within the K2 byte) are set to
the value [1, 1, 1] for five consecutive STM-0 frames.
0 - Indicates that the AIS-L defect condition is NOT currently being declared.
1 - Indicates that the AIS-L defect condition is currently being declared.
121
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 53: RECEIVE STM-0/STM-1 TRANSPORT STATUS REGISTER 0 (RTSR0 = 0X0207)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
RDI-L Defect
Declared
S1 Byte
Unstable
Defect
Declared
K1, K2 Byte
Unstable
Defect
Declared
SF Defect
Declared
SD Defect
Declared
LOFDefect
Detected
SEFDefect
Declared
LOSDefect
Declared
R/O
R/O
R/O
R/O
R/O
R/O
R/O
R/O
0
0
0
0
0
0
0
0
BIT 7 - RDI-L Defect Declared Indicator
This READ-ONLY bit-field indicates whether or not the Receive STM-0 TOH Processor block is detecting the RDI-L
(Line-Remote Defect Indicator) defect condition, within the incoming STM-0 signal. The Receive STM-0 TOH Processor
block will declare the RDI-L defect condition whenever bits 6, 7 and 8 (e.g., the three least significant bits) of the K2 byte
contains the 1, 1, 0 pattern in 5 consecutive incoming STM-0 frames.
0 - Indicates that the RDI-L defect condition is NOT currently being declared.
1 - Indicates that the RDI-L defect condition is currently being declared.
BIT 6 - S1 Byte Unstable Defect Declared
This READ-ONLY bit-field indicates whether or not the Receive STM-0 TOH Processor block is currently declaring the
S1 Byte Unstable defect condition. The Receive STM-0 TOH Processor block will declare the S1 Byte Unstable defect
condition whenever the S1 Byte Unstable Counter reaches the value 32. The S1 Byte Unstable Counter is incremented
for each time that the Receive STM-0 TOH Processor block receives an STM-0 frame that contains an S1 byte that
differs from the previously received S1 byte. The S1 Byte Unstable Counter is cleared to 0 when the same S1 byte is
received for 8 consecutive STM-0 frames.
NOTE: Receiving a given S1 byte, in 8 consecutive STM-0 frames also sets this bit-field to 0.
0 - Indicates that the S1 Byte Unstable Defect Condition is NOT currently being declared.
1 - Indicates that the S1 Byte Unstable Defect Condition is currently being declared.
BIT 5 - K1, K2 Byte Unstable Defect Declared
This READ-ONLY bit-field indicates whether or not the Receive STM-0 TOH Processor block is currently declaring the
K1, K2 Byte Unstable defect condition. The Receive STM-0 TOH Processor block will declare the K1, K2 Byte Unstable
defect condition whenever the Receive STM-0 TOH Processor block fails to receive the same set of K1, K2 bytes, in 12
consecutive incoming STM-0 frames. The K1, K2 Byte Unstable defect condition is cleared whenever the Receive
STM-0 TOH Processor block has received a given set of K1, K2 byte values within three consecutive incoming STM-0
frames.
0 - Indicates that the K1, K2 Byte Unstable Defect Condition is NOT currently being declared.
1 - Indicates that the K1, K2 Byte Unstabel Defect Condition is currently being declared.
BIT 4 - SF (Signal Failure) Defect Declared
This READ-ONLY bit-field indicates whether or not the Receive STM-0 TOH Processor block is currently declaring the
SF defect condition. The Receive STM-0 TOH Processor block will declare the SF defect condition anytime it has
determined that the number of B2 byte errors (measured over a user-selected period of time) exceeds a certain userspecified B2 Byte Error threshold.
0 - Indicates that the SF Defect condition is NOT currently being declared.
This bit is set to 0 when the number of B2 byte errors (accumulated over a given interval of time) does not exceed the
SF Defect Declaration threshold.
1 - Indicates that the SF Defect condition is currently being declared.
This bit is set to 1 when the number of B2 errors (accumulated over a given interval of time) does exceed the SF Defect
Declaration threshold.
BIT 3 - SD (Signal Degrade) Defect Declared
This READ-ONLY bit-field indicates whether or not the Receive STM-0 TOH Processor block is currently declaring the
SD defect condition. The Receive STM-0 TOH Processor block will declare the SD defect condition anytime it has
122
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
determined that the number of B2 byte errors (measured over a user-selected period of time) exceeds a certain userspecified B2 Byte Error threshold.
0 - Indicates that the SD Defect condition is NOT currently being declared.
This bit is set to 0 when the number of B2 errors (accumulated over a given interval of time) does not exceed the SD
Declaration threshold.
1 - Indicates that the SD Defect condition is currently being declared.This bit is set to 1 when the number of B2 errors
(accumulated over a given interval of time) does exceed the SD Defect Declaration threshold.
BIT 2 - LOF (Loss of Frame) Defect Declared
This READ-ONLY bit-field indicates whether or not the Receive STM-0 TOH Processor block is currently declaring the
LOF defect condition. The Receive STM-0 TOH Processor block will declare the LOF defect condition if it has been
declaring the SEF condition for 24 consecutive STM-0 frame periods. Once the LOF defect is declared, then the
Receive STM-0 TOH Processor block will clear the LOF defect if it has not been declaring the SEF condition for 3ms
(or 24 consecutive STM-0 frame periods).
0 - Indicates that the Receive STM-0 TOH Processor block is NOT currently declaring the LOF defect condition.
1 - Indicates that the Receive STM-0 TOH Processor block is currently declaring the LOF defect condition.
BIT 1 - SEF (Severely Errored Frame) Defect Declared
This READ-ONLY bit-field indicates whether or not the Receive STM-0 TOH Processor block is currently declaring the
SEF defect condition. The Receive STM-0 TOH Processor block will declare the SEF defect condition if it detects
Framing Alignment byte errors in four consecutive STM-0 frames. Once the Receive TOH Processor block declares
the SEF defect condition, the Receive STM-0 TOH Processor block will then clear the SEF defect condition if it detects
two consecutive STM-0 frames with un-erred framing alignment bytes. If the Receive TOH Processor block declares
the SEF defect condition for 24 consecutive STM-0 frame periods, then it will declare the LOF defect condition.
0 - Indicates that the Receive STM-0 TOH Processor block is NOT currently declaring the SEF defect condition.
1 - Indicates that the Receive STM-0 TOH Processor block is currently declaring the SEF defect condition.
BIT 0 - LOS (Loss of Signal) Defect Declared
This READ-ONLY bit-field indicates whether or not the Receive STM-0 TOH Processor block is currently declaring the
LOS (Loss of Signal) defect condition. The Receive STM-0 TOH Processor block will declare the LOS defect condition
if it detects LOS_THRESHOLD[15:0] consecutive All Zero bytes in the incoming STM-0 data stream.
NOTE: The user can set the LOS_THRESHOLD[15:0] value by writing the appropriate data into the Receive STM-0
Transport - LOS Threshold Value Register (Address Location= 0x022E and 0x022F).
0 - Indicates that the Receive STM-0 TOH Processor block is NOT currently declaring the LOS defect condition.
1 - Indicates that the Receive STM-0 TOH Processor block is currently declaring the LOS defect condition.
123
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
TABLE 54: RECEIVE STM-0/STM-1 TRANSPORT INTERRUPT STATUS REGISTER 2 (RTISR2 = 0X0209)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
Unused
BIT 1
BIT 0
Change of
AIS-LDefect
Condition
Interrupt
Status
Change of
RDI-L Defect
Condition
Interrupt
Status
R/O
R/O
R/O
R/O
R/O
R/O
RUR
RUR
0
0
0
0
0
0
0
0
BIT [7: 2] - Unused
BIT 1 - Change of AIS-L (Line AIS) Defect Condition Interrupt Status
This RESET-upon-READ bit-field indicates whether or not the Change of AIS-L Defect Condition interrupt has occurred
since the last read of this register. The Receive STM-0 TOH Processor block will generate this interrupt in response to
either of the following occurrences.· Whenever the Receive STM-0 TOH Processor block declares the AIS-L defect
condition.· Whenever the Receive STM-0 TOH Processor block clears the AIS-L defect condition.
0 - Indicates that the Change of AIS-L Defect Condition interrupt has not occurred since the last read of this register.
1 - Indicates that the Change of AIS-L Defect Condition interrupt has occurred since the last read of this register.
NOTE: The user can obtain the current state of the AIS-L defect condition by reading the contents of BIT 0 (AIS-L
Defect Declared) within the Receive STM-0 Transport Status Register - Byte 1 (Address Location= 0x0206).
BIT 0 - Change of RDI-L (Line - Remote Defect Indicator) Defect Condition Interrupt Status
This RESET-upon-READ bit-field indicates whether or not the Change of RDI-L Defect Condition interrupt has occurred
since the last read of this register. The Receive STM-0 TOH Processor block will generate this interrupt in response to
either of the following occurrences.
•
Whenever the Receive STM-0 TOH Processor block declares the RDI-L defect condition.·
•
Whenever the Receive STM-0 TOH Processor block clears the RDI-L defect condition.
0 - Indicates that the Change of RDI-L Defect Condition interrupt has not occurred since the last read of this register.
1 - Indicates that the Change of RDI-L Defect Condition interrupt has occurred since the last read of this register.Note:
NOTE: The user can obtain the current state of the RDI-L defect condition by reading out the state of BIT7 (RDI-L
Defect Declared) within the Receive STM-0 Transport Status Register - Byte 0 (Address Location= 0x0207).
124
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 55: RECEIVE STM-0/STM-1 TRANSPORT INTERRUPT STATUS REGISTER 1 (RTISR1 = 0X020A)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
New S1
ByteInterrupt Status
Change in
S1 Byte
UnstableDefect ConditionInterrupt
Status
Change in
Section
Trace Message Unstable Defect
Condition
Interrupt Status
New Section
Trace Message Interrupt Status
Change in
Section
Trace Message MismatchDefect
Declared
Interrupt Status
Unused
RUR
RUR
RUR
RUR
RUR
R/O
RUR
RUR
0
0
0
0
0
0
0
0
Change in
NEW K1K2
K1, K2 Byte
Byte Value
Unstable
Interrupt StaDefect Condtus
tion Interrupt
Status
BIT 7 - New S1 Byte Value Interrupt Status
This RESET-upon-READ bit-field indicates whether or not the New S1 Byte Value Interrupt has occurred since the last
read of this register. The Receive STM-0 TOH Processor block will generate the New S1 Byte Value Interrupt, anytime
it has accepted a new S1 byte, from the incoming STM-0 data-stream.
0 - Indicates that the New S1 Byte Value Interrupt has NOT occurred since the last read of this register.
1 - Indicates that the New S1 Byte Value interrupt has occurred since the last read of this register.
NOTE: The user can obtain the value for this most recently accepted value of the S1 byte by reading the Receive STM0 Transport S1 Byte Value register (Address Location= 0x0227).
BIT 6 - Change in S1 Byte Unstable Defect Condition Interrupt Status
This RESET-upon-READ bit-field indicates whether or not the Change in S1 Byte Unstable Defect Condition Interrupt
has occurred since the last read of this register. The Receive STM-0 TOH Processor block will generate this interrupt
in response to either of the following events.
•
Whenever the Receive STM-0 TOH Processor block declares the S1 Byte Unstable defect condition.
•
Whenever the Receive STM-0 TOH Processor block clears the S1 Byte Unstable defect condition.
0 - Indicates that the Change in S1 Byte Unstable Defect Condition Interrupt has occurred since the last read of this
register.
1 - Indicates that the Change in S1 Byte Unstable Defect Condition Interrupt has not occurred since the last read of
this register.
NOTE: The user can obtain the current S1 Byte Unstable Defect condition by reading the contents of BIT6 (S1 Byte
Unstable Defect Declared) within the Receive STM-0 Transport Status Register - Byte 0 (Address Location=
0x0207).
BIT 5 - Change in Section Trace Message Unstable Defect condition Interrupt Status
This RESET-upon-READ bit-field indicates whether or not the Change in Section Trace Message Unstable defect
condition interrupt has occurred since the last read of this register. The Receive STM-0 TOH Processor block will
generate this interrupt in response to either of the following events.
•
Whenever the Receive STM-0 TOH Processor block declares the Section Trace Message Unstable defect
condition.
•
Whenever the Receive STM-0 TOH Processor block clear the Section Trace Message Unstable defect
condition.
Indicates that the Change in Section Trace Message Unstable defect condition interrupt has not occurred since the
last read of this register.
1 - Indicates that the Change in Section Trace Message Unstable defect condition interrupt has occurred since the
last read of this register.
BIT 4 - New Section Trace Message Interrupt Status
This RESET-upon-READ bit-field indicates whether or not the New Section Trace Message interrupt has occurred since
the last read of this register. The Receive STM-0 TOH Processor block will generate this interrupt anytime it has
accepted a new Section Trace Message within the incoming STM-0 data-stream.
125
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
0 - Indicates that the New Section Trace Message Interrupt has not occurred since the last read of this register.
1 - Indicates that the New Section Trace Message Interrupt has occurred since the last read of this register.
NOTE: The user can read out the contents of the Receive Section Trace Message Buffer, which is located at Address
Locations 0x0300 through 0x033F).
BIT 3 - Change in Section Trace Message Mismatch Defect Condition Interrupt Status
This RESET-upon-READ bit-field indicates whether or not the Change in Section Trace Mismatch Defect Condition
interrupt has occurred since the last read of this register. The Receive STM-0 TOH Processor block will generate this
interrupt in response to either of the following events.· Whenever the Receive STM-0 TOH Processor block declares
the Section Trace Message Mismatch defect condition· Whenever the Receive STM-0 TOH Processor block clears the
Section Trace Mismatch defect condition.
0 - Indicates that the Change in Section Trace Message Mismatch Defect Condition interrupt has not occurred since
the last read of this register.
1 - Indicates that the Change in Section Trace Message Mismatch Defect Condition interrupt has occurred since the
last read of this register.
NOTE: The user can determine whether the Section Trace Message Mismatch condition is currently cleared or
declared by reading the state of BIT 2 (Section Trace Message Mismatch Defect Declared) within the Receive
STM-0 Transport Status Register - Byte 1 (Address Location= 0x0206).
BIT 2 - Unused
BIT 1 - Change in K1, K2 Byte Unstable Defect Condition Interrupt Status
This RESET-upon-READ bit-field indicates whether or not the Change in K1, K2 Byte Unstable Defect Condition
interrupt has occurred since the last read of this register. The Receive STM-0 TOH Processor block will generate this
interrupt in response to either of the following events.
•
Whenever the Receive STM-0 TOH Processor block declares the K1, K2 Byte Unstable Defect condition.
•
Whenever the Receive STM-0 TOH Processor block clears the K1, K2 Byte Unstable Defect condition.
0 - Indicates that the Change of K1, K2 Byte Unstable Defect Condition interrupt has NOT occurred since the last read
of this register.
1 - Indicates that the Change of K1, K2 Byte Unstable Defect Condition interrupt has occurred since the last read of
this register.
NOTE: The user can determine whether the K1, K2 Byte Unstable Defect Condition is currently being declared or
cleared by reading out the contents of BIT 5 (K1, K2 Byte Unstable Defect Declared), within the Receive STM0 Transport Status Register - Byte 0 (Address Location= 0x0207).
BIT 0 - New K1, K2 Byte Value Interrupt Status
This RESET-upon-READ bit-field indicates whether or not the New K1, K2 Byte Value Interrupt has occurred since the
last read of this register. The Receive STM-0 TOH Processor block will generate this interrupt whenever its has
accepted a new set of K1, K2 byte values from the incoming STM-0 data-stream
0 - Indicates that the New K1, K2 Byte Value Interrupt has NOT occurred since the last read of this register.
1 - Indicates that the New K1, K2 Byte Value Interrupt has occurred since the last read of this register.
NOTE: The user can obtain the contents of the new K1 byte by reading out the contents of the Receive STM-0
Transport K1 Byte Value Register (Address Location= 0xN11F). Further, the user can also obtain the contents
of the new K2 byte by reading out the contents of the Receive STM-0 Transport K2 Byte Value Register
(Address Location= 0x0223).
126
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 56: RECEIVE STM-0/STM-1 TRANSPORT INTERRUPT STATUS REGISTER 0 (RTISR0 = 0X020B)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
Change of
SF Defect
ConditionInterrupt Status
Change of
SD Defect
Condition
Interrupt Status
Detection of
REI-L Event
Error Interrupt Status
Detection of
B2 Byte
Error Interrupt Status
Detection of
B1 Byte
Error Interrupt Status
RUR
RUR
RUR
RUR
RUR
RUR
RUR
RUR
0
0
0
0
0
0
0
0
Change of
Change of
LOF Defect
SEF Defect
Condition
Interrupt StaInterrupt Status
tus
BIT 0
Change of
LOS Defect
Condition
Interrupt Status
BIT 7 - Change of Signal Failure (SF) Defect Condition Interrupt Status
This RESET-upon-READ bit-field indicates whether or not the Change of SF Defect Condition Interrupt has occurred
since the last read of this register. The Receive STM-0 TOH Processor block will generate this interrupt in response to
either of the following events.
•
Whenever the Receive STM-0 TOH Processor block declares the SF Defect Condition.
•
Whenever the Receive STM-0 TOH Processor block clears the SF Defect Condition.
0 - Indicates that the Change of SF Defect Condition Interrupt has NOT occurred since the last read of this register.
1 - Indicates that the Change of SF Defect Condition Interrupt has occurred since the last read of this register.
NOTE: The user can determine whether or not the SF defect condition is currently being declared by reading out the
state of BIT 4( SF Defect Declared) within the Receive STM-0 Transport Status Register - Byte 0 (Address
Location= 0x0207).
BIT 6 - Change of Signal Degrade (SD) Defect Condition Interrupt Status
This RESET-upon-READ bit-field indicates whether or not the Change of SD Defect Condition Interrupt has occurred
since the last read of this register. The Receive STM-0 TOH Processor block will generate this interrupt in response to
either of the following events.
•
Whenver the Receive STM-0 TOH Processor block declares the SD Defect Condition.
•
Whenever the Receive STM-0 TOH Processor block clears the SD Defect Condition.
0 - Indicates that the Change of SD Defect Condition Interrupt has NOT occurred since the last read of this register.
1 - Indicates that the Change of SD Defect Condition Interrupt has occurred since the last read of this register.
NOTE: The user can determine whether or not the SD Defect condition is currently being declareds by reading out the
state of BIT 3 (SD Defect Declared) within the Receive STM-0 Transport Status Register - Byte 0 (Address
Location= 0x0207).
BIT 5 - Detection of REI-L (Line - Remote Error Indicator) Event Interrupt Status
This RESET-upon-READ bit-field indicates whether or not the Detection of REI-L Event Interrupt has occurred since the
last read of this register. The Receive STM-0 TOH Processor block will generate this interrupt anytime it detects an
REI-L event within the incoming STM-0 data-stream.
0 - Indicates that the Detection of REI-L Event Interrupt has NOT occurred since the last read of this register.
1 - Indicates that the Detection of REI-L Event Interrupt has occurred since the last read of this register.
BIT 4 - Detection of B2 Byte Error Interrupt Status
This RESET-upon-READ bit-field indicates whether or not the Detection of B2 Byte Error Interrupt has occurred since
the last read of this register. The Receive STM-0 TOH Processor block will generate this interrupt anytime it detects a
B2 byte error within the incoming STM-0 data-stream.
0 - Indicates that the Detection of B2 Byte Error Interrupt has NOT occurred since the last read of this register.
1 - Indicates that the Detection of B2 Byte Error Interrupt has occurred since the last read of this register.
BIT 3 = Detection of B1 Byte Error Interrupt Status
This RESET-upon-READ bit-field indicates whether or not the Detection of B1 Byte Error Interrupt has occurred since
the last read of this register. The Receive STM-0 TOH Processor block will generate this interrupt anytime it detects a
B1 byte error within the incoming STM-0 data-stream.
127
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
0 - Indicates that the Detection of B1 Byte Error Interrupt has NOT occurred since the last read of this register.
1 - Indicates that the Detection of B1 Byte Error Interrupt has occurred since the last read of this register
BIT 2 - Change of Loss of Frame (LOF) Defect Condition Interrupt Status
This RESET-upon-READ bit-field indicates whether or not the Change of LOF Defect Condition interrupt has occurred
since the last read of this register. The Receive STM-0 TOH Processor block will generate this interrupt in response to
either of the following events.
•
Whenever the Receive STM-0 TOH Processor block declares the LOF Defect condition.
•
Whenever the Receive STM-0 TOH Processor block clears the LOF Defect condition.
0 - Indicates that the Change of LOF Defect Condition interrupt has NOT occurred since the last read of this register.
1 - Indicates that the Change of LOF Defect Condition interrupt has occurred since the last read of this register.
NOTE: The user can determine whether or not the Receive STM-0 TOH Processor block is currently declaring the LOF
defect condition by reading out the state of BIT 2 (LOF Defect Declared) within the Receive STM-0 Transport
Status Register - Byte 0 (Address Location= 0x0207).
BIT 1 - Change of SEF Defect Condition Interrupt Status
This RESET-upon-READ bit-field indicates whether or not the Change of SEF Defect Condition Interrupt has occurred
since the last read of this register. The Receive STM-0 TOH Processor block will generate this interrupt in response to
either of the following events.
•
Whenever the Receive STM-0 TOH Processor block declares the SEF defect condition.
•
Whenever the Receive STM-0 TOH Processor block clears the SEF defect condition.
0 - Indicates that the Change of SEF Defect Condition Interrupt has NOT occurred since the last read of this register.
1 - Indicates that the Change of SEF Defect Condition Interrupt has occurred since the last read of this register.
NOTE: The user can determine whether or not the Receive STM-0 TOH Processor block is currently declaring the SEF
defect condition by reading out the state of BIT 1 (SEF Defect Declared) within the Receive STM-0 Transport
Status Register - Byte 0 (Address Location= 0x0207).
BIT 0 - Change of Loss of Signal (LOS) Defect Condition Interrupt Status
This RESET-upon-READ bit-field indicates whether or not the Change of LOS Defect Condition interrupt has occurred
since the last read of this register. The Receive STM-0 TOH Processor block will generate this interrupt in response to
either of the following events.
•
Whenever the Receive STM-0 TOH Processor block declares the LOS defect condition.
•
Whenever the Receive STM-0 TOH Processor block clears the LOS defect condition.
0 - Indicates that the Change of LOS Defect Condition Interrupt has NOT occurred since the last read of this register.
1 - Indicates that the Change of LOS Defect Condition Interrupt has occurred since the last read of this register.
NOTE: The user can determine whether or not the Receive STM-0 TOH Processor block is currently declaring the LOS
defect condition by reading out the contents of BIT 0 (LOS Defect Declared) within the Receive STM-0
Transport Status Register - Byte 0 (Address Location= 0x0207).
128
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 57: RECEIVE STM-0/STM-1 TRANSPORT INTERRUPT ENABLE REGISTER 2 (RTIER2 = 0X020D)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
Unused
BIT 1
BIT 0
Change of
AIS-LDefect
Condition
Interrupt
Enable
Change of
RDI-LDefect
Condition
Interrupt
Enable
R/O
R/O
R/O
R/O
R/O
R/O
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:2] - Unused
BIT 1- Change of AIS-L (Line AIS) Defect Condition Interrupt Enable
This READ/WRITE bit-field is used to either enable or disable the Change of AIS-L Defect Condition interrupt. If this
interrupt is enabled, then the XRT86SH328 will generate an interrupt in response to either of the following conditions.
•
When the Receive STM-0 TOH Processor block declares the AIS-L defect condition.·
•
When the Receive STM-0 TOH Processor block clears the AIS-L defect condition.
0 - Disables the Change of AIS-L Defect Condition Interrupt.
1 - Enables the Change of AIS-L Defect Condition Interrupt.
BIT 0 - Change of RDI-L (Line Remote Defect Indicator) Defect Condition Interrupt Enable
This READ/WRITE bit-field is used to either enable or disable the Change of RDI-L Defect Condition interrupt. If this
interrupt is enabled, then the XRT86SH328 will generate an interrupt in response to either of the following conditions.·
When the Receive STM-0 TOH Processor block declares the RDI-L defect condition.· When the Receive STM-0 TOH
Processor block clears the RDI-L defect condition.
0 - Disables the Change of RDI-L Defect Condition Interrupt.
1 - Enables the Change of RDI-L Defect Condition Interrupt.
129
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 58: RECEIVE STM-0/STM-1 TRANSPORT INTERRUPT ENABLE REGISTER 1 (RTIER1 = 0X020E)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
New S1 Byte
Interrupt
Enable
Change in
S1 Byte
Unstable
Defect ConditionInterrupt Enable
Change in
Section
Trace Message Unstable Defect
Condition
Interrupt
Enable
New Section
Trace Message Interrupt Enable
Change in
Section
Trace Message Mismatch Defect
Condition
Interrupt
Enable
Unused
Change in
K1, K2 Byte
Unstable
Defect ConditionInterrupt Enable
New K1K2
Byte Value
Interrupt
Enable
R/W
R/W
R/W
R/W
R/W
R/O
R/W
R/W
0
0
0
0
0
0
0
0
BIT 7 - New S1 Byte Value Interrupt Enable
This READ/WRITE bit-field is used to enable or disable the New S1 Byte Value Interrupt.
If this interrupt is enabled, then the Receive STM-0 TOH Processor block will generate this interrupt anytime it receives
and accepts a new S1 byte value. The Receive STM-0 TOH Processor block will accept a new S1 byte after it has
received it for 8 consecutive STM-0 frames.
0 - Disables the New S1 Byte Value Interrupt.
1 - Enables the New S1 Byte Value Interrupt.
BIT 6 - Change in S1 Byte Unstable Defect Condition Interrupt Enable
This READ/WRITE bit-field is used to either enable or disable the Change in S1 Byte Unstable Defect Condition
Interrupt..
If the user enables this bit-field, then the Receive STM-0 TOH Processor block will generate an interrupt in response to
either of the following conditions
•
When the Receive STM-0 TOH Processor block declares the S1 Byte Unstable defect condition
•
When the Receive STM-0 TOH Processor block clears the S1 Byte Unstable defect condition.
0 - Disables the Change in S1 Byte Unstable Defect Condition Interrupt.
1 - Enables the Change in S1 Byte Unstable Defect Condition Interrupt.
BIT 5 - Change in Section Trace Message Unstable defect condition Interrupt Enable
This READ/WRITE bit-field is used to either enable or disable the Change in Section Trace Message Unstable Defect
Condition Interrupt.
If this interrupt is enabled, then the Receive STM-0 TOH Processor block will generate an interrupt in response to either
of the following conditions.
•
Whenever the Receive STM-0 TOH Processor block declares the Section Trace Message Unstable defect
condition.
•
Whenever the Receive STM-0 TOH Processor block clears the Section Trace Message Unstable defect
condition.
0 - Disable the Change of Section Trace Message Unstable defect condition Interrupt.
1 - Enables the Change of Section Trace Message Unstable defect condition Interrupt.
BIT 4 - New Section Trace Message Interrupt Enable
This READ/WRITE bit-field is used to enable or disable the New Section Trace Message interrupt.
If this interrupt is enabled, then the Receive STM-0 TOH Processor block will generate this interrupt anytime it receives
and accepts a new Section Trace Message within the incoming STM-0 data-stream. The Receive STM-0 TOH
Processor block will accept a new Section Trace Message after it has received it 3 (or 5) consecutive times.
0 - Disables the New Section Trace Message Interrupt.
1 - Enables the New Section Trace Message Interrupt.
130
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
BIT 3 - Change in Section Trace Mismatch Defect Condition interrupt enable:
This READ/WRITE bit-field is used to either enable or disable the Change in Section Trace Mismatch defect condition
interrupt.
If this interrupt is enabled, then the Receive STM-0 TOH Processor block will generate an interrupt in response to either
of the following events.
•
Whenever the Receive STM-0 TOH Processor block declares the Section Trace Message Mismatch Defect
condition.
•
whenever the Receive STM-0 TOH Processor block clears the Section Trace Message Mismatch defect
condition.
NOTE: The user can determine whether or not the Receive STM-0 TOH Processor block is currently declaring the
Section Trace Message Mismatch defect condition by reading the state of BIT 2 (Section Trace Message
Mismatch Defect Condition Declared) within the Receive STM-0 Transport Status Register - Byte 1 (Address
Location= 0x0206).
BIT 2 - Unused
BIT 1 - Change of K1, K2 Byte Unstable Defect Condition - Interrupt Enable
This READ/WRITE bit-field is used to either enable or disable the Change of K1, K2 Byte Unstable defect condition
interrupt. If this interrupt is enabled, then the Receive STM-0 TOH Processor block will generate an Interrupt in
response to either of the following events.a.Whenever the Receive STM-0 TOH Processor block declares the K1, K2
Byte Unstable defect condition. b.Whenever the Receive STM-0 TOH Processor block clears the K1, K2 Byte Unstable
defect condition.
0 - Disables the Change of K1, K2 Byte Unstable Defect Condition Interrupt.
1 - Enables the Change of K1, K2 Byte Unstable Defect Condition Interrupt.
BIT 0 - New K1, K2 Byte Value Interrupt Enable
This READ/WRITE bit-field is used to either enable or disable the New K1, K2 Byte Value Interrupt. If this interrupt is
enabled, then the Receive STM-0 TOH Processor block will generate this interrupt anytime it receives and accepts a
new K1, K2 byte value. The Receive STM-0 TOH Processor block will accept a new K1, K2 byte value, after it has
received it within 3 (or 5) consecutive STM-0 frames.
0 - Disables the New K1, K2 Byte Value Interrupt.
1 - Enables the New K1, K2 Byte Value Interrupt.
131
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
TABLE 59: RECEIVE STM-0/STM-1 TRANSPORT INTERRUPT STATUS REGISTER 0 (RTIER0 = 0X020F)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
Change of
SF DefectCondition
Interrupt
Enable
Change of
SD Defect
Condition
Interrupt
Enable
Detection of
REI-L Event
Interrupt
Enable
Detection of
B2 Byte
Error Interrupt Enable
Detection of
B1 Byte
Error Interrupt Enable
Change of
LOF Defect
Condition
Interrupt
Enable
Change of
SEF Defect
Condition
Interrupt
Enable
Change of
LOS Defect
Condition
Interrupt
Enable
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT 7 - Change of Signal Failure (SF) Defect Condition Interrupt Enable
This READ/WRITE bit-field is used to either enable or disable the Change of Signal Failure (SF) Defect Condition
Interrupt. If this interrupt is enabled, then the XRT86SH328 will generate an interrupt in response to any of the following
events.
•
Whenever the Receive STM-0 TOH Processor block declares the SF defect condition.
•
Whenever the Receive STM-0 TOH Processor block clears the SF defect condition.
0 - Disables the Change of SF Defect Condition Interrupt.
1 - Enables the Change of SF Defect Condition Interrupt.
BIT 6 - Change of Signal Degrade (SD) Defect Condition Interrupt Enable
This READ/WRITE bit-field is used to either enable or disable the Change of Signal Degrade (SD) Defect Condition
Interrupt. If this interrupt is enabled, then the XRT86SH328 will generate an interrupt in response to either of the
following events.
•
Whenever the Receive STM-0 TOH Processor blolck declares the SD defect condition.
•
Whenever the Receive STM-0 TOH Processor block clears the SD defect condition.
0 - Disables the Change of SD Defect Condition Interrupt.
1 - Enables the Change of SD Defect Condition Interrupt.
BIT 5 - Detection of REI-L (Line - Remote Error Indicator) Event Interrupt Enable
This READ/WRITE bit-field is used to either enable or disable the Detection of REI-L Event interrupt. If this interrupt is
enabled, then the XRT86SH328 will generate an interrupt anytime the Receive STM-0 TOH Processor block detects an
REI-L condition within the incoming STM-0 data-stream.
0 - Disables the Detection of REI-L Event Interrupt.
1 - Enables the Detection of REI-L Event Interrupt.
BIT 4 - Detection of B2 Byte Error Interrupt Enable
This READ/WRITE bit-field is used to either enable or disable the Detection of B2 Byte Error Interrupt. If this interrupt
is enabled, then the XRT86SH328 will generate an interrupt anytime the Receive STM-0 TOH Processor block detects
a B2 byte error within the incoming STM-0 data-stream.
0 - Disables the Detection of B2 Byte Error Interrupt.
1 - Enables the Detection of B2 Byte Error Interrupt.
BIT 3 - Detection of B1 Byte Error Interrupt Enable:
This READ/WRITE bit-field is used to either enable or disable the Detection of B1 Byte Error Interrupt. If this interrupt
is enabled, then the XRT86SH328 will generate an interrupt anytime the Receive STM-0 TOH Processor block detects
a B1 byte error within the incoming STM-0 data-stream.
0 - Disables the Detection of B1 Byte Error Interrupt.
1 - Enables the Detection of B1 Byte Error Interrupt.
BIT 2 - Change of Loss of Frame (LOF) Defect Condition Interrupt Enable
This READ/WRITE bit-field is used to either enable or disable the Change of LOF Defect Condition interrupt. If this
interrupt is enabled, then the XRT86SH328 will generate an interrupt in response to either of the following conditions
132
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
•
When the Receive STM-0 TOH Processor block declares the LOF defect condition
•
When the Receive STM-0 TOH Processor block clears the LOF defect condition.
REV. 1.0.1
0 - Disables the Change of LOF Defect Condition Interrupt.
1 - Enables the Change of LOF Defect Condition Interrupt.
BIT 1 - Change of SEF Defect Condition Interrupt Enable
This READ/WRITE bit-field is used to either enable or disable the Change of SEF Defect Condition Interrupt. If this
interrupt is enabled, then the XRT86SH328 will generate an interrupt in response to either of the following conditions.
•
When the Receive STM-0 TOH Processor block declares the SEF defect condition.
•
When the Receive STM-0 TOH Processor block clears the SEF defect condition.
0 - Disables the Change of SEF Defect Condition Interrupt.
1 - Enables the Change of SEF Defect Condition Interrupt.
BIT 0 - Change of Loss of Signal (LOS) Defect Condition Interrupt Enable
This READ/WRITE bit-field is used to either enable or disable the Change of LOF Defect Condition interrupt. If this
interrupt is enabled, then the XRT86SH328 will generate an interrupt in response to either of the following conditions.
•
When the Receive STM-0 TOH Processor block declares the LOF defect condition.
•
When the Receive STM-0 TOH Processor block clears the LOF defect condition.
0 - Disables the Change of LOF Defect Condition Interrupt.
1 - Enables the Change of LOF Defect Condition Interrupt.
TABLE 60: RECEIVE STM-0/STM-1 TRANSPORT - B1 BYTE ERROR COUNT REGISTER 3 (B1BECR3 = 0X0210)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
B1_Byte_Error_Count[31:24]
RUR
RUR
RUR
RUR
RUR
RUR
RUR
RUR
0
0
0
0
0
0
0
0
BIT [7:0] - B1 Byte Error Count - MSB
This RESET-upon-READ register, along with Receive STM-0 Transport - B1 Byte Error Count Register - Bytes 2
through 0, function as a 32 bit counter, which is incremented anytime the Receive STM-0 TOH Processor block detects
a B1 byte error.
NOTES:
1. If the Receive STM-0 TOH Processor Block is configured to count B1 byte errors on a per-bit basis, then
it will increment this 32 bit counter by the number of bits, within the B1 byte (of each incoming STM-0 frame)
that are in error
2. If the Receive STM-0 TOH Processor block is configured to count B1 byte errors on a per-frame basis,
then it will increment this 32 bit counter each time that it receives an STM-0 frame that contains an erred B1
byte.
133
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
TABLE 61: RECEIVE STM-0/STM-1 TRANSPORT - B1 BYTE ERROR COUNT REGISTER 2 (B1BECR2 = 0X0211)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
B1_Byte_Error_Count[23:16]
RUR
RUR
RUR
RUR
RUR
RUR
RUR
RUR
0
0
0
0
0
0
0
0
BIT [7:0] - B1 Byte Error Count (Bits 23 through 16)
This RESET-upon-READ register, along with Receive STM-0 Transport - B1 Byte Error Count Register - Bytes 3, 1 and
0, function as a 32 bit counter, which is incremented anytime the Receive STM-0 TOH Processor block detects a B1
byte error.
NOTES:
1. If the Receive STM-0 TOH Processor block is configured to count B1 byte errors on a per-bit basis, then
it will increment this 32 bit counter by the number of bits, within the B1 byte (of each incoming STM-0 frame)
that are in error.
2. If the Receive STM-0 TOH Processor block is configured to count B1 byte errors on a per-frame basis,
then it will increment this 32 bit counter each time that it receives an STM-0 frame that contains an erred B1
byte.
TABLE 62: RECEIVE STM-0/STM-1 TRANSPORT - B1 BYTE ERROR COUNT REGISTER 1 (B1BECR1 = 0X0212)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
B1_Byte_Error_Count[15:8]
RUR
RUR
RUR
RUR
RUR
RUR
RUR
RUR
0
0
0
0
0
0
0
0
BIT [7:0] - B1 Byte Error Count - (Bits 15 through 8)
This RESET-upon-READ register, along with Receive STM-0 Transport - B1 Byte Error Count Register - Bytes 3, 2 and
0, function as a 32 bit counter, which is incremented anytime the Receive STM-0 TOH Processor block detects a B1
byte error.
NOTES:
1. If the Receive STM-0 TOH Processor block is configured to count B1 byte errors on a per-bit basis, then
it will increment this 32 bit counter by the number of bits, within the B1 byte (of each incoming STM-0 frame)
that are in error
2. If the Receive STM-0 TOH Processor block is configured to count B1 byte errors on a per-frame basis,
then it will increment this 32 bit counter each time that it receives an STM-0 frame that contains an erred B1
byte.
134
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 63: RECEIVE STM-0/STM-1 TRANSPORT - B1 BYTE ERROR COUNT REGISTER 0 (B1BECR0 = 0X0213)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
B1_Byte_Error_Count[7:0]
RUR
RUR
RUR
RUR
RUR
RUR
RUR
RUR
0
0
0
0
0
0
0
0
BIT [7:0] - B1 Byte Error Count - LSB
This RESET-upon-READ register, along with Receive STM-0 Transport - B1 Byte Error Count Register - Bytes 3
through 1, function as a 32 bit counter, which is incremented anytime the Receive STM-0 TOH Processor block detects
a B1 byte error.
NOTES:
1. If the Receive STM-0 TOH Processor Block is configured to count B1 byte errors on a per-bit basis, then
it will increment this 32 bit counter by the number of bits, within the B1 byte (of each incoming STM-0 frame)
that are in error.
2. If the Receive STM-0 TOH Processor block is configured to count B1 byte errors on a per-frame basis,
then it will increment this 32 bit counter each time that it receives an STM-0 frame that contains an erred B1
byte.
TABLE 64: RECEIVE STM-0/STM-1 TRANSPORT - B2 BYTE ERROR COUNT REGISTER 3 (B2BECR3= 0X0214)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
B2_Byte_Error_Count[31:24]
RUR
RUR
RUR
RUR
RUR
RUR
RUR
RUR
0
0
0
0
0
0
0
0
BIT [7:0] - B2 Byte Error Count - MSB
This RESET-upon-READ register, along with Receive STM-0 Transport - B2 Byte Error Count Register - Bytes 2
through 0, function as a 32 bit counter, which is incremented anytime the Receive STM-0 TOH Processor block detects
a B2 byte error.
NOTES:
1. If the Receive STM-0 TOH Processor block is configured to count B2 byte errors on a per-bit basis, then
it will increment this 32 bit counter by the number of bits, within the B2 byte (of each incoming STM-0 frame)
that are in error.
2. If the Receive STM-0 TOH Processor block is configured to count B2 byte errors on a per-frame basis,
then it will increment this 32 bit counter each time that it receives an STM-0 frame that contains an erred B2
byte.
135
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
TABLE 65: RECEIVE STM-0/STM-1 TRANSPORT - B2 BYTE ERROR COUNT REGISTER 2 (B2BECR2 = 0X0215)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
B2_Byte_Error_Count[23:16]
RUR
RUR
RUR
RUR
RUR
RUR
RUR
RUR
0
0
0
0
0
0
0
0
BIT [7:0] - B2 Byte Error Count (Bits 23 through 16)
This RESET-upon-READ register, along with Receive Transport - B2 Byte Error Count Register - Bytes 3, 1 and 0,
function as a 32 bit counter, which is incremented anytime the Receive STM-0 TOH Processor block detects a B2 byte
error.
NOTES:
1. If the Receive STM-0 TOH Processor block is configured to count B2 byte errors on a per-bit basis, then
it will increment this 32 bit counter by the number of bits, within the B2 byte (of each incoming STM-0 frame)
that are in error.
2. If the Receive STM-0 TOH Processor block is configured to count B2 byte errors on a per-bit basis, then
it will increment this 32 bit counter each time that it receives an STM-0 frame that contains an erred B2 byte.
TABLE 66: RECEIVE STM-0/STM-1 TRANSPORT - B2 BYTE ERROR COUNT REGISTER 1 (B2BECR1 = 0X0216)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
B2_Byte_Error_Count[15:8]
RUR
RUR
RUR
RUR
RUR
RUR
RUR
RUR
0
0
0
0
0
0
0
0
BIT [7:0] - B2 Byte Error Count - (Bits 15 through 8)
This RESET-upon-READ register, along with Receive Transport - B2 Byte Error Count Register - Bytes 3, 2 and 0,
function as a 32 bit counter, which is incremented anytime the Receive STM-0 TOH Processor block detects a B2 byte
error.
NOTES:
1. If the Receive STM-0 TOH Processror block is configured to count B2 byte errors on a per-bit basis, then
it will increment this 32 bit counter by the number of bits, within the B2 byte (of each incoming STM-0 frame)
that are in error.
2. If the Receive STM-0 TOH Processor block is configured to count B2 byte errors on a per-frame basis,
then it will increment this 32 bit counter each time that it receives an STM-0 frame that contains an erred B2
byte.
136
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 67: RECEIVE STM-0/STM-1 TRANSPORT - B2 BYTE ERROR COUNT REGISTER 0 (B2BECR0 = 0X0217)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
B2_Byte_Error_Count[7:0]
RUR
RUR
RUR
RUR
RUR
RUR
RUR
RUR
0
0
0
0
0
0
0
0
BIT [7:0] - B2 Byte Error Count - LSB
This RESET-upon-READ register, along with Receive Transport - B2 Byte Error Count Register - Bytes 3 through 1,
function as a 32 bit counter, which is incremented anytime the Receive STM-0 TOH Processor block detects a B2 byte
error.
NOTES:
1. If the Receive STM-0 TOH Processor block is configured to count B2 byte errors on a per-bit basis, then
it will increment this 32 bit counter by the number of bits, within the B2 byte (of each incoming STM-0 frame)
that are in error.
2. If the Receive STM-0 TOH Processor block is configured to count B2 byte errors on a per-frame basis,
then it will increment this 32 bit counter each time that it receives an STM-0 frame that contains an erred B2
byte.
TABLE 68: RECEIVE STM-0/STM-1 TRANSPORT - REI-L EVENT COUNT REGISTER 3 (REILECR3 = 0X0218)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
REI-L_Event_Count[31:24]
RUR
RUR
RUR
RUR
RUR
RUR
RUR
RUR
0
0
0
0
0
0
0
0
BIT [7:0] - REI-L Event Count - MSB
This RESET-upon-READ register, along with Receive STM-0 Transport - REI-L Event Count Register - Bytes 2 through
0, function as a 32 bit counter, which is incremented anytime the Receive STM-0 TOH Processor block detects a Line
- Remote Error Indicator event within the incoming STM-0 data-stream.
NOTES:
1. If the Receive STM-0 TOH Processor block is configured to count REI-L events on a per-bit basis, then it
will increment this 32 bit counter by the nibble-value within the REI-L field of the M0 byte within each incoming
STM-0 frame.
2. If the Receive STM-0 TOH Processor block is configured to count REI-L events on a per-frame basis,
then it will increment this 32 bit counter each time that it receives an STM-0 frame that contains a non-zero
REI-L value.
137
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
TABLE 69: RECEIVE STM-0/STM-1 TRANSPORT - REI-L EVENT COUNT REGISTER 2 (REILECR2 = 0X0219)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
REI-L_Event_Count[23:16]
RUR
RUR
RUR
RUR
RUR
RUR
RUR
RUR
0
0
0
0
0
0
0
0
BIT [7:0] - REI-L Event Count (Bits 23 through 16)
This RESET-upon-READ register, along with Receive STM-0 Transport - REI-L Event Count Register - Bytes 3, 1 and
0, function as a 32 bit counter, which is incremented anytime the Receive STM-0 TOH Processor block detects a Line
- Remote Error Indicator event within the incoming STM-0 data-stream.
NOTES:
1. If the Receive STM-0 TOH Processor block is configured to count REI-L events on a per-bit basis, then it
will increment this 32 bit counter by the nibble-value within the REI-L field of the M0 byte within each incoming
STM-0 frame.
2. If the Receive STM-0 TOH Processor block is configured to count REI-L events on a per-frame basis,
then it will increment this 32 bit counter each time that it receives an STM-0 frame that contains a non-zero
REI-L value.
TABLE 70: RECEIVE STM-0/STM-1 TRANSPORT - REI-L EVENT COUNT REGISTER 1 (REILECR1 = 0X021A)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
REI-L_Event_Count[15:8]
RUR
RUR
RUR
RUR
RUR
RUR
RUR
RUR
0
0
0
0
0
0
0
0
BIT [7:0] - REI-L Event Count - (Bits 15 through 8)
This RESET-upon-READ register, along with Receive STM-0 Transport - REI-L Event Count Register - Bytes 3, 2 and
0, function as a 32 bit counter, which is incremented anytime the Receive STM-0 TOH Processor block detects a Line
-Remote Error Indicator event within the incoming STM-0 data-stream.
NOTES:
1. If the Receive STM-0 TOH Processor block is configured to count REI-L events on a per-bit basis, then it
will increment this 32 bit counter by the nibble-value within the REI-L field of the M0 byte within each incoming
STM-0 frame.
2. If the Receive STM-0 TOH Processor block is configured to count REI-L events on a per-frame basis,
then it will increment this 32 bit counter each time that it receives an STM-0 frame that contains a non-zero
REI-L value.
138
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 71: RECEIVE STM-0/STM-1 TRANSPORT - REI-L EVENT COUNT REGISTER 0 (REILECR0 = 0X021B)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
REI-L_Event_Count[7:0]
RUR
RUR
RUR
RUR
RUR
RUR
RUR
RUR
0
0
0
0
0
0
0
0
BIT [7:0] - REI-L Event Count - LSB
This RESET-upon-READ register, along with Receive STM-0 Transport - REI-L Event Count Register - Bytes 3 through
1, function as a 32 bit counter, which is incremented anytime the Receive STM-0 TOH Processor block detects a Line
- Remote Error Indicator event within the incoming STM-0 data-stream.
NOTES:
1. If the Receive STM-0 TOH Processor block is configured to count REI-L events on a per-bit basis, then it
will increment this 32 bit counter by the nibble-value within the REI-L field of the M0 byte.
2. If the Receive STM-0 TOH Processor block is configured to count REI-L events on a per-frame basis,
then it will increment this 32 bit counter each time that it receives an STM-0 frame that contains a non-zero
REI-L value.
TABLE 72: RECEIVE STM-0/STM-1 TRANSPORT - RECEIVED K1 BYTE VALUE REGISTER (RK1BVR = 0X021F)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
Filtered_K1_Byte_Value[7:0]
R/O
R/O
R/O
R/O
R/O
R/O
R/O
R/O
0
0
0
0
0
0
0
0
BIT [7:0]Filtered/Accepted K1 Byte Value
These READ-ONLY bit-fields contain the value of the most recently filtered K1 byte value that the Receive STM-0 TOH
Processor block has received. These bit-fields are valid if the K1/K2 pair (to which it belongs) has been received for 3
consecutive STM-0 frames.
This register should be polled by Software in order to determine various APS codes.
TABLE 73: RECEIVE STM-0/STM-1 TRANSPORT - RECEIVED K2 BYTE VALUE REGISTER (RK2BVR = 0X0223)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
Filtered_K2_Byte_Value[7:0]
R/O
R/O
R/O
R/O
R/O
R/O
R/O
R/O
0
0
0
0
0
0
0
0
BIT [7:0]Filtered/Accepted K2 Byte Value
These READ-ONLY bit-fields contain the value of the most recently filtered K2 Byte value that the Receive STM-0 TOH
Processor block has received. These bit-fields are valid if the K1/K2 pair (to which it belongs) has been received for 3
consecutive STM-0 frames.
This register should be polled by Software in order to determine various APS codes.
139
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
TABLE 74: RECEIVE STM-0/STM-1 TRANSPORT - RECEIVED S1 BYTE VALUE REGISTER (RS1BVR = 0X0227)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
Filtered_S1_Byte_Value[7:0]
R/O
R/O
R/O
R/O
R/O
R/O
R/O
R/O
0
0
0
0
0
0
0
0
BIT [7:0] - Filtered/Accepted S1 Byte Value
These READ-ONLY bit-fields contain the value of the most recently filtered S1 byte value that the Receive STM-0 TOH
Processor block has received. These bit-fields are valid if it has been received for 8 consecutive STM-0 frames.
TABLE 75: RECEIVE STM-0/STM-1 TRANSPORT - RECEIVE IN-SYNC THRESHOLD REGISTER (RISTR = 0X022B)
BIT7
BIT6
BIT 5
BIT 4
Unused
BIT 3
BIT 2
FRPATOUT[1:0]
BIT 1
FRPATIN[1:0]
BIT 0
Unused
R/O
R/O
R/O
R/W
R/W
R/W
R/W
R/O
0
0
0
0
0
0
0
0
BIT [7:5] - Unused
BIT [4:3] - FRPATOUT[1:0]
These bits allow software to select from 3 different framing algorithms when the framer is trying to detect SEF (OOF).
00, 01 - 16-Bits (Last A1 byte + First A2 byte)
10 - 32-Bits (Last two A1 bytes + First two A2 bytes)
11 - 48-Bits (Last three A1 bytes + First three A2 bytes)
BIT [2:1] - FRPATIN[1:0]
These bits allow software to specify the algorithm used to check for frame synchronization patterns (A1/A2).
00, 01 - 16-Bits (Last A1 byte + First A2 byte)
10 - 32-Bits (Last two A1 bytes + First two A2 bytes)
11 - 48-Bits (Last three A1 bytes + First three A2 bytes)
BIT 0 - Unused
TABLE 76: RECEIVE STM-0/STM-1 TRANSPORT - LOS THRESHOLD VALUE 1 (LOSTV1 = 0X022E)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
LOS_THRESHOLD[15:8]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
1
1
1
1
1
1
1
1
BIT [7:0] - LOS Threshold Value - MSB
These READ/WRITE bits, along the contents of the Receive STM-0/STM-1 Transport - LOS Threshold Value - LSB
register is used specify the number of consecutive (All Zero) bytes that the Receive STM-0/STM-1 TOH Processor block
must detect (within the incoming STM-0/STM-1 data-stream) before it can declare the LOS defect condition.
NOTE: This register contains the MSB (Most Significant Byte) of this 16-bit expression.
140
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 77: RECEIVE STM-0/STM-1 TRANSPORT - LOS THRESHOLD VALUE 0 (LOSTV0 = 0X022F)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
LOS_THRESHOLD[7:0]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
1
1
1
1
1
1
1
1
BIT [7:0] - LOS Threshold Value - LSB
These READ/WRITE bits, along the contents of the Receive STM-0/STM-1 Transport - LOS Threshold Value - MSB
register is used to specify the number of consecutive (All Zero) bytes that the Receive STM-0/STM-1 TOH Processor
block must detect (within the incoming STM-0/STM-1 data-stream) before it can declare the LOS defect condition.
NOTE: This register contains the LSB (Least Significant Byte) of this 16-bit expression.
TABLE 78: RECEIVE STM-0/STM-1 TRANSPORT - RECEIVE SF SET MONITOR INTERVAL 2 (RSFSMI2= 0X0231)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
SF_SET_MONITOR_WINDOW[23:16]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
1
1
1
1
1
1
1
1
BIT [7:0] - SF_SET_MONITOR_INTERVAL - MSB
These READ/WRITE bits, along the contents of the Receive STM-0/STM-1 Transport - SF SET Monitor Interval - Byte
1 and Byte 0 registers are used to specify the length of the monitoring period (in terms of ms) for SF (Signal Failure)
Defect Declaration.
When the Receive STM-0/STM-1 TOH Processor block is checking the incoming STM-0/STM-1 signal in order to
determine if it should declare the SF defect condition, it will accumulate B2 byte errors throughout the user-specified SF
Defect Declaration monitoring period. If, during this SF Defect Declaration Monitoring Period, the Receive STM-0/STM1 TOH Processor block accumulates more B2 byte errors than that specified within the Receive Transport SF SET
Threshold register, then the Receive STM-0/STM-1 TOH Processor block will declare the SF defect condition.
NOTES:
1. The value that the user writes into these three (3) SF Set Monitor Window registers, specifies the
duration of the SF Defect Declaration Monitoring Period, in terms of ms.
2. This particular register byte contains the MSB (most significant byte) value of the three registers that
specify the SF Defect Declaration Monitoring Period.
TABLE 79: RECEIVE STM-0/STM-1 TRANSPORT - RECEIVE SF SET MONITOR INTERVAL 1 (RSFSMI1 = 0X0232)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
SF_SET_MONITOR_WINDOW[15:8]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
1
1
1
1
1
1
1
1
BIT [7:0] - SF_SET_MONITOR_INTERVAL (Bits 15 through 8)
These READ/WRITE bits, along the contents of the Receive STM-0/STM-1 Transport - SF SET Monitor Interval - Byte
2 and Byte 0 registers are used to specify the length of the monitoring period (in terms of ms) for SF (Signal Failure)
Defect Declaration.
When the Receive STM-0/STM-1 TOH Processor block is checking the incoming STM-0/STM-1 signal in order to
determine if it should declare the SF defect condition, it will accumulate B2 byte errors throughout the user-specified SF
Defect Declaration Monitoring Period. If, during this SF Defect Declaration Monitoring Period the Receive STM-0/STM1 TOH Processor block accumulate more B2 byte errors than that specified within the Receive STM-0/STM-1 Transport
141
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
SF SET Threshold register, then the Receive STM-0/STM-1 TOH Processor block will declare the SF defect condition.
NOTE: The value that the user writes into these three (3) SF Set Monitor Window registers, specifies the duration of
the SF Defect Declaration Monitoring Period, in terms of ms.
142
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 80: RECEIVE STM-0/STM-1 TRANSPORT - RECEIVE SF SET MONITOR INTERVAL 0 (RSFSMI0 = 0X0233)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
SF_SET_MONITOR_WINDOW[7:0]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
1
1
1
1
1
1
1
1
BIT [7:0] - SF_SET_MONITOR_INTERVAL - LSB
These READ/WRITE bits, along the contents of the Receive STM-0/STM-1 Transport - SF SET Monitor Interval - Byte 2
and Byte 1 registers are used to specify the length of the monitoring period (in terms of ms) for SF (Signal Failure) Defect
Declaration.
When the Receive STM-0/STM-1 TOH Processor block is checking the incoming STM-0/STM-1 signal in order to determine if it should declare the SF defect condition, it will accumulate B2 byte errors throughout the user-specified SF Defect
Declaration Monitoring Period. If, during this SF Defect Declaration Monitoring Period, the Receive STM-0/STM-1 TOH
Processor block accumulates more B2 byte errors than that specified within the Receive STM-0/STM-1 Transport SF SET
Threshold register, then the Receive STM-0/STM-1 TOH Processor block will declare the SF defect condition.
NOTES:
1. The value that the user writes into these three (3) SF Set Monitor Window registers, specifies the
duration of the SF Defect Declaration Monitoring Period, in terms of ms.
2. This particular register byte contains the LSB (least significant byte) value of the three registers that
specify the SF Defect Declaration Monitoring period.
TABLE 81: RECEIVE STM-0/STM-1 TRANSPORT - RECEIVE SF SET THRESHOLD 1 (RSFST1= 0X0236)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
SF_SET_THRESHOLD[15:8]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
1
1
1
1
1
1
1
1
BIT [7:0] - SF_SET_THRESHOLD - MSB
These READ/WRITE bits, along the contents of the Receive STM-0/STM-1 Transport - SF SET Threshold - Byte 0
registers are used to specify the number of B2 byte errors that will cause the Receive STM-0/STM-1 TOH Processor
block to declare the SF (Signal Failure) Defect condition.
When the Receive STM-0/STM-1 TOH Processor block is checking for declaring the SF defect condition, it will
accumulate B2 byte errors throughout the SF Defect Declaration Monitoring Period. If the number of accumulated B2
byte errors exceeds that value, which is programmed into this and the Receive STM-0 Transport SF SET Threshold Byte 0 register, then the Receive STM-0/STM-1 TOH Processor block will declare the SF defect condition.
NOTE: This particular register byte contains the MSB (most significant byte) value of this 16-bit expression.
143
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
TABLE 82: RECEIVE STM-0/STM-1 TRANSPORT - RECEIVE SF SET THRESHOLD 0 (RSFST0 = 0X0237)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
SF_SET_THRESHOLD[7:0]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
1
1
1
1
1
1
1
1
BIT [7:0] - SF_SET_THRESHOLD - LSB
These READ/WRITE bits, along the contents of the Receive STM-0/STM-1 Transport - SF SET Threshold - Byte 1
registers are used to specify the number of B2 byte errors that will cause the Receive STM-0/STM-1 TOH Processor
block to declare the SF (Signal Failure) Defect condition.
When the Receive STM-0/STM-1 TOH Processor block is checking for declaring the SF defect condition, it will
accumulate B2 byte errors throughout the SF Defect Monitoring Period. If the number of accumulated B2 byte errors
exceeds that which has been programmed into this and the Receive STM-0 Transport SF SET Threshold - Byte 1
register, then the Receive STM-0/STM-1 TOH Processor block will declare the SF defect condition.
TABLE 83: RECEIVE STM-0 TRANSPORT - RECEIVE SF CLEAR THRESHOLD 2 (RSFCT2= 0X023A)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
SF_CLEAR_THRESHOLD[15:8]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
1
1
1
1
1
1
1
1
BIT [7:0] - SF_CLEAR_THRESHOLD - MSB
These READ/WRITE bits, along the contents of the Receive STM-0 Transport - SF CLEAR Threshold - Byte 0 registers
are used to specify the upper limit for the number of B2 bit errors that will cause the Receive STM-0 TOH Processor
block to clear the SF (Signal Failure) defect condition.
When the Receive STM-0 TOH Processor block is checking for clearing the SF defect condition, it will accumulate B2
byte errors throughout the SF Defect Clearance Monitoring Period. If the number of accumulated B2 byte errors is less
than that programmed into this and the Receive STM-0 Transport SF CLEAR Threshold - Byte 0 register, then the
Receive STM-0 TOH Processor block clear the SF defect condition.
TABLE 84: RECEIVE STM-0 TRANSPORT - RECEIVE SF CLEAR THRESHOLD 1 (RSFCT1 = 0X023B)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
SF_CLEAR_THRESHOLD[7:0]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
1
1
1
1
1
1
1
1
BIT [7:0] - SF_CLEAR_THRESHOLD - LSB
These READ/WRITE bits, along the contents of the Receive STM-0 Transport - SF CLEAR Threshold - Byte 1 registers
are used to specify the upper limit for the number of B2 bit errors that will cause the Receive STM-0 TOH Processor
block to clear the SF (Signal Failure) defect condition.
When the Receive STM-0 TOH Processor block is checking for clearing the SF defect condition, it will accumulate B2
byte errors throughout the SF Defect Clearance Monitoring Period. If the number of accumulated B2 byte errors is less
than that programmed into this and the Receive STM-0 Transport SF CLEAR Threshold - Byte 1 register, then the
Receive STM-0 TOH Processor block will clear the SF defect condition.
144
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 85: RECEIVE STM-0 TRANSPORT - RECEIVE SD SET MONITOR INTERVAL 0 (RSFCT0 = 0X023D)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
SD_SET_MONITOR_WINDOW[23:16]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:0] - SD_SET_MONITOR_INTERVAL - MSB
These READ/WRITE bits, along the contents of the Receive STM-0 Transport - SD SET Monitor Interval - Byte 1 and Byte
0 registers are used to specify the length of the monitoring period (in terms of ms) for SD (Signal Degrade) defect declaration.
When the Receive STM-0 TOH Processor block is checking the incoming STM-0 signal in order to determine if it should
declare the SD defect condition, it will accumulate B2 byte errors throughout the user-specified SD Defect Declaration monitoring period. If, during this SD Defect Declaration Monitoring period, the Receive STM-0 TOH Processor block accumulates more B2 byte errors than that specified within the Receive STM-0 Transport SD SET Threshold register, then the
Receive STM-0 TOH Processor block will declare the SD defect condition.
NOTES:
1. The value that the user writes into these three (3) SD Set Monitor Window registers, specifies the
duration of the SD Defect Declaration Monitoring Period, in terms of ms.
2. This particular register byte contains the MSB (Most significant byte) value of the three registers that
specify the SD Defect Declaration Monitoring Period.
TABLE 86: RECEIVE STM-0 TRANSPORT - RECEIVE SD SET MONITOR INTERVAL 1 (RSDSMI1 = 0X023E)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
SD_SET_MONITOR_WINDOW[15:8]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:0] - SD_SET_MONITOR_INTERVAL - Bits 15 through 8
These READ/WRITE bits, along the contents of the Receive STM-0 Transport - SD SET Monitor Interval - Byte 2 and
Byte 0 registers are used to specify the length of the monitoring period (in terms of ms) for SD (Signal Degrade) defect
declaration.
When the Receive STM-0 TOH Processor block is checking the incoming STM-0 signal in order to determine it it should
declare the SD defect condition, it will accumulate B2 byte errors throughout the user-specified SD Defect Declaration
Monitoring Period. If, during this SD Defect Declaration Monitoring Period the Receive STM-0 TOH Processor block
accumulates more B2 byte errors than that specified within the Receive STM-0 Transport SD SET Threshold register,
then the Receive STM-0 TOH Processor block will declare the SD defect condition.
NOTE: The value that the user writes into these three (3) SD Set Monitor Window registers, specifies the duration of
the SD Defect Declaration Monitoring Period, in terms of ms.
145
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 87: RECEIVE STM-0 TRANSPORT - RECEIVE SD SET MONITOR INTERVAL 0 (RSDSMI0 = 0X023F)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
SD_SET_MONITOR_WINDOW[7:0]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:0] - SD_SET_MONITOR_INTERVAL - LSB
These READ/WRITE bits, along the contents of the Receive STM-0 Transport - SD SET Monitor Interval - Byte 2 and
Byte 1 registers are used to specify the length of the monitoring period (in terms of ms) for SD (Signal Degrade) defect
declaration.
When the Receive STM-0 TOH Processor block is checking the incoming STM-0 signal in order to determine if it should
declare the SD defect condition, it will accumulate B2 byte errors throughout the user-speciifed SD Defect Declaration
Monitoring Period. If, during this SD Defect Declaration Monitoring Period, the Receive STM-0 TOH Processor block
accmulattes more B2 byte errors than that specified within the Receive STM-0 Transport SD SET Threshold register,
then the Receive STM-0 TOH Processor block will declare the SD defect condition.
NOTES:
1. The value that the user writes into these three (3) SD Set Monitor Window registers, specifies the
duration of the SD Defect Declaration Monitoring Period, in terms of ms.
2. This particular register byte contains the LSB (least significant byte) value of the three registers that
specify the SD Defect Declaration Monitoring period.
TABLE 88: RECEIVE STM-0 TRANSPORT - RECEIVE SD SET THRESHOLD 1 (RSDST1= 0X0242)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
SD_SET_THRESHOLD[15:8]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
1
1
1
1
1
1
1
1
BIT [7:0] - SD_SET_THRESHOLD - MSB
These READ/WRITE bits, along the contents of the Receive STM-0 Transport - SD SET Threshold - Byte 0 registers
are used to specify the number of B2 bit errors that will cause the Receive STM-0 TOH Processor block to declare the
SD (Signal Degrade) defect condition.
When the Receive STM-0 TOH Processor block is checking for declaring the SD defect condition, it will accumulate B2
byte errors throughout the SD Defect Declaration Monitoring Period. If the number of accumulated B2 byte errors
exceeds that value, which is programmed into this and the Receive STM-0 Transport SD SET Threshold - Byte 0
register, then the Receive STM-0 TOH Processor block will declare the SD defect condition.
146
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 89: RECEIVE STM-0 TRANSPORT - RECEIVE SD SET THRESHOLD 0 (RSDST0 = 0X0243)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
SD_SET_THRESHOLD[7:0]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
1
1
1
1
1
1
1
1
BIT [7:0] - SD_SET_THRESHOLD - LSB
These READ/WRITE bits, along the contents of the Receive STM-0 Transport - SD SET Threshold - Byte 1 registers
are used to specify the number of B2 bit errors that will cause the Receive STM-0 TOH Processor block to declare an
SD (Signal Degrade) defect condition.
When the Receive STM-0 TOH Processor block is checking for declaring the SD defect condition, it will accumulate B2
byte errors throughout the SD Defect Monitoring Period. If the number of accumulated B2 byte errors exceeds that which
has been programmed into this and the Receive STM-0 Transport SD SET Threshold - Byte 1 register, then the Receive
STM-0 TOH Processor block will declare the SD defect condition.
TABLE 90: RECEIVE STM-0 TRANSPORT - RECEIVE SD CLEAR THRESHOLD 1 (RSDCT1= 0X0246)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
SD_CLEAR_THRESHOLD[15:8]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
1
1
1
1
1
1
1
1
BIT [7:0] - SD_CLEAR_THRESHOLD - MSB
These READ/WRITE bits, along the contents of the Receive STM-0 Transport - SD CLEAR Threshold - Byte 0 registers
are used to specify the upper limit for the number of B2 byte errors that will cause the Receive STM-0 TOH Processor
block to clear the SD (Signal Degrade) defect condition.
When the Receive STM-0 TOH Processor block is checking for clearing the SD defect condition, it will accumulate B2
byte errors throughout the SD Defect Clearance Monitoring Period. If the number of accumulated B2 byte errors is less
than that programmed into this and the Receive STM-0 Transport SD CLEAR Threshold - Byte 0 register, then the
Receive STM-0 TOH Processor block will clear the SD defect condition.
TABLE 91: RECEIVE STM-0 TRANSPORT - RECEIVE SD CLEAR THRESHOLD 0 (RSDCT0 = 0X0247)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
SD_CLEAR_THRESHOLD[7:0]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
1
1
1
1
1
1
1
1
BIT [7:0] - SD_CLEAR_THRESHOLD - LSB
These READ/WRITE bits, along the contents of the Receive STM-0 Transport - SD CLEAR Threshold - Byte 1 registers
are used to specify the upper limit for the number of B2 byte errors that will cause the Receive STM-0 TOH Processor
block to clear the SD (Signal Degrade) defect condition.
When the Receive STM-0 TOH Processor block is checking for clearing the SD defect condition, it will accumulate B2
byte errors throughout the SD Defect Clearance Monitoring Period. If the number of accumulated B2 byte errors is less
than that programmed into this and the Receive STM-0 Transport SD CLEAR Threshold - Byte 1 register, then the
Receive STM-0 TOH Processor block will clear the SD defect condition.
147
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
TABLE 92: RECEIVE STM-0 TRANSPORT - FORCE SEF DEFECT CONDITION REGISTER (FSDCR = 0X024B)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
Unused
BIT 0
SEF FORCE
R/O
R/O
R/O
R/O
R/O
R/O
R/O
R/W
0
0
0
0
0
0
0
0
BIT [7:1] - Unused
BIT 0 - SEF Defect Condition FORCE
This READ/WRITE bit-field is used to force the Receive STM-0 TOH Processor block (within the corresponding
Channel) to declare the SEF defect condition. The Receive STM-0 TOH Processor block will then attempt to reacquire
framing.
Writing a 1 into this bit-field configures the Receive STM-0 TOH Processor block to declare the SEF defect. The
Receive STM-0 TOH Processor block will automatically set this bit-field to 0 once it has reacquired framing (e.g., has
detected two consecutive STM-0 frames with the correct A1 and A2 bytes).
148
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 93: RECEIVE STM-0 TRANSPORT - RECEIVE SECTION TRACE MESSAGE BUFFER CONTROL REGISTER
(RSTMBCR = 0X024F)
BIT 7
BIT 6
BIT 5
Unused
BIT 4
BIT 3
BIT 2
Receive Section Trace
Message
Buffer Read
Select
Receive Section Trace
Message
Accept
Threshold
Section Trace
Message
Alignment
Type
BIT 1
BIT 0
Receive Section Trace Message Length[1:0]
R/O
R/O
R/O
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:5] - Unused
BIT 4 - Receive Section Trace Message Buffer Read Selection
This READ/WRITE bit-field is used to specify which of the following Receive Section Trace Message buffer segments
to read.
•
The Actual Receive Section Trace Message Buffer which contains the contents of the most recently received
(and accepted) Section Trace Message via the incoming STM-0 data-stream.
•
The Expected Receive Section Trace Message Buffer which contains the contents of the Section Trace
Message that the user expects to receive. The contents of this particular buffer are usually specified by the
user.
0 - Executing a READ to the Receive Section Trace Message Buffer address space, will return contents within the
Actual Receive Section Trace Message buffer.
1 - Executing a READ to the Receive Section Trace Message Buffer address space will return contents within the
Expected Receive Section Trace Message Buffer.
NOTE: In the case of the Receive STM-1 TOH Processor block, the Receive Section Trace Message Buffer is located
at Address Location 0x0300 through 0x033F.
BIT 3 - Receive Section Trace Message Accept Threshold
This READ/WRITE bit-field is used to select the number of consecutive times that the Receive STM-0 TOH Processor
block must receive a given Section Trace Message, before it is accepted, as described below. Once a given Section
Trace Message has been accepted then it can be read out of the Actual Receive Section Trace Message Buffer.
0 - The Receive STM-0 TOH Processor block accepts the Section Trace Message after it has received it the third time
in succession.
1 - The Receive STM-0 TOH Processor block accepts the Section Trace Message after it has received in the fifth time
in succession.
BIT 2 - Section Trace Message Alignment Type
This READ/WRITE bit-field is used to specify how the Receive STM-0 TOH Processor block will locate the boundary of
the Section Trace Message within the incoming STM-0 data-stream, as indicated below.
0 - Message boundary is indicated by Line Feed.
1 - Message boundary is indicated by the presence of a 1 in the MSB of the first byte (within the Section Trace
Message).
BIT [1:0] - Receive Section Trace Message Length[1:0]
These READ/WRITE bit-fields are used to specify the length of the Section Trace Message that the Receive STM-0
TOH Processor block will receive. The relationship between the content of these bit-fields and the corresponding
Receive Section Trace Message Length is presented below
149
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
Trace Message Length
RECEIVE SECTION TRACE MESSAGE
LENGTH[1:0]
RESULTING RECEIVE SECTION TRACE MESSAGE LENGTH (IN TERMS OF
BYTES)
00
1 Byte
01
16 Bytes
10/11
64 Bytes
TABLE 94: RECEIVE STM-0 TRANSPORT - RECEIVE SD BURST ERROR TOLERANCE 1 (RSDBET1 = 0X0252)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
SD_BURST_TOLERANCE[15:8]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
1
1
1
1
1
1
1
1
BIT [7:0] - SD_BURST_TOLERANCE - MSB
These READ/WRITE bits, along with the contents of the Receive STM-0 Transport - SD BURST Tolerance - Byte 0
registers are used to specify the maximum number of B2 bit errors that the corresponding Receive STM-0 TOH
Processor block can accumulate during a single Sub-Interval period (e.g., an STM-0 frame period), when determining
whether or not to declare the SD (Signal Degrade) defect condition.
NOTE: The purpose of this feature is to are used to provide some level of B2 error burst filtering, when the Receive
STM-0 TOH Processor block is accumulating B2 byte errors in order to declare the SD defect condition. The
user can implement this feature in order to configure the Receive STM-0 TOH Processor block to detect B2 bit
errors in multiple Sub-Interval periods before it will declare the SD defect condition.
TABLE 95: RECEIVE STM-0 TRANSPORT - RECEIVE SD BURST ERROR TOLERANCE 0 (RSDBET0 = 0X0253)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
SD_BURST_TOLERANCE[7:0]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
1
1
1
1
1
1
1
1
BIT [7:0] - SD_BURST_TOLERANCE - LSB
These READ/WRITE bits, along with the contents of the Receive STM-0 Transport - SD BURST Tolerance - Byte 1
registers are used to specify the maximum number of B2 bit errors that the corresponding Receive STM-0 TOH
Processor block can accumulate during a single Sub-Interval period (e.g., an STM-0 frame period), when determining
whether or not to declare the SD (Signal Degrade) defect condition.
NOTE: The purpose of this feature is to are used to provide some level of B2 error burst filtering, when the Receive
STM-0 TOH Processor block is accumulating B2 byte errors in order to declare the SD defect condition. The
user can implement this feature in order to configure the Receive STM-0 TOH Processor block to detect B2 bit
errors in multiple Sub-Interval periods before it will declare the SD defect condition.
150
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 96: RECEIVE STM-0 TRANSPORT - RECEIVE SF BURST ERROR TOLERANCE 1 (RSFBET1 = 0X0256)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
SF_BURST_TOLERANCE[15:8]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
1
1
1
1
1
1
1
1
BIT [7:0] - SF_BURST_TOLERANCE - MSB
These READ/WRITE bits, along with the contents of the Receive STM-0 Transport - SF BURST Tolerance - Byte 0
registers are used to specify the maximum number of B2 bit errors that the corresponding Receive STM-0 TOH
Processor block can accumulate during a single Sub-Interval period (e.g., an STM-0 frame period), when determining
whether or not to declare the SF (Signal Failure) defect condition.
NOTE: The purpose of this feature is to are used to provide some level of B2 error burst filtering, when the Receive
STM-0 TOH Processor block is accumulating B2 byte errors in order to declare the SF defect condition. The
user can implement this feature in order to configure the Receive STM-0 TOH Processor block to detect B2 bit
errors in multiple Sub-Interval periods before it will declare the SF defect condition.
TABLE 97: RECEIVE STM-0 TRANSPORT - RECEIVE SF BURST ERROR TOLERANCE 0 (RSFBET0 = 0X0257)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
SF_BURST_TOLERANCE[7:0]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
1
1
1
1
1
1
1
1
BIT [7:0] - SF_BURST_TOLERANCE - LSB
These READ/WRITE bits, along with the contents of the Receive STM-0 Transport - SF BURST Tolerance - Byte 1
registers are used to specify the maximum number of B2 bit errors that the corresponding Receive STM-0 TOH
Processor block can accumulate during a single Sub-Interval period (e.g., an STM-0 frame period), when determining
whether or not to declare the SF (Signal Failure) defect condition.
NOTE: The purpose of this feature is to are used to provide some level of B2 error burst filtering, when the Receive
STM-0 TOH Processor block is accumulating B2 byte errors in order to declare the SF defect condition. The
user can implement this feature in order to configure the Receive STM-0 TOH Processor block to detect B2 bit
errors in multiple Sub-Interval periods before it will declare the SF defect condition.
151
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
TABLE 98: RECEIVE STM-0 TRANSPORT - RECEIVE SD CLEAR MONITOR INTERVAL 2 (RSDCMI2= 0X0259)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
SD_CLEAR_MONITOR_WINDOW[23:16]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
1
1
1
1
1
1
1
1
BIT [7:0] - SD_CLEAR_MONITOR_INTERVAL - MSB
These READ/WRITE bits, along the contents of the Receive STM-0 Transport - SD Clear Monitor Interval - Byte 1 and
Byte 0 registers are used to specify the length of the monitoring period (in terms of ms) for SD (Signal Degrade) defect
clearance.
When the Receive STM-0 TOH Processor block is checking the incoming STM-0 signal in order to determine if it should
clear the SD defect condition, it will accumulate B2 byte errors throughout the user-specified SD Defect Clearance
Monitoring period. If, during this SD Defect Clearance Monitoring period, the Receive STM-0 TOH Processor block
accumulates less B2 byte errors than that programmed into the Receive STM-0 Transport SD Clear Threshold register,
then the Receive STM-0 TOH Processor block will clear the SD defect condition.
NOTES:
1. The value that the user writes into these three (3) SD Clear Monitor Window Registers, specifies the
duration of the SD Defect Clearance Monitoring Period, in terms of ms.
2. This particular register byte contains the MSB (Most significant byte) value of the three registers that
specifiy the SD Defect Clearance Monitoring period.
TABLE 99: RECEIVE STM-0 TRANSPORT - RECEIVE SD CLEAR MONITOR INTERVAL 1 (RSDCMI1 = 0X025A)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
SD_CLEAR_MONITOR_WINDOW[15:8]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
1
1
1
1
1
1
1
1
BIT [7:0] - SD_CLEAR_MONITOR_INTERVAL - Bits 15 through 8
These READ/WRITE bits, along the contents of the Receive STM-0 Transport - SD Clear Monitor Interval - Byte 2 and
Byte 0 registers are used to specify the length of the monitoring period (in terms of ms) for SD (Signal Degrade) defect
clearance.
When the Receive STM-0 TOH Processor block is checking the incoming STM-0 signal in order to determine if it should
clear the SD defect condition, it will accumulate B2 byte errors throughout the user-specified SD Defect Clearance
Monitoring period. If, during this SD Defecf Clearance Monitoring Period, the Receive STM-0 TOH Processor block
accumulates less B2 byte errors than that programmed into the Receive STM-0 Transport SD Clear Threshold register,
then the Receive STM-0 TOH Processor block will clear the SD defect condition.
NOTE: The value that the user writes into these three (3) SD Clear Monitor Window Registers, specifies the duration of
the SD Defect Clearance Monitoring Period, in terms of ms.
152
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 100: RECEIVE STM-0 TRANSPORT - RECEIVE SD CLEAR MONITOR INTERVAL 0 (RSDCMI0 = 0X025B)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
1
1
1
1
1
1
1
1
SD_CLEAR_
MONITOR_
WINDOW[7:0]
BIT [7:0] - SD_CLEAR_MONITOR_INTERVAL - LSB
These READ/WRITE bits, along the contents of the Receive STM-0 Transport - SD Clear Monitor Interval - Byte 2 and
Byte 1 registers are used to specify the length of the monitoring period (in terms of ms) for SD (Signal Degrade) defect
clearance
.When the Receive STM-0 TOH Processor block is checking the incoming STM-0 signal in order to determine if it should
clear the SD defect condition, it will accumulate B2 byte errors throughout the user-specified SD Defect Clearance
Monitoring period. If, during this SD Defect Clearance Monitoring period, the Receive STM-0 TOH Processor block
accumulates less B2 byte errors than that programmed into the Receive STM-0 Transport SD Clear Threshold register,
then the Receive STM-0 TOH Processor block will clear the SD defect condition
NOTES:
1. The value that the user writes into these three (3) SD Clear Monitor Window Registers, specifies the
duration of the SD Defect Clearance Monitoring Period, in terms of ms.
2. This particular register byte contains the LSB (least significant byte) value of the three registers that
specify the SD Defect Clearance Monitoring period.
TABLE 101: RECEIVE STM-0 TRANSPORT - RECEIVE SF CLEAR MONITOR INTERVAL 2 (RSFCMI2= 0X025D)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
SF_CLEAR_MONITOR_WINDOW[23:16]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
1
1
1
1
1
1
1
1
BIT [7:0] - SF_CLEAR_MONITOR_INTERVAL - MSB
These READ/WRITE bits, along the contents of the Receive STM-0 Transport - SF Clear Monitor Interval - Byte 1 and
Byte 0 registers are used to specify the length of the monitoring period (in terms of ms) for SF (Signal Failure) defect
clearance.
When the Receive STM-0 TOH Processor block is checking the incoming STM-0 signal in order to determine if it should
clear the SF defect condition, it will accumulate B2 byte errors throughout the user-specified SF Defect Clearance
Monitoring period. If, during this SF Defect Clearance Monitoring period, the Receive STM-0 TOH Processor block
accumulates less B2 byte errors than that programmed into the Receive STM-0 Transport SF Clear Threshold register,
then the Receive STM-0 TOH Processor blolck will clear the SF defect condition.
NOTES:
1. The value that the user writes into these three (3) SF Clear Monitor Window Registers, specifies the
duration of the SF Defect Clearance Monitoring Period, in terms of ms.
2. This particular register byte contains the MSB (Most significant byte) value of the three registers that
specify the SF Defect Clearance Monitoring period.
153
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
TABLE 102: RECEIVE STM-0 TRANSPORT - RECEIVE SF CLEAR MONITOR INTERVAL 1 (RSFCMI1 = 0X025E)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
SF_CLEAR_MONITOR_WINDOW[15:8]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
1
1
1
1
1
1
1
1
BIT [7:0] - SF_CLEAR_MONITOR_INTERVAL - Bits 15 through 8
These READ/WRITE bits, along the contents of the Receive STM-0 Transport - SF Clear Monitor Interval - Byte 2 and
Byte 0 registers are used to specify the length of the monitoring period (in terms of ms) for SF (Signal Failure) defect
clearance.
When the Receive STM-0 TOH Processor block is checking the incoming STM-0 signal in order to determine if it should
clear the SF defect condition, it will accumulate B2 byte errors throughout the user-specified SF Defect Clearance
Monitoring period. If, during this SF Defect Clearance Monitoring period, the Receive STM-0 TOH Processor block
accumulates less B2 byte errors than that programmed into the Receive STM-0 Transport SF Clear Threshold register,
then the Receive STM-0 TOH Processor block will clear the SF defect condition.
NOTE: The value that the user writes into these three (3) SF Clear Monitor Window Registers, specifies the duration of
the SF Defect Clearance Monitoring Period, in terms of ms.
TABLE 103: RECEIVE STM-0 TRANSPORT - RECEIVE SF CLEAR MONITOR INTERVAL 0 (RSFCMI0 = 0X025F)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
SF_CLEAR_MONITOR_WINDOW[7:0]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
1
1
1
1
1
1
1
1
BIT [7:0] - SF_CLEAR_MONITOR_INTERVAL - LSB
These READ/WRITE bits, along the contents of the Receive STM-0 Transport - SF Clear Monitor Interval - Byte 2 and
Byte 1 registers are used to specify the length of the monitoring period (in terms of ms) for SF (Signal Failure) defect
clearance.When the Receive STM-0 TOH Processor block is checking the incoming STM-0 signal in order to determine
if it should clear the SF defect condition, it will accumulate B2 byte errors throughout the user-specified SF Defect
Clearance Monitoring period. If, during this SF Defect Clearance Monitoring period, the Receive STM-0 TOH Processor
block accumulates less B2 byte errors than that programmed into the Receive STM-0 Transport SF Clear Threshold
register, then the Receive STM-0 TOH Processor block will clear the SF defect condition.
NOTES:
1. The value that the user writes into these three (3) SF Clear Monitor Window Registers, specifies the
duration of the SF Defect Clearance Monitoring Period, in terms of ms.
2. This particular register byte contains the LSB (Least Significant byte) value of the three registers that
specify the SF Defect Clearance Monitoring period.
154
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 104: RECEIVE STM-0 TRANSPORT - AUTO AIS CONTROL REGISTER (AAISCR = 0X0263)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
Transmit
AIS-P
(Downstream) upon
Section
Trace Message Unstable
Transmit
AIS-P
(Downstream)
Upon Section Trace
Message
Mismatch
Transmit
AIS-P
(Downstream) upon
SF
Transmit
AIS-P
(Downstream) upon
SD
Unused
Transmit
AIS-P
(Downstream) upon
LOF
Transmit
AIS-P
(Downstream) upon
LOS
Transmit
AIS-P
(Downstream)
Enable
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT 7 - Transmit Path AIS upon Declaration of the Section Trace Message Unstable Defect Condition
This READ/WRITE bit-field is used to configure the Receive STM-0 TOH Processor block to automatically transmit the
Path AIS (AIS-P) Indicator via the downstream traffic (e.g., towards the Receive STM-0 POH Processor block), anytime
it declares the Section Trace Message Unstable defect condition within the incoming STM-0 data-stream.
0 - Does not configure the Receive STM-0 TOH Processor block to automatically transmit the AIS-P indicator (via the
downstream traffic) whenever (and for the duration that) it declares the Section Trace Message Unstable defect
condition.
1 - Configures the Receive STM-0 TOH Processor block to automatically transmit the AIS-P indicator (via the
downstream traffic) whenever (and for the duration that) it declares the Section Trace Message Unstable defect
condition.
NOTE: The user must also set BIT 0 (Transmit AIS-P Enable) to 1 to configure the Receive STM-0 TOH Processor
block to automatically transmit the AIS-P indicator, in response to this defect condition.
BIT 6 - Transmit Path AIS (AIS-P) upon Declaration of the Section Trace Message Mismatch Defect Condition
This READ/WRITE bit-field is used to configure the Receive STM-0 TOH Processor block to automatically transmit the
Path AIS (AIS-P) Indicator via the downstream traffic (e.g., towards the Receive STM-0 POH Processor blocks),
anytime (and for the duration that) it declares the Section Trace Message Mismatch defect condition within the incoming
STM-0 data stream.
0 - Does not configure the Receive STM-0 TOH Processor block to automatically transmit the AIS-P indicator (via the
downstream traffic) whenever it declares the Section Trace Mismatch defect condition.
1 - Configures the Receive STM-0 TOH Processor block to automatically transmit the AIS-P indicator (via the
downstream traffic) whenever (and for the duration that) it declares the Section Trace Message Mismatch defect
condition.
NOTE: The user must also set BIT 0 (Transmit AIS-P Enable) to 1 to configure the Receive STM-0 TOH Processor
block to automatically transmit the AIS-P indicator, in response to this defect condition.
BIT 5 - Transmit Path AIS upon declaration of the Signal Failure (SF) defect condition
This READ/WRITE bit-field is used to configure the Receive STM-0 TOH Processor block to automatically transmit a
Path AIS (AIS-P) Indicator via the downstream traffic (e.g., towards the Receive STM-0 POH Processor block), anytime
(and for the duration that) it declares the SF defect condition.
0 - Does not configure the Receive STM-0 TOH Processor block to transmit the AIS-P indicator (via the downstream
traffic) upon declaration of the SF defect.
1 - Configures the Receive STM-0 TOH Processor block to automatically transmit the AIS-P indicator (via the
downstream traffic) anytime (and for the duration that) it declares the SF defect condition.
NOTE: The user must also set BIT 0 (Transmit AIS-P Enable) to 1 to configure the Receive STM-0 TOH Processor
block to automatically transmit the AIS-P indicator, in response to this defect condition.
BIT 4 - Transmit Path AIS upon declaration of the Signal Degrade (SD) defect
This READ/WRITE bit-field is used to configure the Receive STM-0 TOH Processor block to automatically transmit a
Path AIS (AIS-P) Indicator via the downstream traffic (e.g., towards the Receive STM-0 POH Processor block) anytime
(and for the duration that) it declares the SD defect condition.
155
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
0 - Does not configure the Receive STM-0 TOH Processor block to transmit the AIS-P indicator (via the downstream
traffic) upon declaration of the SD defect.
1 - Configures the Receive STM-0 TOH Processor block to automatically transmit the AIS-P indicator (via the
downstream traffic) anytime (and for the duration that) it declares the SD defect condition.
NOTE: The user must also set BIT 0 (Transmit AIS-P Enable) to 1 to configure the Receive STM-0 TOH Processor
block to automatically transmit the AIS-P indicator, in response to this defect condition.
BIT 3 - Unused
BIT 2 - Transmit Path AIS upon declaration of the Loss of Frame (LOF) defect
This READ/WRITE bit-field is used to configure the Receive STM-0 TOH Processor block to automatically transmit a
Path AIS (AIS-P) Indicator via the downstream traffic (e.g., towards the Receive STM-0 POH Processor block), anytime
(and for the duration that) it declares the LOF defect condition.
0 - Does not configure the Receive STM-0 TOH Processor block to transmit the AIS-P indicator (via the downstream
traffic) upon declaration of the LOF defect.
1 - Configures the Receive STM-0 TOH Processor block to automatically transmit the AIS-P indicator (via the
downstream traffic) anytime (and for the duration that) it declares the LOF defect condition.
NOTE: The user must also set BIT 0 (Transmit AIS-P Enable) to 1 to configure the Receive STM-0 TOH Processor
block to automatically transmit the AIS-P indicator, in response to this defect condition.
BIT 1 - Transmit Path AIS upon declaration of the Loss of Signal (LOS) defect
This READ/WRITE bit-field is used to configure the Receive STM-0 TOH Processor block to automatically transmit a
Path AIS (AIS-P) Indicator via the downstream traffic (e.g., towards the Receive STM-0 POH Processor block), anytime
(and for the duration that) it declares the LOS defect condition.
0 - Does not configure the Receive STM-0 TOH Processor block to transmit the AIS-P indicator (via the downstream
traffic) anytime it declares the LOS defect condition.
1 - Configures the Receive STM-0 TOH Processor block to automatically transmit the AIS-P indicator (via the
downstream traffic) anytime (and for the duration that) it declares the LOS defect condition.
NOTE: The user must also set BIT 0 (Transmit AIS-P Enable) to 1 to configure the Receive STM-0 TOH Processor
block to automatically transmit the AIS-P indicator, in response to this defect condition.
BIT 0 - Automatic Transmission of AIS-P Enable
This READ/WRITE bit-field serves two purposes.
It is used to configure the Receive STM-0 TOH Processor block to automatically transmit the Path AIS (AIS-P) indicator,
via the down-stream traffic (e.g., towards the Receive STM-0 POH Processor block), upon detection of an SF, SD,
Section Trace Mismatch, Section Trace Unstable, LOF or LOS defect conditions.
It also is used to configure the Receive STM-0 TOH Processor block to automatically transmit a Path AIS (AIS-P)
Indicator via the downstream traffic (e.g., towards the Receive STM-0 POH Processor block) anytime it declares the
AIS-L defect condition within the incoming STM-0 datastream.
0 - Configures the Receive STM-0 TOH Processor block to NOT automatically transmit the AIS-P indicator (via the
downstream traffic) upon declaration of the AIS-L defect condition or any of the above-mentioned defect conditions.
1 - Configures the Receive STM-0 TOH Processor block to automatically transmit the AIS-P indicator (via the
downstream traffic) upon declaration of the AIS-L defect or any of the above-mentioned defect conditions.
NOTE: The user must also set the corresponding bit-fields (within this register) to 1 in order to configure the Receive
STM-0 TOH Processor block to automatically transmit the AIS-P indicator upon declaration of a given alarm/
defect condition.
TABLE 105: RECEIVE STM-0 TRANSPORT - SERIAL PORT CONTROL REGISTER (RTSPCR= 0X0267)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
Unused
BIT 2
BIT 1
BIT 0
RxTOH Clock Speed[3:0]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:4] - Unused
156
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
BIT [3:0] - RxTOHClk Output Clock Signal Speed
These READ/WRITE bit-fields are used to specify the frequency of the RxTOHClk output clock signal. The formula that
relates the contents of these register bits to the RxTOHClk frequency is presented below.
FREQ = 51.84 /[2 * (RxTOH_CLOCK_SPEED + 1)
For STS-3/STM-1 applications, the frequency of the RxTOHClk output signal must be in the range of 2.36MHz to
25.92MHz.
TABLE 106: RECEIVE STM-0 TRANSPORT - AUTO AIS(IN DOWNSTREAM E1S) CONTROL REGISTER (AAISDSCR=
0X026B)
BIT 7
BIT 6
Unused
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
Transmit AIS
(via Downstream T1/
E1s) upon
LOS
Transmit AIS
(via Downstream T1/
E1s) upon
LOF
Transmit AIS
(via Downstream T1/
E1s) upon
SD
Transmit AIS
(via Downstream T1/
E1s) upon
SF
Unused
Transmit AIS
(via Downstream T1/
E1s) Enable
R/O
R/O
R/W
R/W
R/W
R/W
R/O
R/W
0
0
0
0
0
0
0
0
BIT [7:6] - Unused
BIT 5 - Transmit E1 AIS (via Downstream T1/E1s) upon declaration of the LOS (Loss of Signal) defect condition
This READ/WRITE bit-field is used to configure each of the 28 Egress Direction Transmit E1 Framer blocks to
automatically transmit the E1 AIS Indicator via the downstream E1 signals, anytime (and for the duration that) the
Receive STM-0 TOH Processor block declares the LOS defect condition.3
0 - Does not configure all 28 of the Egress Direction Transmit E1 Framer blocks to automatically transmit the E1 AIS
Indicator via the downstream E1 signal, anytime the Receive STM-0 TOH Processor block declares the LOS defect
condition.
1 - Configures all 28 of the Egress Direction Transmit E1 Framer blocks to automatically transmit the E1 AIS Indicator
via the downstream E1 signals, anytime (and for the duration that) the Receive STM-0 TOH Processor block declares
the LOS defect condition.
BIT 4 - Transmit E1 AIS (via Downstream T1/E1s) upon declaration of the LOF (Loss of Frame) defect condition
This READ/WRITE bit-field is used to configure each of the 28 Egress Direction Transmit E1 Framer blocks to
automatically transmit the E1 AIS Indicator via the downstream E1 signals, anytime (and for the duration that) the
Receive STM-0 TOH Processor block declares the LOF defect condition.
0 - Does not configure all 28 of the Egress Direction Transmit E1 Framer blocks to automatically transmit the E1 AIS
Indicator via the downstream E1 signals, anytime the Receive STM-0 TOH Processor block declares the LOF defect
condition.
1 - Configures all 28 of the Egress Direction Transmit E1 Framer blocks to automatically transmit the E1 AIS Indicator
via the downstream E1 signals, anytime (and for the duration that) the Receive STM-0 TOH Processor block declares
the LOF defect condition.
BIT 3 - Transmit E1 AIS (via Downstream T1/E1s) upon declaration of the SD (Signal Degrade) defect condition
This READ/WRITE bit-field is used to configure each of the 28 Egress Direction Transmit E1 Framer blocks to
automatically transmit the E1 AIS Indicator via the downstream E1 signals, anytime (and for the duration that) the
Receive STM-0 TOH Processor block declares the SD defect condition.
0 - Does not configure all 28 of the Egress Direction Transmit E1 Framer blocks to automatically transmit the E1 AIS
Indicator via the downstream E1 signals, anytime the Receive STM-0 TOH Processor block declares the SD defect
condition.
1 - Configures all 28 of the Egress Direction Transmit E1 Framer blocks to automatically transmit the E1 AIS Indicator
via the downstream E1 signals, anytime (and for the duration that) the Receive STM-0 TOH Processor block declares
the SD defect condition.
BIT 2 - Transmit E1 AIS (via Downstream T1/E1s) upon declaration of the Signal Failure (SF) defect condition
This READ/WRITE bit-field is used to configure each of the 28 Egress Direction Transmit E1 Framer blocks to
157
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
automatically transmit the E1 AIS Indicator via the downstream E1 signal, anytime (and for the duration that) the
Receive STM-0 TOH Processor block declares the SF defect condition.
0 - Does not configures all 28 of the Egress Direction Transmit E1 Framer blocks to automatically transmit the E1 AIS
Indicator via the downstream E1 signal, anytime the Receive STM-0 TOH Processor block declares the SF defect
condition.
1 - Configures all 28 of the Egress Direction Transmit E1 Framer blocks to automatically transmit the E1 AIS Indicator
via the downstream E1 signals, anytime (and for the duration that) the Receive STM-0 TOH Processor block declares
the SF defect condition.
BIT 1 - Unused
BIT 0 - Automatic Transmission of E1 AIS (via the downstream E1s) Enable
This READ/WRITE bit-field serves two purposes.It is used to configure each of the 28 Egress Direction Transmit E1
Framer blocks to automatically transmit the E1 AIS Indicator via the downstream E1 signal, upon declaration of either
the SF, SD, LOS or LOF defect conditions via the Receive STM-0 TOH Processor block.
It also is used to configure each of the 28 Egress Direction Transmit E1 Framer blocks to automatically transmit the E1
AIS indicator, via its outbound E1 signals, upon declaration of the AIS-L defect condition, via the Receive STM-0 TOH
Processor block.
0 - Does not configure all 28 of the Egress Direction Transmit E1 Framer blocks to automatically transmit the E1 AIS
indicator, whenever the Receive STM-0 TOH Processor block declares either the LOS, LOF, SD, SF or AIS-L defect
conditions.
1 - Configures all 28 of the Egress Direction Transmit E1 Framer blocks to automatically transmit the E1 AIS indicator,
whenever (and for the duration that) the Receive STM-0 TOH Processor block declares either the LOS, LOF, SD, SF
or AIS-L defect conditions.
TABLE 107: RECEIVE STM-0/STM-1 TRANSPORT - A1, A2 BYTE ERROR COUNT REGISTER 1 (A1A2BE1 =
0X026E)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
Receive A1, A2 Byte Error Count[15:8]
RUR
RUR
RUR
RUR
RUR
RUR
RUR
RUR
0
0
0
0
0
0
0
0
BIT [7:0] - Receive A1, A2 Byte Error Count Register - MSB Register
This RESET-upon-READ register, along with the Receive STM-0/STM-1 Transport - A1, A2 Byte Error Count Register
- Byte
0 presents a 16-bit representation of the total number of A1 and A2 byte errors that the Receive STM-0/STM-1 TOH
Processor block has detected (within the incoming STM-0/STM-1 data-stream) since the last read of this register.
NOTE: This register contains the MSB (Most Significant Byte) of this 16-bit expression.
TABLE 108: RECEIVE STM-0/STM-1 TRANSPORT - A1, A2 BYTE ERROR COUNT REGISTER 0 (A1A2BE0 =
0X026F)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
Receive A1, A2 Byte Error Count[7:0]
RUR
RUR
RUR
RUR
RUR
RUR
RUR
RUR
0
0
0
0
0
0
0
0
BIT [7:0] - Receive A1, A2 Byte Error Count Register - LSB Register
This RESET-upon-READ register, along with the Receive STM-0/STM-1 Transport - A1, A2 Byte Error Count Register
- Byte 1 presents a 16-bit representation of the total number of A1 and A2 byte errors that the Receive STM-0/STM-1
TOH Processor block has detected (within the incoming STM-0/STM-1 data-stream) since the last read of this register.
NOTE: This register contains the LSB (Least Significant Byte) of this 16-bit expression.
158
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 109: RECEIVE STM-0/STM-1 TRANSPORT - TOH CAPTURE BUFFER INDIRECT ADDRESS REGISTER - BYTE 1
(ADDRESS LOCATION= 0X027A)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
RxTOH Capture Buffer Indirect Address Register[15:8]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:0] - RxTOH Capture Buffer Indirect Address Register[15:8]
For STS-1/EC-1/STM-0 and STS-3/STM-1 applications, this register should be kept 0x00.
TABLE 110: RECEIVE STM-0/STM-1 TRANSPORT - TOH CAPTURE BUFFER INDIRECT ADDRESS REGISTER - BYTE 0
(ADDRESS LOCATION= 0X027B)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
RxTOH Capture Buffer Indirect Address Register[7:0]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:0] - RxTOH Capture Buffer Indirect Address Register[7:0]
This register serves as the Indirect Address Register for the TOH Capture Memory. Writing to this register will load the
address of the captured TOH byte to be read on Receive TOH Capture Buffer - Indirect Data Register 0x027F.
For STS-3/STM-1 applications, the address written into this register should be of the form 00XXXXXYY where XXXXX
specifies the 5-bit field number of the TOH byte (i.e., A1 is field 0, A2 is field 1, etc...) and YY specifies the STS-1/EC1/STM-0 time slot number of the TOH byte that is requested. YY consists of the minimum number of bits required to
index all the slots contained in each field. For example, YY would have 2 bits for an STS-3/STM-1 signal to denote:
‘00b’ for STS-3/STM-1 Slot 1, ‘01b’ for STS-3/STM-1 Slot 2, ‘10b’ for STS-3/STM-1 Slot 3. Y would have 1 bit for an
STS-1/EC-1/STM-0 signal.
For STS-1/EC-1/STM-0 applications, the address written into this register should be of the form 000XXXXXY where
XXXXX specifies the 5-bit field number of the TOH byte (i.e., A1 is field 0, A2 is field 1, etc...) and Y specifies the STS1/EC-1/STM-0 time slot number of the TOH byte that is requested. Y consists of the minimum number of bits required
to index all the slots contained in each field. For example, Y would have 1 bit for an STS-1/EC-1/STM-0 signal to denote:
‘0b’ for STS-3/STM-1 Slot 1.
TABLE 111: RECEIVE STM-0/STM-1 TRANSPORT - TOH CAPTURE BUFFER INDIRECT DATA REGISTER - BYTE 0
(ADDRESS LOCATION= 0X027F)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
RxTOH Capture Buffer Indirect Data Register[7:0]
R/O
R/O
R/O
R/O
R/O
R/O
R/O
R/O
0
0
0
0
0
0
0
0
BIT [7:0] - RxTOH Capture Buffer Indirect Data Register[7:0]
Reading from this register will return the captured TOH byte indexed by the address in Receive TOH Capture Buffer Indirect Address Register 0x027B.
159
XRT86SH221
REV. 1.0.1
6.5
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
Receive Path Overhead Operation Control Register Descriptions
TABLE 112: RECEIVE STM-0 PATH - RECEIVE CONTROL REGISTER 0 (RCR0 = 0X0283)
BIT 7
BIT 6
BIT 5
BIT 4
Unused
BIT 3
BIT 2
BIT 1
BIT 0
CheckStuff
RDI-PType
REI-PError
Type
B3 Error
Type
R/O
R/O
R/O
R/O
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:4] - Unused
BIT 3 - Check (Pointer Adjustment) Stuff Select
This READ/WRITE bit-field is used to enable/disable the SDH standard recommendation that a pointer increment or
decrement operation, detected within 3 SDH frames of a previous pointer adjustment operation (e.g., negative stuff,
positive stuff) is ignored.
0 - Disables this SDH standard implementation. In this mode, all pointer-adjustment operations that are detected will
be accepted.
1 - Enables this SDH standard implementation. In this mode, all pointer-adjustment operations that are detected
within 3 SDH frame periods of a previous pointer-adjustment operation will be ignored.
BIT 2 - Path - Remote Defect Indicator Type Select
This READ/WRITE bit-field is used to configure the Receive STM-0 POH Processor block to support either the SingleBit or the Enhanced RDI-P form of signaling, as described below.
0 - Configures the Receive STM-0 POH Processor block to support Single-Bit RDI-P.
In this mode, the Receive STM-0 POH Processor block will only monitor BIT 5, within the G1 byte (of the incoming SPE
data), in order to declare and clear the RDI-P defect condition.
1 - Configures the Receive STM-0 POH Processor block to support Enhanced RDI-P (ERDI-P).
In this mode, the Receive STM-0 POH Processor block will monitor bits 5, 6 and 7, within the G1 byte, in order to declare
and clear the RDI-P defect condition.
BIT 1 - REI-P Error Type
This READ/WRITE bit-field is used to specify how the Receive STM-0 POH Processor block will count (or tally) REI-P
events, for Performance Monitoring purposes. The user can configure the Receive STM-0 POH Processor block to
increment REI-P events on either a per-bit or per-frame basis.
If the user configures the Receive STM-0 POH Processor block to increment REI-P events on a per-bit basis, then it will
increment the Receive Path REI-P Error Count register by the value of the lower nibble within the G1 byte of the
incoming STM-0 data-stream.
If the user configures the Receive STM-0 POH Processor block to increment REI-P events on a per-frame basis, then
it will increment the Receive Path REI-P Error Count register each time it receives an STM-0 frame, in which the lower
nibble of the G1 byte (bits 1 through 4) are set to a non-zero value.
0 - Configures the Receive STM-0 POH Processor block to count or tally REI-P events on a per-bit basis.
1 - Configures the Receive STM-0 POH Processor block to count or tally REI-P events on a per-frame basis.
BIT 0 - B3 Error Type
This READ/WRITE bit-field is used to specify how the Receive STM-0 POH Processor block will count (or tally) B3 byte
errors, for Performance Monitoring purposes. The user can configure the Receive STM-0 POH Processor block to
increment B3 byte errors on either a per-bit or per-frame basis.
If the user configures the Receive STM-0 POH Processor block to increment B3 byte errors on a per-bit basis, then it
will increment the Receive Path B3 Byte Error Count register by the number of bits (within the B3 byte value) that is in
error.
If the user configures the Receive STM-0 POH Processor block to increment B3 byte errors on a per-frame basis, then
it will increment the Receive Path B3 Byte Error Count register each time it receives an STM-0 frame that contains an
erred B3 byte.
160
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
0 - Configures the Receive STM-0 POH Processor block to count B3 byte errors on a per-bit basis
1 - Configures the Receive STM-0 POH Processor block to count B3 byte errors on a per-frame basis.
TABLE 113: RECEIVE STM-0 PATH - CONTROL REGISTER (PCR = 0X0286)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
Unused
BIT 0
Path Trace
Message
Unstable
Defect
Declared
R/O
R/O
R/O
R/O
R/O
R/O
R/O
R/O
0
0
0
0
0
0
0
0
BIT [7:1] - Unused
BIT 0 - Path Trace Message Unstable Defect Declared
This READ-ONLY bit-field indicates whether or not the Receive STM-0 POH Processor block is currently declaring the
Path Trace Message Unstable defect condition. The Receive STM-0 POH Processor block will declare the Path Trace
Message Unstable defect condition, whenever the Path Trace Message Unstable counter reaches the value 8. The
Path Trace Message Unstable counter will be incremented for each time that it receives a Path Trace message that
differs from the previously received message. The Path Trace Unstable counter is cleared to 0 whenever the Receive
STM-0 POH Processor block has received a given Path Trace Message 3 (or 5) consecutive times.
NOTE: Receiving a given Path Trace Message 3 (or 5) consecutive times also sets this bit-field to 0
0 - Indicates that the Receive STM-0 POH Processor block is NOT currently declaring the Path Trace Message
Unstable defect.
1 - Indicates that the Receive STM-0 POH Processor blolck is currently declaring the Path Trace Message Unstable
defect condition.
TABLE 114: RECEIVE STM-0 PATH - SDH RECEIVE POH STATUS (RPOHS = 0X0287)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
TIM-P
Defect
Declared
C2 Byte
Unstable
Defect
Declared
UNEQ-P
Defect
Declared
PLM-P
Defect
Declared
RDI-P
Defect
Declared
RDI-P
UnstableCondition
LOP-P
Defect
Declared
AIS-P
Defect
Declared
R/O
R/O
R/O
R/O
R/O
R/O
R/O
R/O
0
0
0
0
0
0
0
0
BIT 7 - Trace Identification Mismatch (TIM-P) Defect Indicator
This READ-ONLY bit-field indicates whether or not the Receive STM-0 POH Processor block is currently declaring the
Path Trace Identification Mismatch (TIM-P) defect condition. The Receive STM-0 POH Processor block will declare the
TIM-P defect condition, when none of the received 64-byte string (received via the J1 byte, within the incoming STM-0
data-stream) matches the expected 64 byte message.The Receive STM-0 POH Processor block will clear the TIM-P
defect condition, when 80% of the received 64 byte string (received via the J1 byte) matches the expected 64 byte
message.
0 - Indicates that the Receive STM-0 POH Processor block is NOT currently declaring the TIM-P defect condition.
1 - Indicates that the Receive STM-0 POH Processor block is currently declaring the TIM-P defect condition.
BIT 6 - C2 Byte (Path Signal Label Byte) Unstable Defect Declared
This READ-ONLY bit-field indicates whether or not the Receive STM-0 POH Processor block is currently declaring the
Path Signal Label Byte Unstable defect condition. The Receive STM-0 POH Processor block will declare the C2 (Path
Signal Label Byte) Unstable defect condition, whenever the C2 Byte Unstable counter reaches the value 5. The C2
Byte Unstable counter will be incremented for each time that it receives an SPE with a C2 byte value that differs from
161
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
the previously received C2 byte value. The C2 Byte Unstable counter is cleared to 0 whenever the Receive STM-0 POH
Processor block has received 3 (or 5) consecutive SPEs that each contains the same C2 byte value.Note:Receiving a
given C2 byte value in 3 (or 5) consecutive SPEs also sets this bit-field to 0.
0 - Indicates that the Receive STM-0 POH Processor block is currently NOT declaring the C2 (Path Signal Label Byte)
Unstable defect condition.
1 - Indicates that the Receive STM-0 POH Processor block is currently declaring the C2 (Path Signal Label Byte)
Unstable defect condition.
BIT 5 - Path - Unequipped (UNEQ-P) Defect Declared
This READ-ONLY bit-field indicates whether or not the Receive STM-0 POH Processor block is currently declaring the
UNEQ-P defect condition. The Receive STM-0 POH Processor block will declare the UNEQ-P defect condition, anytime
that it receives at least five (5) consecutive STM-0 frames, in which the C2 byte was set to the value 0x00 (which
indicates that the SPE is Unequipped).
The Receive STM-0 POH Processor block will clear the UNEQ-P defect condition, if it receives at least five (5)
consecutive STM-0 frames, in which the C2 byte was set to a value other than 0x00.
0 - Indicates that the Receive STM-0 POH Processor block is currently NOT declaring the UNEQ-P defect condition.
1 - Indicates that the Receive STM-0 POH Processor block is currently declaring the UNEQ-P defect condition.
NOTE: :The Receive STM-0 POH Processor block will not declare the UNEQ-P defect condition if it configured to
expect to receive STM-0 frames with C2 bytes being set to 0x00 (e.g., if the Receive STM-0 Path - Expected
Path Label Value Register -Address Location= 0x0297) is set to 0x00.
BIT 4 - Path Payload Mismatch (PLM-P) Defect Declared
This READ-ONLY bit-field indicates whether or not the Receive STM-0 POH Processor block is currently declaring the
PLM-P defect condition.The Receive STM-0 POH Processor block will declare the PLM-P defect condition, if it receives
at least five (5) consecutive STM-0 frames, in which the C2 byte was set to a value other than that which it is expecting
to receive. Whenever the Receive STM-0 POH Processor block is determining whether or not it should declare the
PLM-P defect, it will check the contents of the following two registers.
•
The Receive STM-0 Path - Received Path Label Value Register (Address Location= 0x0296).
•
The Receive STM-0 Path - Expected Path Label Value Register (Address Location= 0x0297).
The Receive STM-0 Path - Expected Path Label Value Register contains the value of the C2 bytes, that the Receive
STM-0 POH Processor blocks expects to receive.The Receive STM-0 Path - Received Path Label Value Register
contains the value of the C2 byte, that the Receive STM-0 POH Processor block has most received validated (by
receiving this same C2 byte in five consecutive STM-0 frames). The Receive STM-0 POH Processor block will declare
the PLM-P defect condition if the contents of these two register do not match. The Receive STM-0 POH Processor
block will clear the PLM-P defect condition if whenever the contents of these two registers do match.
0 - Indicates that the Receive STM-0 POH Processor block is currently NOT declaring the PLM-P defect condition.
1 - Indicates that the Receive STM-0 POH Processor block is currently declaring the PLM-P defect condition
NOTE: The Receive STM-0 POH Processor block will clear the PLM-P defect, upon declaring the UNEQ-P defect
condition.
BIT 3 - Path Remote Defect Indicator (RDI-P) Defect Declared
This READ-ONLY bit-field indicates whether or not the Receive STM-0 POH Processor block is currently declaring the
RDI-P defect condition.
If the Receive STM-0 POH Processor block is configured to support the Single-bit RDI-P function, then it will declare
the RDI-P defect condition if BIT 5 (within the G1 byte of the incoming STM-0 frame) is set to 1 for RDI-P_THRD number
of incoming consecutive STM-0 frames.
If the Receive STM-0 POH Processor block is configured to support the Enhanced RDI-P (ERDI-P) function, then it will
declare the RDI-P defect condition if Bits 5, 6 and 7 (within the G1 byte of the incoming STM-0 frame) are set to [0, 1,
0], [1, 0, 1] or [1, 1, 0] for RDI-P_THRD number of consecutive STM-0 frames.
0 - Indicates that the Receive STM-0 POH Processor block is NOT currently declaring the RDI-P defect condition.
1 - Indicates that the Receive STM-0 POH Processor block is currently declaring the RDI-P defect condition.
NOTE: The user can specify the value for RDI-P_THRD by writing the appropriate data into Bits 3 through 0 (RDI-P
THRD) within the Receive STM-0 Path - SDH Receive RDI-P Register (Address Location= 0x0293).
BIT 2 - RDI-P (Path - Remote Defect Indicator) Unstable Defect Declared
162
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
This READ-ONLY bit-field indicates whether or not the Receive STM-0 POH Processor block is currently declaring the
RDI-P Unstable defect condition. The Receive STM-0 POH Processor block will declare a RDI-P I Unstable defect
condition whenever the RDI-P Unstable Counter reaches the value RDI-P THRD. The RDI-P Unstable counter is
incremented for each time that the Receive STM-0 POH Processor block receives an RDI-P value that differs from that
of the previous STM-0 frame. The RDI-P Unstable counter is cleared to 0 whenever the same RDI-P value is received
in RDI-P_THRD consecutive STM-0 frames.
NOTE: Receiving a given RDI-P value, in RDI-P_THRD consecutive STM-0 frames also clears this bit-field to 0.
0 - Indicates that the Receive STM-0 POH Processor block is NOT currently declaring the RDI-P Unstable defect
condition.
1 - Indicates that the Receive STM-0 POH Processor block is currently declaring the RDI-P Unstable defect condition.
NOTE: The user can specify the value for RDI-P_THRD by writing the appropriate data into Bits 3 through 0 (RDI-P
THRD) within the Receive STM-0 Path - SDH Receive RDI-P Register (Address Location= 0x0293).
BIT 1 - Loss of Pointer Indicator (LOP-P) Defect Declared
This READ-ONLY bit-field indicates whether or not the Receive STM-0 POH Processor block is currently declaring the
LOP-P (Loss of Pointer) defect condition.
The Receive STM-0 POH Processor block will declare the LOP-P defect condition, if it cannot detect a valid pointer (H1
and H2 bytes, within the TOH) within 8 to 10 consecutive SDH frames. Further, the Receive STM-0 POH Processor
block will declare the LOP-P defect condition, if it detects 8 to 10 consecutive NDF events. The Receive STM-0 POH
Processor block will clear the LOP-P defect condition, whenever it detects valid pointer bytes (e.g., the H1 and H2 bytes,
within the TOH) and normal NDF value for three consecutive incoming STM-0 frames.
0 - Indicates that the Receive STM-0 POH Processor block is NOT declaring the LOP-P defect condition.
1 - Indicates that the Receive STM-0 POH Processor block is currently declaring the LOP-P defect condition.
BIT 0 - Path AIS (AIS-P) Defect Declared
This READ-ONLY bit-field indicates whether or not the Receive STM-0 POH Processor block is currently declaring the
AIS-P defect condition. The Receive STM-0 POH Processor block will declare the AIS-P defect condition if it detects
all of the following conditions within three consecutive incoming STM-0 frames.·
•
The H1, H2 and H3 bytes are set to an All Ones pattern.·
•
The entire SPE is set to an All Ones pattern.
The Receive STM-0 POH Processor block will clear the AIS-P defect condition when it detects a valid STM-0 pointer
(H1 and H2 bytes) and a set or normal NDF for three consecutive STM-0 frames.
0 - Indicates that the Receive STM-0 POH Processor block is NOT currently declaring the AIS-P defect condition.
1 - Indicates that the Receive STM-0 POH Processor block is currently declaring the AIS-P defect condition
NOTE: The Receive STM-0 POH Processor block will NOT declare the LOP-P defect condition if it detects an All Ones
pattern in the H1, H2 and H3 bytes. It will, instead, declare the AIS-P defect condition.
TABLE 115: RECEIVE STM-0 PATH - SDH RECEIVE PATH INTERRUPT STATUS 2 (RPIS2 = 0X0289)
BIT 7
BIT 6
BIT 5
Unused
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
Detection of
AIS Pointer
Interrupt
Status
Detection of
Pointer
Change
Interrupt
Status
Unused
Change in
TIM-P Defect
Condition
Interrupt
Status
Change in Path
Trace Message
Unstable Defect
Condition
Interrupt Status
R/O
R/O
R/O
RUR
RUR
R/O
RUR
RUR
0
0
0
0
0
0
0
0
BIT [7:5] - Unused
BIT 4 - Detection of AIS Pointer Interrupt Status
This RESET-upon-READ bit-field indicates whether or not the Detection of AIS Pointer interrupt has occurred since the
last read of this register.If this interrupt is enabled, then the Receive STM-0 POH Processor block will generate this
interrupt anytime it detects an AIS Pointer in the incoming STM-0 data stream.
163
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
NOTE: An AIS Pointer is defined as a condition in which both the H1 and H2 bytes (within the TOH) are each set to an
All Ones pattern.
0 - Indicates that the Detection of AIS Pointer interrupt has NOT occurred since the last read of this register.
1 - Indicates that the Detection of AIS Pointer interrupt has occurred since the last read of this register.
BIT 3 - Detection of Pointer Change Interrupt Status
This RESET-upon-READ bit-field indicates whether or not the Detection of Pointer Change Interrupt has occurred since
the last read of this register.If this interrupt is enabled, then the Receive STM-0 POH Processor block will generate an
interrupt anytime it accepts a new pointer value (e.g., H1 and H2 bytes, in the TOH bytes).
0 - Indicates that the Detection of Pointer Change Interrupt has NOT occurred since the last read of this register.
1 - Indicates that the Detection of Pointer Change Interrupt has occurred since the last read of this register.
BIT 2 - Unused
BIT 1 - Change in TIM-P (Trace Identification Mismatch) Defect Condition Interrupt
This RESET-upon-READ bit-field indicates whether or not the Change in TIM-P Defect Condition interrupt has occurred
since the last read of this register.If this interrupt is enabled, then the Receive STM-0 POH Processor block will generate
an interrupt in response to either of the following events.
•
Whenever the Receive STM-0 POH Processor block declares the TIM-P defect condition.
•
Whenever the Receive STM-0 POH Processor block clears the TIM-P defect condition.
0 - Indicates that the Change in TIM-P Defect Condition Interrupt has not occurred since the last read of this register.
1 - Indicates that the Change in TIM-P Defect Condition Interrupt has occurred since the last read of this register.
BIT 0 - Change in Path Trace Identification Message Unstable Defect Condition Interrupt Status
This RESET-upon-READ bit-field indicates whether or not the Change in Path Trace Message Unstable Defect
Condition Interrupt has occurred since the last read of this register.If this interrupt is enabled, then the Receive STM-0
POH Processor block will generate this interrupt in response to either of the following events.
•
Whenever the Receive STM-0 POH Processor block declare the Path Trace Message Unstable Defect
Condition.
•
Whenever the Receive STM-0 POH Processor block clears the Path Trace Message Unstable defect
condition.
0 - Indicates that the Change in Path Trace Message Unstable Defect Condition Interrupt has NOT occurred since
the last read of this register.
1 - Indicates that the Change in Path Trace Message Unstable Defect Condition Interrupt has occurred since the last
read of this register.
TABLE 116: RECEIVE STM-0 PATH - SDH RECEIVE PATH INTERRUPT STATUS 1 (RPIS1 = 0X028A)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
New Path
Trace
Message
Interrupt
Status
Detection of
REI-P Event
Interrupt
Status
Change in
UNEQ-P
Defect
Condition
Interrupt
Status
Change in
PLM-P
Defect
Condition
Interrupt
Status
New
C2 Byte
Interrupt
Status
Change in
C2 Byte
Unstable
Defect
Condition
Interrupt
Status
Change in
RDI-P
Unstable
Defect
Condition
Interrupt
Status
New RDI-P
Value
Interrupt
Status
RUR
RUR
RUR
RUR
RUR
RUR
RUR
RUR
0
0
0
0
0
0
0
0
BIT 7 - New Path Trace Message Interrupt Status
This RESET-upon-READ bit-field indicates whether or not the New Path Trace Message Interrupt has occurred since
the last read of this register.
If this interrupt is enabled, then the Receive STM-0 POH Processor block will generate an interrupt anytime it has
accepted (or validated) a new Path Trace Message.
164
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
0 - Indicates that the New Path Trace Message Interrupt has NOT occurred since the last read of this register.
1 - Indicates that the New Path Trace Message Interrupt has occurred since the last read of this register.
BIT 6 - Detection of REI-P Event Interrupt Status
This RESET-upon-READ bit-field indicates whether or not the Detection of REI-P Event Interrupt has occurred since
the last read of this register.
If this interrupt is enabled, then the Receive STM-0 POH Processor block will generate an interrupt anytime it detects
an REI-P event within the incoming STM-0 data-stream.
0 - Indicates that the Detection of REI-P Event Interrupt has NOT occurred since the last read of this register.
1 - Indicates that the Detection of REI-P Event Interrupt has occurred since the last read of this register.
BIT 5 - Change in UNEQ-P (Path - Unequipped) Defect Condition Interrupt Status
This RESET-upon-READ bit-field indicates whether or not the Change in UNEQ-P Defect Condition interrupt has
occurred since the last read of this register.
If this interrupt is enabled, then the Receive STM-0 POH Processor block will generate an interrupt in response to either
of the following conditions.
•
When the Receive STM-0 POH Processor block declares the UNEQ-P Defect Condition.
•
When the Receive STM-0 POH Processor block clears the UNEQ-P Defect Condition.
0 - Indicates that the Change in UNEQ-P Defect Condition Interrupt has NOT occurred since the last read of this
register.
1 - Indicates that the Change in UNEQ-P Defect Condition Interrupt has occurred since the last read of this register.
NOTE: The user can determine if the Receive STM-0 POH Processor block is currently declaring the UNEQ-P defect
condition by reading out the state of BIT 5 (UNEQ-P Defect Declared) within the Receive STM-0 Path - SDH
Receive POH Status - Byte 0 Register (Address Location= 0x0287).
BIT 4 - Change in PLM-P (Path - Payload Mismatch) Defect Condition Interrupt Status
This RESET-upon-READ bit indicates whether or not the Change in PLM-P Defect Condition interrupt has occurred
since the last read of this register.
If this interrupt is enabled, then the Receive STM-0 POH Processor block will generate an interrupt in response to either
of the following conditions.
•
When the Receive STM-0 POH Processor block declares the PLM-P Defect Condition.
•
When the Receive STM-0 POH Processor block clears the PLM-P Defect Condition.
0 - Indicates that the Change in PLM-P Defect Condition Interrupt has NOT occurred since the last read of this
register.
1 - Indicates that the Change in PLM-P Defect Condition Interrupt has occurred since the last read of this register.
BIT 3 - New C2 Byte Interrupt Status
This RESET-upon-READ bit-field indicates whether or not the New C2 Byte Interrupt has occurred since the last read
of this register.
If this interrupt is enabled, then the Receive STM-0 POH Processor block will generate an interrupt anytime it has
accepted a new C2 byte.
0 - Indicates that the New C2 Byte Interrupt has NOT occurred since the last read of this register.
1 - Indicates that the New C2 Byte Interrupt has occurred since the last read of this register.
BIT 2 - Change in C2 Byte Unstable Defect Condition Interrupt Status
This RESET-upon-READ bit-field indicates whether or not the Change in C2 Byte Unstable Defect Condition Interrupt
has occurred since the last read of this register.
If this interrupt is enabled, then the Receive STM-0 POH Processor block will generate an interrupt in response to either
of the following events.
•
When the Receive STM-0 POH Processor block declares the C2 Byte Unstable defect condition.
•
When the Receive STM-0 POH Processor block clears the C2 Byte Unstable defect condition.
0 - Indicates that the Change in C2 Byte Unstable Defect Condition Interrupt has NOT occurred since the last read of
this register.
165
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
1 - Indicates that the Change in C2 Byte Unstable Defect Condition Interrupt has occurred since the last read of this
register.
NOTE: The user can determine whether or not the Receive STM-0 POH Processor block is currently declaring the C2
Byte Unstable Defect Condition by reading out the state of BIT6 (C2 Byte Unstable Defect Declared) within the
Receive STM-0 Path - SDH Receive POH Status - Byte 0 Register (Address Location= 0x0287).
BIT 1 - Change in RDI-P Unstable Defect Condition Interrupt Status
This RESET-upon-READ bit-field indicates whether or not the Change in RDI-P Unstable Defect Condition interrupt has
occurred since the last read of this register.
If this interrupt is enabled, then the Receive STM-0 POH Processor block will generate an interrupt in response to either
of the following conditions.
•
When the Receive STM-0 POH Processor block declares an RDI-P Unstable defect condition.
•
When the Receive STM-0 POH Processor block clears the RDI-P Unstable defect condition.
0 - Indicates that the Change in RDI-P Unstable Defect Condition Interrupt has NOT occurred since the last read of
this register.
1 - Indicates that the Change in RDI-P Unstable Defect Condition Interrupt has occurred since the last read of this
register.
NOTE: The user can determine the current state of RDI-P Unstable Defect condition by reading out the state of BIT 2
(RDI-P Unstable Defect Condition) within the Receive STM-0 Path - SDH Receive POH Status - Byte 0
Register (Address Location= 0x0287).
BIT 0 - New RDI-P Value Interrupt Status
This RESET-upon-READ bit-field indicates whether or not the New RDI-P Value interrupt has occurred since the last
read of this register.
If this interrupt is enabled, then the Receive STM-0 POH Processor block will generate this interrupt anytime it receives
and validates a new RDI-P value.
0 - Indicates that the New RDI-P Value Interrupt has NOT occurred since the last read of this register.
1 - Indicates that the New RDI-P Value Interrupt has occurred since the last read of this register.
NOTE: The user can obtain the New RDI-P Value by reading out the contents of the RDI-P ACCEPT[2:0] bit-fields.
These bit-fields are located in Bits 6 through 4, within the Receive STM-0 Path - SDH Receive RDI-P Register
(Address Location= 0x0293).
TABLE 117: RECEIVE STM-0 PATH - SDH RECEIVE PATH INTERRUPT STATUS 0 (RPIS0 = 0X028B)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
Detection of
B3 Byte
Error
Interrupt
Status
Detection of
New Pointer
Interrupt
Status
Detection of
Unknown
Pointer
Interrupt
Status
Detection of
Pointer Decrement
Interrupt
Status
Detection of
Pointer
Increment
Interrupt
Status
Detection of
NDF Pointer
Interrupt
Status
Change of
LOP-P
Defect
Condition
Interrupt
Status
Change of
AIS-P Defect
Condition
Interrupt
Status
RUR
RUR
RUR
RUR
RUR
RUR
RUR
RUR
0
0
0
0
0
0
0
0
BIT 7 - Detection of B3 Byte Error Interrupt Status
This RESET-upon-READ bit-field indicates whether or not the Detection of B3 Byte Error Interrupt has occurred since
the last read of this register.
If this interrupt is enabled, then the Receive STM-0 POH Processor block will generate an interrupt anytime it detects a
B3 byte error in the incoming STM-0 data stream.
0 - Indicates that the Detection of B3 Byte Error Interrupt has NOT occurred since the last read of this interrupt.
1 - Indicates that the Detection of B3 Byte Error Interrupt has occurred since the last read of this interrupt.
BIT 6 - Detection of New Pointer Interrupt Status
166
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
This RESET-upon-READ indicates whether the Detection of New Pointer interrupt has occurred since the last read of
this register.
If this interrupt is enabled, then the Receive STM-0 POH Processor block will generate an interrupt anytime it detects a
new pointer value in the incoming STM-0 frame.
NOTE: Pointer Adjustments with NDF will not generate this interrupt.
0 - Indicates that the Detection of New Pointer Interrupt has NOT occurred since the last read of this register.
1 - Indicates that the Detection of New Pointer Interrupt has occurred since the last read of this register.
BIT 5 - Detection of Unknown Pointer Interrupt Status
This RESET-upon-READ bit-field indicates whether or not the Detection of Unknown Pointer interrupt has occurred
since the last read of this register.
If this interrupt is enabled, then the Receive STM-0 POH Processor block will generate an interrupt anytime that it
detects a pointer that does not fit into any of the following categories.
•
An Increment Pointer
•
A Decrement Pointer
•
An NDF Pointer
•
An AIS (e.g., All Ones) Pointer
•
New Pointer
0 - Indicates that the Detection of Unknown Pointer interrupt has NOT occurred since the last read of this register.
1 - Indicates that the Detection of Unknown Pointer interrupt has occurred since the last read of this register.
BIT 4 - Detection of Pointer Decrement Interrupt Status
This RESET-upon-READ bit-field indicates whether or not the Detection of Pointer Decrement Interrupt has occurred
since the last read of this register.
If this interrupt is enabled, then the Receive STM-0 POH Processor block will generate an interrupt anytime it detects a
Pointer Decrement event.
0 - Indicates that the Detection of Pointer Decrement interrupt has NOT occurred since the last read of this register.
1 - Indicates that the Detection of Pointer Decrement interrupt has occurred since the last read of this register.
167
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
BIT 3 - Detection of Pointer Increment Interrupt Status
This RESET-upon-READ bit-field indicates whether or not the Detection of Pointer Increment Interrupt has occurred
since the last read of this register. If this interrupt is enabled, then the Receive STM-0 POH Processor block will
generate an interrupt anytime it detects a Pointer Increment event.
0 - Indicates that the Detection of Pointer Increment interrupt has NOT occurred since the last read of this register.
1 - Indicates that the Detection of Pointer Increment interrupt has occurred since the last read of this register.
BIT 2 - Detection of NDF Pointer Interrupt Status
This RESET-upon-READ bit-field indicates whether or not the Detection of NDF Pointer interrupt has occurred since
the last read of this register.
If this interrupt is enabled, then the Receive STM-0 POH Processor block will generate an interrupt anytime it detects
an NDF Pointer event.
0 - Indicates that the Detection of NDF Pointer interrupt has NOT occurred since the last read of this register.
1 - Indicates that the Detection of NDF Pointer interrupt has occurred since the last read of this register.
BIT 1 - Change of LOP-P Defect Condition Interrupt Status
This RESET-upon-READ bit-field indicates whether or not the Change in LOP-P Defect Condition interrupt has occurred
since the last read of this register.
If this interrupt is enabled, then the Receive STM-0 POH Processor block will generate an interrupt in response to either
of the following events.
•
When the Receive STM-0 POH Processor block declares the LOP-P defect condition.
•
·When the Receive STM-0 POH Processor block clears the LOP-P defect condition.
0 - Indicates that the Change in LOP-P Defect Condition interrupt has NOT occurred since the last read of this
register.
1 - Indicates that the Change in LOP-P Defect Condition interrupt has occurred since the last read of this register.
NOTE: The user can determine if the Receive STM-0 POH Processor block is currently declaring the LOP-P defect
condition by reading out the state of BIT 1 (LOP-P Defect Declared) within the Receive STM-0 Path - SDH
Receive POH Status - Byte 0 Register (Address Location=0x0287).
BIT 0 - Change of AIS-P Defect Condition Interrupt Status
This RESET-upon-READ bit-field indicates whether or not the Change of AIS-P Defect Condition Interrupt has occurred
since the last read of this register.
If this interrupt is enabled, then the Receive STM-0 POH Processor block will generate an interrupt in response to either
of the following events.
•
Whenever the Receive STM-0 POH Processor block declares the AIS-P defect condition.
•
Whenever the Receive STM-0 POH Processor block clears the AIS-P defect condition.
0 - Indicates that the Change of AIS-P Defect Condition Interrupt has NOT occurred since the last read of this register.
1 - Indicates that the Change of AIS-P Defect Condition Interrupt has occurred since the last read of this register.
NOTE: The user can determine if the Receive STM-0 POH Processor block is currently declaring the AIS-P defect
condition by reading out the state of BIT 0 (AIS-P Defect Declared) within the Receive STM-0 Path - SDH
Receive POH Status - Byte 0 Register (Address Location= 0x0287).
168
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 118: RECEIVE STM-0 PATH - SDH RECEIVE PATH INTERRUPT ENABLE 2 (RPIE2 = 0X028D)
BIT 7
BIT 6
BIT 5
Unused
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
Detection of
AIS Pointer
Interrupt
Enable
Detection of
Pointer
Change
Interrupt
Enable
Unused
Change in
TIM-P Defect
Condition
Interrupt
Enable
Change in
Path Trace
Message
Unstable
Defect
Condition
Interrupt
Enable
R/O
R/O
R/O
R/W
R/W
R/O
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:5] - Unused
BIT 4 - Detection of AIS Pointer Interrupt Enable
This READ/WRITE bit-field is used to either enable or disable the Detection of AIS Pointer interrupt.
If this interrupt is enabled, then the Receive STM-0 POH Processor block will generate an interrupt anytime it detects
an AIS Pointer, in the incoming STM-0 data stream.
NOTE: An AIS Pointer is defined as a condition in which both the H1 and H2 bytes (within the TOH) are each set to an
All Ones Pattern.
0 - Disables the Detection of AIS Pointer Interrupt.
1 - Enables the Detection of AIS Pointer Interrupt.
BIT 3 - Detection of Pointer Change Interrupt Enable
This READ/WRITE bit-field is used to either enable or disable the Detection of Pointer Change Interrupt.
If this interrupt is enabled, then the Receive STM-0 POH Processor block will generate an interrupt anytime it has
accepted a new pointer value.
0 - Disables the Detection of Pointer Change Interrupt.
1 - Enables the Detection of Pointer Change Interrupt.
BIT 2 - Unused
BIT 1 - Change in TIM-P (Trace Identification Mismatch) Defect Condition Interrupt
This READ/WRITE bit-field is used to either enable or disable the Change in TIM-P Condition interrupt.
If this interrupt is enabled, then the Receive STM-0 POH Processor block will generate an interrupt in response to either
of the following events.
•
If the TIM-P defect condition is declared.
•
If the TIM-P defect condition is cleared.
0 - Disables the Change in TIM-P Defect Condition Interrupt.
1 - Enables the Change in TIM-P Defect Condition Interrupt.
BIT 0 - Change in Path Trace Message Unstable Defect Condition Interrupt Status
This READ/WRITE bit-field is used to either enable or disable the Change in Path Trace Message Unstable Defect
Condition Interrupt.
If this interrupt is enabled, then the Receive STM-0 POH Processor block will generate an interrupt in response to either
of the following events.
•
Whenever the Receive STM-0 POH Processor block declares the Path Trace Message Unstable Defect
Condition.· Whenever the Receive STM-0 POH Processor block clears the Path Trace Message Unstable
Defect Condition.
0 - Disables the Change in Path Trace Message Unstable Defect Condition interrupt.
1 - Enables the Change in Path Trace Message Unstable Defect Condition interrupt.
169
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
TABLE 119: RECEIVE STM-0 PATH - SDH RECEIVE PATH INTERRUPT ENABLE 1 (RPIE1 = 0X028E)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
New Path
Trace Message Interrupt Enable
Detection of
REI-P Event
Interrupt
Enable
Change in
UNEQ-P
Defect Condition Interrupt Enable
Change in
PLM-P
Defect Condition Interrupt Enable
New C2 Byte
Interrupt
Enable
Change in
C2 Byte
Unstable
Defect Condition Interrupt Enable
Change in
RDI-P
Unstable
Defect Condition Interrupt Enable
New RDIPValue Interrupt Enable
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT 7 - New Path Trace Message Interrupt Enable
This READ/WRITE bit-field is used to either enable or disable the New Path Trace Message Interrupt.
If this interrupt is enabled, then the Receive STM-0 POH Processor block will generate an interrupt anytime it has
accepted (or validated) and new Path Trace Message.
0 - Disables the New Path Trace Message Interrupt.
1 - Enables the New Path Trace Message Interrupt.
BIT 6 - Detection of REI-P Event Interrupt Enable
This READ/WRITE bit-field is used to either enable or disable the Detection of REI-P Event Interrupt.
If this interrupt is enabled, then he Receive STM-0 POH Processor block will generate an interrupt anytime it detects an
REI-P condition in the coming STM-0 data-stream.
0 - Disables the Detection of REI-P Event Interrupt.
1 - Enables the Detection of REI-P Event Interrupt.
BIT 5 - Change in UNEQ-P (Path - Unequipped) Defect Condition Interrupt Enable
This READ/WRITE bit-field is used to either enable or disable the Change in UNEQ-P Defect Condition interrupt.
If this interrupt is enabled, then the Receive STM-0 POH Processor block will generate an interrupt in response to either
of the following conditions
•
When the Receive STM-0 POH Processor block declares the UNEQ-P Defect Condition.
•
When the Receive STM-0 POH Processor block clears the UNEQ-P Defect Condition.
0 - Disables the Change in UNEQ-P Defect Condition Interrupt.
1 - Enables the Change in UNEQ-P Defect Condition Interrupt.
BIT 4 - Change in PLM-P (Path - Payload Label Mismatch) Defect Condition Interrupt Enable
This READ/WRITE bit is used to either enable or disable the Change in PLM-P Defect Condition interrupt.
If this interrupt is enabled, then the Receive STM-0 POH Processor block will generate an interrupt in response to either
of the following conditions.
•
Whenever the Receive STM-0 POH Processor block declares the PLM-P defect Condition.
•
Whenever the Receive STM-0 POH Processor block clears the PLM-P defect Condition.
0 - Disables the Change in PLM-P Defect Condition Interrupt.
1 - Enables the Change in PLM-P Defect Condition Interrupt.
BIT 3 - New C2 Byte Interrupt Enable
This READ/WRITE bit-field is used to either enable or disable the New C2 Byte Interrupt.
If this interrupt is enabled, then the Receive STM-0 POH Processor block will generate an interrupt anytime it has
accepted a new C2 byte.
0 - Disables the New C2 Byte Interrupt.
1 - Enables the New C2 Byte Interrupt.
170
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
NOTE: The user can obtain the value of this New C2 byte by reading the contents of the Receive STM-0 Path Received Path Label Value Register (Address Location= 0x0296).
BIT 2 - Change in C2 Byte Unstable Defect Condition Interrupt Enable
This READ/WRITE bit-field is used to either enable or disable the Change in C2 Byte Unstable Condition Interrupt.
If this interrupt is enabled, then the Receive STM-0 POH Processor block will generate an interrupt in response to either
of the following events.
•
When the Receive STM-0 POH Processor block declares the C2 Byte Unstable defect condition.
•
When the Receive STM-0 POH Processor block clears the C2 Byte Unstable defect condition.
0 - Disables the Change in C2 Byte Unstable Defect Condition Interrupt.
1 - Enables the Change in C2 Byte Unstable Defect Condition Interrupt.
BIT 1 - Change in RDI-P Unstable Defect Condition Interrupt Enable
This READ/WRITE bit-field is used to either enable or disable the Change in RDI-P Unstable Defect Condition interrupt.
If this interrupt is enabled, then the Receive STM-0 POH Processor block will generate an interrupt in response to either
of the following conditions.
•
Whenever the Receive STM-0 POH Processor block declares the RDI-P Unstable defect condition.
•
Whenever the Receive STM-0 POH Processor block clears the RDI-P Unstable defect condition.
0 - Disables the Change in RDI-P Unstable Defect Condition Interrupt.
1 - Enables the Change in RDI-P Unstable Defect Condition Interrupt.
BIT 0 - New RDI-P Value Interrupt Enable
This READ/WRITE bit-field is used to either enable or disable the New RDI-P Value interrupt.If this interrupt is enabled,
then the Receive STM-0 POH Processor block will generate this interrupt anytime it receives and validates a new RDIP value.
0 - Disables the New RDI-P Value Interrupt.
1 - Enable the New RDI-P Value Interrupt.
171
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
TABLE 120: RECEIVE STM-0 PATH - SDH RECEIVE PATH INTERRUPT ENABLE 0 (RPIE0 = 0X028F)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
Detection of
B3 Byte
ErrorInterruptEnable
Detection of
New Pointer
Interrupt
Enable
Detection of
Unknown
Pointer Interrupt Enable
Detection of
Pointer Decrement Interrupt Enable
Detection of
Pointer
IncrementInterrupt
Enable
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
Detection of
Change of
Change of
NDF PointerLOP-P
AIS-P
Interrupt
DefectCondi- DefectCondiEnable
tion Interrupt tionInterrupt
Enable
Enable
BIT 7 - Detection of B3 Byte Error Interrupt Enable
This READ/WRITE bit-field is used to either enable or disable the Detection of B3 Byte Error Interrupt.
If this interrupt is enabled, then the Receive STM-0 POH Processor block will generate an interrupt anytime it detects
a B3-byte error in the incoming STM-0 data-stream.
0 - Disables the Detection of B3 Byte Error interrupt.
1 - Enables the Detection of B3 Byte Error interrupt.
BIT 6 - Detection of New Pointer Interrupt Enable
This READ/WRITE bit-field is used to either enable or disable the Detection of New Pointer interrupt.
If this interrupt is enabled, then the Receive STM-0 POH Processor block will generate an interrupt anytime it detects a
new pointer value in the incoming STM-0 frame.
NOTE: :Pointer Adjustments with NDF will not generate this interrupt.
0 - Disables the Detection of New Pointer Interrupt.
1 - Enables the Detection of New Pointer Interrupt.
BIT 5 - Detection of Unknown Pointer Interrupt Enable
This READ/WRITE bit-field is used to either enable or disable the Detection of Unknown Pointer interrupt.
If this interrupt is enabled, then the Receive STM-0 POH Processor block will generate an interrupt anytime it detects a
Pointer Adjustment that does not fit into any of the following categories.· An Increment Pointer.· A Decrement Pointer·
An NDF Pointer· AIS Pointer· New Pointer.
0 - Disables the Detection of Unknown Pointer Interrupt.
1 - Enables the Detection of Unknown Pointer Interrupt.
BIT 4 - Detection of Pointer Decrement Interrupt Enable
This READ/WRITE bit-field is used to enable or disable the Detection of Pointer Decrement Interrupt.
If this interrupt is enabled, then the Receive STM-0 TOH Processor block will generate an interrupt anytime it detects a
Pointer-Decrement event.
0 - Disables the Detection of Pointer Decrement Interrupt.
1 - Enables the Detection of Pointer Decrement Interrupt.
BIT 3 - Detection of Pointer Increment Interrupt Enable
This READ/WRITE bit-field is used to either enable or disable the Detection of Pointer Increment Interrupt.
If this interrupt is enabled, then the Receive STM-0 POH Processor block will generate an interrupt anytime it detects
a Pointer Increment event.
0 - Disables the Detection of Pointer Increment Interrupt.
1 - Enables the Detection of Pointer Increment Interrupt.
BIT 2 - Detection of NDF Pointer Interrupt Enable
This READ/WRITE bit-field is used to either enable or disable the Detection of NDF Pointer Interrupt.
If this interrupt is enabled, then the Receive STM-0 POH Processor block will generate an interrupt anytime it detects
an NDF Pointer event.
172
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
0 - Disables the Detection of NDF Pointer interrupt.
1 - Enables the Detection of NDF Pointer interrupt.
BIT 1 - Change of LOP-P Defect Condition Interrupt Enable
This READ/WRITE bit-field is used to either enable or disable the Change in LOP (Loss of Pointer) Condition interrupt.
If this interrupt is enabled, then the Receive STM-0 POH Processor block will generate an interrupt in response to either
of the following events.
•
When the Receive STM-0 POH Processor block declares the LOP-P defect condition condition.
•
When the Receive STM-0 POH Processor block clears the LOP-P defect condition.
0 - Disable the Change of LOP-P Defect Condition Interrupt.
1 - Enables the Change of LOP-P Defect Condition Interrupt.
NOTE: The user can determine the current state of the LOP-P Defect condition by reading out the contents of BIT 1
(LOP-P Defect Declared) within the Receive STM-0 Path - SDH Receive POH Status - Byte 0 (Address
Location= 0x0287).
BIT 0 - Change of AIS-P Defect Condition Interrupt Enable
This READ/WRITE bit-field is used to either enable or disable the Change of AIS-P (Path AIS) Defect Condition
interrupt.
If this interrupt is enabled, then the Receive STM-0 POH Processor block will generate an interrupt in response to either
of the following events.
•
When the Receive STM-0 POH Processor block declares the AIS-P Defect condition.
•
When the Receive STM-0 POH Processor block clears the AIS-P Defect condition.
0 - Disables the Change of AIS-P Defect Condition Interrupt.
1 - Enables the Change of AIS-P Defect Condition Interrupt.
NOTE: The user can determine the current state of the AIS-P Defect Condition by reading out the contents of BIT 0
(AIS-P Defect Declared) within the Receive STM-0 Path - SDH Receive POH Status - Byte 0 (Address
Location= 0x0287).
173
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 121: RECEIVE STM-0 PATH - SDH RECEIVE RDI-P REGISTER (RRDIPR = 0X0293)
BIT 7
BIT 6
Unused
BIT 5
BIT 4
BIT 3
RDI-P_ACCEPT[2:0]
BIT 2
BIT 1
BIT 0
RDI-P THRESHOLD[3:0]
R/O
R/O
R/O
R/O
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT 7 - Unused
BIT [6:4] - Accepted RDI-P Value
These READ-ONLY bit-fields contain the value of the most recently accepted RDI-P (e.g., bits 5, 6 and 7 within the G1
byte) value that has been accepted by the Receive STM-0 POH Processor block.
NOTE: A given RDI-P value will be accepted by the Receive STM-0 POH Processor block, if this RDI-P value has been
consistently received in RDI-P THRESHOLD[3:0] number of STM-0 frames.
BIT [3:0] - RDI-P Threshold[3:0]
These READ/WRITE bit-fields are used to defined the RDI-P Acceptance Threshold for the Receive STM-0 POH
Processor Block.
The RDI-P Acceptance Threshold is the number of consecutive STM-0 frames, in which the Receive STM-0 POH
Processor block must receive a given RDI-P value, before it accepts or validates it.
The most recently accepted RDI-P value is written into the RDI-P ACCEPT[2:0] bit-fields, within this register.
TABLE 122: RECEIVE STM-0 PATH - RECEIVED PATH LABEL VALUE (RPLV = 0X0296)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
Received_C2_Byte_Value[7:0]
R/O
R/O
R/O
R/O
R/O
R/O
R/O
R/O
1
1
1
1
1
1
1
1
BIT [7:0] - Received Filtered C2 Byte Value
These READ-ONLY bit-fields contain the value of the most recently accepted C2 byte, via the Receive STM-0 POH
Processor block.
The Receive STM-0 POH Processor block will accept a C2 byte value (and load it into these bit-fields) if it has received
a consistent C2 byte, in five (5) consecutive STM-0 frames.
NOTE: The Receive STM-0 POH Processor block uses this register, along the Receive STM-0 Path - Expected Path
Label Value Register (Address Location = 0x0297), when declaring or clearing the UNEQ-P and PLM-P defect
conditions.
174
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 123: RECEIVE STM-0 PATH - EXPECTED PATH LABEL VALUE (EPLV = 0X0297)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
Expected_C2_Byte_Value[7:0]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
1
1
1
1
1
1
1
1
BIT [7:0] - Expected C2 Byte Value
These READ/WRITE bit-fields are used to specify the C2 (Path Label Byte) value, that the Receive STM-0 POH
Processor block should expect when declaring or clearing the UNEQ-P and PLM-P defect conditions.
If the contents of the Received C2 Byte Value[7:0] (see Receive STM-0 Path - Received Path Label Value register)
matches the contents in these register, then the Receive STM-0 POH will not declare any defect conditions.
NOTE: The Receive STM-0 POH Processor block uses this register, along with the Receive STM-0 Path - Receive
Path Label Value Register (Address Location = 0x0296), when declaring or clearing the UNEQ-P and PLM-P
defect conditions.
TABLE 124: RECEIVE STM-0 PATH - B3 BYTE ERROR COUNT REGISTER 3 (B3BECR3 = 0X0298)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
B3_Byte_Error_Count[31:24]
RUR
RUR
RUR
RUR
RUR
RUR
RUR
RUR
0
0
0
0
0
0
0
0
BIT [7:0] - B3 Byte Error Count - MSB
This RESET-upon-READ register, along with Receive STM-0 Path - B3 Byte Error Count Register - Bytes 2 through 0,
function as a 32 bit counter, which is incremented anytime the Receive STM-0 POH Processor block detects a B3 byte
error.
NOTES:
1. If the Receive STM-0 POH Processor block is configured to count B3 byte errors on a per-bit basis, then
it will increment this 32 bit counter by the number of bits, within the B3 byte (of each incoming STM-0 SPE)
that are in error.
2. If the Receive STM-0 POH Processor block is configured to count B3 byte errors on a per-frame basis,
then it will increment this 32 bit counter each time that it receives an STM-0 SPE that contains an erred B3
byte.
175
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
TABLE 125: RECEIVE STM-0 PATH - B3 BYTE ERROR COUNT REGISTER 2 (B3BECR2 = 0X0299)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
B3_Byte_Error_Count[23:16]
RUR
RUR
RUR
RUR
RUR
RUR
RUR
RUR
0
0
0
0
0
0
0
0
BIT [7:0] - B3 Byte Error Count (Bits 23 through 16)
This RESET-upon-READ register, along with Receive STM-0 Path - B3 Byte Error Count Register - Bytes 3, 1 and 0,
function as a 32 bit counter, which is incremented anytime the Receive STM-0 POH Processor block detects a B3 byte
error.
NOTES:
1. If the Receive STM-0 POH Processor block is configured to count B3 byte errors on a per-bit basis, then
it will increment this 32 bit counter by the number of bits, within the B3 byte (of each incoming STM-0 SPE)
that are in error.
2. If the Receive STM-0 POH Processor block is configured to count B3 byte errors on a per-frame basis,
then it will increment this 32 bit counter each time that it receives an STM-0 SPE that contains an erred B3
byte.
TABLE 126: RECEIVE STM-0 PATH - B3 BYTE ERROR COUNT REGISTER 1 (B3BECR1 = 0X029A)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
B3_Byte_Error_Count[15:8]
RUR
RUR
RUR
RUR
RUR
RUR
RUR
RUR
0
0
0
0
0
0
0
0
BIT [7:0] - B3 Byte Error Count - (Bits 15 through 8)
This RESET-upon-READ register, along with Receive STM-0 Path - B3 Byte Error Count Register - Bytes 3, 2 and 0,
function as a 32 bit counter, which is incremented anytime the Receive STM-0 POH Processor block detects a B3 byte
error.
NOTES:
1.
If the Receive STM-0 POH Processor block is configured to count B3 byte errors on a per-bit basis, then it will
increment this 32 bit counter by the number of bits, within the B3 byte (of each incoming STM-0 SPE) that are in
error.
2.
If the Receive STM-0 POH Processor block is configured to count B3 byte errors on a per-frame basis, then it will
increment this 32 bit counter each time that it receives an STM-0 SPE that contains an erred B3 byte.
176
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 127: RECEIVE STM-0 PATH - B3 BYTE ERROR COUNT REGISTER 0 (B3BECR0 = 0X029B)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
B3_Byte_Error_Count[7:0]
RUR
RUR
RUR
RUR
RUR
RUR
RUR
RUR
0
0
0
0
0
0
0
0
BIT [7:0] - B3 Byte Error Count - LSB
This RESET-upon-READ register, along with Receive STM-0 Path - B3 Byte Error Count Register - Bytes 3 through 1
function as a 32 bit counter, which is incremented anytime the Receive STM-0 POH Processor block detects a B3 byte
error.
NOTES:
1. If the Receive STM-0 POH Processor block is configured to count B3 byte errors on a per-bit basis, then
it will increment this 32 bit counter by the number of bits, within the B3 byte (of each incoming STM-0 SPE)
that are in error.
2. f the Receive STM-0 POH Processor block is configured to count B3 byte errors on a per-frame basis,
then it will increment this 32 bit counter each time that it receives an STM-0 SPE that contains an erred B3
byte.
TABLE 128: RECEIVE STM-0 PATH - REI-P EVENT COUNT REGISTER 3 (REIPECR3 = 0X029C)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
REI-P Event_Count[31:24]
RUR
RUR
RUR
RUR
RUR
RUR
RUR
RUR
0
0
0
0
0
0
0
0
BIT [7:0] - REI-P Event Count - MSB
This RESET-upon-READ register, along with Receive STM-0 Path - REI-P Error Count Register - Bytes 2 through 0,
function as a 32 bit counter, which is incremented anytime the Receive STM-0 POH Processor block detects a Path Remote Error Indicator event within the incoming STM-0 SPE data-stream.
NOTES:
1.
If the Receive STM-0 POH Processor block is configured to count REI-P events on a per-bit basis, then it will
increment this 32 bit counter by the nibble-value within the REI-P field of the incoming G1 byte within each
incoming STM-0 SPE.
2.
If the Receive STM-0 POH Processor block is configured to count REI-P events on a per-frame basis, then it will
increment this 32 bit counter each time that it receives an STM-0 SPE that contains a non-zero REI-P value.
177
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 129: RECEIVE STM-0 PATH - REI-P EVENT COUNT REGISTER 2 (REIPECR2 = 0X029D)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
REI-P_Event_Count[23:16]
RUR
RUR
RUR
RUR
RUR
RUR
RUR
RUR
0
0
0
0
0
0
0
0
BIT [7:0] - REI-P Event Count (Bits 23 through 16)
This RESET-upon-READ register, along with Receive STM-0 Path - REI-P Error Count Register - Bytes 3, 1 and 0,
function as a 32 bit counter, which is incremented anytime the Receive STM-0 POH Processor block detects a Path Remote Error Indicator event within the inconing STM-0 SPE data-stream.
NOTES:
1. If the Receive STM-0 POH Processor block is configured to count REI-P events on a per-bit basis, then it
will increment this 32 bit counter by the nibble-value within the REI-P field of the incoming G1 byte within each
incoming STM-0 frame.
2. If the Receive STM-0 POH Processor block is configured to count REI-P events on a per-frame basis,
then it will increment this 32 bit counter each time that it receives an STM-0 SPE that contains a non-zero
REI-P value.
TABLE 130: RECEIVE STM-0 PATH - REI-P EVENT COUNT REGISTER 1 (REIPECR1 = 0X029E)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
REI-P_Event_Count[15:8]
RUR
RUR
RUR
RUR
RUR
RUR
RUR
RUR
0
0
0
0
0
0
0
0
BIT [7:0] - REI-P Event Count - (Bits 15 through 8)
This RESET-upon-READ register, along with Receive STM-0 Path - REI-P Error Count Register - Bytes 3, 2 and 0,
function as a 32 bit counter, which is incremented anytime the Receive STM-0 POH Processor block detects a Path Remote Error Indicator event within the incoming STM-0 SPE data-stream.
NOTES:
1. If the Receive STM-0 POH Processor block is configured to count REI-P events on a per-bit basis, then it
will increment this 32 bit counter by the nibble-value within the REI-P field of the incoming G1 byte within each
incoming STM-0 SPE.
2. If the Receive STM-0 POH Processor block is configured to count REI-P events on a per-frame basis,
then it will increment this 32 bit counter each time that it receives an STM-0 SPE that contains a non-zero
REI-P value
178
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 131: RECEIVE STM-0 PATH - REI-P EVENT COUNT REGISTER 0 (REIPECR0 = 0X029F)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
REI-P_Event_Count[7:0]
RUR
RUR
RUR
RUR
RUR
RUR
RUR
RUR
0
0
0
0
0
0
0
0
BIT [7:0] - REI-P Event Count - LSB
This RESET-upon-READ register, along with Receive STM-0 Path - REI-P Error Count Register - Bytes 3 through 1,
function as a 32 bit counter, which is incremented anytime the Receive STM-0 POH Processor block detects a Path Remote Error Indicator event within the incoming STM-0 SPE data-stream.
NOTES:
1. If the Receive STM-0 POH Processor block is configured to count REI-P events on a per-bit basis, then it
will increment this 32 bit counter by the nibble-value within the REI-P field of the incoming G1 byte.
2. If the Receive STM-0 POH Processor block is configured to count REI-P events on a per-frame basis,
then it will increment this 32 bit counter each time that it receives an STM-0 SPE that contains a non-zero
REI-P value.
TABLE 132: RECEIVE STM-0 PATH - RECEIVE PATH TRACE MESSAGE BUFFER CONTROL REGISTER (RPTMBCR =
0X02A3)
BIT 7
BIT 6
Unused
BIT 5
BIT 4
BIT 3
BIT 2
New Message
Ready
Receive
Path Trace
Message
Buffer Read
Select
Receive
Path Trace
Message
Accept
Threshold
Path Trace
Message
Alignment
Type
BIT 1
BIT 0
Receive Path Trace
Message Length[1:0]
R/O
R/O
R/O
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:6] - Unused
BIT 5 - New Message Ready
This READ/WRITE bit-field indicates whether or not the Receive Path Trace Message buffer has received a new
expected value.
0 - Indicates NO new expected value has been downloaded into the receive J1 trace buffer.
1 - Indicates a new expected value has been downloaded into the receive J1 trace buffer and can be used to make
comparisons with the accepted J1 message.
BIT 4 - Receive Path Trace Message Buffer Read Selection
This READ/WRITE bit-field is used to specify which of the following Receive Path Trace Message buffer segments to
read.
a. The Actual Receive Path Trace Message Buffer. The Actual Receive Path Trace Message Buffer contains the
contents of the most recently received (and accepted) Path Trace Message via the incoming STM-0 data-stream.
b. The Expected Receive Path Trace Message Buffer. The Expected Receive Path Trace Message Buffer contains
the contents of the Path Trace Message that the user expects to receive. The contents of this particular buffer are
usually specified by the user.
0 - Executing a READ to the Receive J1 Trace Buffer, will return contents within the Valid Message buffer.
1 - Executing a READ to the Receive J1 Trace Buffer, will return contents within the Expected Message Buffer.
NOTE: In the case of the Receive STM-0 POH Processor block, the Receive J1 Trace Buffer is located at Address
Location 0x0400 through 0x043F.
179
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
BIT 3 - Path Trace Message Accept Threshold
This READ/WRITE bit-field is used to select the number of consecutive times that the Receive STM-0 POH Processor
block must receive a given Receive Trace Message, before it is accepted and loaded into the Receive Path Trace
Message.
0 - The Receive STM-0 POH Processor block accepts the Path Trace Message after it has received it the third time
in succession.
1 - The Receive SDH POH Processor block accepts the incoming Path Trace Message after it has received in the
fifth time in succession.
BIT 2 - Path Trace Message Alignment Type
This READ/WRITE bit-field is used to specify have the Receive STM-0 POH Processor block will locate the boundary
of the J1 Trace Message.
0 - Message boundary is indicated by Line Feed.
1 - Message boundary is indicated by the presence of a 1 in the MSB of a the first byte (within the J1 Trace Message).
BIT [1:0] - Path Trace Message Length[1:0]
These READ/WRITE bit-fields are used to specify the length of the Receive Path Trace Message that the Receive STM0 POH Processor block will receive. The relationship between the content of these bit-fields and the corresponding
Receive Path Trace Message Length is presented below.
Receive Trace Path Message Length
MSG LENGTH[1:0]
RESULTING PATH TRACE MESSAGE LENGTH
00
1 Byte
01
16 Bytes
10/11
64 Bytes
TABLE 133: RECEIVE STM-0 PATH - POINTER VALUE 1 (PV1 = 0X02A6)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
Unused
BIT 1
BIT 0
Current_Pointer ValueMSB[9:8]
R/O
R/O
R/O
R/O
R/O
R/O
R/O
R/O
0
0
0
0
0
0
0
0
BIT [7:2] - Unused
BIT [1:0] - Current Pointer Value - MSB
These READ-ONLY bit-fields, along with that from the Receive STM-0 Path - Pointer Value - Byte 0 Register combine
to reflect the current value of the pointer that the Receive STM-0 POH Processor block is using to locate the SPE within
the incoming STM-0 data stream.Note
These register bits comprise the Upper Byte value of the Pointer Value.
180
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 134: RECEIVE STM-0 PATH - POINTER VALUE 0 (PV0 = 0X02A7)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
Current_Pointer_Value_LSB[7:0]
R/O
R/O
R/O
R/O
R/O
R/O
R/O
R/O
0
0
0
0
0
0
0
0
BIT [7:0] - Current Pointer Value - LSB
These READ-ONLY bit-fields, along with that from the Receive STM-0 Path - Pointer Value - Byte 1 Register combine
to reflect the current value of the pointer that the Receive STM-0 POH Processor block is using to locate the SPE within
the incoming STM-0 data stream.Note
These register bits comprise the Lower Byte value of the Pointer Value.
TABLE 135: RECEIVE STM-1 PATH - LOSS OF POINTER CONCATENATION DEFECT (RLOPCDSR= 0X02AB)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
Unused
BIT 2
BIT 1
LOP-C
LOP-C
Defect
Defect
Declared
Declared
STS-1/STM0 STS-1/STM0
time-slot #3 time-slot #2
BIT 0
Unused
R/O
R/O
R/O
R/O
R/O
R/O
R/O
R/O
0
0
0
0
0
0
0
0
BIT [7:3] - Unused
BIT 2 - Loss of Pointer Concatenation Defect Declaration on STM-0/EC-1/STS-1 Time Slot #3
This READ-ONLY bit-field indicates whether or not the Receive STM-1 POH Processor block is declaring the LOP-C
(Loss of Pointer – Concatenation) defect condition with STM-0/EC-1/STS-1 time-slot #3 (within the incoming STM-1
signal).
The Receive STM-1 POH Processor block will declare the LOP-C defect condition, with STM-0/EC-1/STS-1 time-slot
#3; if it does not receive the “Concatenation Indicator” value of “0x93FF” in the H1, H2 bytes (associated with STM-0/
EC-1/STS-1 time-slot # 3) for 8 consecutive STM-1 frames.
0 – Indicates that the Receive STM-1 POH Processor block is NOT currently declaring the LOP-C defect condition
with STM-0/EC-1/STS-1 time-slot #3 within the incoming STM-1 data-stream.
1 – Indicates that the Receive STM-1 POH Processor block is currently declaring the LOP-C defect condition with
STM-0/EC-1/STS-1 timeslot #3 within the incoming STM-1 data-stream.
NOTE: This bit-field is only valid if the XRT86SH328 is receiving and processing an STM-1 signal.
BIT 1 - Loss of Pointer Concatenation Defect Declaration on STM-0/EC-1/STS-1 Time Slot #2
This READ-ONLY bit-field indicates whether or not the Receive STM-1 POH Processor block is declaring the LOP-C
(Loss of Pointer – Concatenation) defect condition with STM-0/EC-1/STS-1 time-slot #2 (within the incoming STM-1
signal).
The Receive STM-1 POH Processor block will declare the LOP-C defect condition, with STM-0/EC-1/STS-1 time-slot
#2; if it does not receive the “Concatenation Indicator” value of “0x93FF” in the H1, H2 bytes (associated with STM-0/
EC-1/STS-1 time-slot #2) for 8 consecutive STM-1 frames.
0 – Indicates that the Receive STM-1 POH Processor block is NOT currently declaring the LOP-C defect condition
with STM-0/EC-1/STS-1 time-slot #2 within the incoming STM-1 data-stream.
1 – Indicates that the Receive STM-1 POH Processor block is currently declaring the LOP-C defect condition with
STM-0/EC-1/STS-1 timeslot #2 within the incoming STM-1 data-stream.
NOTE: This bit-field is only valid if the XRT86SH328 is receiving and processing an STM-1 signal.
BIT 0 - Unused
181
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 136: RECEIVE STM-1 PATH - AIS CONCATENATION DEFECT (RAISCDSR= 0X02B3)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
Unused
BIT 2
BIT 1
AIS-C Defect AIS-C Defect
Declared
Declared
STS-1/STM0 STS-1/STM0
time-slot #3 time-slot #2
BIT 0
Unused
R/O
R/O
R/O
R/O
R/O
R/O
R/O
R/O
0
0
0
0
0
0
0
0
BIT [7:3] - Unused
BIT 2 - Alarm Indication Signal Concatenation Defect Declaration on STM-0/EC-1/STS-1 Time Slot #3
This READ-ONLY bit-field indicates whether or not the Receive STM-1 POH Processor block is declaring the AIS-C
(AIS – Concatenation) defect condition with STM-0/EC-1/STS-1 timeslot #3 (within the incoming STM-1 signal).
The Receive STM-1 POH Processor block will declare the AIS-C defect condition, with STM-0/EC-1/STS-1 time-slot #3;
if it receives an “All Ones” string; in the H1, H2 bytes (associated with STM-0/EC-1/STS-1 timeslot #3) for 3 consecutive
STM-1 frames.
0 – Indicates that the Receive STM-1 POH Processor block is NOT currently declaring the AIS-C defect condition with
STM-0/EC-1/STS-1 time-slot #3.
1 – Indicates that the Receive STM-1 POH Processor block is currently declaring the AIS-C defect condition with STM0/EC-1/STS-1 timeslot #3.
NOTE: This bit-field is only valid if the XRT86SH328 is receiving and processing an STM-1 signal.
BIT 1 - Alarm Indication Signal Concatenation Defect Declaration on STM-0/EC-1/STS-1 Time Slot #2
This READ-ONLY bit-field indicates whether or not the Receive STM-1 POH Processor block is declaring the AIS-C
(AIS – Concatenation) defect condition with STM-0/EC-1/STS-1 timeslot #2 (within the incoming STM-1 signal).
The Receive STM-1 POH Processor block will declare the AIS-C defect condition, with STM-0/EC-1/STS-1 time-slot #2;
if it receives an “All Ones” string; in the H1, H2 bytes (associated with STM-0/EC-1/STS-1 timeslot #2) for 3 consecutive
STM-1 frames.
0 – Indicates that the Receive STM-1 POH Processor block is NOT currently declaring the AIS-C defect condition with
STM-0/EC-1/STS-1 time-slot #2.
1 – Indicates that the Receive STM-1 POH Processor block is currently declaring the AIS-C defect condition with STM0/EC-1/STS-1 timeslot #2.
NOTE: This bit-field is only valid if the XRT86SH328 is receiving and processing an STM-1 signal.
BIT 0 - Unused
TABLE 137: RECEIVE STM-0 PATH - RECEIVE AUTO AIS - C2 BYTE VALUE REGISTER (AISC2VR = 0X02B9)
BIT7
BIT6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
Defect_C2_Byte_Value[7:0]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:0] - Defect_C2_Byte_Value[7:0]
These READ/WRITE bit-fields are used to configure the Receive STM-0 POH Processor block to automatically force
the transmission of the E1 AIS pattern (in the Egress Direction of all 28 channels) anytime it accepts a C2 byte value
matching that written into this register.
NOTE: The chip will only automatically transmit the E1 AIS Pattern if BIT 1 (Defect C2 Byte Downstream AIS Enable),
within the Receive STM-0 Path - Receive Auto AIS - C2 Byte Control Register is set to 1.
182
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 138: RECEIVE STM-0 PATH - RECEIVE AUTO AIS - C2 BYTE CONTROL REGISTER (AISC2CR = 0X02BA)
BIT7
BIT6
BIT 5
BIT 4
BIT 3
BIT 2
Unused
BIT 1
BIT 0
Defect C2
Byte Downstream AIS
Enable
Unused
R/O
R/O
R/O
R/O
R/O
R/O
R/W
R/O
0
0
0
0
0
0
0
0
BIT [7:2] - Unused
BIT 1] - Defect C2 Byte Downstream AIS Enable
This bit enables downstream AIS insertion when the received C2 matches the C2 defect value specified in the
Defect_C2_Value.
0 - Disable
1 - Enable
BIT 0 - Unused
TABLE 139: RECEIVE STM-0 PATH - AUTO AIS CONTROL REGISTER (AUTOACR = 0X02BB)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
Unused
Transmit
AIS-P
(Downstream)
Upon C2
Byte
Unstable
Transmit
AIS-P
(Downstream)
Upon
UNEQ-P
Transmit
AIS-P
(Downstream)
Upon PLM-P
Transmit
AIS-P
(Downstream)
Upon Path
Trace
Message
Unstable
Transmit
AIS-P
(Downstream) upon
TIM-P
Transmit
AIS-P
(Downstream) upon
LOP-P
Transmit
AIS-P
(Downstream)
Enable
R/O
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT 7 - Unused
BIT 6 - Transmit Path AIS (Downstream) upon Declaration of the Unstable C2 Byte Defect Condition
This READ/WRITE bit-field is used to configure the Receive STM-0 POH Processor block to automatically transmit the
Path AIS (AIS-P) Indicator via the downstream traffic (e.g., towards each of the 28 Egress Direction Transmit E1 Framer
blocks), anytime (and for the duration that) it declares the Unstable C2 Byte Defect condition within the incoming STM0 data-stream.
0 - Does not configure the Receive STM-0 POH Processor block to automatically transmit the AIS-P indicator (via the
downstream traffic) whenever it declares the Unstable C2 Byte defect condition.
1 - Configures the Receive STM-0 POH Processor block to automatically transmit the AIS-P indicator (via the
downstream traffic) whenever it declares the Unstable C2 Byte defect condition.
NOTE: The user must also set BIT 0 (Transmit AIS-P Enable) to 1 to configure the Receive STM-0 POH Processor
block to automatically transmit the AIS-P indicator, in response to this defect condition.
BIT 5 - Transmit Path AIS (Downstream) upon Declaration of the UNEQ-P (Path - Unequipped) Defect Condition
This READ/WRITE bit-field is used to configure the Receive STM-0 POH Processor block to automatically transmit the
Path AIS (AIS-P) Indicator via the downstream traffic (e.g., towards each of the 28 Egress Direction Transmit E1 Framer
blocks), anytime (and for the duration that) it declares the UNEQ-P defect condition.
0 - Does not configure the Receive STM-0 POH Processor block to automatically transmit the AIS-P indicator (via the
downstream traffic) whenever it declares the UNEQ-P defect condition.
183
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
1 - Configures the Receive STM-0 POH Processor block to automatically transmit the AIS-P indicator (via the
downstream traffic) whenever it declares the UNEQ-P defect condition.
NOTE: The user must also set BIT 0 (Transmit AIS-P Enable) to 1 to configure the Receive STM-0 POH Processor
block to automatically transmit the AIS-P indicator, in response to this defect condition.
BIT 4 - Transmit Path AIS (Downstream) upon Declaration of the PLM-P (Path - Payload Label Mismatch) Defect
Condition
This READ/WRITE bit-field is used to configure the Receive STM-0 POH Processor block to automatically transmit the
Path AIS (AIS-P) Indicator via the downstream traffic (e.g., towards each of the 28 Egress Direction Transmit E1 Framer
blocks), anytime (and for the duration that) it declares the PLM-P defect condition.
0 - Does not configure the Receive STM-0 POH Processor block to automatically transmit the AIS-P indicator (via the
downstream traffic) whenever it declares the PLM-P defect condition.
1 - Configures the Receive STM-0 POH Processor block to automatically transmit the AIS-P indicator (via the
downstream traffic) whenever it declares the PLM-P defect condition.Note
NOTE: The user must also set BIT 0 (Transmit AIS-P Enable) to 1 to configure the Receive STM-0 POH Processor
block to automatically transmit the AIS-P indicator, in response to this defect condition.
BIT 3 - Transmit Path AIS (Downstream) upon declaration of the Path Trace Message Unstable Defect Condition
This READ/WRITE bit-field is used to configure the Receive STM-0 POH Processor block to automatically transmit the
Path AIS (AIS-P) Indicator via the downstream traffic (e.g., towards each of the 28 Egress Direction Transmit E1 Framer
blocks), anytime (and for the duration that) it declares the Path Trace Message Unstable defect condition within the
incoming STM-0 data-stream.
0 - Does not configure the Receive STM-0 POH Processor block to automatically transmit the AIS-P indicator (via the
downstream traffic) whenever it declares the Path Trace Message Unstable defect condition.
1 - Configures the Receive STM-0 POH Processor block to automatically transmit the AIS-P indicator (via the
downstream traffic) whenever it declares the Path Trace Message Unstable defect condition.
NOTE: The user must also set BIT 0 (Transmit AIS-P Enable) to 1 to configure the Receive STM-0 POH Processor
block to automatically transmit the AIS-P indicator, in response to this defect condition.
BIT 2 - Transmit Path AIS (Downstream) upon declaration of the TIM-P (Path Trace Message Identification
Mismatch) defect condition
This READ/WRITE bit-field is used to configure the Receive STM-0 POH Processor block to automatically transmit a
Path AIS (AIS-P) Indicator via the downstream traffic (e.g., towards each of the 28 Egress Direction Transmit E1 Framer
blocks), anytime (and for the duration that) it declares the TIM-P defect condition within the incoming STM-0 datastream.
0 - Does not configure the Receive STM-0 POH Processor block to transmit the AIS-P indicator (via the downstream
traffic) whenever it declares the TIM-P defect condition.
1 - Configures the Receive STM-0 POH Processor block to transmit the AIS-P indicator (via the downstream traffic)
whenever it declares the TIM-P defect condition.
NOTE: The user must also set BIT 0 (Transmit AIS-P Enable) to 1 to configure the Receive STM-0 POH Processor
block to automatically transmit the AIS-P indicator, in response to this defect condition.
BIT 1 - Transmit Path AIS (Downstream) upon Detection of Loss of Pointer (LOP-P) Defect Condition
This READ/WRITE bit-field is used to configure the Receive STM-0 POH Processor block to automatically transmit the
Path AIS (AIS-P) Indicator via the downstream traffic (e.g., towards each of the 28 Egress Direction Transmit E1 Framer
blocks), anytime (and for the duration that) it declares the LOP-P defect condition within the incoming STM-0 datastream.
0 - Does not configure the Receive STM-0 POH Processor block to automatically transmit the AIS-P indicator (via the
downstream traffic, towards the corresponding Transmit SDH POH Processor block) whenever it declares the LOP-P
defect condition.
1 - Configures the Receive STM-0 POH Processor block to automatically transmit the AIS-P indicator (via the
downstream traffic, towards the corresponding Transmit SDH POH Processor block) whenever it declares the LOP-P
defect condition.
NOTE: The user must also set BIT 0 (Transmit AIS-P Enable) to 1 to configure the Receive STM-0 POH Processor
block to automatically transmit the AIS-P indicator, in response to this defect condition.
BIT 0 - Automatic Transmission of AIS-P Enable
184
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
This READ/WRITE bit-field serves two purposes.
•
It is used to configure the Receive STM-0 POH Processor block to automatically transmit the Path AIS
indicator, via the down-stream traffic (e.g., towards each of the 28 Egress Direction Transmit E1 Framer
blocks), upon detection of an UNEQ-P, PLM-P, LOP-P or LOS conditions.
•
It also is used to configure the Receive STM-0 POH Processor block to automatically transmit a Path (AIS-P)
Indicator via the downstream traffic (e.g., towards each of the 28 Egress Direction Transmit E1 Framer
blocks) anytime it detects an AIS-P condition in the incoming STM-0 data-stream.
0 - Configures the Receive STM-0 POH Processor block to NOT automatically transmit the AIS-P indicator (via the
downstream traffic, towards each of the 28 Egress Direction Transmit E1 Framer blocks) whenever it declares any of
the above-mentioned defect conditions.
1 - Configures the Receive STM-0 POH Processor block to automatically transmit the AIS-P indicator (via the
downstream traffic, towards each of the 28 Egress Direction Transmit E1 Framer blocks) whenever it declares any of
the above-mentioned defect condition.
NOTE: The user must also set the corresponding bit-fields (within this register) to 1 in order to configure the Receive
STM-0 POH Processor block to automatically transmit the AIS-P indicator upon detection of a given alarm/
defect condition.
TABLE 140: RECEIVE STM-0 PATH - SERIAL PORT CONTROL REGISTER (RPSPCR= 0X02BF)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
Unused
BIT 2
BIT 1
BIT 0
RxPOH Clock Speed[3:0]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:4] - Unused
BIT [3:0] - RxPOHClk Output Clock Signal Speed
These READ/WRITE bit-fields are used to specify the frequency of the RxPOHClk output clock signal. The formula that
relates the contents of these register bits to the RxPOHClk frequency is presented below.
FREQ = 51.84 /[2 * (RxPOH_CLOCK_SPEED + 1)
For STS-3/STM-1 applications, the frequency of the RxPOHClk output signal must be in the range of 2.36MHz to
25.92MHz
TABLE 141: RECEIVE STM-0 PATH - SDH RECEIVE AUTO ALARM REGISTER (RAAR = 0X02C3)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
Unused
Transmit AIS
(via
Downstream
T1/E1s)
upon LOP-P
Transmit AIS
(via Downstream T1/
E1s) uponPLM-P
Unused
Transmit AIS
(via Downstream T1/
E1s) upon
UNEQ-P
Transmit AIS
(via Downstream T1/
E1s) upon
TIM-P
Transmit AIS
(via Downstream T1/
E1s) upon
AIS-P
Unused
R/W
R/W
R/W
R/O
R/W
R/W
R/W
R/O
0
0
0
0
0
0
0
0
BIT 7 - Unused
BIT 6 - Transmit E1 AIS (via Downstream T1/E1s) upon declaration of the LOP-P defect condition
This READ/WRITE bit-field is used to configure each of the 28 Egress Direction Transmit E1 Framer blocks to
automatically transmit the E1 AIS Indicator via the downstream E1 signal, anytime (and for the duration that) the
Receive STM-0 POH Processor block declares the LOP-P defect condition.
0 - Does not configure all 28 of the Egress Direction Transmit E1 Framer blocks to automatically transmit the E1 AIS
Indicator via the downstream E1 signal, anytime the Receive STM-0 POH Processor block declares the LOP-P defect.
1 - Configures all 28 of the Egress Direction Transmit E1 Framer blocks to automatically transmit the E1 AIS Indicator
185
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
via the downstream E1 signal, anytime (and for the duration that) the Receive STM-0 POH Processor block declares
the LOP-P defect.
BIT 5 - Transmit E1 AIS (via Downstream T1/E1s) upon declaration of the PLM-P defect condition
This READ/WRITE bit-field is used to configure each of the 28 Egress Direction Transmit E1 Framer blocks to
automatically transmit the E1 AIS Indicator via the downstream E1 signal, anytime (and for the duration that) the
Receive STM-0 POH Processor block declares the PLM-P defect condition.
0 - Does not configure all 28 of the Egress Direction Transmit E1 Framer blocks to automatically transmit the E1 AIS
Indicator via the downstream E1 signals, anytime the Receive STM-0 POH Processor block declares the PLM-P defect
condition.
1 - Configures all 28 of the Egress Direction Transmit E1 Framer blocks to automatically transmit the E1 AIS Indicator
via the downstream E1 signals, anytime (and for the duration that) the Receive STM-0 POH Processor block declares
the PLM-P defect condition.
BIT 4 - Unused
BIT 3 - Transmit E1 AIS (via Downstream T1/E1s) upon declaration of the UNEQ-P defect condition
This READ/WRITE bit-field is used to configure each of the 28 Egress Direction Transmit E1 Framer blocks to
automatically transmit the E1 AIS Indicator via the downstream E1 signals, anytime (and for the duration that) the
Receive STM-0 POH Processor block declares the UNEQ-P defect condition.
0 - Does not configure all 28 of the Egress Direction Transmit E1 Framer blocks to automatically transmit the E1 AIS
Indicator via the downstream E1 signals, anytime the Receive STM-0 POH Processor block declares the UNEQ-P
defect condition.
1 - Configures all 28 of the Egress Direction Transmit E1 Framer blocks to automatically transmit the E1 AIS Indicator
via the downstream E1 signals, anytime (and for the duration that) the Receive STM-0 POH Processor block declares
the UNEQ-P defect condition.
BIT 2 - Transmit E1 AIS (via Downstream T1/E1s) upon declaration of the TIM-P defect condition
This READ/WRITE bit-field is used to configure each of the 28 Egress Direction Transmit E1 Framer blocks to
automatically transmit the E1 AIS Indicator via the downstream E1 signals, anytime (and for the duration that) the
Receive STM-0 POH Processor block declares the TIM-P defect condition.
0 - Does not configure all 28 of the Egress Direction Transmit E1 Framer blocks to automatically transmit the E1 AIS
Indicator via the downstream E1 signals, anytime the Receive STM-0 POH Processor block declares the TIM-P defect
condition.
1 - Configures all 28 of the Egress Direction Transmit E1 Framer blocks to automatically transmit the E1 AIS Indicator
via the downstream E1 signals, anytime (and for the duration that) the Receive STM-0 POH Processor block declares
the TIM-P defect condition.
BIT 1 - Transmit E1 AIS (via Downstream T1/E1s) upon AIS-P
This READ/WRITE bit-field is used to configure each of the 28 Egress Direction Transmit E1 Framer blocks to
automatically transmit the E1 AIS Indicator via the downstream E1 signals, anytime (and for the duration that) the
Receive STM-0 POH Processor block declares the AIS-P defect condition.
0 - Does not configure all 28 of the Egress Direction Transmit E1 Framer blocks to automatically transmit the E1 AIS
Indicator via the downstream E1 signal, anytime the Receive STM-0 POH Processor block declares the AIS-P defect
condition.
1 - Configures all 28 of the Egress Direction Transmit E1 Framer blocks to automatically transmit the AIS-P Indicator
via the downstream E1 signals, anytime (and for the duration that) the Receive STM-0 POH Processor block declares
the AIS-P defect condition.
BIT 0 - Unused
186
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 142: RECEIVE STM-0 PATH - RECEIVE NEGATIVE POINTER ADJUSTMENT COUNT REGISTER 1 (RNPACR1 =
0X02C4)
BIT7
BIT6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
Receive Negative Pointer Adjustment Count[15:8]
RUR
RUR
RUR
RUR
RUR
RUR
RUR
RUR
0
0
0
0
0
0
0
0
BIT [7:0] - Receive Negative Pointer Adjustment Count - MSB
These RESET-upon-READ bits, along with that in Receive STM-0 Path - Receive Negative Pointer Adjustment Count
Register - Byte 0 present a 16-bit representation of the number of Negative (or Decrementing) Pointer Adjustments that
the Receive STM-0 POH Processor block has detected since the last read of these registers.
NOTE: This register contains the MSB (Most Significant Bits) of this 16-bit expression.
TABLE 143: RECEIVE STM-0 PATH - RECEIVE NEGATIVE POINTER ADJUSTMENT COUNT REGISTER 0 (RNPACR0 =
0X02C5)
BIT7
BIT6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
Receive Negative Pointer Adjustment Count[7:0]
RUR
RUR
RUR
RUR
RUR
RUR
RUR
RUR
0
0
0
0
0
0
0
0
BIT [7:0] - Receive Negative Pointer Adjustment Count - LSB
These RESET-upon-READ bits, along with that in Receive STM-0 Path - Receive Negative Pointer Adjustment Count
Register - Byte 1 present a 16-bit representation of the number of Negative (or Decrementing) Pointer Adjustments that
the Receive STM-0 POH Processor block has detected since the last read of these registers.
NOTE: This register contains the LSB (Least Significant Bits) of this 16-bit expression.
187
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
TABLE 144: RECEIVE STM-0 PATH - RECEIVE POSITIVE POINTER ADJUSTMENT COUNT REGISTER 1 (RPPACR1 =
0X02C6)
BIT7
BIT6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
Receive Positive Pointer Adjustment Count[15:8]
RUR
RUR
RUR
RUR
RUR
RUR
RUR
RUR
0
0
0
0
0
0
0
0
BIT [7:0] - Receive Positive Pointer Adjustment Count - MSB
These RESET-upon-READ bits, along with that in Receive STM-0 Path - Receive Positive Pointer Adjustment Count
Register - Byte 0 present a 16-bit representation of the number of Positive (or Incrementing) Pointer Adjustments that
the Receive STM-0 POH Processor block has detected since the last read of these registers.
NOTE: This register contains the MSB (Most Significant Bits) of this 16-bit expression.
TABLE 145: RECEIVE STM-0 PATH - RECEIVE POSITIVE POINTER ADJUSTMENT COUNT REGISTER 0 (RPPACR0 =
0X02C7)
BIT7
BIT6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
Receive Positive Pointer Adjustment Count[7:0]
RUR
RUR
RUR
RUR
RUR
RUR
RUR
RUR
0
0
0
0
0
0
0
0
BIT [7:0] - Receive Positive Pointer Adjustment Count - LSB
These RESET-upon-READ bits, along with that in Receive STM-0 Path - Receive Positive Pointer Adjustment Count
Register - Byte 1 present a 16-bit representation of the number of Positive (or Incrementing) Pointer Adjustments that
the Receive STM-0 POH Processor block has detected since the last read of these registers.
NOTE:
This register contains the LSB (Least Significant Bits) of this 16-bit expression.
TABLE 146: RECEIVE STM-0 PATH - RECEIVE J1 BYTE CAPTURE REGISTER (RJ1BCR = 0X02D3)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
J1_Byte_Captured_Value[7:0]
R/O
R/O
R/O
R/O
R/O
R/O
R/O
R/O
0
0
0
0
0
0
0
0
BIT [7:0] - J1 Byte Captured Value[7:0]
These READ-ONLY bit-fields contain the value of the J1 byte, within the most recently received STM-0 frame. This
particular value is stored in this register for one STM-0 frame period. During the next STM-0 frame period, this value
will be overridden with a new J1 byte value.
188
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 147: RECEIVE STM-0 PATH - RECEIVE B3 BYTE CAPTURE REGISTER (RB3BCR = 0X02D7)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
B3_Byte_Captured_Value[7:0]
R/O
R/O
R/O
R/O
R/O
R/O
R/O
R/O
0
0
0
0
0
0
0
0
BIT [7:0] - B3 Byte Captured Value[7:0]
These READ-ONLY bit-fields contain the value of the B3 byte, within the most recently received STM-0 frame. This
particular value is stored in this register for one STM-0 frame period. During the next STM-0 frame period, this value
will be overridden with a new B3 byte value.
TABLE 148: RECEIVE STM-0 PATH - RECEIVE C2 BYTE CAPTURE REGISTER (RC2BCR = 0X02DB)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
C2_Byte_Captured_Value[7:0]
R/O
R/O
R/O
R/O
R/O
R/O
R/O
R/O
0
0
0
0
0
0
0
0
BIT [7:0] - C2 Byte Captured Value[7:0]
These READ-ONLY bit-fields contain the value of the C2 byte, within the most recently received STM-0 frame. This
particular value is stored in this register for one STM-0 frame period. During the next STM-0 frame period, this value
will be overridden with a new C2 byte value.
TABLE 149: RECEIVE STM-0 PATH - RECEIVE G1 BYTE CAPTURE REGISTER (RG1BCR = 0X02DF)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
G1_Byte_Captured_Value[7:0]
R/O
R/O
R/O
R/O
R/O
R/O
R/O
R/O
0
0
0
0
0
0
0
0
BIT [7:0] - G1 Byte Captured Value[7:0]
These READ-ONLY bit-fields contain the value of the G1 byte, within the most recently received STM-0 frame. This
particular value is stored in this register for one STM-0 frame period. During the next STM-0 frame period, this value
will be overridden with a new G1 byte value.
TABLE 150: RECEIVE STM-0 PATH - RECEIVE F2 BYTE CAPTURE REGISTER (RF2BCR = 0X02E3)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
F2_Byte_Captured_Value[7:0]
R/O
R/O
R/O
R/O
R/O
R/O
R/O
R/O
0
0
0
0
0
0
0
0
BIT [7:0] - F2 Byte Captured Value[7:0]
These READ-ONLY bit-fields contain the value of the F2 byte, within the most recently received STM-0 frame. This
particular value is stored in this register for one STM-0 frame period. During the next STM-0 frame period, this value
will be overridden with a new F2 byte value.
189
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
TABLE 151: RECEIVE STM-0 PATH - RECEIVE H4 BYTE CAPTURE REGISTER (RH4BCR = 0X02E7)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
H4_Byte_Captured_Value[7:0]
R/O
R/O
R/O
R/O
R/O
R/O
R/O
R/O
0
0
0
0
0
0
0
0
BIT [7:0] - H4 Byte Captured Value[7:0]
These READ-ONLY bit-fields contain the value of the H4 byte, within the most recently received STM-0 frame. This
particular value is stored in this register for one STM-0 frame period. During the next STM-0 frame period, this value
will be overridden with a new H4 byte value.
TABLE 152: RECEIVE STM-0 PATH - RECEIVE Z3 BYTE CAPTURE REGISTER (RZ3BCR = 0X02EB)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
Z3_Byte_Captured_Value[7:0]
R/O
R/O
R/O
R/O
R/O
R/O
R/O
R/O
0
0
0
0
0
0
0
0
BIT [7:0] - Z3 Byte Captured Value[7:0]
These READ-ONLY bit-fields contain the value of the Z3 byte, within the most recently received STM-0 frame. This
particular value is stored in this register for one STM-0 frame period. During the next STM-0 frame period, this value
will be overridden with a new Z3 byte value.
TABLE 153: RECEIVE STM-0 PATH - RECEIVE Z4 (K3) BYTE CAPTURE REGISTER (RZ4BCR = 0X02EF)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
Z4(K3)_Byte_Captured_Value[7:0]
R/O
R/O
R/O
R/O
R/O
R/O
R/O
R/O
0
0
0
0
0
0
0
0
BIT [7:0] - Z4 (K3) Byte Captured Value[7:0]
These READ-ONLY bit-fields contain the value of the Z4 (K3) byte, within the most recently received STM-0 frame. This
particular value is stored in this register for one STM-0 frame period. During the next STM-0 frame period, this value
will be overridden with a new Z4 (K3) byte value.
TABLE 154: RECEIVE STM-0 PATH - RECEIVE Z5 BYTE CAPTURE REGISTER (RZ5BCR = 0X02F3)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
Z5_Byte_Captured_Value[7:0]
R/O
R/O
R/O
R/O
R/O
R/O
R/O
R/O
0
0
0
0
0
0
0
0
BIT [7:0] - Z5 Byte Captured Value[7:0]
These READ-ONLY bit-fields contain the value of the Z5 byte, within the most recently received STM-0 frame.
This particular value is stored in this register for one STM-0 frame period. During the next STM-0 frame period, this
value will be overridden with a new Z5 byte value.
190
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
6.6
REV. 1.0.1
Transmit Transport Overhead Port Control Register Descriptions
TABLE 155: TRANSMIT STM-0 SECTION CONTROL REGISTER 3 (TSCR3 0X0700H)
BIT7
BIT6
BIT5
BIT4
BIT3
Reserved
BIT2
BIT1
BIT0
CNTL_PTR[3:0]
RO
RO
RO
RO
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:4] - Reserved
BIT [3:0] - Control Pointer [3:0]
This pointer value is used to select the slot in current TxSOH group (up to 3) to be programmed.
0000 - Slot 0
0001 - Slot 1
0010 - Slot 2
0011 - 1111 - Not Used
TABLE 156: TRANSMIT STM-0 SECTION CONTROL REGISTER 2 (TSCR2 0X0701H)
BIT7
BIT6
BIT5
BIT4
BIT3
Reserved
BIT2
BIT1
BIT0
AUTO
MS-AIS_En
RSDCC
Relocate
MSDCC
Relocate
RO
RO
RO
RO
RO
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:3] - Reserved
BIT 2 - Multiplex Section AUTO AIS Alarm Enable
When enabled, the MS-AIS will be automatically inserted upon receiving MS-AIS alarm from upstream.
0 - Disabled
1 - AUTO MS-AIS Enabled
BIT 1 - Regenerator Section Data Communication Channel Relocate
SOH passthrough must be enabled for this bit to have function. The first channel upstream RSDCC (D1,D2,D3) will be
mapped to RSDCC location of the second slot of this channel. For example, the RSDCC of a STM1 AU4 input stream
for slot 0 will be inserted into slot 4 which is the second slot of this STM1. The RSDCC for slot 0 will be inserted internally
either through external interface or internal register.
0 - Disabled
1 - Relocate RSDCC (D1,D2,D3)
BIT 0 - Multiplex Section Data Communication Channel Relocate
SOH passthrough must be enabled for this bit to have function. The first channel upstream MSDCC (D4-D12) will be
mapped to MSDCC location of the second slot of this channel. For example, the MSDCC of a STM1 AU4 input stream
for slot 0 will be inserted into slot 4 which is the second slot of this STM1. The MSDCC for slot 0 will be inserted internally
either through external interface or internal register.
0 - Disabled
1 - Relocate MSDCC (D4-D12)
191
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
TABLE 157: TRANSMIT STM-0 SECTION CONTROL REGISTER 1 (TSCR1 0X0702H)
BIT7
BIT6
BIT5
BIT4
BIT3
BIT2
BIT1
BIT0
Reserved
STM-N
Overhead
Insert
E2 Insert
Method
E1 Insert
Method
F1 Insert
Method
S1 Insert
Method
K1K2 Insert
Method
M0M1 Insert
Method [1]
RO
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT 7 - Reserved
BIT 6 - STM-N Overhead Insert
This READ/WRITE bit-field permits the user to configure the TxSOH input port to insert the SOH for the outbound STM0 or STM-1 signal.
0 - Disabled
1 - Enabled
BIT 5 - E2 Byte Insert Method
This READ/WRITE bit-field is used to specify the source of the contents of the E2 byte, within the transmit output STM0 or STM-1 data stream.
0 - E2 Byte is obtained from TxSOH Serial Input Port.
1 - E2 Byte is obtained from the contents within the Transmit Section - E2 Byte Value register (Address Location =
0x0747). This selection provides the user with software control over the value of the outbound E2 byte.
BIT 4 - E1 Byte Insert Method
This READ/WRITE bit-field is used to specify the source of the contents of the E1 byte, within the transmit output STM0 or STM-1 data stream.
0 - E1 Byte is obtained from TxSOH Serial Input Port.
1 - E1 Byte is obtained from the contents within the Transmit Section - E1 Byte Value register (Address Location=
0x0743). This selection provides the user with software control over the value of the outbound E1 byte.
BIT 3 - F1 Byte Insert Method
This READ/WRITE bit-field is used to specify the source of the contents of the F1 byte, within the transmit output STM0 data stream.
0 - F1 Byte is obtained from TxSOH Serial Input Port.
1 - F1 Byte is obtained from the contents within the Transmit Section - F1 Byte Value register (Address Location=
0x073F). This selection provides the user with software control over the value of the outbound F1 byte.
BIT 2 - S1 Byte Insert Method
This READ/WRITE bit-field is used to specify the source of the contents of the S1 byte, within the transmit output STM0 data stream.
0 - S1 Byte is obtained from TxSOH Serial Input Port.
1 - S1 Byte is obtained from the contents within the Transmit Section - S1 Byte Value register (Address Location=
0x073B). This selection provides the user with software control over the value of the outbound S1 byte.
BIT 1 - K1K2 Byte Insert Method
This READ/WRITE bit-field is used to specify the source of the contents of the K1 and K2 bytes, within the transmit
output STM-0 data stream.
0 - K1 and K2 Bytes are obtained from TxSOH Serial Input Port.
1 - K1 and K2 Bytes are obtained from the contents within the Transmit Section - K2 Byte Value register - Byte 1
(Address Location= 0x072E) and the Transmit Section - K1 Byte Value register - Byte 0 (Address Location= 0x072F).
This selection provides the user with software control over the value of the outbound K1 and K2 bytes.
192
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
BIT 0 - M0M1 Byte Insert Method [1]
This READ/WRITE bit-field, along with M0M1 Insert Method[0] (located in the next Register 0x0703h) are used to
specify the source of the contents of the M0/M1 byte, within the transmit output STM-0 data stream. The relationship
between these two bit-fields and the corresponding source of the M0/M1 byte is presented below.
TABLE 158: SOURCE OF M0/M1 BYTE
M0M1 INSERT
METHOD [1:0]
SOURCE OF M0/M1 BYTE
0
0
From the Receive STM-0 SOH Processor Block (B2 Byte Error Count).
0
1
Obtained from the contents of the Transmit STM-0 Section - M0/M1 Byte Value register
(Address Location = 0x0737).
1
0
M0/M1 Byte is obtained from the TxSOH Serial Input Port.
1
1
From the Receive STM-0 SOH Processor Block (B2 Byte Error Count).
193
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 159: TRANSMIT STM-0 SECTION CONTROL REGISTER 0 (TSCR0 0X0703H)
BIT7
BIT6
BIT5
BIT4
BIT3
BIT2
BIT1
BIT0
M0M1 Insert
Method [0]
UDFN SOH
Value
Force
MS-RDI
Force
MS-AIS
Force
LOS Pattern
Scramble
Enable
B2 Byte
Error Insert
A1A2 Byte
Error Insert
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT 7 - M0M1 Byte Insert Method [0]
This READ/WRITE bit-field, along with M0M1 Insert Method[1] (located in the Transmit Section - SDH Control Register
- Byte 1) are used to specify the source of the contents of the M0/M1 byte, within the transmit output STM-0 data stream.
The relationship between these two bit-fields and the corresponding source of the M0/M1 byte is presented below.
Source of M0/M1 Byte
M0M1 INSERT
METHOD [1:0]
SOURCE OF M0/M1 BYTE
0
0
From the Receive STM-0 SOH Processor Block (B2 Byte Error Count).
0
1
Obtained from the contents of the Transmit STM-0 Section - M0/M1 Byte Value register
(Address Location = 0x0737).
1
0
M0/M1 Byte is obtained from the TxSOH Serial Input Port.
1
1
From the Receive STM-0 SOH Processor Block (B2 Byte Error Count).
BIT 6 - Undefined Section Overhead Byte Value Assignment
This READ/WRITE bit-field specifies the value assigned to the undefined Section Overhead Bytes.
0 - Undefined Section Overhead Bytes will be assigned the value 0x00.
1 - Undefined Section Overhead Bytes will be assigned the value 0xFF.
BIT 5 - Force Multiplex Section - Remote Defect Indicator
This READ/WRITE bit-field is used to (by software control) force the Transmit STM-0 SOH Processor Block to generate
and transmit the MS-RDI indicator to the remote terminal equipment by forcing bits-2, 1, and 0 of the K2 byte to the
value 3’b110.
0 - Normal Operation.
1 - Force MS-RDI.
NOTE: This bit-field is ignored if the Transmit STM-0 SOH Processor Block is currently transmitting the Mutiplex
Section AIS (MS-AIS) indicator or LOS pattern.
BIT 4 - Force Multiplex Section - Alarm Indication Signal
This READ/WRITE bit-field is used to (by software control) force the Transmit STM-0 SOH Processor Block to generate
and transmit the MS-AIS indicator to the remote terminal equipment.
0 - Normal Operation.
1 - Force MS-AIS.
NOTE: This bit-field is ignored if the Transmit STM-0 SOH Processor Block is transmitting the LOS pattern.
BIT 3 - Force LOS Pattern
This READ/WRITE bit-field is used to (by software control) force the Transmit STM-0 SOH Processor Block to transmit
the LOS (Loss of Signal) pattern to the remote terminal equipment.
0 - Normal Operation.
1 - Configures the Transmit STM-0 SOH Processor Block to transmit the LOS pattern. In this case, the Transmit STM0 SOH Processor Block will force all bytes (within the outbound SDH frame) to an All Zeros pattern.
194
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
BIT 2 - Scramble Enable
This READ/WRITE bit-field is used to either enable or disable the Scrambler, within the Transmit STM-0 SOH Processor
Block circuitry.
0 - Enables the Scrambler.
1 - Disables the Scrambler.
BIT 1 - B2 Byte Error Insert Enable
This READ/WRITE bit-field is used to configure the Transmit STM-0 SOH Processor Block to insert errors into the
outbound B2 bytes, per the contents within the Transmit STM-0 Section - Transmit B2 Byte Error Mask Register.
0 - Normal Operation.
1 - Configures the Transmit STM-0 SOH Processor Block to insert into the B2 bytes (per the contents within the
Transmit B2 Byte Error Mask Register).
BIT 0 - A1A2 Byte Error Insert Enable
This READ/WRITE bit-field is used to configure the Transmit STM-0 SOH Processor Block to insert errors into the
outbound A1 and A2 bytes, within the outbound STM-0 or STM-1 data-stream.
0 - Normal Operation.
1 - Configures the Transmit STM-0 SOH Processor Block to insert errors into the A1 and A2 bytes (per the contents
within the “Transmit A1 Byte Error Mask” and “Transmit A2 Byte Error Mask” Registers.
195
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
TABLE 160: TRANSMIT STM-0 SECTION A1 BYTE ERROR MASK (TSA1EM 0X0717H)
BIT7
BIT6
BIT5
BIT4
BIT3
BIT2
BIT1
Reserved
BIT0
STM-0
Channel 0
A1 Byte
Error Enable
RO
RO
RO
RO
RO
RO
RO
R/W
0
0
0
0
0
0
0
0
BIT [7:1] - Reserved
BIT 0 - STM-0 Channel 0 - A1 Byte Error Enable
This READ/WRITE bit-field is used to configure the Transmit STM-0 SOH Processor Block to transmit a continuous
stream of STM-0 frames, in which the A1 byte is erred by inverting the A1 byte to the value 0x09.
0 - Normal Operation
1 - Configures the Transmit STM-0 SOH Processor Block to transmit STM-0 frames with erred A1 bytes.
NOTE: This bit-field is only valid if Bit-0 (A1A2 Byte Error Insert), within the “Transmit STM-0 Section – SDH Transmit
Control Register – Byte 0 (Address Location= 0x0703) is set to “1”.
TABLE 161: TRANSMIT STM-0 SECTION A2 BYTE ERROR MASK (TSA2EM 0X071FH)
BIT7
BIT6
BIT5
BIT4
BIT3
BIT2
BIT1
Reserved
BIT0
STM-0
Channel 0
A2 Byte
Error Enable
RO
RO
RO
RO
RO
RO
RO
R/W
0
0
0
0
0
0
0
0
BIT [7:1] - Reserved
BIT 0 - STM-0 Channel 0 - A2 Byte Error Enable
This READ/WRITE bit-field is used to configure the Transmit STM-0 SOH Processor Block to transmit a continuous
stream of STM-0 frames, in which the A2 byte is erred by inverting the A2 byte to the value 0xD7.
0 - Normal Operation
1 - Configures the Transmit STM-0 SOH Processor Block to transmit STM-0 frames with erred A2 bytes.
NOTE: This bit-field is only valid if Bit-0 (A1A2 Byte Error Insert), within the “Transmit STM-0 Section – SDH Transmit
Control Register – Byte 0 (Address Location= 0x0703) is set to “1”.
196
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 162: TRANSMIT STM-0 SECTION B1 BYTE ERROR MASK (TSB1EM 0X0723H)
BIT7
BIT6
BIT5
BIT4
BIT3
BIT2
BIT1
BIT0
Transmit B1 Byte Error Mask [7:0]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:0] - B1 Byte Error Mask [7:0]
These READ/WRITE bit-fields are used to insert bit errors into the B1 bytes, within the outbound STM-0 data stream.
The Transmit STM-0 SOH Processor Block will perform an XOR operation with the contents of the B1 byte, and this
register. The results of this calculation will be inserted into the B1 byte position within the outbound STM-0 data stream.
For each bit-field (within this register) that is set to 1, the corresponding bit, within the B1 byte will be in error.
NOTE: For normal operation, the user should set this register to 0x00.
TABLE 163: TRANSMIT STM-0 SECTION B2 BYTE SELECT ERROR ENABLE (TSB2SEE 0X0727H)
BIT7
BIT6
BIT5
BIT4
BIT3
BIT2
BIT1
BIT0
STM-0
Channel 0
B2 Byte
Error Enable
RO
RO
RO
RO
RO
RO
RO
R/W
0
0
0
0
0
0
0
0
BIT [7:1] - Reserved
BIT 0 - STM-0 Channel 0 - B2 Byte Error Enable
This READ/WRITE bit-field is used to configure the Transmit STM-0 SOH Processor Block to perform the XOR
operation with the contents of the Transmit STM-0 Section -Transmit B2 Bit Error Mask Register (Address Location =
0x072B)
0 - Normal Operation
1 - Enables the XOR operation. In this setting, the Transmit STM-0 SOH Processor will perform the XOR operation
of the value of the B2 byte (within the outbound STM-0 frame) with the contents within the Transmit STM-0 Section Transmit B2 Bit Error Mask register.
NOTE: This bit-field is only valid if BIT 1 (B2 Byte Error Insert), within the “Transmit STM-0 Section – SDH Transmit
Control Register – Byte 0 (Address = 0x0703) set to “1”.
197
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 164: TRANSMIT STM-0 SECTION B2 BYTE ERROR MASK (TSB2EM 0X072BH)
BIT7
BIT6
BIT5
BIT4
BIT3
BIT2
BIT1
BIT0
Transmit B2 Byte Error Mask [7:0]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:0] - Transmit B2 Byte Error Mask [7:0]
These READ/WRITE bit-fields are used to insert B2 byte errors into the outbound STM-0 data-stream, for diagnostic
purposes.
For the selected STM-0 channel (Transmit B2 Byte Select Error Enable) within the Transmit STM-0 Section - Transmit
B2 Byte Error Register (Address Location = 0x0727) that is set to 1, then Transmit STM-0 SOH Processor Block will be
configured to perform an XOR operation between the contents of this register, with the contents of the selected STM-0
channel outbound B2 byte. The results of this calculation is written back into the B2 byte position, within the outbound
STM-0 frame. Hence, for every bit (within this register) that is set to 1, the corresponding bit (within the outbound B2
byte) will be erred.
NOTES:
1.
For normal (e.g., un-erred) operation, the user should ensure that this register is set to the value 0x00.
2. These register bits are ignored unless an STM-0 channel is selected (Transmit B2 Byte Select Error
Enable), within the Transmit STM-0 Section - Transmit B2 Byte Error Register has been set to "1".
3. This bit-field is only valid if BIT 1 (B2 Byte Error Insert), within the “Transmit STM-0 Section – SDH
Transmit Control Register – Byte 0 (Address = 0x0703) set to “1”.
198
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 165: TRANSMIT STM-0 SECTION K2 BYTE VALUE REGISTER (TSK2VR 0X072EH)
BIT7
BIT6
BIT5
BIT4
BIT3
BIT2
BIT1
BIT0
Transmit K2 Byte Value [7:0]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:0] - Transmit K2 Byte Value
If the appropriate K1K2 Insert Method is selected, then these READ/WRITE bit-fields are used to specify the contents
of the K2 byte, within the outbound STM-0 signal.
NOTE: If BIT 1 (K1K2 Insert Method) within the Transmit STM-0 Section - SDH Transmit Control Register - Byte 1
(Address Location= 0x0702) is set to 1, then the Transmit STM-0 SOH Processor Block will load the contents of
this register into the K2 byte-field, within each outbound STM-0 frame. These register bits are ignored if BIT 1
(K1K2 Insert Method) is set to 0.
TABLE 166: TRANSMIT STM-0 SECTION K1 BYTE VALUE REGISTER (TSK1VR 0X072FH)
BIT7
BIT6
BIT5
BIT4
BIT3
BIT2
BIT1
BIT0
Transmit K1 Byte Value [7:0]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:0] - Transmit K1 Byte Value
If the appropriate K1K2 Insert Method is selected, then these READ/WRITE bit-fields are used to specify the contents
of the K1 byte, within the outbound STM-0 signal.
If BIT 1 (K1K2 Insert Method) within the Transmit STM-0 Section - SDH Transmit Control Register - Byte 1 (Address
Location= 0x0702) is set to 1, then the Transmit STM-0 SOH Processor Block will load the contents of this register into the
K1 byte-field, within each outbound STM-0 frame. These register bits are ignored if BIT 1 (K1K2 Insert Method) is set to 0.
199
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
TABLE 167: TRANSMIT STM-0 SECTION MS-RDI CONTROL REGISTER (TSMSRDICR 0X0733H)
BIT7
BIT6
BIT5
BIT4
Reserved
BIT3
BIT2
BIT1
BIT0
External
MS-RDI
Enable
Transmit
MS-RDI
upon
MS-AIS
Transmit
MS-RDI
upon
LOF
Transmit
MS-RDI
upon
LOS
RO
RO
RO
RO
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:4] - Reserved
BIT 3 - External Multiplex Section Remote Defect Indicator Enable
This READ/WRITE bit-field is used to externally insert the value for bits 6, 7 and 8 (of the K2 byte) into the outbound
STM-0 data stream. If the user enables this feature, then the user can enable or disable the insertion of the MS-RDI
indicator, via the TxSOH_n input pin.
0 - Disables this feature.
1 - Enables this feature.
BIT 2 - Transmit Multiplex Section Remote Defect Indicator (MS-RDI) upon Detection of MS-AIS
This READ/WRITE bit-field is used to configure the Transmit STM-0 SOH Processor Block to automatically transmit an
MS-RDI indicator to the remote terminal anytime (and for the duration) that the Receive STM-0 SOH Processor Block
is detecting an Multiplex Section AIS (MS-AIS) indicator.
0 - Disables this feature.
1 - Configures the Transmit STM-0 SOH Processor Block to automatically transmit the MS-RDI indicator, upon the
Receive STM-0 SOH Processor Block detecting the MS-AIS indicator.
BIT 1 - Transmit Multiplex Section Remote Defect Indicator (MS-RDI) upon Detection of LOF
This READ/WRITE bit-field is used to configure the Transmit STM-0 SOH Processor Block to automatically transmit an
MS-RDI indicator to the remote terminal anytime (and for the duration) that the Receive STM-0 SOH Processor Block
is declaring the LOF defect.
0 - Disables this feature.
1 -Configures the Transmit STM-0 SOH Processor Block to automatically transmit the MS-RDI indicator, whenever
the Receive STM-0 SOH Processor Block declares the LOF defect.
BIT 0 - Transmit Multiplex Section Remote Defect Indicator (MS-RDI) upon Detection of LOS
This READ/WRITE bit-field is used to configure the Transmit STM-0 SOH Processor Block to automatically transmit an
MS-RDI indicator to the remote terminal anytime (and for the duration) that the Receive STM-0 SOH Processor Block
is declaring the LOS defect.
0 - Disables this feature.
1 -Configures the Transmit STM-0 SOH Processor Block to automatically transmit the MS-RDI indicator, whenever
the Receive STM-0 SOH Processor Block declares the LOS defect.
200
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 168: TRANSMIT STM-0 SECTION M0M1 BYTE VALUE REGISTER (TSM0M1VR 0X0737H)
BIT7
BIT6
BIT5
BIT4
BIT3
BIT2
BIT1
BIT0
M0M1 Byte Value [7:0]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:0] - Transmit M0M1 Byte Value
If the appropriate M0M1 Insert Method is selected, then these READ/WRITE bit-fields are used to specify the contents
of the M0M1 byte, within the outbound STM-0 signal.
NOTE: If Bit-0 (M0M1 Insert Method - BIT 1) within the Transmit STM-0 Section - SDH Transmit Control Register - Byte
1 (Address Location= 0x0702) and Bit-7 (M0M1 Byte Insert Method - BIT 0) within the Transmit STM-0 Section
- SDH Transmit Control Register - Byte 0 (Address Location= 0x0703) are set to 0, 1, then the STM-0 Transmit
Block will load the contents of this register into the M0M1 byte-field, within each outbound STM-0 frame. These
register bits are ignored if the M0M1 Insert Method[1:0] bits are set to any value other than 0, 1.
TABLE 169: TRANSMIT STM-0 SECTION - S1 BYTE VALUE REGISTER (TSS1VR 0X073B)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
Transmit S1 Byte Value[7:0]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:0] - Transmit S1 Byte Value
If the appropriate S1 Insert Method is selected, then these READ/WRITE bit-fields are used to specify the contents of
the S1 byte, within the outbound STM-0 signal. If BIT 2 (S1 Insert Method) within the Transmit STM-0 Section - SDH
Transmit Control Register - Byte 1 (Address Location= 0x0702) is set to 1, then the STM-0 Transmit Block will load the
contents of this register into the S1 byte-field, within each outbound STM-0 frame.
NOTE: These register bits are ignored if BIT 2 (S1 Insert Method) is set to 0.
TABLE 170: TRANSMIT STM-0 SECTION - F1 BYTE VALUE REGISTER (TSF1VR 0X073F)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
Transmit F1 Byte Value[7:0]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:0] - Transmit F1 Byte Value
If the appropriate F1 Byte Insert Method is selected, then these READ/WRITE bit-fields are used to specify the contents
of the F1 byte, within the outbound STM-0 signal.
NOTE: If BIT 3 (F1 Byte Insert Method) within the Transmit STM-0 Section - SDH Transmit Control Register - Byte 1
(Address Location= 0x0702) is set to 1, then the Transmit STM-0 SOH Processor Block will load the contents of
this register into the F1 byte-field, within each outbound STM-0 frame. These register bits are ignored if BIT 3
(F1 Insert Method) is set to 0.
201
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
TABLE 171: TRANSMIT STM-0 SECTION - E1 BYTE VALUE REGISTER (TSE1VR 0X0743)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
Transmit E1 Byte Value[7:0]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:0] - Transmit E1 Byte Value
If the appropriate E1 Byte Insert Method is selected, then these READ/WRITE bit-fields are used to specify the contents
of the E1 byte, within the outbound STM-0 signal. Note
NOTE: If BIT 4 (E1 Insert Method) within the Transmit STM-0 Section - SDH Transmit Control Register - Byte 1
(Address Location= 0x0702) is set to 1, then the Transmit STM-0 SOH Processor Block will load the contents of
this register into the E1 byte-field, within each outbound STM-0 frame. These register bits are ignored if BIT 4
(E1 Insert Method) is set to 0.
TABLE 172: TRANSMIT STM-0 SECTION - E2 BYTE VALUE REGISTER (TSE2VR 0X0747)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
Transmit E2 Byte Value[7:0]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:0] - Transmit E2 Byte Value
If the appropriate E2 Byte Insert Method is selected, then these READ/WRITE bit-fields are used to specify the contents
of the E2 byte, within the outbound STM-0 signal.
NOTE: If BIT 5 (E2 Insert Method) within the Transmit STM-0 Section - SDH Transmit Control Register - Byte 1
(Address Location= 0x0702) is set to 1, then the Transmit STM-0 SOH Processor Block will load the contents of
this register into the E2 byte-field, within each outbound STM-0 frame. These register bits are ignored if BIT 5
(E2 Insert Method) is set to 0.
TABLE 173: TRANSMIT STM-0 SECTION - J0 BYTE VALUE REGISTER (TSJ0VR 0X074B)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
Transmit J0 Byte Value[7:0]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:0] - Transmit J0 Byte Value
These READ/WRITE bits are used to specify the value of the J0 byte, that will be transmitted via the Transport
Overhead, within the very next STM-0 Frame. This register is only valid if the Transmit STM-0 SOH Processor Block is
configured to read out the contents from this register and insert it into the J0 byte-field within each outbound STM-0
frame. The user accomplishes this by setting Bits 1 and 0 (J0_TYPE), within the Transmit STM-0 Section - J0 Byte
Control Register (Address Location= 0x074F) to 1, 0.
202
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 174: TRANSMIT STM-0 SECTION - TRANSMITTER J0 BYTE CONTROL REGISTER (TSJ0CR 0X074F)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
Unused
BIT 2
Transmit Section Trace
Message Length[1:0]
BIT 1
BIT 0
Transmit J0 Byte
Insertion Method[1:0]
R/O
R/O
R/O
R/O
R/O
R/O
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:4] - Unused
BIT [3:2] - Transmit Section Trace Message Length[1:0]
These two READ/WRITE bit-fields are used to specify the length of the message that is to be repetitively transmitted
via the J0 byte as shown in the table below.
J
Message Length
MSG_LENGTH[1:0]
CORRESPONDING MESSAGE LENGTH(BYTES)
00
1 Byte
01
16 Bytes
10 or 11
64 Bytes
BIT [1:0] - Transmit J0 Byte Insertion Method[1:0]
These two READ/WRITE bit-fields are used to specify the source of the message that will be transported via the J0 byte/
message, within the outbound STM-0 data-stream, as shown in the table below
Source of J0 Byte Message
J0_TYPE
[1:0]
CORRESPONDING SOURCE OF J0 BYTE/MESSAGE.
00
Automatically set the J0 Byte, in each outbound STM-0 frame to 0x01.
01
Transmit Section Trace Message Buffer. The Transmit STM-0 Section Trace Buffer Memory
is located at Address locations 0x0800 through 0x083F.
10
From the Transmit J0 Byte Value[7:0] Register. In this setting, the Transmit STM-0 SOH Processor Block will read out the contents of the Transmit J0 Value[7:0] Register (Address Location= 0x074B), and will insert this value into the J0 byte of each outbound STM-0 frame.
11
From the TxSOH_n Input pin.
203
XRT86SH221
REV. 1.0.1
6.7
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
TRANSMIT PATH OVERHEAD PROCESSOR BLOCK REGISTERS
The register map for the Transmit STM-0 POH Processor Block is presented in the Table below. Additionally, a
detailed description of each of the Transmit STM-0 POH Processor Block registers is presented below.
I
TABLE 175: TRANSMIT STM-0 PATH CONTROL REGISTER - BYTE 2 (TPCR2 0X0781)
BIT7
BIT6
BIT 5
BIT 4
BIT 3
BIT 2
Unused
BIT 1
BIT 0
Payload Type[1:0]
R/O
R/O
R/O
R/O
R/O
R/O
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:2] - Unused
BIT [1:0] - Payload Type[1:0]
This READ/WRITE bit-field is used to configure the device for the type of VC-3 payload the device will be carrying.
00 - LTE (input POH and fixed stuffing).
01 - Asynchronous E1 mapping.
10 - Reserved
11 - Reserved
204
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 176: TRANSMIT STM-0 PATH CONTROL REGISTER - BYTE 1 (TPCR1 0X0782)
BIT 7
BIT 6
BIT 5
BIT 4
Unused
BIT 3
BIT 2
BIT 1
BIT 0
Z5 Insertion
Type
Z4 Insertion
Type
Z3 Insertion
Type
H4 Insertion
Type
R/W
R/O
R/O
R/O
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:4] - Unused
BIT 3 - Z5 Insertion Type
This READ/WRITE bit-field is used to configure the Transmit STM-0 POH Processor Block to use either the Transmit
STM-0 Path - Transmit Z5 Value Register or the TPOH input pin as the source for the Z5 byte, in the outbound VC-3.
0 - Configures the Transmit STM-0 POH Processor Block to use the Transmit STM-0 Path - Transmit Z5 Value
Register (Address Location= 0x07B3).
1 - Configures the Transmit STM-0 POH Processor Block to use the TPOH input as the source for the Z5 byte, in the
outbound VC-3.
BIT 2 - Z4 Insertion Type
This READ/WRITE bit-field is used to configure the Transmit STM-0 POH Processor Block to use either the Transmit
STM-0 Path - Transmit Z4 Value Register or the TPOH input pin as the source for the Z4 byte, in the outbound VC-3.
0 - Configures the Transmit STM-0 POH Processor Block to use the Transmit STM-0 Path - Transmit Z4 Value
Register (Address Location= 0x07AF).
1 - Configures the Transmit STM-0 POH Processor Block to use the TPOH input as the source for the Z4 byte, in the
outbound VC-3.
BIT 1 - Z3 Insertion Type
This READ/WRITE bit-field is used to configure the Transmit STM-0 POH Processor Block to use either the Transmit
STM-0 Path - Transmit Z3 Value Register or the TPOH input pin as the source for the Z3 byte, in the outbound VC-3.
0 - Configures the Transmit STM-0 POH Processor Block to use the Transmit STM-0 Path - Transmit Z3 Value
Register (Address Location = 0x07AB).
1 - Configures the Transmit STM-0 POH Processor Block to use the TPOH input as the source for the Z3 byte, in the
outbound VC-3.
BIT 0 - H4 Insertion Type
This READ/WRITE bit-field is used to configure the Transmit STM-0 POH Processor Block to use either the Transmit
STM-0 Path - Transmit H4 Value Register or the TPOH input pin as the source for the H4 byte, in the outbound VC-3.
0 - Configures the Transmit STM-0 POH Processor Block to use the Transmit STM-0 Path - Transmit H4 Value
Register (Address Location= 0x07A7).
1 - Configures the Transmit STM-0 POH Processor Block to use the TPOH input as the source for the H4 byte, in the
outbound VC-3.
205
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 177: TRANSMIT STM-0 PATH CONTROL REGISTER - BYTE 0 (TPCR0 0X0783)
BIT 7
BIT 6
F2 Insertion
Type
BIT 5
HP-REI Insertion Type[1:0]
BIT 4
BIT 3
HP-RDI Insertion Type[1:0]
BIT 2
BIT 1
BIT 0
C2 Byte
Insertion
Type
C2 Byte Auto
Insert Mode
Enable
Transmit
AU-AIS
Enable
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT 7 - F2 Insertion Type
This READ/WRITE bit-field is used to configure the Transmit STM-0 POH Processor Block to use either the Transmit
STM-0 Path - Transmit F2 Value Register or the TPOH input pin as the source for the F2 byte, in the outbound VC-3.
0 - Configures the Transmit STM-0 POH Processor Block to use the Transmit STM-0 Path - Transmit F2 Value
Register (Address Location= 0x07A3).
1 - Configures the Transmit STM-0 POH Processor Block to use the TPOH input as the source for the F2 byte, in the
outbound VC-3.
BIT [6:5] - High Order Path Remote Error Indication (HP-REI) Insertion Type[1:0]
These two READ/WRITE bit-fields are used to configure the Transmit STM-0 POH Processor Block to use one of the
three following sources for the HP-REI bit-fields (e.g., Bit-7 through -4, within the G1 byte of the outbound VC-3).
•
From the corresponding Receive STM-0 POH Processor Block (e g., when it detects B3 bytes in its incoming
VC-3 data).
•
From the Transmit G1 Byte Value Register (Address Location= 0x079F).
•
From the TPOH input pin.
00/11 - Configures the Transmit STM-0 POH Processor Block to set Bits-7 through -4 (in the G1 byte of the outbound
VC-3) based upon receive conditions as detected by the corresponding Receive STM-0 POH Processor Block.
01 - Configures the Transmit STM-0 POH Processor Block to set Bits-7 through -4 (in the G1 byte of the outbound
VC-3) based upon the contents within the Transmit G1 Byte Value register (Address Location= 0x079F).
10 - Configures the Transmit STM-0 POH Processor Block to use the TPOH input pin as the source of Bits 1 through
4 (in the G1 byte of the outbound VC-3).
BIT [4:3] - High Order Path Remote Defect Indicator (HP-RDI) Insertion Type[1:0]
These two READ/WRITE bit-fields are used to configure the Transmit STM-0 POH Processor Block to use one of the
three following sources for the HP-RDI bit-fields (e.g., Bits-3 through -1, within the G1 byte of the outbound VC-3).
•
From the Receive STM-0 POH Processor Block (e g., when it detects various alarm conditions within its
incoming VC-3 data).
•
From the Transmit G1 Byte Value Register (Address Location = 0x079F).
•
From the TPOH input pin.
00/11 - Configures the Transmit STM-0 POH Processor Block to set Bits-3 through -1 (in the G1 byte of the outbound
VC-3) based upon receive conditions as detected by the Receive STM-0 POH Processor Block.
01 - Configures the Transmit STM-0 POH Processor Block to set Bits-3 through -1 (in the G1 byte of the outbound
VC-3) based upon the contents within the Transmit G1 Byte Value register.
10 - Configures the Transmit STM-0 POH Processor Block to use the TPOH input pin as the source of Bits 5 through
7 (in the G1 byte of the outbound VC-3).
BIT 2 - C2 Insertion Type
This READ/WRITE bit-field is used to configure the Transmit STM-0 POH Processor Block to use either the Transmit
STM-0 Path - Transmit C2 Byte Value Register or the TPOH input pin as the source for the C2 byte, in the outbound
VC-3.
0 - Configures the Transmit STM-0 POH Processor Block to use the Transmit STM-0 Path - Transmit C2 Value
Register (Address Location= 0x079B).
1 - Configures the Transmit STM-0 POH Processor Block to use the TPOH input as the source for the C2 byte, in the
206
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
outbound VC-3.
BIT 1 - Auto-Insert HP-PDI Indicator Enable
This READ/WRITE bit-field are used to configure the Transmit STM-0 POH Processor Block to automatically insert the
HP-PDI (Path - Payload Defect Indicator) whenever the AU-AIS indicator is received from the Receive SONET POH
Processor Block.
If this feature is enabled, then the Transmit STM-0 POH Processor Block will automatically set the C2 byte (within the
outbound VC-3) to 0xE1-0xFC (to indicate a HP-PDI condition) whenever it receives the AU-AIS indicator, from the
Receive SONET POH Processor Block.
BIT 0 - Transmit AU-AIS Enable
This READ/WRITE bit-field is used to configure the Transmit STM-0 POH Processor Block to (via software control)
transmit an AU-AIS indicator to the remote PTE. If this feature is enabled, then the Transmit STM-0 POH Processor
Block will automatically set the H1, H2, H3 and all the VC-3 bytes to an All Ones pattern, prior to routing this data to the
Transmit STM-0 TOH Processor Block.
0 - Configures the Transmit STM-0 POH Processor Block to NOT transmit the AU-AIS indicator to the remote PTE.
1 - Configures the Transmit STM-0 POH Processor Block to transmit the AU-AIS indicator to the remote PTE.
207
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
TABLE 178: TRANSMIT STM-0 PATH J1 BYTE VALUE REGISTER (TPJ1VR 0X0793)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
Transmit J1 Byte[7:0]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:0] - Transmit J1 Byte Value
These READ/WRITE bit-fields are used to have software control over the value of the J1 byte, within each outbound
VC-3.
If the user configures the Transmit STM-0 POH Processor Block to this register as the source of the J1 byte, then it will
automatically write the contents of this register into the J1 byte location, within each outbound VC-3.
This feature is enabled whenever the user writes a ‘10’ into BIT[2:0] (Transmit J1 Byte Insertion Method[1:0]) within the
Transmit STS-1/STS-3 Path - J1 Control Register register (Address Location= 0x07BB).
TABLE 179: TRANSMIT STM-0 PATH B3 BYTE ERROR MASK REGISTER (TPB3EM 0X0797)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
Transmit B3 Byte Mask[7:0]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:0] - Transmit B3 Byte Mask[7:0]
This READ/WRITE bit-field is used to insert errors into the B3 byte, within the outbound VC-3, prior to transmission to
the Transmit STM-0 TOH Processor Block.
The Transmit STM-0 POH Processor Block will perform an XOR operation with the contents of this register, and the B3
byte value. The results of this operation will be written back into the B3 byte of the outbound VC-3.
NOTE: If the user sets a particular bit-field, within this register, to 1, then that corresponding bit, within the outbound B3
byte will be in error. For normal operation, the user should set this register to 0x00.
TABLE 180: TRANSMIT STM-0 PATH C2 BYTE VALUE REGISTER (TPC2VR 0X079B)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
Transmit C2 Byte Value[7:0]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:0] - Transmit C2 Byte Value
These READ/WRITE bit-fields are used to have software control over the value of the C2 byte, within each outbound
VC-3.
If the user configures the Transmit STM-0 POH Processor Block to this register as the source of the C2 byte, then it will
automatically write the contents of this register into the C2 byte location, within each outbound VC-3.
This feature is enabled whenever the user writes a 0 into BIT 2 (C2 Byte Insertion Type) within the Transmit STM-0 Path
- SONET Control Register - Byte 0 register (Address Location= 0x0783).
208
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 181: TRANSMIT STM-0 PATH G1 BYTE VALUE REGISTER (TPG1VR 0X079F)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
Transmit G1 Byte Value[7:0]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:0] - Transmit G1 Byte Value:
These READ/WRITE bit-fields are used to have software control over the contents of the HP-RDI and HP-REI bit-fields,
within each G1 byte in the outbound VC-3.
NOTE: If the users sets HP-REI Insertion Type[1:0] and HP-RDI Insertion Type[1:0] bits to the value [0, 1], then
contents of the HP-REI and the HP-RDI bit-fields (within each G1 byte of the outbound VC-3) will be dictated by
the contents of this register. The HP-REI Insertion Type[1:0] and HP-RDI Insertion Type[1:0] bit-fields are
located in the Transmit STM-0 Path - SONET Control Register - Byte 0 Register (Address Location= 0x0783)
TABLE 182: TRANSMIT STM-0 PATH F2 BYTE VALUE REGISTER (TPF2VR 0X07A3)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
Transmit F2 Byte Value[7:0]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:0] - Transmit F2 Byte Value
These READ/WRITE bit-fields are used to have software control over the value of the F2 byte, within each outbound
VC-3.
If the user configures the Transmit STM-0 POH Processor Block to this register as the source of the F2 byte, then it will
automatically write the contents of this register into the F2 byte location, within each outbound VC-3.
This feature is enabled whenever the user writes a 0 into BIT7 (F2 Byte Insertion Type) within the Transmit STM-0 Path
- SONET Control Register - Byte 0 register (Address Location= 0x0783).
TABLE 183: TRANSMIT STM-0 PATH H4 BYTE VALUE REGISTER (TPH4VR 0X07A7)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
Transmit H4 Byte Value[7:0]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:0] - Transmit H4 Byte Value
These READ/WRITE bit-fields are used to have software control over the value of the H4 byte, within each outbound
VC-3.
If the user configures the Transmit STM-0 POH Processor Block to this register as the source of the H4 byte, then it will
automatically write the contents of this register into the H4 byte location, within each outbound VC-3.
This feature is enabled whenever the user writes a 0 into BIT 0 (H4 Insertion Type) within the Transmit STM-0 Path SONET Control Register - Byte 1 register (Address Location= 0x07A7).
209
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
TABLE 184: TRANSMIT STM-0 PATH Z3 BYTE VALUE REGISTER (TPZ3VR 0X07AB)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
Transmit Z3 Byte Value[7:0]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:0] - Transmit Z3 Byte Value
These READ/WRITE bit-fields are used to have software control over the value of the Z3 byte, within each outbound
VC-3. If the user configures the Transmit STM-0 POH Processor Block to this register as the source of the Z3 byte, then
it will automatically write the contents of this register into the Z3 byte location, within each outbound VC-3.
This feature is enabled whenever the user writes a 0 into BIT 1 (Z3 Insertion Type) within the Transmit STM-0 Path SONET Control Register - Byte 0 register (Address Location= 0x0782).
TABLE 185: TRANSMIT STM-0 PATH Z4 BYTE VALUE REGISTER (TPZ4VR 0XN9AF)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
Transmit Z4 Byte Value[7:0]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:0] - Transmit Z4 Byte Value
These READ/WRITE bit-fields are used to have software control over the value of the Z4 byte, within each outbound
VC-3.
If the user configures the Transmit STM-0 POH Processor Block to this register as the source of the Z4 byte, then it will
automatically write the contents of this register into the Z4 byte location, within each outbound VC-3.
This feature is enabled whenever the user writes a 0 into BIT 2 (Z4 Insertion Type) within the Transmit STM-0 Path SONET Control Register - Byte 0 register (Address Location= 0x0782).
TABLE 186: TRANSMIT STM-0 PATH Z5 BYTE VALUE REGISTER (TPZ5VR 0X07B3)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
Transmit Z5 Byte Value[7:0]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:0] - Transmit Z5 Byte Value
These READ/WRITE bit-fields are used to have software control over the value of the Z5 byte, within each outbound
VC-3.
If the user configures the Transmit STM-0 POH Processor Block to this register as the source of the Z5 byte, then it will
automatically write the contents of this register into the Z5 byte location, within each outbound VC-3.
This feature is enabled whenever the user writes a 0 into BIT 3 (Z5 Insertion Type) within the Transmit STM-0 Path SONET Control Register - Byte 0 register (Address Location= 0x0782).
210
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 187: TRANSMIT STM-0 PATH POINTER CONTROL REGISTER (TPPCR 0X07B7)
BIT 7
BIT 6
Unused
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
Pointer
Force
Check Stuff
Insert
Negative
Stuff
Insert
Positive Stuff
Insert
Continuous
NDF Events
Insert
Single NDF
Event
R/O
R/O
R/W
R/W
W
W
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:6] - Unused
BITt 5 - Pointer Force
This READ/WRITE bit-field is used to load the values contained within the Transmit STM-0 POH Arbitrary H1 Pointer
and Transmit STM-0 POH Arbitrary H2 Pointer registers (Address Location= 0x07BF and 0x07C3) into the H1 and H2
bytes (within the outbound STM-0 data stream).
The actual location of the VC-3 will NOT be adjusted, per the value of H1 and H2 bytes. Hence, this feature should
cause the remote terminal to declare an Invalid Pointer condition.
0 - Configures the Transmit STM-0 POH and TOH Processors to Transmit STM-0 data will normal and correct H1 and
H2 bytes.
1 - Configures the Transmit STM-0 POH and TOH Processor Blocks to overwrite the values of the H1 and H2 bytes
(in the outbound STM-0 data-stream) with the values in the Transmit STM-0 POH Arbitrary H1 and H2 Pointer registers.
BITt 4 - Check Stuff Monitoring
This READ/WRITE bit-field is used to configure the Transmit STM-0 POH and TOH Processor Blocks to only execute
a Positive, Negative or NDF event (via the Insert Positive Stuff, Insert Negative Stuff, Insert Continuous or Single NDF
options, via software command) if no pointer adjustment (NDF or otherwise) has occurred during the last 3 STM-0 frame
periods.
0 - Disables this feature.In this mode, the Transmit STM-0 POH and TOH Processor Block will execute a softwarecommanded pointer adjustment event, independent of whether a pointer adjustment event has occurred in the last 3
STM-0 frame periods.
1 - Enables this feature.In this mode, the Transmit STM-0 POH and TOH Processor Block will ONLY execute a
software-commanded pointer adjustment event, if no pointer adjustment event has occurred during the last 3 STM-0
frame periods.
BITt 3 - Insert Negative Stuf
This READ/WRITE bit-field is used to configure the Transmit STM-0 POH and TOH Processor Blocks to insert a
negative-stuff into the outbound STM-0 data stream. This command, in-turn will cause a Pointer Decrementing event
at the remote terminal.
Writing a 0 to 1 transition into this bit-field causes the following to happen.
•
A negative-stuff will occur (e.g., a single payload byte will be inserted into the H3 byte position within the
outbound STM-0 data stream).
•
The D bits, within the H1 and H2 bytes will be inverted (to denote a Decrementing Pointer Adjustment event).
•
The contents of the H1 and H2 bytes will be decremented by 1, and will be used as the new pointer from this
point on.
NOTE: Once the user writes a 1 into this bit-field, the XRT86SH328 will automatically clear this bit-field. Hence, there
is no need to subsequently reset this bit-field to 0.
BITt 2 - Insert Positive Stuff
This READ/WRITE bit-field is used to configure the Transmit STM-0 POH and TOH Processor Blocks to insert a
positive-stuff into the outbound STM-0 data stream. This command, in-turn will cause a Pointer Incrementing event at
the remote terminal.
Writing a 0 to 1 transition into this bit-field causes the following to happen.
211
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
•
A positive-stuff will occur (e.g., a single stuff-byte will be inserted into the STM-0 data-stream, immediately
after the H3 byte position within the outbound STM-0 data stream).
•
The I bits, within the H1 and H2 bytes will be inverted (to denote a Incrementing Pointer Adjustment event).
•
The contents of the H1 and H2 bytes will be incremented by 1, and will be used as the new pointer from this
point on.Note
NOTE: Once the user writes a 1 into this bit-field, the XRT86SH328 will automatically clear this bit-field. Hence, there
is no need to subsequently reset this bit-field to 0.
BITt 1 - Insert Continuous NDF Events
This READ/WRITE bit-field is used configure the Transmit STM-0 POH and TOH Processor Blocks to continuously
insert a New Data Flag (NDF) pointer adjustment into the outbound STM-0 data stream.
As the Transmit STM-0 POH and TOH Processor Blocks insert the NDF event into the STM-0 data stream, it will
proceed to load in the contents of the Transmit STM-0 POH Arbitrary H1 Pointer and Transmit STM-0 POH Arbitrary
H2 Pointer registers into the H1 and H2 bytes (within the outbound STM-0 data stream).
0 - Configures the Transmit STM-0 TOH and POH Processor Blocks to not continuously insert NDF events into the
outbound STM-0 data stream.
1- Configures the Transmit STM-0 TOH and POH Processor Blocks to continuously insert NDF events into the
outbound STM-0 data stream.
BITt 0 - Insert Single NDF Event
This READ/WRITE bit-field is used to configure the Transmit STM-0 POH and TOH Processor Blocks to insert a New
Data Flag (NDF) pointer adjustment into the outbound STM-0 data stream.
Writing a 0 to 1 transition into this bit-field causes the following to happen
•
The N bits, within the H1 byte will set to the value 1001
•
The ten pointer-value bits (within the H1 and H2 bytes) will be set to new pointer value per the contents within
the Transmit STM-0 POH - Arbitrary H1 Pointer and Transmit STM-0 POH Arbitrary H2 Pointer registers
(Address Location= 0x07BF and 0xN9C3).
NOTE: Afterwards, the N bits will resume their normal value of 0110 and this new pointer value will be used as the new
pointer from this point on. Once the user writes a 1 into this bit-field, the XRT86SH328 will automatically clear
this bit-field. Hence, there is no need to subsequently reset this bit-field to 0.
212
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 188: TRANSMIT STM-0 PATH J1 CONTROL REGISTER (TPJ1CR 0X07BB)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
Unused
BIT 2
Transmit Path Trace
Message Length[1:0]
BIT 1
BIT 0
Transmit J1 Byte
Insertion Method[1:0]
R/O
R/O
R/O
R/O
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:4] - Unused
BIT [3:2] - Transmit Path Trace Message Length[1:0]
These two READ/WRITE bit-fields are used to specify the length of the message that is to be repetitively transmitted
via the J1 byte as shown in the table below.
J
Message Length
MSG_LENGTH[1:0]
CORRESPONDING MESSAGE LENGTH(BYTES)
00
1 Byte
01
16 Bytes
10 or 11
64 Bytes
BIT [1:0] - Transmit J1 Byte Insertion Method[1:0]
These READ/WRITE bit-fields are used to specify the method that the user will use to insert the J1 byte into the
outbound VC-3. The relationship between the contents of these bit-fields and the corresponding J1 Byte Insertion
Method is presented below.
Insertion Method
J1 BYTE INSERTION
METHOD[1:0]
RESULTING INSERTION METHOD
00
Insert the value 0x00
01
Transmit Path Trace Message Buffer. The Transmit STM-0 Path Trace Buffer
Memory is located at Address locations 0x0900 through 0x093F.
10
Insert from the Transmit SONET Path - Transmit J1 Byte Value Register (Address
Location= 0x0793)
11
Insert via the TxPOH_n input port
TABLE 189: TRANSMIT STM-0 PATH ARBITRARY H1 POINTER REGISTER (TPH1PR 0X07BF)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
NDF Bits
BIT 2
SS Bits
BIT 1
BIT 0
H1 Pointer Value
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:4] - NDF (New Data Flag) Bits
These READ/WRITE bit-fields are used provide the value that will be loaded into the NDF bit-field (of the H1 byte),
whenever a 0 to 1 transition occurs in BIT 5 (Pointer Force) within the Transmit STM-0 Path - Transmit Path Control
213
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
Register (Address Location= 0x07B7).
BIT [3:2] - SS Bits
These READ/WRITE bit-fields is used to provide the value that will be loaded into the SS bit-fields (of the H1 byte)
whenever a 0 to 1 transition occurs in BIT 5 (Pointer Force) within the Transmit STM-0 Path - Transmit Path Control
Register (Address Location= 0x07B7).
The SS bits have no functional value, within the H1 byte.
BIT [1:0] - H1 Pointer Value[1:0]
These two READ/WRITE bit-fields, along with the constants of the Transmit STM-0 Path - Transmit Arbitrary H2 Pointer
Register (Address Location= 0x07C3) are used to provide the contents of the Pointer Word.
These two READ/WRITE bit-fields are used to define the value of the two most significant bits within the Pointer word.
Whenever a 0 to 1 transition occurs in BIT 5 (Pointer Force) within the Transmit STM-0 Path - Transmit Path Control
Register (Address Location= 0x07B7), the values of these two bits will be loaded into the two most significant bits within
the Pointer Word.
TABLE 190: TRANSMIT STM-0 PATH ARBITRARY H2 POINTER REGISTER (TPH2PR 0X07C3)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
H2 Pointer Value[7:0]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:0] - H2 Pointer Value[1:0]
These eight READ/WRITE bit-fields, along with the constants of bits 1 and 0 within the Transmit STM-0 Path - Transmit
Arbitrary H1 Pointer Register (Address Location= 0x07C3) are used to provide the contents of the Pointer Word. These
two READ/WRITE bit-fields are used to define the value of the eight least significant bits within the Pointer word.
Whenever a 0 to 1 transition occurs in BIT 5 (Pointer Force) within the Transmit STM-0 Path - Transmit Path Control
Register (Address Location= 0x07B7), the values of these eight bits will be loaded into the H2 byte, within the outbound
STM-0 data stream.
TABLE 191: TRANSMIT STM-0 PATH CURRENT POINTER BYTE REGISTER - BYTE 1 (TPCPR1 0X07C6)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
Unused
BIT 1
BIT 0
Tx Pointer High[1:0]
R/O
R/O
R/O
R/O
R/O
R/O
R/O
R/O
0
0
0
0
0
0
1
0
BIT [7:2] - Unused
BIT [1:0] - Transmit Pointer Word - High[1:0]
These two READ-ONLY bits, along with the contents of the Transmit STM-0 Path - Transmit Current Pointer Byte
Register - Byte 0 (Address Location= 0x07C7) reflect the current value of the pointer (or offset of VC-3 within the STM0 frame). These two bits contain the two most significant bits within the 10-bit pointer word.
TABLE 192: TRANSMIT STM-0 PATH CURRENT POINTER BYTE REGISTER - BYTE 0 (TPCPR0 0X07C7)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
Tx Pointer Low[7:0]
R/O
R/O
R/O
R/O
R/O
R/O
R/O
R/O
0
0
0
0
1
0
1
0
214
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
BIT [7:0] - Transmit Pointer Word - Low[7:0]
These two READ-ONLY bits, along with the contents of the Transmit STM-0 Path - Transmit Current Pointer Byte
Register - Byte 1 (Address Location= 0x07C6) reflect the current value of the pointer (or offset of VC-3 within the STM0 frame). These two bits contain the eight least significant bits within the 10-bit pointer word.
TABLE 193: TRANSMIT STM-0 PATH HP-RDI CONTROL REGISTER - BYTE 2 (TPHP-RDICR2 0X07C9)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
Unused
BIT 2
BIT 1
HP-PLM
HP-RDI Code[2:0]
BIT 0
Transmit
HP-RDI
upon
HP-PLM
R/O
R/O
R/O
R/O
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:4] - Unused
BIT [3:1] - HP-PLM (High Order Path - Payload Mismatch) - HP-RDI Code
These three READ/WRITE bit-fields are used to specify the value that the Transmit STM-0 POH Processor Block will
transmit, within the HP-RDI bit-fields of the G1 byte (within the outbound VC-3), whenever the corresponding Receive
STM-0 POH Processor Block detects and declares a HP-PLM condition. In order to enable this feature, the user must
set BIT 0 (HP-RDI upon HP-PLM) within this register to 1.
BIT 0 - Transmit HP-RDI upon HP-PLM
This READ/WRITE bit-field is used to configure the Transmit STM-0 POH Processor Block to automatically transmit the
HP-RDI Code (as configured in Bits 3 through 1 - within this register) whenever the corresponding Receive STM-0 POH
Processor Block declares a HP-PLM condition.
0 - Disables the automatic transmission of HP-RDI upon detection of HP-PLM.
1 - Enables the automatic transmission of HP-RDI upon detection of HP-PLM.
215
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
TABLE 194: TRANSMIT STM-0 PATH HP-RDI CONTROL REGISTER - BYTE 1 (TPHP-RDICR1 0X07CA)
BIT 7
BIT 6
BIT 5
HP-TIM
HP-RDI Code[2:0]
BIT 4
BIT 3
Transmit
HP-RDI
upon
HP-TIM
BIT 2
BIT 1
HP-UNEQ
HP-RDI Code[2:0]
BIT 0
Transmit
HP-RDI
upon
HP-UNEQ
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:5] - HP-TIM (High Order Path - Trace Identification Message Mismatch) - HP-RDI Code
These three READ/WRITE bit-fields are used to specify the value that the Transmit STM-0 POH Processor Block will
transmit within the HP-RDI bit-fields of the G1 byte (within the outbound VC-3), whenever the Receive STM-0 POH
Processor Block detects and declares the HP-TIM defect condition.
To enable this feature, the user must set BIT 4 (Transmit HP-RDI upon HP-TIM) within this register to 1.
BIT 4 - Transmit HP-RDI upon HP-TIM
This READ/WRITE bit-field is used to configure the Transmit STM-0 POH Processor Block to automatically transmit the
HP-RDI Code (as configured in Bits 7 through 5 - within this register) whenever the corresponding Receive STM-0 POH
Processor Block declares the HP-TIM defect condition.
0 - Disables the automatic transmission of HP-RDI upon detection of HP-TIM.
1 - Enables the automatic transmission of HP-RDI upon detection of HP-TIM.
BIT [3:1] - HP-UNEQ (High Order Path - Unequipped) - HP-RDI Code
These three READ/WRITE bit-fields are used to specify the value that the Transmit STM-0 POH Processor Block will
transmit, within the HP-RDI bit-fields of the G1 byte (within the outbound VC-3), whenever the Receive STM-0 POH
Processor Block detects and declares the HP-UNEQ defect condition.
To enable this feature, the user must set BIT 0 (Transmit HP-RDI upon HP-UNEQ) within this register to 1.
BIT 0 - Transmit HP-RDI upon HP-UNEQ
This READ/WRITE bit-field is used to configure the Transmit STM-0 POH Processor Block to automatically transmit the
HP-RDI Code (as configured in Bits 3 through 1 - within this register) whenever the corresponding Receive STM-0 POH
Processor Block declares the HP-UNEQ defect condition.
0 - Disables the automatic transmission of HP-RDI upon detection of HP-UNEQ.
1 - Enables the automatic transmission of HP-RDI upon detection of HP-UNEQ.
216
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 195: TRANSMIT STM-0 PATH HP-RDI CONTROL REGISTER - BYTE 0 (TPHP-RDICR0 0X07CB)
BIT 7
BIT 6
BIT 5
AU-LOP
HP-RDI Code[2:0]
BIT 4
BIT 3
Transmit
HP-RDI
upon
AU-LOP
BIT 2
BIT 1
AU-AIS
HP-RDI Code[2:0]
BIT 0
Transmit
HP-RDI
upon
AU-AIS
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:5] - AU-LOP (Administrative Unit - Loss of Pointer) - HP-RDI Code
These three READ/WRITE bit-fields are used to specify the value that the Transmit STM-0 POH Processor Block will
transmit, within the HP-RDI bit-fields of the G1 byte (within the outbound VC-3), whenever the corresponding Receive
STM-0 POH Processor Block detects and declares a AU-LOP condition.
To enable this feature, the user must set BIT 4 (HP-RDI upon AU-LOP) within this register to 1.
BIT 4 - Transmit HP-RDI upon AU-LOP
This READ/WRITE bit-field is used to configure the Transmit STM-0 POH Processor Block to automatically transmit the
HP-RDI Code (as configured in Bits 7 through 5 - within this register) whenever the corresponding Receive STM-0 POH
Processor Block declares a AU-LOP condition
0 - Disables the automatic transmission of HP-RDI upon detection of AU-LOP.
1 - Enables the automatic transmission of HP-RDI upon detection of AU-LOP.
BIT[3:1]AU-AIS (Administrative Unit - Alarm Indication Signal) - HP-RDI Code
These three READ/WRITE bit-fields are used to specify the value that the Transmit STM-0 POH Processor Block will
transmit, within the HP-RDI bit-fields of the G1 byte (within the outbound VC-3), whenever the corresponding Receive
STM-0 POH Processor Block detects and declares an AU-AIS condition.
To enable this feature, the user must set BIT 4 (HP-RDI upon AU-AIS) within this register to 1.
BIT 0 - Transmit HP-RDI upon AU-AIS
This READ/WRITE bit-field is used to configure the Transmit STM-0 POH Processor Block to automatically transmit the
HP-RDI Code (as configured in Bits 7 through 5 - within this register) whenever the corresponding Receive STM-0 POH
Processor Block declares a AU-AIS condition.
0 - Disables the automatic transmission of HP-RDI upon detection of AU-AIS.
1 - Enables the automatic transmission of HP-RDI upon detection of AU-AIS.
TABLE 196: TRANSMIT STM-0 PATH SERIAL PORT CONTROL REGISTER (TPSPCR 0X07CF)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
Unused
BIT 2
BIT 1
BIT 0
TxPOH Clock Speed[4:0]
R/O
R/O
R/O
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:4] - Unused
BIT [3:0] - TxPOHClk Output Clock Signal Speed
These READ/WRITE bit-fields are used to specify the frequency of the TxPOHClk output clock signal. The formula that
relates the contents of these register bits to the TxPOHClk frequency is presented below.
FREQ = 51.84 /[2 * (TxPOH_CLOCK_SPEED + 1)
For STM-1 applications, the frequency of the RxPOHClk output signal must be in the range of 2.36MHz to 25.92MHz
217
XRT86SH221
REV. 1.0.1
6.8
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
Global E1 Line Interface Unit Register Descriptions (LIU)
TABLE 197: GLOBAL LINE INTERFACE CONTROL REGISTER 5 (GLICR5 0X0100H)
BIT7
BIT6
BIT5
BIT4
BIT3
Reserved
ATAOS
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
BIT2
BIT1
BIT0
TCLKCNTL
LIUSRST
R/W
R/W
R/W
0
0
0
Reserved
BIT 7 - Reserved
BIT 6 - Automatic All Ones Generation Upon RLOS Condition
This bit will force an Unframed All Ones signal to the Egress Tx LIU Line Interface whenever its corresponding Ingress
Rx LIU input experiences an RLOS condition.
0 - Disabled
1 - Enable ATAOS
BIT [5:2] - Reserved
BIT 1 - Transmit Clock Control
This bit is used to set the transmitter activity in the event that the transmit clock is missing.
0 - Send All Zeros to the Line
1 - Send All Ones to the Line
BIT 0 - Software Reset of LIU Blocks Only
This bit grants permission to reset all internal circuits to their default state. This bit does NOT reset the register values.
0 - Normal Operation
1 - LIU Software Reset
218
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 198: GLOBAL LINE INTERFACE CONTROL REGISTER 4 (GLICR4 0X0101H)
BIT7
BIT6
BIT5
LCV_OFSEL
Reserved
R/W
R/W
R/W
0
0
0
BIT4
BIT3
BIT2
BIT1
BIT0
Reserved
RXMUTE
EXLOS
ICT
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
LoopBack[1:0]
BIT 7 - Line Code Violation / Over Flow Monitoring Select
This bit is used to select the monitoring function of the LCV_OF alarm in the LIU interrupt block.
0 - Monitors LCV errors
1 - Monitors the over flow status of the LCV Counter
BIT [5:4] - LIU Loop Back Control
These bits are used to set the Remote Lin Loopback within the LIU.
00, 01, 11 - Reserved
10 - Remote Loopback Enabled
BIT 2 - Receive Mute Upon RLOS
This bit forces All Zeros on the Ingress Path to prevent data chattering during an RLOS condition.
0 - Disabled
1 - RXMUTE enabled
BIT 1 - Extended Loss of Signal
This bit is used to extend the time period to 4,096 recovered line clocks before declaring/clearing RLOS on the Ingress
path.
0 - Normal RLOS declaration/clearance
1 - EXLOS Enabled
BIT 0 - In Circuit Testing
For Internal use only. This bit should be set to Low. This bit forces all Ingress and Egress signals to be High-Z.
0 - Disabled
1 - Enabled (Force High-Z)
TABLE 199: GLOBAL LINE INTERFACE CONTROL REGISTER 3 (GLICR3 0X0102H)
BIT7
BIT6
BIT5
BIT4
BIT3
BIT2
Reserved
BIT1
BIT0
MCLKSEL[1:0]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:2] - Reserved
BIT [1:0] - Master Clock Select
These bits configure the input reference clock to the Low speed interface blocks.
00 - 2.048Mhz Input Clock Reference
01 = 4.096MHz Input Clock Reference
10 - 8.192 MHz Input Clock Reference
11 = 16.384MHz Input Clock Reference
219
XRT86SH221
REV. 1.0.1
6.9
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
Individual Channel E1 Line Interface Unit Register Descriptions (LIU)
TABLE 200: CHANNEL LINE INTERFACE CONTROL REGISTER 9 (CLICR9 0XN000H)
BIT7
BIT6
PRBS_QRSS PRBS_Tx_Rx
BIT5
BIT4
BIT3
RxON
BIT2
BIT1
BIT0
Reserved
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT 7 - PRBS/QRSS Select
This bit is used to select the type of diagnostic pattern.
0 - PRBS
1 - QRSS
BIT 6 - Random Bit Sequence Direction Select
This bit selects which direction the diagnostic pattern will be sent.
0 - Egress (TTIP/TRING)
1 - Ingress (Toward the VT Mapper Block)
BIT 5 - Receiver On Select
This bit is used to turn the receiver On of Off.
0 - Off
1 - On
BIT [4:0] - Reserved
220
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 201: CHANNEL LINE INTERFACE CONTROL REGISTER 8 (CLICR8 0XN001H)
BIT7
BIT6
BIT5
BIT4
BIT3
RxTSEL
TxTSEL
Force to 0
TERSEL
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
BIT2
BIT1
BIT0
JBWSEL
FIFOSEL
R/W
R/W
R/W
0
0
0
JASEL[1:0]
BIT 7 - Receive Termination Select
This bit is used to select between the internal receive termination (line impedance) and High-Z.
0 - High-Z
1 - Internal Termination
BIT 6 - Transmit Termination Select
This bit is used to select between the internal transmit termination (line impedance) and High-Z.
0 - High-Z
1 - Internal Impedance
BIT 5 - This bit must be set to 0 at all times
BIT 4 - Transmit and Receive Termination Select
This bit sets the termination impedance for both the LIU Receiver and Transmitter.
0 - 75 Ω
1 - 120 Ω
BIT [3:2] - Jitter Attenuator Select
This bit is used to enable the receive jitter attenuator.
00 - Disabled
01 - Transmit Path
10 - Receive Path
11 - Receive Path
BIT 1 - Jitter Bandwidth Select
This bit is used to select the bandwidth of the Receive and Transmit Jitter Attenuators.
0 - 10 Hz
1 - 1.5 Hz
BIT 0 - FIFO Depth Select
This bit is used to select the depth of the FIFO within both the Receive and Transmit Jitter Attenuators.
0 - 32-Bit FIFO
1 - 64-Bit FIFO
221
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
TABLE 202: CHANNEL LINE INTERFACE CONTROL REGISTER 7 (CLICR7 0XN002H)
BIT7
BIT6
INVPRBS
BIT5
BIT4
BIT3
TxTEST[2:0]
BIT2
TxON
BIT1
BIT0
LOOP[2:0]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT 7 - Invert PRBS/QRSS Pattern
This bit is used to invert the pattern chosen in register CLICR0 and if enabled in TxTEST[2:0] bits below.
0 - Normal Pattern
1 - Pattern Inversion Enabled
BIT [6:4] - Transmit Test Pattern Select
These bits are used to select diagnostic test pattern to be enabled to the egress LIU block.
0xx - Reserved
100 - PRBS/QRSS Pattern
101 - TAOS
11x - Reserved
BIT 3 - Transmitter Enable
This bit is used to enable the transmitter output.
0 - Disabled
1 - Enabled
BIT [2:0] - Diagnostic Loop Back Test Enable
These bits are used to enable the various loop back modes supported in the LIU block.
0xx - No Loop Back
100 - Dual Loop Back Enabled
101 - Analog Loop Back Enabled
110 - Remote Loop Back Enabled
111 - Digital Loop Back Enabled
222
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 203: CHANNEL LINE INTERFACE CONTROL REGISTER 6 (CLICR6 0XN003H)
BIT7
BIT6
Reserved
BIT5
BIT4
CODING
BIT3
Reserved
BIT2
BIT1
BIT0
INSBPV
INSBER
Reserved
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:6] - Reserved
BIT 5 - AMI/HDB3 Coding Scheme
This bit is used to select the type of E1 coding.
0 - HDB3
1 - AMI
BIT [4:3] - Reserved
BIT 2 - Insert Bipolar Violation
This bit is used to force one bipolar violation error in the egress transmit direction. This feature is enabled by the
transition of a 0 to 1.
0 - Disabled (Idle State)
1 - Force One Bipolar Violation
BIT 1 - Insert Bit Error
This bit is used to force one bit error in the egress transmit direction. This feature is enabled by the transition of a 0 to 1.
0 - Disabled (Idle State)
1 - Force One Bit Error
BIT 0 - Reserved
223
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
TABLE 204: CHANNEL LINE INTERFACE CONTROL REGISTER 5 (CLICR5 0XN004H)
BIT7
BIT6
BIT5
BIT4
BIT3
BIT2
BIT1
BIT0
Reserved
DMOIE
FLSIE
LCV_OFIE
Reserved
AISIE
RLOSIE
QRPIE
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT 7 - Reserved
BIT 6 - Digital Monitor Output Interrupt Enable
0 - Disabled
1 - Interrupt Enabled
BIT 5 - FIFO Limit Status Interrupt Enable
0 - Disabled
1 - Interrupt Enabled
BIT 4 - Line Code Violation / Over Flow Interrupt Enable
0 - Disabled
1 - Interrupt Enabled
BIT 3 - Reserved
BIT 2 - Alarm Indication Signal Interrupt Enable
0 - Disabled
1 - Interrupt Enabled
BIT 1 - Receive Loss of Signal Interrupt Enable
0 - Disabled
1 - Interrupt Enabled
BIT 0 - PRBS / QRSS Random Pattern Interrupt Enable
0 - Disabled
1 - Interrupt Enabled
224
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 205: CHANNEL LINE INTERFACE CONTROL REGISTER 4 (CLICR4 0XN005H)
BIT7
BIT6
BIT5
BIT4
BIT3
BIT2
BIT1
BIT0
Reserved
DMOD
FLSD
LCV_OFD
Reserved
AISD
RLOSD
QRPD
RO
RO
RO
RO
RO
RO
RO
RO
0
0
0
0
0
0
0
0
BIT 7 - Reserved
BIT 6 - Digital Monitor Output Detection
This bit field monitors the DMO function and will be set to 1 if there is no activity present on the transmitter outputs for
128 consecutive clock cycles. At all other times, this bit will be set to 0.
0 - No Alarm
1 - Alarm Detected
BIT 5 - FIFO Limit Status Detection
This bit field monitors the FIFO and will be set to 1 if the Read and Write pointers are with +/- 3bits. At all other times,
this bit will be set to 0.
0 - No Alarm
1 - Alarm Detected
BIT 4 - Line Code Violation / Over Flow Detection
This bit field monitors the LCV function on the receiver inputs and will be set to 1 if either (a) a line code violation occurs,
or (b) the LCV counter is full. This is dependent on bit 7 in GLICR1.
0 - No Alarm
1 - Alarm Detected
BIT 3 - Reserved
BIT 2 - Alarm Indication Signal Detection
This bit field monitors the AIS function on the receiver inputs and will be set to 1 if an alarm indication signal is detected
according to ITU-T G.775 Specifications.
0 - No Alarm
1 - Alarm Detected
BIT 1 - Receive Loss of Signal Detection
This bit field monitors the RLOS function on the receiver inputs and will be set to 1 if a Receiver Loss of Signal occurs
according to either ITU-T G.775 or ETSI-300-233.
0 - No Alarm
1 - Alarm Detected
BIT 0 - PRBS / QRSS Random Pattern Detection
This bit field monitors the PRBS/QRSS function on the receiver inputs and will be set to 1 if the chosen pattern in register
CLICR0 is detected.
0 -No Alarm
1 - Alarm Detected
225
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
TABLE 206: CHANNEL LINE INTERFACE CONTROL REGISTER 3 (CLICR3 0XN006H)
BIT7
BIT6
BIT5
BIT4
BIT3
BIT2
BIT1
BIT0
Reserved
DMOIS
FLSIS
LCV_OFIS
Reserved
AISIS
RLOSIS
QRPIS
RUR
RUR
RUR
RUR
RUR
RUR
RUR
RUR
0
0
0
0
0
0
0
0
BIT 7 - Reserved
BIT 6 - Digital Monitor Output Interrupt Status
0 - Disabled
1 - Change of Status Occurred
BIT 5 - FIFO Limit Status Interrupt Status
0 - Disabled
1 - Change of Status Occurred
BIT 4 - Line Code Violation / Over Flow Interrupt Status
0 - Disabled
1 - Change of Status Occurred
BIT 3 - Reserved
BIT 2 - Alarm Indication Signal Interrupt Status
0 - Disabled
1 - Change of Status Occurred
BIT 1 - Receive Loss of Signal Interrupt Status
0 - Disabled
1 - Change of Status Occurred
BIT 0 - PRBS / QRSS Random Pattern Interrupt Status
0 - Disabled
1 - Change of Status Occurred
226
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 207: CHANNEL LINE INTERFACE CONTROL REGISTER 2 (CLICR2 0XN007H)
BIT7
BIT6
BIT5
LCNTR_ENB
BIT4
BIT3
Reserved
BIT2
BIT1
BIT0
BYTESEL
UPDATE
RST
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT 7 - Line Code Violation Counter Enable
This bit enables a 16-Bit LCV counter for this particular channel.
0 - Disabled
1 - Enabled
BIT [6:3] - Reserved
BIT 2 - LCV Counter Byte Select
This bit is used to select the High byte or Low byte of the 16-bit LCV value to be stored in register 0xN010.
0 - Lower Byte is Selected (LCV[7:0])
1 - Upper Byte is Selected (LCV[15:8])
BIT 1 - Update Channel LCV Counter
This bit Update this channel’s LCV counter dependent on the BYTESEL bit in this register. Once initiated, if the
BYTESEL bit is set to 0, the Low byte of the LCV Counter values will be updated to register CLICR1. Conversely, if the
BYTESEL bit is set to 1, the High byte of the LCV Counter values will be updated to register CLCR1.
0 - Normal Operation
1 - Update This Channel’s LCV Counter
BIT 0 - Reset Channel LCV Counters
This bit is used to reset the LCV counter for the channel selected. This bit must be set to 1 for at least 1mS.
0 - Normal Operation
1 - Reset This Channel’s LCV Counter
227
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
TABLE 208: CHANNEL LINE INTERFACE CONTROL REGISTER 1 (CLICR1 0XN010H)
BIT7
BIT6
BIT5
BIT4
BIT3
BIT2
BIT1
BIT0
H/L_LCVCOUNT[7:0]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:0] - High Byte/Low Byte of the Line Code Violation Counter [15:0]
These bits reflect the High byte or Low byte of the 16-bit LCV value dependent on the BYTESEL bit in register 0xN007.
If BYTESEL is set to ’0’, then the Low byte is reflected within this register. If BYTESEL is set to ’1’, then the High byte
is reflected within this register.
228
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
229
REV. 1.0.1
XRT86SH221
REV. 1.0.1
6.10
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
E1 Synchronization Framer Register Descriptions (Egress Direction Only)
TABLE 209: CLOCK SELECT REGISTER (CSR 0XN100H)
BIT7
BIT6
BIT5
BIT4
BIT3
BIT2
BIT1
Reserved
BIT0
CSS[1:0]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:2] - Reserved
BIT [1:0] - Clock Source Select
The CSS bits are used to select the source of the Egress transmit clock for the Line Interface.
00 - The recovered received channel input clock is chosen as the transmit clock
01 - The de-mapped channel input clock is chosen as the transmit clock.
10 - The internal master clock derived from the PLL is chosen as the transmit clock
11 - Same as setting 00
230
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 210: FRAMING SELECT REGISTER (FSR 0XN107H)
BIT7
BIT6
BIT5
Reserved
BIT4
BIT3
CAS[1:0]
BIT2
CRC[1:0]
BIT1
BIT0
CKSEQ
FASsel
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:6] - Reserved
BIT [5:4] - CAS Multiframe Alignment Search
These bits enable the search of the CAS multiframe alignment.
00 - No CAS multiframe alignment is enabled.
01 - CAS multiframe alignment algorithm 1 is enabled.
10 - CAS multiframe alignment algorithm 2 (G.732) is enabled.
11 - No CAS multiframe alignment is enabled.
BIT [3:2] - CRC Multiframe Search and Lock
These bits enable the search of the CRC multiframe alignment and set the lock criteria.
00 - No CRC multiframe alignment is enabled.
01 - CRC multiframe alignment is enabled. Alignment is declared if at least one valid CRC multiframe alignment
signals are observed within 8 ms.
10 - CRC multiframe alignment is enabled. Alignment is declared if at least two valid CRC multiframe alignment
signals are observed within 8 ms with the time separating two alignment signals being a multiple of 2 ms.
11 - CRC multiframe alignment is enabled. Alignment is declared if at least three valid CRC multiframe alignment
signals are observed within 8 ms with the time separating two alignment signals being a multiple of 2 ms.
Bit 1 - Frame Check Sequence
This bit enables the frame check sequence in FAS synchronization process.
0 - No check sequence is enabled.
1 - Check sequence is enabled
Bit 0 - FAS Algorithm Select
This bit selects the algorithm for searching FAS frame alignment.
0 - Algorithm 1 is selected (see later section).
1 - Algorithm 2 is selected
231
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
TABLE 211: FRAMING SELECT REGISTER RE-SYNC (FSRRS 0XN10BH)
BIT7
BIT6
RSYNC
BIT5
BIT4
CASC[1:0]
BIT3
BIT2
CRCC[1:0]
BIT1
BIT0
FASC[2:0]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
1
0
0
0
0
1
1
BIT 7 - Force Re-Sync Process, Auto Clear After Synchronization
This bit forces frame to restart synchronization process. This bit is cleared automatically after synchronization has been
reached.
0 - No Re-Sync
1 - Force Re-Sync
BIT [6:5] - CAS Re-Synchronization Criteria
These bits determine the criteria of loss of CAS multiframe alignment.
00 - Two consecutive Multiframe Alignment Signal (MAS) errors.
01 - Three consecutive Multiframe Alignment Signal (MAS) errors.
10 - Four consecutive Multiframe Alignment Signal (MAS) errors.
11 - Eight consecutive Multiframe Alignment Signal (MAS) errors.
BIT [4:3] - CRC Re-Synchronization Criteria
These bits determine the criteria of loss of CRC-4 multiframe alignment.
00 - Declare loss of CRC multiframe alignment if four consecutive CRC multiframe alignment signals have been
received in error.
01 - Declare loss of CRC multiframe alignment if two consecutive CRC multiframe alignment signals have been
received in error.
10 - Declare loss of CRC multiframe alignment if eight consecutive CRC multiframe alignment signals have been
received in error.
11 - Declare loss of CRC multiframe alignment if 915 or more CRC-4 errors have been detecteded in one second.
Bit [2:0] - FAS Re-Synchronization Criteria
These bits represent the number of consecutive errored FAS patterns to cause the declaration of loss of FAS alignment.
Zero is illegal. The default is set to 011b.
232
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 212: FRAME SYNCHRONIZATION REGISTER (CSR 0XN112H)
BIT7
BIT6
BIT5
BIT4
BIT3
E1Sync
BIT2
BIT1
BIT0
Reserved
RO
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT1
BIT0
BIT 7 - E1 Frame Synchronization Detect
This bit is used to monitor E1 frame synchronization.
0 - Indicates that the E1 input data stream is currently experiencing a LOF condition.
1 - Indicates that the E1 input data stream is currently "In-Frame".
BIT [6:0] - Reserved
TABLE 213: SLIP BUFFER CONTROL REGISTER (SBCR 0XN116H)
BIT7
BIT6
BIT5
BIT4
BIT3
BIT2
Reserved
SB_ENB[1:0]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:2] - Reserved
BIT [1:0] - Slip Buffer ENaBle Bits
This bit is used to enable slip buffer.
00, 11 = Buffer is bypassed.
01 = Elastic store (slip buffer) is enabled.
10 = Reserved
233
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
TABLE 214: BLOCK INTERRUPT STATUS REGISTER (BISR 0XNB00H)
BIT7
BIT6
BIT5
BIT4
BIT3
Reserved
BIT2
BIT1
BIT0
VALID
Reserved
E1FRAME
R
R
R
R
R
R
R
R
0
0
0
0
0
0
0
0
BIT2
BIT1
BIT0
VALID_ENB
Reserved
E1FRM_ENB
BIT [7:3] - Reserved
BIT 2 - Valid Alarm Status Interrupt
BIT 1 - Reserved
BIT 0 - E1 Framer Interrupt
TABLE 215: BLOCK INTERRUPT ENABLE REGISTER (BIER 0XNB01H)
BIT7
BIT6
BIT5
BIT4
BIT3
Reserved
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:3] - Reserved
BIT 2 - Valid Alarm Status Enable
BIT 1 - Reserved
BIT 0 - E1 Framer Interrupt Enable
234
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 216: ALARM AND ERROR STATUS REGISTER (AESR 0XNB02H)
BIT7
BIT6
RxLOF_state
BIT5
Reserved
BIT4
BIT3
BIT2
LOS
BPV
RxLOF
BIT1
BIT0
Reserved
RO
RO
RO
RO
RO
RUR/WC
RUR/WC
RUR/WC
0
0
0
0
0
0
0
0
BIT 7 - LOF Alarm State
This bit is used to indicate that a loss of frame alignment has occurred.
0 - No red alarm occurs.
1 - Red alarm occurs.
BIT [6:5] - Reserved
BIT 4 - LOS State Change
This bits indicates the change of LOS defect (DEFDET=1).
0 - No state change of Loss of Signal.
1 - The state of Loss of Signal alarm has changed.
BIT 3 - BPV State Change
This bits indicates the change of BPV defect (DEFDET=1).
0 - No state change of Bi-Polar Violation alarm is recorded.
1 - The state of Bi-Polar Violation alarm has changed.
BIT 2 - LOF State Change
This bits indicates the change of LOF defect (DEFDET=1) or Red alarm (DEFDET=0) state.
0 - No state change of Red alarm is recorded.
1 - The state of Red alarm has changed.
BIT [1:0] - Reserved
235
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
TABLE 217: ALARM AND ERROR INTERRUPT ENABLE REGISTER (AEIER 0XNB03H)
BIT7
BIT6
BIT5
Reserved
BIT4
BIT3
BIT2
LOS_ENB
BPV_ENB
RxRED_ENB
BIT1
BIT0
Reserved
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:5] - Reserved
BIT 4 - Loss of Signal State Change Interrupt Enable
Setting this bit will enable the interrupt generation when the change state of LOS has been detected.
0 = Disables the interrupt generation of loss of signal detection.
1 = Enables the interrupt generation of loss of signal detection.
BIT 3 - Bi-Polar Violation State Change Interrupt Enable
Setting this bit will enable the interrupt generation when the change state of BPV has been detected.
0 = Disables the interrupt generation of Bi-Polar Violation detection.
1 = Enables the interrupt generation of Bi-Polar Violation detection.
BIT 2 - Red Alarm State Change Interrupt Enable
Setting this bit will enable the interrupt generation when the change state of red alarm has been detected.
0 = Disables the interrupt generation of loss of frame detection.
1 = Enables the interrupt generation of loss of frame detection.
BIT [1:0] - Reserved
236
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 218: FRAMER INTERRUPT STATUS REGISTER (FISR 0XNB04H)
BIT7
BIT6
COMFA
BIT5
Reserved
BIT4
BIT3
BIT2
BIT1
BIT0
COFA
IF
FMD
SE
FE
RUR/WC
RUR/WC
RUR/WC
RUR/WC
RUR/WC
RUR/WC
RUR/WC
RUR/WC
0
0
0
0
0
0
0
0
BIT 7 - Change of CAS Multiframe Alignment
This bit is used to indicate that the receive synchronization signal has changed CAS multiframe alignment with respect
to its last multiframe position.
0 - No COMFA occurs.
1 - COMFA occurs.
BITS [6:5] - Reserved
BIT 4 - Change of Frame Alignment
This bit is used to indicate that the receive synchronization signal has changed alignment with respect to its last
multiframe position.
0 - No COFA occurs.
1 - COFA occurs.
BIT 3 - In-Frame State
This bit indicates the occurrence of state change of in-frame indication.
0 - No state change occurs of in-frame indication.
1 - In-frame indication has changed state.
BIT 2 - Frame Mimic State Change
This bit indicates the occurrence of state change of framing mimic detection.
0 - No state change occurs of framing mimic detection.
1 - Framing mimic detection has changed state.
BIT 1 - Synchronization Bit Error
This bit indicates the occurrence of synchronization bit error event.
0 - No synchronization bit error occurs.
1 - Synchronization bit error occurs.
BIT 0 - Framing Error
• This bit is used to indicate that one or more frame alignment bit error have occurred. This bit doesn't not necessarily
indicate that synchronization has been lost.
0 - No framing bit error occurs.
1 - Framing bit error occurs.
237
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
TABLE 219: FRAMER INTERRUPT ENABLE REGISTER (FIER 0XNB05H)
BIT7
BIT6
COMFA_ENB
BIT5
Reserved
BIT4
BIT3
BIT2
BIT1
BIT0
COFA_ENB
IF_ENB
FMD_ENB
SE_ENB
FE_ENB
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT 7 - Change of CAS Frame Alignment Interrupt Enable
Setting this bit will enable the interrupt generation when the frame search logic determines that CAS multiframe
alignment has been reached and that the new alignment differs from the previous alignment.
0 - Disables the interrupt generation of COMFA detection.
1 - Enables the interrupt generation of COMFA detection.
BITS [6:5] - Reserved
BIT 4 - Change of Frame Alignment Interrupt Enable
Setting this bit will enable the interrupt generation when the frame search logic determines that frame alignment has
been reached and that the new alignment differs from the previous alignment.
0 - Disables the interrupt generation of COFA detection.
1 - Enables the interrupt generation of COFA detection.
BIT 3 - In-Frame Interrupt Enable
Setting this bit will enable the interrupt generation of an in-frame recognition.
0 - Disables the interrupt generation of an in-frame detection.
1 - Enables the interrupt generation of an in-frame detection.
BIT 2 - Frame Mimic Detection Interrupt Enable
Setting this bit will enable the interrupt generation when the frame search logic detects the presence of framing bit
mimics.
0 - Disables the interrupt generation of framing mimic detection.
1 - Enables the interrupt generation of framing mimic detection.
BIT 1 - Synchronization Bit Error Interrupt Enable
SE_ENB : Setting this bit will enable the generation of an interrupt when a synchronization bit error event has been
detected. A synchronization bit error event is defined as CRC-4 error.
0 - The detection of synchronization bit errors does not generate an interrupt.
1 - The detection of synchronization bit errors does generate an interrupt
BIT 0 - Framing Error Interrupt Enable
This bits enables the generation of an interrupt when a framing bit error has been detected.
0 - Any error in the framing bits does not generate an interrupt.
1 - A error in the framing bits does generate an interrupt.
238
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 220: SLIP BUFFER STATUS REGISTER (SBSR 0XNB08H)
BIT7
BIT6
BIT5
BIT4
BIT3
Reserved
BIT2
BIT1
BIT0
SB_FULL
SB_EMPTY
SB_SLIP
RUR/WC
RUR/WC
RUR/WC
RUR/WC
RUR/WC
RUR/WC
RUR/WC
RUR/WC
0
0
0
0
0
0
0
0
BIT [7:3] - Reserved
BIT 2 - Slip Buffer Fills & a Frame is Deleted
This bit is set when the elastic store fills and a frame is deleted.
BIT 1 - Slip Buffer Empties and a Frame is Repeated
This bit is set when the elastic store empties and a frame is repeated.
BIT 0 - Receive Slips
This bit is set when the slip buffer slips.
TABLE 221: SLIP BUFFER INTERRUPT ENABLE REGISTER (SBIER 0XNB09H)
BIT7
BIT6
BIT5
BIT4
BIT3
Reserved
BIT2
BIT1
BIT0
SB_FULL
SB_EMPTY
SB_SLIP
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:3] - Reserved
BIT 2 - Interrupt Enable Bit for Slip Buffer Full
Setting this bit enables interrupt when the elastic store fills and a frame is deleted.
BIT 1 - Interrupt Enable Bit for Slip Buffer Empty
Setting this bit enables interrupt when the elastic store empties and a frame is repeated.
BIT 0 - Interrupt Enable Bit for Slip Buffer Slip
Setting this bit enables interrupt when the slip buffer slips.
239
XRT86SH221
REV. 1.0.1
6.11
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
VT Mapping Operation Control Register Descriptions
TABLE 222: GLOBAL VT-MAPPER BLOCK - J2 SELECT REGISTER (J2SEL = 0X0C02)
BIT7
BIT6
BIT 5
BIT 4
Reserved
BIT 3
BIT 2
BIT 1
VT Group[2:0]
BIT 0
VT Channel[1:0]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
This register is used to select which of the 21 channels will transmit and receive the J2 byte trace buffer. Only one channel
can be selected at a time.
BIT [7:5] - Reserved
BIT [4:2] - J2 Select - VT Group Number
These bits are used to select the VT group number which will be applied to the J2 trace buffer.
000 - VT Group #0
001 - VT Group #1
010 - VT Group #2
011 - VT Group #3
100 - VT Group #4
101 - VT Group #5
110 - VT Group #6
111 - Unused
BIT [4:2] - J2 Select - VT Channel Number
These bits are used to select the VT channel number which will be applied to the J2 trace buffer.
00 - Channel 0
01 - Channel 1
10 - Channel 2
11 - Unused
240
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 223: GLOBAL VT-MAPPER BLOCK - VT MAPPER BLOCK CONTROL REGISTER (VTMCR = 0X0C03)
BIT7
BIT6
BIT 5
BIT 4
Reserved
BIT 3
BIT 2
Latch Count
REI-V
Enable
BIT 1
BIT 0
VT-Mapper Local Loopback
[1:0]
R/O
R/O
R/O
R/O
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:4] - Reserved
BIT 3 - Latch Count
A "0 to 1" transition within this bit-field commands each of the VT-De-Mapper blocks to update the contents within the
following Bit-Fields/PMON registers.
BIT FIELDS
REGISTER NAME
ADDRESS
LOCATION
VT-Payload Pointer Increment Count[3:0]
Channel Control VT Mapper Block - Egress
Direction - BIP-2 Error Count Register - Byte 1"
0xND4A
BIP-2 Error Count[11:8]
Channel Control VT Mapper Block - Egress
Direction - BIP-2 Error Count Register - Byte 1"
0xND4A
BIP-2 Error Count[7:0]
Channel Control VT Mapper Block - Egress
Direction - BIP-2 Error Count Register - Byte 0
0xND4B
VT-Payload Pointer Decrement Count[3:0]
Channel Control - VT Mapper Block - Egress
Direction - REI-V Event Count Register - Byte 1
0xND4E
REI-V Event Count[11:8]
Channel Control - VT Mapper Block - Egress
Direction - REI-V Event Count Register - Byte 1
0xND4E
REI-V Event Count[7:0]
Channel Control - VT Mapper Block - Egress
Direction - REI-V Event Count Register - Byte 0
0xND4F
BIT 2 - REI-V Enable
This READ/WRITE bit-field is used to configure a given Transmit VT-Mapper block to automatically insert the
appropriate REI-V value (based upon the number of BIP-8 bit errors that are detected by the corresponding Receive
VT-Mapper block) into the V5 byte, within its outbound VC-12 data-stream.
0 - Configures the Transmit VT-Mapper block to NOT automatically insert the REI-V value into each V5 byte, within
the outbound VC-12 data-stream.
1 - Configures the Transmit VT-Mapper block to automatically insert the REI-V value into each V5 byte, within the
outbound VC-12 data-stream.
241
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
BIT [1:0] - VT Mapper Local Loopback:
This READ/WRITE bit-field permits the user to configure the XRT86SH221 device to operate in the "VT Mapper Local
Loopback" Mode. If the user configures the XRT86SH221 device to operate in this mode, then the output from the VTMapper block will be internally looped back into the input of the VT-De-Mapper block.
VT MAPPER LOCAL
LOOPBACK [1:0]
VT MAPPER LOCAL LOOPBACK TYPE
00
No Loopback
01
Local Timing VT Mapper Local Loopback Mode:
The VT Mapper Block output data stream along with the external source
signals TXCLK, TXBYTE_EN, and TXSOS are internally looped-back into
the input of the VT DeMapper Block.
10
Undefined
11
Undefined
TABLE 224: GLOBAL VT MAPPER BLOCK - TEST PATTERN CONTROL REGISTER 1 (VTMTPCR1 = 0X0C0E)
BIT7
BIT6
BIT 5
BIT 4
Latch Error
Count
Insert Pattern Error
R/W
R/W
R/O
R/O
0
0
0
0
BIT 3
BIT 2
BIT 1
BIT 0
R/O
R/O
R/O
R/O
0
0
0
0
Reserved
BIT 7 - Latch Error Count
A 0 to 1 transition within this bit-field commands the Test Pattern Receiver to latch its current Bit Error Count into Bits 6
- 0 (Test Pattern Error Count[14:8]) and BIT [7:0] (Test Pattern Error Count[7:0]) within the VT Mapper - Test Pattern
Detector Error Count Register (Address Locations = 0x0C16 and 0x0C17).
BIT 6 - Insert Pattern Error
This bit-field is used to configure the VT-Mapper Test Pattern Generator block to insert a single bit-error into the
outbound VT data-stream. A 0 to 1 transition within this bit-field will command the VT-Mapper Test Pattern Generator
block to insert a single bit-error into the outbound VT data-stream.
Bits [5:0] - Reserved
242
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 225: GLOBAL VT-MAPPER BLOCK - TEST PATTERN CONTROL REGISTER 0 (VTMTPCR0 = 0X0C0F)
BIT7
BIT6
Reserved
BIT 5
BIT 4
BIT 3
BIT 2
VC-12 Transmit Test Pattern[1:0]
BIT 1
BIT 0
Reserved
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:6] - Reserved
BIT [5:4] - VT2 Transmit Test Pattern[1:0]
This READ/WRITE bit-field is used to specify the test pattern that the VT2 Test Pattern Generator will generate and
transmit.
Transmitted Test Pattern
VC-12 TRANSMIT TEST
PATTERN[1:0]
TEST PATTERN TRANSMITTED
00
All Zeros Pattern
01
All Ones Pattern
10
Repeating 1010… Pattern
11
2^15-1 PRBS Pattern
BIT [3:0] - Reserved
243
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
TABLE 226: GLOBAL VT-DEMAPPER BLOCK - TEST PATTERN DROP REGISTER 0 (VTDTPDR0 = 0X0C13)
BIT7
BIT6
BIT 5
Receive (Expected) Pattern[1:0]
BIT 4
BIT 3
Test Channel
Drop Side - SDH
BIT 2
BIT 1
BIT 0
Test Channel Drop Side[4:0]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:6] - Receive (Expected) Pattern:
This READ/WRITE bit-field is used to specify the Test Pattern, that the VT-Mapper Pattern Receiver should be
expecting, as shown in the table below.
Expected Test Pattern
RECEIVE (EXPECTED)
PATTERN[1:0]
EXPECTED TEST PATTERN
00
All Zeros Pattern
01
All Ones Pattern
10
Repeating 1010… Pattern
11
215-1 PRBS Pattern
BIT 5 - Test Channel Drop-Side SDH
This READ/WRITE bit-field is used to select which set of E1 traffic should be used, as a basis of comparison against
the Test Signal. In this case, the user can either select the either the E1 traffic originating from the Ingress Direction E1
Blocks or the E1 traffic originating from the Receive SDH Blocks.
0 - Configures the Pattern Receiver to compare the Test Signal with one of the E1 Channels, originating from the
Ingress Direction E1 Blocks.
1 - Configures the Pattern Receiver to compare the Test Signal with one of the E1 Channels, originating from the
Receive SDH Blocks.
BIT [4:0] - Test Channel Drop Side[4:0]:
These READ/WRITE bit-fields are used to select which data-stream will be compared with the Test Signal.
Test Channel Selection
TEST CHANNEL DROP SIDE[4:0]
TEST CHANNEL USED
00000
Unequipped
00001
E1 Channel 1
00010
E1 Channel 2
00011
E1 Channel 3
00100
Reserved
00101
E1 Channel 4
00110
E1 Channel 5
00111
E1 Channel 6
01000
Reserved
244
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
Test Channel Selection
TEST CHANNEL DROP SIDE[4:0]
TEST CHANNEL USED
01001
E1 Channel 7
01010
E1 Channel 8
01011
E1 Channel 9
01100
Reserved
01101
E1 Channel 10
01110
E1 Channel 11
01111
E1 Channel 12
10000
Reserved
10001
E1 Channel 13
10010
E1 Channel 14
10011
E1 Channel 15
10100
Reserved
10101
E1 Channel 16
10110
E1 Channel 17
10111
E1 Channel 18
11000
Reserved
11001
E1 Channel 19
11010
E1 Channel 20
11011
E1 Channel 21
11100
Reserved
11101
AIS will be Generated
11110
Test Channel Input
11111
Disable Pattern Receiver
245
REV. 1.0.1
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
TABLE 227: GLOBAL VT-DEMAPPER - TEST PATTERN DETECTOR ERROR COUNT REGISTER 1 (VTDTPDECR1 =
0X0C16)
BIT7
BIT6
BIT 5
VT-Mapper
Test Pattern
Sync
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
Test Pattern Error Count[14:8]
R/O
RUR
RUR
RUR
RUR
RUR
RUR
RUR
0
0
0
0
0
0
0
0
BIT 7 - VT-Mapper Test Pattern Sync:
This READ-ONLY bit-field indicates whether or not the VT-Mapper Pattern Receiver is currently declaring Pattern Sync
with the incoming Test Signal.
0 - VT-Mapper Pattern Receiver is NOT currently declaring Pattern Sync with the incoming Test Signal.
1 - VT-Mapper Pattern Receiver is currently declaring Pattern Sync with the incoming Test Signal.
BIT [6:0] - Test Pattern Error Count[14:8]:
These seven (7) RESET-upon-READ bit-fields, along with the Test Pattern Error Count[7:0] bit-fields function as a 15bit Pattern Bit Error Count Register. If the VT-Mapper Pattern Receiver is currently declaring Pattern Sync with the
designated Test Signal, then it will increment this register (by the value of 1) each time that it detects Pattern Bit Error.
These seven (7) bit-fields function as the seven most-significant bits of this 15-bit counter.
TABLE 228: GLOBAL VT-DEMAPPER - TEST PATTERN DETECTOR ERROR COUNT REGISTER 0 (VTDTPDECR0 =
0X0C17)
BIT7
BIT6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
Test Pattern Error Count[7:0]
RUR
RUR
RUR
RUR
RUR
RUR
RUR
RUR
0
0
0
0
0
0
0
0
BIT [7:0] - Test Pattern Error Count[7:0]:
These eight (8) RESET-upon-READ bit-fields, along with the Test Pattern Error Count[14:8] bit-fields function as a 15bit Pattern Bit Error Count Register. If the VT-Mapper Pattern Receiver is currently declaring Pattern Sync with the
designated Test Signal, then it will increment this register (by the value of 1) each time that it detects Pattern Bit Error.
These eight (8) bit-fields function as the eight least-significant bits of this 15-bit counter.
246
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 229: GLOBAL VT-MAPPER - TRANSMIT TRIBUTARY SIZE SELECT REGISTER 1 (VTMTTSSR1 = 0X0C1A)
BIT7
BIT6
Reserved
BIT 5
BIT 4
BIT 3
TxTributary Size Select VT#6[1:0]
BIT 2
TxTributary Size Select VT#5[1:0]
BIT 1
BIT 0
TxTributary Size Select VT#4[1:0]
R/O
R/O
R/W
R/W
R/W
R/W
R/W
R/W
0
0
1
1
1
1
1
1
BIT [7:6] - Reserved:
BIT [5:4] - Transmit Tributary Size Select for VT# 6[1:0]:
These two READ/WRITE bit-fields are used to specify the VT-size (or the bit-rate to be supported by) that the Transmit
VT-Mapper block (associated with Virtual Tributary Group # 6) will support.
Size of VT #6
TXTRIBUTARY SIZE
SELECT - VT#6[1:0]
RESULTING SIZE OF VT # 6
00
Reerved
01
Reserved
10
VC-12
11
Reserved
NOTE: This configuration setting only applies to the Transmit VT-Mapper block. This configuration setting does not
configure the Receive VT-De-Mapper block to expect any particular VT-type within VT Group # 6. The user
must separately configure the Receive VT-De-Mapper block's handling of VT-Group # 6 by setting Bits 4 and 5
(RxTributary Size Select - VT# 6[1:0]) within the VT-Mapper - Receive Tributary Size Select Register (Address =
0x0C1E).
BIT [3:2] - Transmit Tributary Size Select for VT# 5[1:0]:
These two READ/WRITE bit-fields are used to specify the VT-size (or the bit-rate to be supported by) that the Transmit
VT-Mapper block (associated with Virtual Tributary Group # 5) will support.
Size of VT #5
TXTRIBUTARY SIZE
SELECT - VT#5[1:0]
RESULTING SIZE OF VT # 5
00
Reerved
01
Reserved
10
VC-12
11
Reserved
247
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
BIT [1:0] - Transmit Tributary Size Select for VT# 4[1:0]:
These two READ/WRITE bit-fields are used to specify the VT-size (or the bit-rate to be supported by) that the Transmit
VT-Mapper block (associated with Virtual Tributary Group # 4), will support.
Size of VT #4
TXTRIBUTARY SIZE SELECT
- VT#4[1:0]
RESULTING SIZE OF VT # 4
00
Reerved
01
Reserved
10
VC-12
11
Reserved
248
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 230: GLOBAL VT-MAPPER - TRANSMIT TRIBUTARY SIZE SELECT REGISTER 0 (VTMTTSSR0 = 0X0C1B)
BIT7
BIT6
BIT 5
TxTributary Size Select VT#3[1:0]
BIT 4
BIT 3
TxTributary Size Select VT#2[1:0]
BIT 2
TxTributary Size Select VT#1[1:0]
BIT 1
BIT 0
TxTributary Size Select VT#0[1:0]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
1
1
1
1
1
1
1
1
BIT [7:6] - Transmit Tributary Size Select for VT# 3[1:0]:
These two READ/WRITE bit-fields are used to specify the VT-size (or the bit-rate to be supported by) that the Transmit
VT-Mapper block (associated with Virtual Tributary Group # 3), will support.
TxTributary Size Select of VT#3
TXTRIBUTARY SIZE SELECT
- VT#3[1:0]
RESULTING SIZE OF VT # 3
00
Reerved
01
Reserved
10
VC-12
11
Reserved
BIT [5:4] - Transmit Tributary Size Select for VT# 2[1:0]:
These two READ/WRITE bit-fields are used to specify the VT-size (or the bit-rate to be supported by) that the Transmit
VT-Mapper block (associated with Virtual Tributary Group # 2) will support.
TxTributary Size Select of VT#2
TXTRIBUTARY SIZE
SELECT - VT#2[1:0]
RESULTING SIZE OF VT # 2
00
Reerved
01
Reserved
10
VC-12
11
Reserved
BIT [3:2] - Transmit Tributary Size Select for VT# 1[1:0]:
These two READ/WRITE bit-fields are used to specify the VT-size (or the bit-rate to be supported by) that the Transmit
VT-Mapper block (associated with Virtual Tributary Group # 1) will support.
TxTributary Size Select of VT#1
TXTRIBUTARY SIZE
SELECT - VT#1[1:0]
RESULTING SIZE OF VT # 1
00
Reerved
01
Reserved
10
VC-12
11
Reserved
249
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
BIT [1:0] - Transmit Tributary Size Select for VT# 0[1:0]:
These two READ/WRITE bit-fields are used to specify the VT-size (or the bit-rate to be supported by) that the Transmit
VT-Mapper Block (associated with Virtual Tributary Group # 0) will support.
TxTributary Size Select of VT#0
TXTRIBUTARY SIZE
SELECT - VT#0[1:0]
RESULTING SIZE OF VT # 0
00
Reerved
01
Reserved
10
VC-12
11
Reserved
250
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 231: GLOBAL VT-DEMAPPER - RECEIVE TRIBUTARY SIZE SELECT REGISTER 1 (VTDRTSSR1 = 0X0C1E)
BIT7
BIT6
Reserved
BIT 5
BIT 4
BIT 3
RxTributary Size Select VT#6[1:0]
BIT 2
RxTributary Size Select VT#5[1:0]
BIT 1
BIT 0
RxTributary Size Select VT#4[1:0]
R/O
R/O
R/W
R/W
R/W
R/W
R/W
R/W
0
0
1
1
1
1
1
1
BIT [7:6] - Reserved:
BIT [5:4] - Receive Tributary Size Select for VT# 6[1:0]:
These two READ/WRITE bit-fields are used to specify the VT-size (or the bit-rate to be supported by) that the Receive
VT-Mapper Block (associated with Virtual Tributary Group # 6) will support.
Resulting Size of VT#6
RXTRIBUTARY SIZE
SELECT - VT#6[1:0]
RESULTING SIZE OF VT # 6
00
Reerved
01
Reserved
10
VC-12
11
Reserved
BIT [3:2] - Receive Tributary Size Select for VT# 5[1:0]:
These two READ/WRITE bit-fields are used to specify the VT-size (or the bit-rate to be supported by) that the Receive
VT-Mapper block (associated with Virtual Tributary Group # 5) will support.
Resulting Size of VT#5
RXTRIBUTARY SIZE
SELECT - VT#5[1:0]
RESULTING SIZE OF VT # 5
00
Reerved
01
Reserved
10
VC-12
11
Reserved
BIT [1:0] - Receive Tributary Size Select for VT# 4[1:0]:
These two READ/WRITE bit-fields are used to specify the VT-size (or the bit-rate to be supported by) that the Receive
VT-Mapper block (associated with Virtual Tributary Group # 4) will support.
Resulting Size of VT#4
RXTRIBUTARY SIZE
SELECT - VT#4[1:0]
RESULTING SIZE OF VT # 4
00
Reerved
01
Reserved
10
VC-12
11
Reserved
251
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
TABLE 232: GLOBAL VT-DEMAPPER - RECEIVE TRIBUTARY SIZE SELECT REGISTER 0 (VTDRTSSR0 = 0X0C1F)
BIT7
BIT6
RxTributary Size Select VT#3[1:0]
BIT 5
BIT 4
BIT 3
RxTributary Size Select VT#2[1:0]
BIT 2
RxTributary Size Select VT#1[1:0]
BIT 1
BIT 0
RxTributary Size Select VT#0[1:0]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
1
1
1
1
1
1
1
1
BIT [7:6] - Receive Tributary Size Select for VT# 3[1:0]:
These two READ/WRITE bit-fields are used to specify the VT-size (or the bit-rate to be supported by) that the Receive
VT-Mapper block (associated with Virtual Tributary Group # 3) will support.
Resulting Size of VT#3
RXTRIBUTARY SIZE
SELECT - VT#3[1:0]
RESULTING SIZE OF VT # 3
00
Reerved
01
Reserved
10
VC-12
11
Reserved
BIT [5:4] - Receive Tributary Size Select for VT# 2[1:0]:
These two READ/WRITE bit-fields are used to specify the VT-size (or the bit-rate to be supported by) that the Receive
VT-Mapper block (associated with Virtual Tributary Group # 2) will support.
Resulting Size of VT#2
RXTRIBUTARY SIZE
SELECT - VT#2[1:0]
RESULTING SIZE OF VT # 2
00
Reerved
01
Reserved
10
VC-12
11
Reserved
BIT [3:2] - Receive Tributary Size Select for VT# 1[1:0]:
These two READ/WRITE bit-fields are used to specify the VT-size (or the bit-rate to be supported by) that the Receive
VT-Mapper block (associated with Virtual Tributary Group # 1) will support.
Resulting Size of VT#1
RXTRIBUTARY SIZE SELECT
- VT#1[1:0]
RESULTING SIZE OF VT # 1
00
Reerved
01
Reserved
10
VC-12
11
Reserved
252
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
BIT [1:0] - Receive Tributary Size Select for VT# 0[1:0]:
These two READ/WRITE bit-fields are used to specify the VT-size (or the bit-rate to be supported by) that the Receive
VT-Mapper block (associated with Virtual Tributary Group # 0) will support.
Resulting Size of VT#0
RXTRIBUTARY SIZE SELECT
- VT#0[1:0]
RESULTING SIZE OF VT # 0
00
Reerved
01
Reserved
10
VC-12
11
Reserved
253
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
TABLE 233: CHANNEL CONTROL - VT-MAPPER E1 INSERTION CONTROL REGISTER 1 (VTME1ICR1 = 0XND42)
BIT7
BIT6
BIT 5
BIT 4
BIT 3
Ingress
Direction E1
AIS Defect
Declared
Reserved
BIP-2 Error
Insert
R/O
R/O
R/W
R/W
R/W
0
0
0
0
0
BIT 2
BIT 1
BIT 0
Auto
Transmit
RFI-V
Indicator
Auto
Transmit
RDI-V
Indicator
R/W
R/W
R/W
0
0
0
VT Signal Label[2:0]
BIT 7 - Receive (Ingress Direction) E1 AIS Defect Declared:
This READ/WRITE bit-field indicates whether or not the corresponding E1 signal (that is being handled by this Transmit
VT-Mapper block) is transporting the AIS indicator.
0 - Indicates that the Ingress Direction E1 signal is NOT currently transporting the AIS indicator.
1 - Indicates that the Ingress Direction E1 signal is currently transporting the AIS indicator.
BIT 6 - Reserved
BIT 5 - BIP-2 Error Insert into V5
This READ/WRITE bit-field is used to configure the corresponding Transmit VT-Mapper block to transmit erred BIP-2
bits to the remote terminal equipment. If the user invokes this feature, then the Transmit VT-Mapper block will
automatically invert the value of the locally-computed BIP-2 bits, prior to transmitting this data to the remote terminal
equipment.
0 - Configures the Transmit VT-Mapper block to NOT transmit erred BIP-2 bits to the remote terminal equipment.
1 - Configures the Transmit VT-Mapper block to transmit erred BIP-2 bits to the remote terminal equipment.
NOTE: For normal operation, the user should set this bit-field to 0.
BIT [4:2] - VT Label[2:0]:
These two READ/WRITE bit-fields are used to set the VT Label bit-fields (within each outbound V5 byte) the value of
the users choice.
BIT 1 - Auto Transmit RFI-V Indicator
This READ/WRITE bit-field is used to select the source of the RFI-V bit-field, within the V5 byte of each outbound VC12 traffic.
0 - Configures the Transmit VT-Mapper Block to use the on-chip register as the source of the RFI-V bit-field.
1 - Configures the Transmit VT-Mapper block to set the RFI-V bit-fields to the appropriate value, based upon any
defects that the corresponding Receive VT-Mapper block is currently declaring.
254
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
BIT 0 - Auto Transmit RDI-V Indicator
This READ/WRITE bit-field is used to select the source of the RDI-V bit-field, within the V5 byte of each outbound VT2
traffic. The Transmit VT-Mapper block will set the RDI-V bit-fields to the appropriate value, based upon any defect
conditions that are currently being declared by the corresponding Receive VT-Mapper block.
0 - Configures the Transmit VT-Mapper Block to use the on-chip register as the source of the RDI-V bit-field.
1 - Configures the Transmit VT-Mapper block to set the RDI-V bit-fields to the appropriate value, based upon any
defects that the corresponding Receive VT-Mapper block is currently declaring.
255
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 234: CHANNEL CONTROL - VT-MAPPER E1 INSERTION CONTROL REGISTER 0 (VTME1ICR0 = 0XND43)
BIT7
BIT6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
Transmit
RFI-V Value
Transmit
RDI-V Value
Transmit AIS-V
Indicator
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
E1 Cross Connect Channel Select_Ingress Direction[4:0]
BIT 7 - Transmit RFI-V Value:
This READ/WRITE bit-field is used to exercise Software Control over the state of the RFI-V bit-field (within each V5
byte) of the outbound VT data-stream. If the user sets BIT 1 (Auto Transmit RFI-V Indicator), within the VT-Mapper
Block - Ingress Direction - E1 Insertion Control Register - 2 to 0, then the Transmit VT-Mapper block will read out the
contents within this bit-field, and it will load this value into the RFI-V bit-field within each V5 byte of the outbound VTdata-stream.
NOTE: This bit-field is ignored if the user sets Bit 1 (Auto Transmit RFI-V Indicator), within the VT Mapper Block Ingress Direction - E1 Insertion Control Register - 1 to 1.
BIT 6 - Transmit RDI-V Value:
This READ/WRITE bit-field is used to exercise Software Control over the state of the RDI-V bit-field (within each V5
byte) of the outbound VT data-stream. If the user sets BIT 0 (Auto Transmit RDI-V Indicator), within the VT-Mapper
Block - Ingress Direction - E1 Insertion Control Register - 2 to 0, then the Transmit VT-Mapper block will read out the
contents within this bit-field, and it will load this value into the RDI-V bit-field within each V5 byte of the outbound VTdata-stream.
NOTE: This bit-field is ignored if the user sets Bit 0 (Auto Transmit RDI-V Indicator), within the VT Mapper Block Ingress Direction - E1 Insertion Control Register - 1 to 1.
BIT 5 - Transmit AIS-V Indicator
This READ/WRITE bit-field is used to command the Transmit VT-Mappper block to transmit the AIS-V indicator (within
the corresponding VT2) within the outbound VT-data-stream.
0 - Configures the Transmit VT-Mapper block to NOT transmit the AIS-V indicator within the outbound VT-data-stream.
1 - Configures the Transmit VT-Mapper block to transmit the AIS-V indicator within the outbound VT-data-stream.
BIT [4:0] - E1 (Cross-Connect) Channel Select[4:0]:
These READ/WRITE bit-fields is used to configure the Internal VT-Cross Connect. More specifically, these READ/
WRITE bit-fields are used to select which (of the 21 Ingress Direction) E1 signals to be mapped into either a VT2 by
this particular Transmit VT-Mapper block. The following table presents the relationship between the settings of these
bit-fields and the resulting Cross Connect Configuration.
Cross Connect Configuration
E1 (CROSS-CONNECT)
CHANNEL SELECT[4:0]
RESULTING INGRESS DIRECTION E1
CHANNEL BEING HANDLED BY THIS
PARTICULAR TRANSMIT VT-MAPPER BLOCK
00000
Unequipped
00001
Ingress Direction E1 Channel 1
00010
Ingress Direction E1 Channel 2
00011
Ingress Direction E1 Channel 3
00100
Reserved
00101
Ingress Direction E1 Channel 4
00110
Ingress Direction E1 Channel 5
COMMENTS
This particular VT will be transmitted as an
Un-equipped signal
256
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
Cross Connect Configuration
E1 (CROSS-CONNECT)
CHANNEL SELECT[4:0]
RESULTING INGRESS DIRECTION E1
CHANNEL BEING HANDLED BY THIS
PARTICULAR TRANSMIT VT-MAPPER BLOCK
00111
Ingress Direction E1 Channel 6
01000
Reserved
01001
Ingress Direction E1 Channel 7
01010
Ingress Direction E1 Channel 8
01011
Ingress Direction E1 Channel 9
01100
Reserved
01101
Ingress Direction E1 Channel 10
01110
Ingress Direction E1 Channel 11
01111
Ingress Direction E1 Channel 12
10000
Reserved
10001
Ingress Direction E1 Channel 13
10010
Ingress Direction E1 Channel 14
10011
Ingress Direction E1 Channel 15
10100
Reserved
10101
Ingress Direction E1 Channel 16
10110
Ingress Direction E1 Channel 17
10111
Ingress Direction E1 Channel 18
11000
Reserved
11001
Ingress Direction E1 Channel 19
11010
Ingress Direction E1 Channel 20
11011
Ingress Direction E1 Channel 21
11100
Reserved
11101
NONE
11110
The Test Channel
11111
Test Pattern - From VT Pattern Generator
257
COMMENTS
REV. 1.0.1
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
TABLE 235: CHANNEL CONTROL - VT-DEMAPPER E1 DROP CONTROL REGISTER 3 (VTDE1DCR3 = 0XND44)
BIT7
BIT6
BIT 5
BIT 4
BIT 3
RDI-V Accepted Value[3:0]
BIT 2
BIT 1
BIT 0
RDI-V Accept Threshold[3:0]
R/O
R/O
R/O
R/O
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:4] - RDI-V Accepted Value[3:0]:
These READ-ONLY bit-fields reflect the most recently value for RDI-V that has been accepted (or validated) by the
Receive VT-Mapper Block. The Receive VT-Mapper block will accept (or validate) a given RDI-V value, once it has
received this same RDI-V value, within RDI-V_Accept_Threshold[3:0] number of consecutive, incoming VT Multiframes.
NOTES:
1. These bit-fields are only active if the user has configured the Receive VT-De-Mapper block to support
ERDI-V (Enhanced RDI-V).
2. These bit-fields reflect the four-bit RDI-V value that the VT De-Mapper block has accepted via the K4
bytes within the incoming VT/TU data-stream.
BIT [3:0] - RDI-V Accept Threshold[3:0]:
These READ/WRITE bit-fields are used to define the RDI-V Validation criteria for the Receive VT-Mapper block. More
specifically, these bit-fields are used to specify the number of consecutive, incoming VT Multi-frame, in which the
Receive VT-Mapper block MUST receive a given RDI-V value BEFORE it validates it and loads it into BIT[7:4] (RDI-V
Accepted Value[3:0]).
TABLE 236: CHANNEL CONTROL - VT-DEMAPPER E1 DROP CONTROL REGISTER 2 (VTDE1DCR2 = 0XND45)
BIT7
BIT6
BIT 5
BIT 4
Reserved
BIT 3
BIT 2
BIT 1
Reserved
BIT 0
RDI-V Type
R/O
R/O
R/O
R/O
R/O
R/O
R/O
R/W
0
0
0
0
0
0
0
0
BIT 7 - Reserved:
BIT [6:1] - Unused:
BIT 0 - RDI-V Type:
This READ/WRITE bit-field is used to configure the VT-De-Mapper blocks (associated with a given channel) to support
either the SRDI-V (Single Bit - RDI-V) or ERDI-V (Extended - RDI-V) form of signaling. If the user uses only Single-Bit
RDI-V, then the RDI-V indicator will only be transported via Bit 0 (RDI-V) within the V5 byte in a VT-data-stream.
Conversely, if a user uses Extended RDI-V, then the RDI-V indicator will be transported via both Bits 0 (RDI-V) within
the V5 byte, and Bits 3, 2 and 1 within the Z7/K4 byte.
0 - Configures the VT-De-Mapper blocks to use the SRDI-V form of Signaling.
1 - Configures the VT-De-Mapper blocks to use the ERDI-V form of signaling.
NOTE: This configuration setting only applies to the VT-De-Mapper block. If the user wishes to configure the VTMapper block to support either the "SRDI-V" or the "ERDI-V" form of signaling, then he/she must set Bit 1 (RDIV Type) within the "Channel Control - VT-Mapper Block - Ingress Direction - Transmit RDI-V Control Register Byte 0" to the appropriate state.
258
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 237: CHANNEL CONTROL - VT-DEMAPPER E1 DROP CONTROL REGISTER 1 (VTDE1DCR1 = 0XND46)
BIT7
BIT6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
VT Error
Event
Declared
VT Size
Error
Defect
Declared
LOP-V
Defect
Declared
Change in
VT Label
Value[2:0]
Indicator
R/O
R/O
R/O
R/W1C
R/O
R/O
R/O
R/O
0
0
1
0
0
0
0
0
VT Label Value[2:0]
BIT 0
AIS-V Defect
Declared
BIT 7 - VT Error Event Declared:
This READ-ONLY bit-field indicates that at least one of the following defects, errors or note-worthy conditions are
currently being declared.
•
VT Size Error
•
LOP-V Defect Declared
•
Change in VT Label Event
•
AIS-V Defect Declared
•
AIS-V Failure Declared
•
RFI-V Defect Declared
•
RDI-V Defect Declared
0 - Indicates that none of these above-mentioned defects, errors or note-worthy conditions are currently being
declared.
1 - Indicates that at least one of the above-mentioned events are currently being declared.
BIT 6 - VT Size ErroDefect Declared:
This READ-ONLY bit-field indicates whether or not the Receive VT-De-Mapper block is currently declaring the VT Size
Error defect condition. The Receive VT-De-Mapper block will declare the VT Size Error defect condition anytime it
receives a VT data-stream with V1 bytes that contains the incorrect VT-Size bit values, as depicted below.
0 - Indicates that the Receive VT-De-Mapper block is NOT currently declaring the VT Size Error Defect condition.
1 - Indicates that the Receive VT-De-Mapper block is currently declaring the VT Size Error Defect condition.
BIT 5 - LOP-V Defect Declared:
This READ-ONLY bit-field indicates whether or not the Receive VT-Mapper block is currently declaring the LOP-V
Defect condition.
0 - Indicates that the Receive VT-De-Mapper Block is currently NOT declaring the LOP-V Defect Condition.
1 - Indicates that the Receive VT-De-Mapper block is currently declaring the LOP-V Defect Condition
BIT 4 - Change in VT Label[2:0] Indicator:
This READ/WRITE 1 to CLEAR bit-field indicates whether or not the Receive VT-De-Mapper block has detected a
Change in VT Signal Label, since the last time the user read and cleared this register bit
0 - Indicates that the Receive VT-De-Mapper block has NOT detected a Change in VT Signal Label since the last time
the user read and cleared this register bit.
BIT [3:1] - VT Label Value[2:0]:
This READ-ONLY bit-field reflects the value of the most recently accepted (or validated) VT Signal Label value.
BIT 0 - AIS-V Defect Declared:
This READ-ONLY bit-field indicates whether or not the Receive VT-De- Mapper block is currently declaring the AIS-V
defect condition, or not.
0 - Indicates that the Receive VT-De-Mapper Block is NOT currently declaring the AIS-V defect condition.
1 - Indicates that the Receive VT-De-Mapper Block is currently declaring the AIS-V defect condition.
259
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
TABLE 238: CHANNEL CONTROL - VT-DEMAPPER E1 DROP CONTROL REGISTER 0 (VTDE1DCR0 = 0XND47)
BIT7
BIT6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
RFI-V Defect
Declared
RDI-V Defect
Declared
Force E1
AIS In
Egress
Direction
R/O
R/O
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
E1 Cross Connect Channel Select_Egress Direction[4:0]
BIT 7 - RFI-V Defect Declared:
This READ/WRITE bit-field indicates whether or not the Receive VT-De-Mapper Block is currently declaring the RFI-V
defect condition.
0 - Indicates that the Receive VT-De-Mapper Block is NOT currently declaring the RFI-V defect condition.
1 - Indicates that the Receive VT-De-Mapper Block is currently declaring the RFI-V defect condition.
BIT 6 - RDI-V Defect Declared:
This READ/WRITE bit-field indicates whether or not the Receive VT-De-Mapper Block is currently declaring the RDI-V
defect condition.
0 - Indicates that the Receive VT-De-Mapper Block is NOT currently declaring the RDI-V defect condition.
1 - Indicates that the Receive VT-De-Mapper Block is currently declaring the RDI-V defect condition.
BIT 5 - Force E1 AIS In Egress Direction
This READ/WRITE bit-field is used to configure this particular Receive VT-De-Mapper block to transmit the E1 AIS
indicator within the Egress Direction of this particular E1 Channel.
0 - Configures the Receive VT-De-Mapper Block to NOT transmit the E1 AIS Pattern within the Egress Direction
corresponding to this particular channel.
1 - Configures the Receive VT-De-Mapper block to transmit the E1 AIS Pattern within the Egress Direction
corresponding to this particular channel.
BIT [4:0] - E1 Cross Connect Channel Select_Egress Direction[4:0]:
These READ/WRITE bit-fields are used to configure the Internal VT-Cross Connect.
More specifically, these READ/WRITE bit-fields are used to select which (of the 21 Egress Direction) E1 Ports, that this
particular Receive VT-Mapper block will route (or direct) its Egress Direction E1 Signal to.
The following table presents the relationship between the settings of these bit-fields and the resulting Cross-Connect
Configuration.
Cross Connect Configuration
E1 (CROSS CONNECT) CHANNEL
SELECT[4:0]
RESULTING PORT THAT THIS RECEIVE VT-MAPPER BLOCK
WILL DIRECT ITS E1 TRAFFIC TO
00000
Unequipped
00001
Egress Direction E1 Signal is routed to the Egress
Direction Output of E1 Channel 1
00010
Egress Direction E1 Signal is routed to the Egress
Direction Output of E1 Channel 2
00011
Egress Direction E1 Signal is routed to the Egress
Direction Output of E1 Channel 3
00100
Reserved
260
COMMENTS
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
Cross Connect Configuration
E1 (CROSS CONNECT) CHANNEL
SELECT[4:0]
RESULTING PORT THAT THIS RECEIVE VT-MAPPER BLOCK
WILL DIRECT ITS E1 TRAFFIC TO
00101
Egress Direction E1 Signal is routed to the Egress
Direction Output of E1 Channel 4
00110
Egress Direction E1 Signal is routed to the Egress
Direction Output of E1 Channel 5
00111
Egress Direction E1 Signal is routed to the Egress
Direction Output of E1 Channel 6
01000
Reserved
01001
Egress Direction E1 Signal is routed to the Egress
Direction Output of E1 Channel 7
01010
Egress Direction E1 Signal is routed to the Egress
Direction Output of E1 Channel 8
01011
Egress Direction E1 Signal is routed to the Egress
Direction Output of E1 Channel 9
01100
Reserved
01101
Egress Direction E1 Signal is routed to the Egress
Direction Output of E1 Channel 10
01110
Egress Direction E1 Signal is routed to the Egress
Direction Output of E1 Channel 11
01111
Egress Direction E1 Signal is routed to the Egress
Direction Output of E1 Channel 12
10000
Reserved
10001
Egress Direction E1 Signal is routed to the Egress
Direction Output of E1 Channel 13
10010
Egress Direction E1 Signal is routed to the Egress
Direction Output of E1 Channel 14
10011
Egress Direction E1 Signal is routed to the Egress
Direction Output of E1 Channel 15
10100
Reserved
10101
Egress Direction E1 Signal is routed to the Egress
Direction Output of E1 Channel 16
10110
Egress Direction E1 Signal is routed to the Egress
Direction Output of E1 Channel 17
10111
Egress Direction E1 Signal is routed to the Egress
Direction Output of E1 Channel 18
11000
Reserved
11001
Egress Direction E1 Signal is routed to the Egress
Direction Output of E1 Channel 19
11010
Egress Direction E1 Signal is routed to the Egress
Direction Output of E1 Channel 20
261
COMMENTS
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
Cross Connect Configuration
E1 (CROSS CONNECT) CHANNEL
SELECT[4:0]
RESULTING PORT THAT THIS RECEIVE VT-MAPPER BLOCK
WILL DIRECT ITS E1 TRAFFIC TO
11011
Egress Direction E1 Signal is routed to the Egress
Direction Output of E1 Channel 21
11100
Reserved
11101
Reserved
11110
Reserved
11111
Reserved
262
COMMENTS
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 239: CHANNEL CONTROL - VT-DEMAPPER BIP-2 ERROR COUNT REGISTER 1 (VTDBIP2ECR1 = 0XND4A)
BIT7
BIT6
BIT 5
BIT 4
BIT 3
VT Payload Pointer Increment Count[3:0]
BIT 2
BIT 1
BIT 0
BIP-2 Error Count[11:8]
RUR
RUR
RUR
RUR
RUR
RUR
RUR
RUR
0
0
0
0
0
0
0
0
BIT [7:4] - VT Payload Pointer Increment Count[3:0]:
These RESET-upon-READ bit-fields reflect the number of VT Payload Pointer Increment events that the Receive VTMapper block has detected since the last read of this register. The Receive VT-Mapper block will increment the
contents within these bit-fields each time that it detects a VT Payload Pointer Increment event within the incoming VT
data-stream.
BIT [3:0] - BIP-2 Error Count[11:8]:
These RESET-upon-READ bit-fields, along with those within the VT Mapper Block - Egress Direction - BIP-2 Error
Count Register - Byte 0, presents a 12-bit expression that reflects the number of BIP-2 Errors that the Receive VTMapper Block has detected (within the incoming VT-data-stream) since the last read of this register.
These particular bit-fields are the four most significant bit-fields within this 12-bit expression.
TABLE 240: CHANNEL CONTROL - VT-DEMAPPER BIP-2 ERROR COUNT REGISTER 0 (VTDBIP2ECR0 = 0XND4B)
BIT7
BIT6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
BIP-2 Error Count[7:0]
RUR
RUR
RUR
RUR
RUR
RUR
RUR
RUR
0
0
0
0
0
0
0
0
BIT [7:0] - BIP-2 Error Count[7:0]:
These RESET-upon-READ bit-fields, along with those within the VT Mapper Block - Egress Direction - BIP-2 Error
Count Register - Byte 1, presents a 12-bit expression that reflects the number of BIP-2 Errors that the Receive VTMapper Block has detected (within the incoming VT-data-stream) since the last read of this register.
These particular bit-fields are the eight least significant bit-fields within this 12-bit expression.
263
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
TABLE 241: CHANNEL CONTROL - VT-DEMAPPER REI-V EVENT COUNT REGISTER 1 (VTDREIECR1 = 0XND4E)
BIT7
BIT6
BIT 5
BIT 4
BIT 3
VT-Payload Pointer Decrement Count[3:0]
BIT 2
BIT 1
BIT 0
REI-V Event Count[11:8]
RUR
RUR
RUR
RUR
RUR
RUR
RUR
RUR
0
0
0
0
0
0
0
0
BIT [7:4] - VT Payload Pointer Decrement Count[3:0]:
These RESET-upon-READ bit-fields reflect the number of VT Payload Pointer Decrement events that the Receive VTMapper block has detected since the last read of this register. The Receive VT-Mapper block will increment the
contents within these bit-fields each time that it detects a VT Payload Pointer Decrement event within the incoming VT
data-stream.
BIT [3:0] - REI-V Event Count[11:8]:
These RESET-upon-READ bit-fields, along with those within the VT Mapper Block - Egress Direction - REI-V Event
Count Register - Byte 0, presents a 12-bit expression that reflects the number of REI-V Events that the Receive VTMapper Block has detected (within the incoming VT-data-stream) since the last read of this register.
These particular bit-fields are the four most significant bit-fields within this 12-bit expression.
TABLE 242: CHANNEL CONTROL - VT-DEMAPPER REI-V EVENT COUNT REGISTER 0 (VTDREIECR0 = 0XND4F)
BIT7
BIT6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
REI-V Event Count[7:0]
RUR
RUR
RUR
RUR
RUR
RUR
RUR
RUR
0
0
0
0
0
0
0
0
BIT [7:0] - REI-V Event Count[7:0]:
These RESET-upon-READ bit-fields, along with those within the VT Mapper Block - Egress Direction - REI-V Event
Count Register - Byte 1, presents a 12-bit expression that reflects the number of REI-V Events that the Receive VTMapper Block has detected (within the incoming VT-data-stream) since the last read of this register.
These particular bit-fields are the eight least significant bit-fields within this 12-bit expression.
264
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 243: CHANNEL CONTROL - VT-DEMAPPER RECEIVE APS REGISTER 1 (VTDRAPSR1 = 0XND52)
BIT7
BIT6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
Event Mask VT Channel
VT Size
Error - Event
Mask
LOP-V
Defect Event Mask
Change of
VT Label Event Mask
Receive
Elastic Store
Overflow
Event
AIS-V Failure - Event
Mask
R/W
R/W
R/W
R/W
R/W1C
R/W
R/O
R/W
0
0
0
0
0
0
0
0
AIS-V Fail- AIS-V Defect
ure Declared - Event Mask
BIT 7 - Event Mask - VT Channel:
This READ/WRITE bit-field is used to either enable or disable the Channel Control - VT Error Event Declared bit-field
(within the VT-Mapper Block - Ingress Direction - E1 Drop Control Register).
If the user disables the VT Error Event Declared register bit, then that particular bit-field will never be asserted in
response to any of the following defects, errors or note-worthy conditions.
•
VT Size Error
•
LOP-V Defect Declared
•
Change in VT Label Event
•
AIS-V Defect Declared
•
AIS-V Failure Declared
•
RFI-V Defect Declared
•
RDI-V Defect Declared
•
Receive Elastic Store Overflow Event
•
Change of Receive APS Value Event
0 - Disables the VT Error Event Declared bit-field, entirely
1 - Enables the VT Error Event Declared bit-field.
BIT 6 - VT Size Error - Event Mask
This READ/WRITE bit-field is used to either enable or disable the VT Size Error defect to/from causing both the VT Error
Event Declared and the VT Size Error Event - bit-fields to be asserted. If the user enables this feature, then the Receive
VT-De-Mapper block will assert Bit 7 (VT Error Event Declared) within the Channel Control - VT Mapper Block - Egress
Direction - E1 Drop Control Register - Byte 1 to 1 anytime it declares the VT Size Error Defect condition. Conversely,
if the user disables this feature, then the Receive VT De-Mapper Block will NOT assert the VT Error Event Declared bitfield whenever it declares the VT Size Error Defect condition.
0 - Configures the Receive VT-De-Mapper block to NOT assert the VT Error Event Declared bit-field whenever it
declares the VT Size Error Defect condition.
1 - Configures the Receive VT-De-Mapper block to assert the VT Error Event Declared bit-field whenever it declares
the VT Size Error Defect condition.
BIT 5 - LOP-V Defect - Event Mask
This READ/WRITE bit-field permits the user to either enable or disable the LOP-V Defect defect to/from causing the VT
Error Event Declared bit-field to be asserted. If the user enables this feature, then the Receive VT De-Mapper block
will assert Bit 7 (VT Error Event Declared) within the Channel Control - VT Mapper Block - Egress Direction - E1 Drop
Control Register - Byte 1 to 1 anytime it declares the LOP-V defect condition. Conversely, if the user disables this
feature, then the Receive VT-De-Mapper Block will NOT assert the VT Error Event Declared bit-field whenever it
declares the LOP-V defect condition.
0 - Configures the Receive VT-De-Mapper block to NOT assert the VT Error Event Declared bit-field whenever it
declares the LOP-V defect condition.
1 - Configures the Receive VT-De-Mapper block to assert the VT Error Event Declared bit-field whenever it declares
the LOP-V defect condition
265
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
BIT 4 - Change of VT Label - Event Mask
This READ/WRITE bit-field permits the user to either enable or disable the Change of VT Label condition to/from
causing the VT Error Event Declared bit-field to be asserted. If the user enables this feature, then the Receive VT-DeMapper block will assert Bit 7 (VT Error Event Declared) within the Channel Control - VT Mapper Block - Egress
Direction - E1 Drop Control Register - Byte 1 to 1 anytime it declares the Change of VT Label condition. Conversely, if
the user disables this feature, then the Receive VT-De-Mapper block will NOT assert the VT Error Event Declared bitfield whenever it declares the Change of VT Label condition.
0 - Configures the Receive VT-De-Mapper block to NOT assert the VT Error Event Declared bit-field whenever it
declares the Change of VT Label condition.
1 - Configures the Receive VT-De-Mapper block to assert the VT Error Event Declared bit-field whenever it declares
the Change of VT Label condition.
BIT 3 - Receive Elastic Store Overflow Event
This READ/W1C bit-field indicates whether or not the Receive Elastic Store Overflow event has occurred (within this
Tributary) since the last time that the user has written a 1 to clear this bit-field.
0 - Indicates that the Receive Elastic Store Overflow Event has NOT occurred since the last time the user has written
a 1 to clear this bit-field.
1 - Indicates that the Receive Elastic Store Overflow Event has occurred since the last time the user has written a 1
to clear this bit-field.
BIT 2 - AIS-V Failure - Event Mask
This READ/WRITE bit-field permits the user to either enable or disable the AIS-V Failure condition to/from causing the
VT Error Event Declared bit-field to be asserted. If the user enables this feature, then the Receive VT-De-Mapper block
will assert Bit 7 (VT Error Event Declared) within the Channel Control - VT Mapper Block - Egress Direction - E1 Drop
Control Register - Byte 1 to 1 anytime it declares the AIS-V Failure condition. Conversely, if the user disables this
feature, then the Receive VT-De-Mapper block will NOT assert the VT Error Event Declared bit-field whenever it
declares the AIS-V Failure condition.
0 - Configures the Receive VT-De-Mapper block to NOT assert the VT Error Event Declared bit-field whenever it
declares the AIS-V Failure condition.
1 - Configures the Receive VT-De-Mapper block to assert the VT Error Event Declared bit-field whenever it declares
the AIS-V Failure condition.
BIT 1 - AIS-V Failure Declared
This READ-ONLY bit-field indicates whether or not the Receive VT-De-Mapper block is currently declaring the AIS-V
Failure condition.
The Receive VT-De-Mapper block will declare the AIS-V Failure condition if it continuously declares the AIS-V Defect
condition for 2.5 ± 0.5 seconds. The Receive VT De-Mapper block will clear the AIS-V Failure condition, whenever it
has cleared the AIS-V Defect condition for 10 ± 0.5 seconds.
0 - Indicates that the Receive VT-De-Mapper block is NOT currently declaring the AIS-V Failure condition.
1 - Indicates that the Receive VT-De-Mapper block is currently declaring the AIS-V Failure condition.
BIT 0 - AIS-V Defect - Event Mask
This READ/WRITE bit-field permits the user to either enable or disable the AIS-V Defect condition to/from causing the
VT Error Event Declared bit-field to be asserted. If the user enables this feature, then the Receive VT-De-Mapper block
will assert Bit 7 (VT Error Event Declared) within the Channel Control - VT Mapper Block - Egress Direction - E1 Drop
Control Register - Byte 1 to 1 anytime it declares the AIS-V Defect condition. Conversely, if the user disables this
feature, then the Receive VT-De-Mapper block will NOT assert the VT Error Event Declared bit-field whenever it
declares the AIS-V Defect condition.
0 - Configures the Receive VT-De-Mapper block to NOT assert the VT Error Event Declared bit-field whenever it
declares the AIS-V Defect condition.
1 - Configures the Receive VT-De-Mapper block to assert the VT Error Event Declared bit-field whenever it declares
the AIS-V Defect condition.
266
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 244: CHANNEL CONTROL - VT-DEMAPPER RECEIVE APS REGISTER 0 (VTDRAPSR0 = 0XND53)
BIT 7
BIT 6
BIT 5
RFI-V Defect RDI-V Defect
Change of
Event - Mask Event - Mask Receive APS
Value Event Mask
BIT 4
BIT 3
Change of
Receive APS
Value
BIT 2
BIT 1
BIT 0
Receive APS Value[3:0]
R/W
R/W
R/W
R/W1C
R/O
R/O
R/O
R/O
0
0
0
0
0
0
0
0
BIT 7 - RFI-V Defect - Event Mask:
This READ/WRITE bit-field permits the user to either enable or disable the RFI-V Defect defect to/from causing the VT
Error Event Declared bit-field to be asserted. If the user enables this feature, then the Receive VT De-Mapper block
will assert Bit 7 (VT Error Event Declared) within the Channel Control - VT Mapper Block - Egress Direction - E1 Drop
Control Register - Byte 1 to 1 anytime it declares the RFI-V defect condition. Conversely, if the user disables this
feature, then the Receive VT-De-Mapper Block will NOT assert the VT Error Event Declared bit-field whenever it
declares the RFI-V defect condition.
0 - Configures the Receive VT-De-Mapper block to NOT assert the VT Error Event Declared bit-field whenever it
declares the RFI-V defect condition.
1 - Configures the Receive VT-De-Mapper block to assert the VT Error Event Declared bit-field whenever it declares
the RFI-V defect condition.
BIT 6 - RDI-V Defect - Event Mask:
This READ/WRITE bit-field permits the user to either enable or disable the RDI-V Defect defect to/from causing the VT
Error Event Declared bit-field to be asserted. If the user enables this feature, then the Receive VT De-Mapper block
will assert Bit 7 (VT Error Event Declared) within the Channel Control - VT Mapper Block - Egress Direction - E1 Drop
Control Register - Byte 1 to 1 anytime it declares the RDI-V defect condition. Conversely, if the user disables this
feature, then the Receive VT-De-Mapper Block will NOT assert the VT Error Event Declared bit-field whenever it
declares the RDI-V defect condition.
0 - Configures the Receive VT-De-Mapper block to NOT assert the VT Error Event Declared bit-field whenever it
declares the RDI-V defect condition.
1 - Configures the Receive VT-De-Mapper block to assert the VT Error Event Declared bit-field whenever it declares
the RDI-V defect condition.
BIT 5 - Change of Receive APS Value - Event Mask:
This READ/WRITE bit-field permits the user to either enable or disable the Change of APS Value event to/from causing
the VT Error Event Declared bit-field to be asserted. If the user enables this feature, then the Receive VT-De-Mapper
block will assert Bit 7 (VT Error Event Declared) within the Channel Control VT Mapper Block - Egress Direction - E1
Drop Control Register - Byte 1 to 1 anytime it declares the Change of Receive APS Value event. Conversely, if the user
disables this feature, then the Receive VT-De-Mapper Block will NOT assert the VT Error Event Declared bit-field
whenever it declares the Change of Receive APS Value event.
0 - Configures the Receive VT-De-Mapper block to NOT assert the VT Error Event Declared bit-field whenever it
declares the Change of Receive APS Value event.
1 - Configures the Receive VT-De-Mapper block to assert the VT Error Event Declared bit-field whenever it declares
the Change of Receive APS Value event.
BIT 4 - Change of Receive APS Value:
This READ/W1C bit-field indicates whether or not the Change of Receive APS Value event has occurred (within this
Tributary) since the last time that the user has written a 1 to clear this bit-field. The Receive VT-De-Mapper block will
declare the Change of Receive APS Value whenever it has accepted a new value from the K4 bytes within the incoming
VT data-stream.
0 - Indicates that the Change of Receive APS Value event has NOT occurred since the last time the user has written
a 1 to clear this bit-field.
1 - Indicates that the Change of Receive APS Value event has occurred since the last time the user has written a 1
to clear this bit-field.
267
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
BIT [3:0] - Receive APS Value[3:0]:
These four (4) READ-ONLY bit-field reflects the APS value that the VT-De-Mapper block has received (via Bits 1
through 4, within the K4 byte) and has validated.
268
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 245: CHANNEL CONTROL - VT-MAPPER TRANSMIT APS REGISTER 1 (VTMTAPSR1 = 0XND56)
BIT 7
BIT 6
BIT 5
BIT 4
E1 AIS Event Mask
E1 LOC Event Mask
R/W
R/W
R/W
R/W
W1C
R/O
R/O
R/O
0
0
0
0
0
0
0
0
Reserved
BIT 3
BIT 2
Transmit
Elastic Store
Overflow
BIT 1
BIT 0
Reserved
BIT 7 - E1 AIS - Event Mask:
This READ/WRITE bit-field permits the user to either enable or disable the "Change of E1 AIS Defect Condition" event
to/from causing the "Change of E1 AIS Defect Condition" interrupt to be generated. If the user enables this feature, then
the VT-Mapper block will assert the "Change of E1 AIS Defect Condition" interrupt in response to either of the following
conditions.
• Whenever the VT-Mapper block declares the "E1 AIS" defect condition within the Ingress Direction E1 Data-stream.
• Whenever the VT-Mapper block clears the "E1 AIS" defect condition within the Ingress Direction E1 Data Stream.
0 - Configures the VT-Mapper Block to NOT generate the "Change of E1 AIS Defect Condition" interrupt, whenever
it declares or clears the E1 AIS defect condition.
1 - Configures the VT-Mapper Block to generate the "Change of E1 AIS Defect Condition" interrupt, whenever it
declares or clears the "E1 AIS defect condition.
BIT 6 - E1 Loss of Clock Event - Event Mask:
This READ/WRITE bit-field permits the user to either enable or disable the "Change of E1 LOC Defect Condition" event
to/from causing the "Change of E1 LOC Defect Condition" interrupt to be generated. If the user enables this feature,
then the VT-Mapper block will assert the "Change of E1 LOC Defect Condition" interrupt in response to either of the
following conditions.
• Whenever the VT-Mapper block declares the "E1 LOC" defect condition within the Ingress Direction E1 Data-stream.
• Whenever the VT-Mapper block clears the "E1 LOC" defect condition within the Ingress Direction E1 Data Stream.
0 - Configures the VT-Mapper Block to NOT generate the "Change of E1 LOC Defect Condition" interrupt, whenever
it declares or clears the E1 LOC defect condition.
1 - Configures the VT-Mapper Block to generate the "Change of E1 LOC Defect Condition" interrupt, whenever it
declares or clears the "E1 LOC defect condition.
BIT [5:4] - Reserved:
BIT 3 - Transmit Elastic Store Overflow:
This READ/W1C bit-field indicates whether or not the VT Mapper block has declared a "Transmit Elastic Store Overflow"
event since the last read of this register. The VT-Mapper Block will declare a "Transmit Elastic Store Overflow" event
anytime that the "Transmit FIFO" (within the VT-Mapper block) has experience an "overflow" event.
0 - Indicates that the "Transmit Elastic Store Overflow" event has NOT occurred since the last read of this register.
1 - Indicates that the "Transmit Elastic Store Overflow" event has occurred since the last read of this register.
NOTE: The VT-Mapper block will typically handle "small timing offsets" (between the Ingress Direction E1 signal and
the "Transmit Direction" 19.44MHz or 51.84MHz clock signal via bit-stuffing (as it maps this E1 data into VTs.
However, if this bit-field is set to "1", this is typically a indication of a significant clock frequency accuracy
problem within the system.
BIT [2:0] - Reserved:
269
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
TABLE 246: CHANNEL CONTROL - VT-MAPPER TRANSMIT APS/K4 REGISTER 0 (VTMTAPSR0 = 0XND57)
BIT 7
BIT 6
Reserved
BIT 5
BIT 4
BIT 3
BIT 2
TxERDI[2:0]
BIT 1
BIT 0
TxAPS[3:0]
R/O
R/W
R/W
R/W
R/O
R/O
R/O
R/O
0
0
0
0
0
0
0
0
BIT 7 - Reserved:
BIT [6:4] - Transmit ERDI-V[2:0]
These three (3) READ/WRITE bit-fields permit the user to exercise software control over the value of the "ERDI-V" bits
that are transported via "Bits 5 through 7" (within the K4 byte) within the outbound VT data-stream.
NOTE: This bit-field is only active if both of the following is true.
•
The user has configured VT-Mapper/De-Mapper blocks to support the ERDI-V (Extended - RDI-V) form of
signaling and,
•
The user has set Bit 6 (Transmit RDI-V Value) within the "Channel Control - VT Mapper Block - Ingress
Direction - E1 Insertion Control Register - 0" to "1".
BIT [3:0] - Transmit APS Value[3:0]
These four (4) READ/WRITE bit-fields permit the user to exercise software control over the value of the "APS" bits that
are transported via Bits 1 through 4 (within the K4 byte) within the outbound VT data-stream.
TABLE 247: CHANNEL CONTROL - VT-DEMAPPER TANDEM CONNECTION - RECEIVE BIP-2 ERROR COUNT
REGISTER 2 (VTDTCBIP2ECR = 0XND59)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
TC_BIP_2 Error Count[7:0]
RUR
RUR
RUR
RUR
RUR
RUR
RUR
RUR
0
0
0
0
0
0
0
0
BIT [7:0] - Tandem Connection Receive BIP-2 Error Count:
This RESET-upon-READ bit-fields present an 8-bit expression that reflects the number of BIP-2 Errors that the Receive
VT-Mapper Block has detected (within Bit-7 and Bit-6 of the N2 Byte of the incoming VT-data-stream) since the last read
of this register.
TABLE 248: CHANNEL CONTROL - VT-DEMAPPER TANDEM CONNECTION - RECEIVE REI-V EVENT COUNT REGISTER
1 (VTDTCREIECR = 0XND5B)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
TC_REI-V Event Count[7:0]
RUR
RUR
RUR
RUR
RUR
RUR
RUR
RUR
0
0
0
0
0
0
0
0
BIT [7:0] - Tandem Connection Receive REI-V Event Count:
This RESET-upon-READ bit-fields present an 8-bit expression that reflects the number of REI-V Events that the
Receive VT-Mapper Block has detected (within Bit-3 of the N2 Byte of the incoming VT-data-stream) since the last read
of this register.
270
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 249: CHANNEL CONTROL - VT-DEMAPPER TANDEM CONNECTION - RECEIVE OEI EVENT COUNT REGISTER 0
(VTDTCOEIECR = 0XND5F)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
TC_OEI Event Count[7:0]
RUR
RUR
RUR
RUR
RUR
RUR
RUR
RUR
0
0
0
0
0
0
0
0
BIT [7:0] - Tandem Connection Receive OEI Event Count:
This RESET-upon-READ bit-fields present an 8-bit expression that reflects the number of OEI Events that the Receive
VT-Mapper Block has detected (within Bit-2 of the N2 Byte of the incoming VT-data-stream) since the last read of this
register.
TABLE 250: CHANNEL CONTROL - VT-DEMAPPER INTERRUPT STATUS REGISTER 1 (VTDCSR1 = 0XND60)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
Reserved
BIT 1
BIT 0
Change of
Receive APS
Value
Transmit or Receive
Elastic Store Overflow Event
R/O
R/O
R/O
R/O
R/O
R/O
R/O
R/O
0
0
0
0
0
0
0
0
BIT [7:2] - Reserved:
BIT 1 - Change of Receive APS Value Event:
This READ-ONLY bit-field indicates whether or not the VT-De-Mapper block has detected a change of state of the
received VT path APS signalling. Three consecutive consistent new values for the received VT Path APS signal must
be detected for this bit to be set.
0 - Indicates that the VT-De-Mapper block is NOT currently detecting a change of state of the VT Path APS signalling.
1 - Indicates that the VT-De-Mapper block is currently detecting a change of state of the VT Path APS signalling.
BIT 0 - Transmit or Receive Elastic Store Overflow Event:
This READ-ONLY bit-field indicates whether or not the VT-De-Mapper block has experienced either a receive or a
transmit elastic store overflow.
0 - Indicates that the VT-De-Mapper block is NOT currently declaring a receive or a transmit elastic store overflow.
1 - Indicates that the VT-De-Mapper block is currently declaring a receive or a transmit elastic store overflow.
271
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
TABLE 251: CHANNEL CONTROL - VT-DEMAPPER INTERRUPT STATUS REGISTER 0 (VTDCSR0 = 0XND61)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
VT Size
Error Event
LOP-V
Defect Event
RFI-V Defect
Event
RDI-V Defect
Event
AIS-V Defect
Event
AIS Pointer
Event
Change in
VT Label
Event
E1 AIS or
LOC Event
R/O
R/O
R/O
R/O
R/O
R/O
R/O
R/O
0
0
0
0
0
0
0
0
BIT 7 - VT Size Error Event:
This READ-ONLY bit-field reports whether or not an incorrect virtual container size bits were received. The valid virtual
container size bits are "10" for VT2/TU-12.
0 - Indicates that the VT-De-Mapper block is NOT currently receiving an incorrect VT Size bits error.
1 - Indicates that the VT-De-Mapper block is currently receiving an incorrect VT Size bits error.
BIT 6 - LOP-V Defect Event:
This READ-ONLY bit-field indicates whether or not the VT-De-Mapper block is currently declaring the "VT Path Loss of
Pointer" (LOP-V) defect condition.
0 - Indicates that the VT-De-Mapper block is NOT currently declaring the LOP-V defect condition.
1 - Indicates that the VT-De-Mapper block is currently declaring the LOP-V defect condition.
BIT 5 - RFI-V Defect Event:
This READ-ONLY bit-field indicates whether or not the VT-De-Mapper block is currently declaring the "Remote Failure
Indicator" (RFI-V) defect condition. Three consecutive VT Frames with consistent RFI defect indicator value must be
detected for this bit to be set.
0 - Indicates that the VT-De-Mapper block is NOT currently declaring the RFI-V defect condition.
1 - Indicates that the VT-De-Mapper block is currently declaring the RFI-V defect condition.
BIT 4 - RDI-V Defect Event:
This READ-ONLY bit-field indicates whether or not the VT-De-Mapper block is currently declaring the "Remote Defect
Indicator" (RDI-V) defect condition. Three consecutive VT Frames with consistent RDI defect indicator value must be
detected for this bit to be set.
0 - Indicates that the VT-De-Mapper block is NOT currently declaring the RDI-V defect condition.
1 - Indicates that the VT-De-Mapper block is currently declaring the RDI-V defect condition.
BIT 3 - AIS-V Defect Event:
This READ-ONLY bit-field indicates whether or not one or more of the VT-De-Mapper block is currently declaring the
"Alarm Indication Signal" (AIS-V) defect condition due to one of the VT AIS-F fields in the RAPSxx registers being active
and not masked. This bit will be set if AIS-V defect condition has been declared in any of the 21 VT-De-mapper block.
0 - Indicates that the VT-De-Mapper block is NOT currently declaring the AIS-V defect condition.
1 - Indicates that the VT-De-Mapper block is currently declaring the AIS-V defect condition.
BIT 2 - AIS Pointer Event:
This READ-ONLY bit-field indicates whether or not the VT-De-Mapper block is currently declaring the "Alarm Indication
Signal Pointer" (AISP-V) defect condition. Three consecutive VT Frames with all ones value for V1 and V2 pointer bytes
must be detected for this bit to be set.
0 - Indicates that the VT-De-Mapper block is NOT currently declaring the AISP-V defect condition.
1 - Indicates that the VT-De-Mapper block is currently declaring the AISP-V defect condition.
272
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
BIT 1 - Change in VT Label Event:
This READ-ONLY bit-field indicates whether or not the VT-De-Mapper block is currently detecting a VT Label change
of state event. Three consecutive VT Frames with a consistently different VT Label value must be detected for this bit
to be set.
0 - Indicates that the VT-De-Mapper block is NOT currently detecting a VT Label change condition.
1 - Indicates that the VT-De-Mapper block is currently detecting a VT Label change condition.
BIT 0 - E1 AIS or LOC Event:
This READ-ONLY bit-field indicates whether or not the VT-De-Mapper block is currently declaring the "Alarm Indication
Signal Defect" (AIS-V) or "Loss of Clock" (LOC-V) defect condition.
0 - Indicates that the VT-De-Mapper block is NOT currently declaring the AIS-V or LOC-V defect condition.
1 - Indicates that the VT-De-Mapper block is currently declaring the AIS-V or LOC-V defect condition.
273
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
TABLE 252: CHANNEL CONTROL - VT-DEMAPPER TANDEM CONNECTION STATUS REGISTER
= 0XND62)
(VTDTCSR
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
Reserved
TC RDI
Defect
Declared
TC ODI
Defect
Declared
TC API
Message
Mismatch
Defect
Declared
Unstable
TC API
Message
Defect
Declared
TC LOMF
Defect
Declared
TC UNEQ
Defect
Declared
TC AIS
Defect
Declared
R/O
R/O
R/O
R/O
R/O
R/O
R/O
R/O
0
0
0
0
0
0
0
0
BIT 7 - Reserved:
BIT 6 - TC RDI-V Defect Declared:
This READ-ONLY bit-field indicates whether or not the VT-De-Mapper block is currently detecting a Remote Defect
Indicator in Bit-0 of the Tandem Connection Frame 73 for 5 consecutive frames. This alarm is cleared when no RDI
defect indicator is detected in Bit-0 of the Tandem Connection Frame 73 for 5 consecutive frames.
0 - Indicates that the VT-De-Mapper block is NOT currently detecting a TC RDI-V defect condition.
1 - Indicates that the VT-De-Mapper block is currently detecting a TC RDI-V defect condition.
BIT 5 - TC ODI-V Defect Declared:
This READ-ONLY bit-field indicates whether or not the VT-De-Mapper block is currently detecting an Outgoing Defect
Indicator in Bit-1 of the Tandem Connection Frame 74 for 5 consecutive frames. This alarm is cleared when no ODI-V
defect indicator is detected in Bit-1 of the Tandem Connection Frame 74 for 5 consecutive frames.
0 - Indicates that the VT-De-Mapper block is NOT currently detecting a TC ODI-V defect condition.
1 - Indicates that the VT-De-Mapper block is currently detecting a TC ODI-V defect condition.
BIT 4 - TC API-V Message Mismatch Defect Declared:
This READ-ONLY bit-field indicates whether or not the VT-De-Mapper block is currently declaring the "Tandem
Connection Access Point Identifier Message Mismatch" defect condition. This defect is declared when a Tandem
Connection API message is accepted that is different from the expected Tandem Connection API message. This defect
is cleared when the expected API message is received on the J2 byte for N consecutive messages, where N is either
3 or 5 depending on the message acceptance threshold set for API messages on Bit-3 of the Channel Control - VT-DeMapper Path Trace Buffer Control Register (VTDPTBCR) on address 0xND71.
0 - Indicates that the VT-De-Mapper block is NOT currently declaring a TC API message mismatch.
1 - Indicates that the VT-De-Mapper block is currently declaring a TC API message mismatch.
BIT 3 - Unstable TC API-V Message Defect Declared:
This READ-ONLY bit-field indicates whether or not the VT-De-Mapper block is currently declaring the "Tandem
Connection Unstable Access Point Identifier Message" defect condition. This defect is declared when the internal TC
API unstable message counter has detected 8 or more consecutively different API message. The VT-De-Mapper block
will increment the internal TC API unstable message counter for each time that it receives a Tandem Connection API
Message that differs from the previously received message. This defect is cleared when the same API message is
received on the J2 byte for N consecutive messages, where N is either 3 or 5 depending on the message acceptance
threshold set for API messages on Bit-3 of the Channel Control - VT-De-Mapper Path Trace Buffer Control Register
(VTDPTBCR) on address 0xND71.
0 - Indicates that the VT-De-Mapper block is NOT currently declaring a TC Unstable API message mismatch.
1 - Indicates that the VT-De-Mapper block is currently declaring a TC Unstable API message mismatch.
274
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
BIT 2 - TC LOMF-V Defect Declared:
This READ-ONLY bit-field indicates whether or not the VT-De-Mapper block is currently declaring a "Tandem
Connection Loss of Multiframe" defect condition.
0 - Indicates that the VT-De-Mapper block is NOT currently declaring the TC LOMF-V defect condition.
1 - Indicates that the VT-De-Mapper block is currently declaring the TC LOMF-V defect condition.
BIT 1 - TC UNEQ-V Defect Declared:
This READ-ONLY bit-field indicates whether or not the VT-De-Mapper block is currently detecting a "Tandem
Connection Unequipped Indication Signal" defect condition.
0 - Indicates that the VT-De-Mapper block is NOT currently declaring the TC UNEQ-V defect condition.
1 - Indicates that the VT-De-Mapper block is currently declaring the TC UNEQ-V defect condition.
BIT 0 - TC AIS-V Defect Declared:
This READ-ONLY bit-field indicates whether or not the VT-De-Mapper block is currently detecting a "Tandem
Connection Alarm Indication Signal" defect condition in the received N2 byte.
0 - Indicates that the VT-De-Mapper block is NOT currently declaring the TC AIS-V defect condition.
1 - Indicates that the VT-De-Mapper block is currently declaring the TC AIS-V defect condition.
275
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
TABLE 253: CHANNEL CONTROL - VT-DEMAPPER J2 BYTE STATUS REGISTER (VTDJ2BSR = 0XND63)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
Reserved
BIT 2
BIT 1
BIT 0
TIM-V Defect
Declared
VT Path Trace
Message
Unstable Defect
Declared
Reserved
R/O
R/O
R/O
R/O
R/O
R/O
R/O
R/O
0
0
0
0
0
0
0
0
BIT [7:3] - Reserved:
BIT 2 - TIM-V Defect Declared:
This READ-ONLY bit-field indicates whether or not the VT-De-Mapper block is currently declaring the "VT Trace
Identification Mismatch" (TIM-V) defect condition.
The VT-De-Mapper block will declare the TIM-V defect condition, when none of the received 1, 16 or 64-byte string
(received via the J2 byte, within the incoming VT-data-stream) matches the expected 1, 16 or 64 byte message.
The VT-De-Mapper block will clear the "TIM-V" defect condition, when 80% of the received 1, 16 or 64 byte string
(received via the J2 byte) matches the 1, 16 or 64 byte message.
0 - Indicates that the VT-De-Mapper block is NOT currently declaring the TIM-V defect condition.
1 - Indicates that the VT-De-Mapper block is currently declaring the TIM-V defect condition.
BIT 1 - VT Path Trace Message Unstable Defect Declared:
This READ-ONLY bit-field indicates whether or not the VT-De-Mapper block is currently declaring the "VT Path Trace
Message Unstable" defect condition. The VT-De-Mapper block will declare the "VT Path Trace Message Unstable"
defect condition, whenever the "VT Path Trace Message Unstable" counter reaches the value "8". The VT-De-Mapper
block will increment the "VT Path Trace Message Unstable" counter for each time that it receives a "VT Path Trace
Message" that differs from the previously received message. The "VT Path Trace Message Unstable" counter is cleared
to "0" whenever the VT-De-Mapper block has received a given "VT Path Trace Message" 3 (or 5) consecutive times.
0 - Indicates that the VT-De-Mapper block is NOT currently declaring the "VT:Path Trace Message Unstable" defect
condition.
1 - Indicates that the VT De-Mapper block is currently declaring the "VT Path Trace Message Unstable" defect
condition.
NOTE: The VT-De-Mapper block will also set this bit-field "0" anytime it receives a given "VT Path Trace Message" 3
(or 5) consecutive times.
BIT 0 - Reserved:
276
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 254: CHANNEL CONTROL - VT-DEMAPPER INTERRUPT STATUS REGISTER 1 (VTDCSR1 = 0XND64)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
Reserved
BIT 1
BIT 0
Change of
Receive APS
Value
Elastic Store
Overflow
Event
R/O
R/O
R/O
R/O
RUR
RUR
RUR
RUR
0
0
0
0
0
0
0
0
BIT [7:2] - Reserved:
BIT 1 - Change of Receive APS Value Interrupt:
This RESET-upon-READ bit-field indicates whether or not the "VT-De-Mapper" block has generated the "Change of
Receive APS Value" Interrupt since the last read of this register. The VT-De-Mapper block will generate this interrupt
whenever it has "accepted" a new "APS" value (from the K4 bytes within the incoming VT-data-stream).
0 - Indicates that the "Change of Receive APS Value" Interrupt has NOT occurred since the last read of this register.
1 - Indicates that the "Change of Receive APS Value" Interrupt has occurred since the last read of this register.
BIT 0 - Transmit or Receive Elastic Store Overflow Event Interrupt:
This RESET-upon-READ bit-field indicates whether or not the "VT Mapper/VT-De-Mapper" block has generated the
"Elastic Store Overflow Event" Interrupt since the last read of this register. The VT-Mapper/De-Mapper block will
generate this interrupt in response to either of the following conditions.
• Whenever the "Transmit FIFO" within the VT-Mapper Block, experiences an overflow event.
• Whenever the "Receive FIFO" within the VT-De-Mapper Block, experiences an overflow event.
0 - Indicates that the channel has NOT generated an "Elastic Store Overflow" Interrupt since the last read of this
register.
1 - Indicates that the channel has generated an "Elastic Store Overflow" interrupt since the last read of this register.
277
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
TABLE 255: CHANNEL CONTROL - VT-DEMAPPER INTERRUPT STATUS REGISTER 0 (VTDCSR0 = 0XND65)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
VT Size
Error
Interrupt
Status
Change of
LOP-V
Defect
Condition
Interrupt
Status
Change of
RFI-V Defect
Condition
Interrupt
Status
Change of
RDI-V Defect
Condition
Interrupt
Status
Change of
AIS-V
Failure
Condition
Interrupt
Status
Change of
AIS-V
Defect
Condition
Interrupt
Status
Change of
VT Label
Interrupt
Status
Change of
E1 AIS
Defect
Condition
Interrupt
Status
RUR
RUR
RUR
RUR
RUR
RUR
RUR
RUR
0
0
0
0
0
0
0
0
BIT 7 - VT Size Error Interrupt Status:
This RESET-upon-READ bit-field indicates whether or not the "VT-De-Mapper" block has generated the "VT Size Error"
Interrupt since the last read of this register. The VT-De-Mapper block will generate the "VT Size Error" Interrupt anytime
it declares the "VT Size Error" defect condition.
0 - Indicates that the VT Size Error Interrupt has NOT occurred since the last read of this register.
1 - Indicates that the VT Size Error Interrupt has occurred since the last read of this register.
BIT 6 - Change of LOP-V Defect Condition Interrupt Status
This RESET-upon-READ bit-field indicates whether or not the "VT-De-Mapper" block has generated the "Change of
LOP-V Defect Condition" Interrupt since the last read of this register. The VT-De-Mapper block will generate this
interrupt in response to either of the following conditions.
• Whenever the VT-De-Mapper block declares the LOP-V defect condition.
• Whenever the VT-De-Mapper block clears the LOP-V defect condition.
0 - Indicates that the "Change of LOP-V Defect Condition" Interrupt has NOT occurred since the last read of this
register.
1 - Indicates that the "Change of LOP-V Defect Condition" Interrupt has occurred since the last read of this register.
BIT 5 - Change of RFI-V Defect Condition Interrupt Status
This RESET-upon-READ bit-field indicates whether or not the "VT-De-Mapper" block has generated the "Change of
RFI-V Defect Condition" Interrupt since the last read of this register. The VT-De-Mapper block will generate this interrupt
in response to either of the following conditions.
• Whenever the VT-De-Mapper block declares the RFI-V defect condition
• Whenever the VT-De-Mapper block clears the RFI-V defect condition.
0 - Indicates that the "Change of RFI-V Defect Condition" Interrupt has NOT occurred since the last read of this
register.
1 - Indicates that the "Change of RFI-V Defect Condition" Interrupt has occurred since the last read of this register.
BIT 4 - Change of RDI-V Defect Condition Interrupt Status
This RESET-upon-READ bit-field indicates whether or not the "VT-De-Mapper" block has generated the "Change of
RDI-V Defect Condition" Interrupt since the last read of this register. The VT-De-Mapper block will generate this
interrupt in response to either of the following conditions.
• Whenever the VT-De-Mapper block declares the RDI-V defect condition.
• Whenever the VT-De-Mapper block clears the RDI-V defect condition.
0 - Indicates that the "Change of RDI-V Defect Condition" Interrupt has NOT occurred since the last read of this
register.
1 - Indicates that the "Change of RDI-V Defect Condition" Interrupt has occurred since the last read of this register.
278
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
BIT 3 - Change of AIS-V Failure Condition Interrupt Status
This RESET-upon-READ bit-field indicates whether or not the "VT-De-Mapper" block has generated the "Change of
AIS-V Failure Condition" Interrupt since the last read of this register. The VT-De-Mapper block will generate this
interrupt in response to either of the following conditions.
• Whenever the VT-De-Mapper block declares the AIS-V failure condition.
• Whenever the VT-De-Mapper block clears the AIS-V failure condition.
0 - Indicates that the "Change of AIS-V Failure Condition" Interrupt has NOT occurred since the last read of this
register.
1 - Indicates that the "Change of AIS-V Failure Condition" Interrupt has occurred since the last read of this register.
BIT 2 - Change of AIS-V Defect Condition Interrupt Status
This RESET-upon-READ bit-field indicates whether or not the "VT-De-Mapper" block has generated the "Change of
AIS-V Defect Condition" Interrupt since the last read of this register. The VT-De-Mapper block will generate this interrupt
in response to either of the following conditions.
• Whenever the VT-De-Mapper block declares the AIS-V defect condition.
• Whenever the VT-De-Mapper block clears the AIS-V defect condition.
0 - Indicates that the "Change of AIS-V Defect Condition" Interrupt has NOT occurred since the last read of this
register.
1 - Indicates that the "Change of AIS-V Defect Condition" Interrupt has occurred since the last read of this register.
BIT 1 - Change of VT Label Value Interrupt Status
This RESET-upon-READ bit-field indicates whether or not the "Change of VT Label Value" Interrupt has occurred since
the last read of this register. The VT-De-Mapper block will generate this interrupt anytime it has "accepted" a new VT
Label value (that it has received via the V5 byte within the incoming VT data-stream).
0 - Indicates that the "Change of VT Label Value" Interrupt has NOT occurred since the last read of this register.
1 - Indicates that the "Change of VT Label Value" Interrupt has occurred since the last read of this register.
BIT 0 - Change of E1 AIS Defect Condition Interrupt Status
This RESET-upon-READ bit-field indicates whether or not the "Change of E1 AIS Defect Condition" Interrupt has
occurred since the last read of this register. The VT-Mapper block will generate this interrupt in response to any one of
the following conditions.
• Whenever the VT-Mapper block declares the E1 AIS Defect (with the Ingress Direction E1 traffic).
• Whenever the VT-Mapper block clears the E1 AIS Defect (within the Ingress Direction E1 traffic).
0 - Indicates that the "Change of E1 AIS Defect Condition" Interrupt has NOT occurred since the last read of this
register.
1 - Indicates that the "Change of E1 AIS Defect Condition" Interrupt has occurred since the last read of this register.
279
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
TABLE 256: CHANNEL CONTROL - VT-DEMAPPER TANDEM CONNECTION INTERRUPT STATUS REGISTER
(VTDTCISR = 0XND66)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
Reserved
TC RDI
Defect
Interrupt
Status
TC ODI
Defect
Interrupt
Status
TC API
Message
Mismatch
Defect
Interrupt
Status
Unstable
TC API
Message
Defect
Interrupt
Status
TC LOMF
Interrupt
Status
TC UNEQ
Defect
Interrupt
Status
TC AIS
Defect
Interrupt
Status
RUR
RUR
RUR
RUR
RUR
RUR
RUR
RUR
0
0
0
0
0
0
0
0
BIT 7 - Reserved:
BIT 6 - Change of TC RDI-V Defect Interrupt Status:
This RESET-upon-READ bit-field indicates whether or not the "VT-De-Mapper" block has generated the "Change of
Tandem Connection Remote Defect Indicator Condition" Interrupt since the last read of this register. The VT-DeMapper block will generate this interrupt in response to either of the following conditions.
• Whenever the VT-De-Mapper block declares the TC RDI-V defect condition.
• Whenever the VT-De-Mapper block clears the TC RDI-V defect condition.
0 - Indicates that the "Change of TC RDI-V Defect Condition" Interrupt has NOT occurred since the last read of this
register.
1 - Indicates that the "Change of TC RDI-V Defect Condition" Interrupt has occurred since the last read of this register.
BIT 5 - Change of TC ODI-V Defect Interrupt Status:
This RESET-upon-READ bit-field indicates whether or not the "VT-De-Mapper" block has generated the "Change of
Tandem Connection Outgoing Defect Indicator Condition" Interrupt since the last read of this register. The VT-DeMapper block will generate this interrupt in response to either of the following conditions.
• Whenever the VT-De-Mapper block declares the TC ODI-V defect condition.
• Whenever the VT-De-Mapper block clears the TC ODI-V defect condition.
0 - Indicates that the "Change of TC ODI-V Defect Condition" Interrupt has NOT occurred since the last read of this
register.
1 - Indicates that the "Change of TC ODI-V Defect Condition" Interrupt has occurred since the last read of this register.
BIT 4 - Change of TC API-V Message Mismatch Defect Interrupt Status:
This RESET-upon-READ bit-field indicates whether or not the "VT-De-Mapper" block has generated the "Change of
Tandem Connection Access Point Identifier Message Mismatch Condition" Interrupt since the last read of this register.
The VT-De-Mapper block will generate this interrupt in response to either of the following conditions.
• Whenever the VT-De-Mapper block declares the TC API-V Message Mismatch defect condition.
• Whenever the VT-De-Mapper block clears the TC API-V Message Mismatch defect condition.
0 - Indicates that the "Change of TC API-V Message Mismatch Defect Condition" Interrupt has NOT occurred since
the last read of this register.
1 - Indicates that the "Change of TC API-V Message Mismatch Defect Condition" Interrupt has occurred since the last
read of this register.
280
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
BIT 3 - Change of Unstable TC API-V Message Defect Interrupt Status:
This RESET-upon-READ bit-field indicates whether or not the "VT-De-Mapper" block has generated the "Change of
Unstable Tandem Connection Access Point Identifier Message Defect Condition" Interrupt since the last read of this
register. The VT-De-Mapper block will generate this interrupt in response to either of the following conditions.
• Whenever the VT-De-Mapper block declares the Unstable TC API-V Message defect condition.
• Whenever the VT-De-Mapper block clears the Unstable TC API-V Message defect condition.
0 - Indicates that the "Change of Unstable TC API-V Message Defect Condition" Interrupt has NOT occurred since
the last read of this register.
1 - Indicates that the "Change of Unstable TC API-V Message Defect Condition" Interrupt has occurred since the last
read of this register.
BIT 2 - Change of TC LOMF-V Interrupt Status:
This RESET-upon-READ bit-field indicates whether or not the "VT-De-Mapper" block has generated the "Change of
Tandem Connection Loss of Multiframe Defect Condition" Interrupt since the last read of this register. The VT-DeMapper block will generate this interrupt in response to either of the following conditions.
• Whenever the VT-De-Mapper block declares the TC LOMF-V defect condition.
• Whenever the VT-De-Mapper block clears the TC LOMF-V defect condition.
0 - Indicates that the "Change of TC LOMF-V Defect Condition" Interrupt has NOT occurred since the last read of this
register.
1 - Indicates that the "Change of TC LOMF-V Defect Condition" Interrupt has occurred since the last read of this
register.
BIT 1 - Change of TC UNEQ-V Defect Interrupt Status:
This RESET-upon-READ bit-field indicates whether or not the "VT-De-Mapper" block has generated the "Change of
Tandem Connection Unequipped Indication Signal Condition" Interrupt since the last read of this register. The VT-DeMapper block will generate this interrupt in response to either of the following conditions.
• Whenever the VT-De-Mapper block declares the TC UNEQ-V defect condition.
• Whenever the VT-De-Mapper block clears the TC UNEQ-V defect condition.
0 - Indicates that the "Change of TC UNEQ-V Defect Condition" Interrupt has NOT occurred since the last read of this
register.
1 - Indicates that the "Change of TC UNEQ-V Defect Condition" Interrupt has occurred since the last read of this
register.
BIT 0 - Change of TC AIS-V Defect Interrupt Status:
This RESET-upon-READ bit-field indicates whether or not the "VT-De-Mapper" block has generated the "Change of
Tandem Connection Alarm Indication Signal Defect Condition" Interrupt since the last read of this register. The VT-DeMapper block will generate this interrupt in response to either of the following conditions.
• Whenever the VT-De-Mapper block declares the TC AIS-V defect condition.
• Whenever the VT-De-Mapper block clears the TC AIS-V defect condition.
0 - Indicates that the "Change of TC AIS-V Defect Condition" Interrupt has NOT occurred since the last read of this
register.
1 - Indicates that the "Change of TC AIS-V Defect Condition" Interrupt has occurred since the last read of this register.
281
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 257: CHANNEL CONTROL - VT-DEMAPPER INTERRUPT STATUS REGISTER 0 (VTDISR0 = 0XND67)
BIT 7
BIT 6
Reserved
BIT 5
BIT 4
BIT 3
Change of
VT Path
Trace
Message
Unstable
Defect
Condition
Interrupt
Status
New VT Path
Trace
Message
Interrupt
Status
Change of
TIM-V
Defect
Condition
Interrupt
Status
BIT 2
BIT 1
BIT 0
Reserved
R/O
R/O
RUR
RUR
RUR
R/O
R/O
R/O
0
0
0
0
0
0
0
0
BIT [7:6] - Reserved:
BIT 5 - Change of VT Path Trace Message Unstable Defect Condition Interrupt Status:
This RESET-upon-READ bit-field indicates whether or not the "Change of VT Path Trace Message Unstable Defect
Condition" Interrupt has occurred since the last read of this register. The VT-De-Mapper block will generate this interrupt
in response to either of the following conditions.
• Whenever the VT-De-Mapper block declares the "VT Path Trace Message Unstable" Defect condition.
• Whenever the VT De-Mapper block clears the "VT Path Trace Message Unstable" Defect condition.
0 - Indicates that the "Change of VT Path Trace Message Unstable Defect Condition" Interrupt has NOT occurred
since the last read of this register.
1 - Indicates that the "Change of VT Path Trace Message Unstable Defect Condition" Interrupt has occurred since
the last read of this register.
BIT 4 - New VT Path Trace Message Interrupt Status:
This RESET-upon-READ bit-field indicates whether or not the "New VT Path Trace Message" Interrupt has occurred
since the last read of this register. The VT-De-Mapper block will generate this interrupt whenever it has "accepted" a
new "VT Path Trace Message" via the incoming VT-data-stream.
0 - Indicates that the "New VT Path Trace Message" Interrupt has NOT occurred since the last read of this register.
1 - Indicates that the "New VT Path Trace Message" Interrupt has occurred since the last read of this register.
BIT 3 - Change of TIM-V Defect Condition Interrupt Status:
This RESET-upon-READ bit-field indicates whether or not the "VT-De-Mapper" block has generated the "Change of
TIM-V Defect Condition" interrupt since the last read of this register. The VT-De-Mapper block will generate this
interrupt in response to either of the following conditions.
• Whenever it declares the TIM-V Defect condition.
• Whenever it clears the TIM-V Defect condition.
0 - Indicates that the "Change of TIM-V Defect Condition" interrupt has NOT occurred since the last read of this
register.
1 - Indicates that the "Change of TIM-V Defect Condition" interrupt has occurred since the last read of this register.
BIT [2:0] - Reserved:
282
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 258: CHANNEL CONTROL - VT-DEMAPPER INTERRUPT ENABLE REGISTER 2 (VTDIER2 = 0XND68)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
Reserved
BIT 1
BIT 0
Change of
Receive APS
Value
Interrupt
Enable
Elastic Store
Overflow
Event
Interrupt
Enable
R/O
R/O
R/O
R/O
R/O
R/O
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:2] - Reserved:
BIT 1 - Change of Receive APS Value Interrupt Enable:
This READ/WRITE bit-field permits the user to either enable or disable the "Change of Receive APS Value" Interrupt.
If the user enables this interrupt, then the VT-De-Mapper block will generate this interrupt anytime it has "accepted" a
new APS value (via the K4 byte within the incoming VT-data-stream).
0 - Disables the "Change of Receive APS Value" Interrupt.
1 - Enables the "Change of Receive APS Value" Interrupt.
BIT 0 - Transmit or Receive Elastic Store Overflow Event Interrupt Enable:
This READ/WRITE bit-field permits the user to either enable or disable the "Elastic Store Overflow Event" interrupt. If
the user enables this interrupt, then the channel will generate this interrupt in response to either of the following
conditions.
• Whenever the "Transmit FIFO" within the VT-Mapper Block, experiences an overflow event.
• Whenever the "Receive FIFO" within the VT-De-Mapper block, experiences an overflow event.
0 - Disables the "Elastic Store Overflow Event" Interrupt.
1 - Enables the "Elastic Store Overflow Event" Interrupt.
283
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
TABLE 259: CHANNEL CONTROL - VT-DE-MAPPER INTERRUPT ENABLE REGISTER 1 (VTDIER1 = 0XND69)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
VT Size
Error
Interrupt
Enable
Change of
LOP-V
Defect
Condition
Interrupt
Enable
Change of
RFI-V Defect
Condition
Interrupt
Enable
Change of
RDI-V Defect
Condition
Interrupt
Enable
Change of
AIS-V
Failure
Condition
Interrupt
Enable
Change of
AIS-V Defect
Condition
Interrupt
Enable
Change of
VT Label
Interrupt
Enable
Change of
E1 AIS
Defect
Condition
Interrupt
Enable
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT 7 - VT Size Error Interrupt Enable:
This READ/WRITE bit-field permits the user to either enable or disable the "VT Size Error" Interrupt. If the user enables
this interrupt, then the "VT-De-Mapper" block will generate this interrupt anytime it declares the "VT Size Error" defect
condition.
0 - Disables the "VT Size Error" Interrupt.
1 - Enables the "VT Size Error" Interrupt.
BIT 6 - Change of LOP-V Defect Condition Interrupt Enable:
This READ/WRITE bit-field permits the user to either enable or disable the "Change of LOP-V Defect Condition"
Interrupt. If the user enables this interrupt, then the "VT-De-Mapper" block will generate this interrupt in response to
either of the following conditions.
• Whenever it declares the LOP-V Defect Condition.
• Whenever it clears the LOP-V Defect condition.
0 - Disables the "Change of LOP-V Defect Condition" Interrupt.
1 - Enables the "Change of LOP-V Defect Condition" Interrupt.
BIT 5 - Change of RFI-V Defect Condition Interrupt Enable:
This READ/WRITE bit-field permits the user to either enable or disable the "Change of RFI-V Defect Condition"
Interrupt. If the user enables this interrupt, then the "VT-De-Mapper" block will generate this interrupt in response to
either of the following conditions.
• Whenever it declares the RFI-V Defect Condition.
• Whenever it clears the RFI-V Defect condition.
0 - Disables the "Change of RFI-V Defect Condition" Interrupt.
1 - Enables the "Change of RFI-V Defect Condition" Interrupt.
BIT 4 - Change of RDI-V Defect Condition Interrupt Enable:
This READ/WRITE bit-field permits the user to either enable or disable the "Change of RDI-V Defect Condition"
Interrupt. If the user enables this interrupt, then the "VT-De-Mapper" block will generate this interrupt in response to
either of the following conditions.
• Whenever it declares the RDI-V Defect Condition.
• Whenever it clears the RDI-V Defect condition.
0 - Disables the "Change of RDI-V Defect Condition" Interrupt.
1 - Enables the "Change of RDI-V Defect Condition" Interrupt.
284
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
BIT 3 - Change of AIS-V Failure Condition Interrupt Enable:
This READ/WRITE bit-field permits the user to either enable or disable the "Change of AIS-V Failure Condition"
Interrupt. If the user enables this interrupt, then the "VT-De-Mapper" block will generate this interrupt in response to
either of the following conditions.
• Whenever it declares the AIS-V Failure Condition.
• Whenever it clears the AIS-V Failure condition.
0 - Disables the "Change of AIS-V Failure Condition" Interrupt.
1 - Enables the "Change of AIS-V Failure Condition" Interrupt.
BIT 2 - Change of AIS-V Defect Condition Interrupt Enable:
This READ/WRITE bit-field permits the user to either enable or disable the "Change of AIS-V Defect Condition"
Interrupt. If the user enables this interrupt, then the "VT-De-Mapper" block will generate this interrupt in response to
either of the following conditions.
• Whenever it declares the AIS-V Defect Condition.
• Whenever it clears the AIS-V Defect condition.
0 - Disables the "Change of AIS-V Defect Condition" Interrupt.
1 - Enables the "Change of AIS-V Defect Condition" Interrupt.
BIT 1 - Change of VT Label Value Interrupt Enable:
This READ/WRITE bit-field permits the user to either enable or disable the "Change of VT Label Value" Interrupt. If the
user enables this interrupt, then the "VT-De-Mapper" block will generate this interrupt anytime it has "accepted" a new
"VT Label Value" via the V5 bytes within the incoming VT-data-stream.
0 - Disables the "Change of VT Label Value" Interrupt.
1 - Enables the "Change of VT Label Value" Interrupt.
BIT 0 - Change of E1 AIS Defect Condition Interrupt Enable:
This READ/WRITE bit-field permits the user to either enable or disable the "Change of E1 AIS Defect Condition"
interrupt. If the user enables this interrupt, then the "VT-Mapper" block will generate this interrupt in response to either
of the following events.
• Whenever it declares the E1 AIS defect condition.
• Whenever it clears the E1 AIS defect condition.
0 - Disables the "Change of E1 AIS Defect Condition" interrupt.
1 - Enables the "Change of E1 AIS Defect Condition" interrupt.
285
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
TABLE 260: CHANNEL CONTROL - VT-DE-MAPPER TANDEM CONNECTION INTERRUPT ENABLE REGISTER
(VTDTCIER = 0XND6A)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
Reserved
TC RDI
Defect
Interrupt
Enable
TC ODI
Defect
Interrupt
Enable
TC API
Message
Mismatch
Defect
Interrupt
Enable
Unstable
TC API
Message
Defect
Interrupt
Enable
TC LOMF
Interrupt
Enable
TC UNEQ
Defect
Interrupt
Enable
TC AIS
Defect
Interrupt
Enable
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT 7 - Reserved:
BIT 6 - Change of TC RDI-V Defect Condition Interrupt Enable:
This READ/WRITE bit-field permits the user to either enable or disable the "Change of TC RDI-V Defect Condition"
Interrupt. If the user enables this interrupt, then the "VT-De-Mapper" block will generate this interrupt in response to
either of the following conditions.
• Whenever it declares the TC RDI-V Defect Condition.
• Whenever it clears the TC RDI-V Defect condition.
0 - Disables the "Change of TC RDI-V Defect Condition" Interrupt.
1 - Enables the "Change of TC RDI-V Defect Condition" Interrupt.
BIT 5 - Change of TC ODI-V Defect Condition Interrupt Enable:
This READ/WRITE bit-field permits the user to either enable or disable the "Change of TC ODI-V Defect Condition"
Interrupt. If the user enables this interrupt, then the "VT-De-Mapper" block will generate this interrupt in response to
either of the following conditions.
• Whenever it declares the TC ODI-V Defect Condition.
• Whenever it clears the TC ODI-V Defect condition.
0 - Disables the "Change of TC ODI-V Defect Condition" Interrupt.
1 - Enables the "Change of TC ODI-V Defect Condition" Interrupt.
BIT 4 - Change of TC API-V Message Mismatch Condition Interrupt Enable:
This READ/WRITE bit-field permits the user to either enable or disable the "Change of TC API-V Message Mismatch
Condition" Interrupt. If the user enables this interrupt, then the "VT-De-Mapper" block will generate this interrupt in
response to either of the following conditions.
• Whenever it declares the TC API-V Message Mismatch Condition.
• Whenever it clears the TC API-V Message Mismatch condition.
0 - Disables the "Change of TC API-V Message Mismatch Condition" Interrupt.
1 - Enables the "Change of TC API-V Message Mismatch Condition" Interrupt.
BIT 3 - Change of Unstable TC API-V Message Defect Condition Interrupt Enable:
This READ/WRITE bit-field permits the user to either enable or disable the "Change of Unstable TC API-V Message
Defect Condition" Interrupt. If the user enables this interrupt, then the "VT-De-Mapper" block will generate this interrupt
in response to either of the following conditions.
• Whenever it declares the Unstable TC API-V Message defect condition.
• Whenever it clears the Unstable TC API-V Message defect condition.
0 - Disables the "Change of Unstable API-V Message Defect Condition" Interrupt.
1 - Enables the "Change of Unstable API-V Message Defect Condition" Interrupt.
286
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
BIT 2 - Change of TC LOMF-V Defect Condition Interrupt Enable:
This READ/WRITE bit-field permits the user to either enable or disable the "Change of TC LOMF-V Defect Condition"
Interrupt. If the user enables this interrupt, then the "VT-De-Mapper" block will generate this interrupt in response to
either of the following conditions.
• Whenever it declares the TC LOMF-V Defect Condition.
• Whenever it clears the TC LOMF-V Defect condition.
0 - Disables the "Change of TC LOMF-V Defect Condition" Interrupt.
1 - Enables the "Change of TC LOMF-V Defect Condition" Interrupt.
BIT 1 - Change of TC UNEQ-V Indication Signal Condition Interrupt Enable:
This READ/WRITE bit-field permits the user to either enable or disable the "Change of TC UNEQ-V Indication Signal
Condition" Interrupt. If the user enables this interrupt, then the "VT-Mapper" block will generate this interrupt in response
to either of the following events.
• Whenever it declares the TC UNEQ-V Indication Signal condition.
• Whenever it clears the TC UNEQ-V Indication Signal condition.
0 - Disables the "Change of TC UNEQ-V Indication Signal" Interrupt.
1 - Enables the "Change of TC UNEQ-V Indication Signal" Interrupt.
BIT 0 - Change of TC AIS-V Defect Condition Interrupt Enable:
This READ/WRITE bit-field permits the user to either enable or disable the "Change of TC AIS-V Defect Condition"
interrupt. If the user enables this interrupt, then the "VT-Mapper" block will generate this interrupt in response to either
of the following events.
• Whenever it declares the TC AIS-V defect condition.
• Whenever it clears the TC AIS-V defect condition.
0 - Disables the "Change of TC AIS-V Defect Condition" interrupt.
1 - Enables the "Change of TC AIS-V Defect Condition" interrupt.
287
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
TABLE 261: CHANNEL CONTROL - VT-DE-MAPPER INTERRUPT ENABLE REGISTER 0 (VTDIER0 = 0XND6B)
BIT 7
BIT 6
Reserved
BIT 5
BIT 4
BIT 3
Change of
VT Path
Trace
Message
Unstable
Defect
Condition
Interrupt
Enable
New VT Path
Trace
Message
Interrupt
Enable
Change of
TIM-V
Defect
Condition
Interrupt
Enable
BIT 2
BIT 1
BIT 0
Reserved
R/O
R/O
R/W
R/W
R/W
R/O
R/O
R/O
0
0
0
0
0
0
0
0
BIT [7:6] - Reserved:
BIT 5 - Change of VT Path Trace Message Unstable Defect Condition Interrupt Enable:
This READ/WRITE bit-field permits the user to either enable or disable the "Change of VT Path Trace Message
Unstable Defect Condition" interrupt. If the user enables this interrupt, then the VT-De-Mapper block will generate this
interrupt in response to either of the following events.
• Whenever the VT-De-Mapper block declares the "VT-Path Trace Message Unstable" defect condition.
• Whenever the VT-De-Mapper block clears the "VT-Path Trace Message Unstable" defect condition.
0 - Disables the "Change of VT Path Trace Message Unstable Defect Condition" Interrupt.
1 - Enables the "Change of VT Path Trace Message Unstable Defect Condition" Interrupt.
BIT 4 - New VT Path Trace Message Interrupt Enable:
This READ/WRITE bit-field permits the user to either enable or disable the "New VT Path Trace Message" Interrupt. If
the user enables this interrupt, then the VT-De-Mapper block will generate this interrupt whenever it has "accepted" a
new "VT Path Trace Message" via the incoming VT-data-stream.
0 - Disables the "New VT Path Trace Message" Interrupt.
1 - Enables the "New VT Path Trace Message" Interrupt.
BIT 3 - Change of TIM-V Defect Condition Interrupt Enable:
This READ/WRITE bit-field permits the user to either enable or disable the "Change of TIM-V Defect Condition"
Interrupt. If the user enables this interrupt, then the VT-De-Mapper block will generate this interrupt in response to either
of the following events.
• Whenever it declares the TIM-V Defect Condition.
• Whenever it clears the TIM-V Defect Condition.
0 - Disables the "Change of TIM-V Defect Condition" Interrupt.
1 - Enables the "Change of TIM-V Defect Condition" Interrupt.
BIT [2:0] - Reserved:
288
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 262: CHANNEL CONTROL - VT-DE-MAPPER PATH TRACE BUFFER CONTROL REGISTER (VTDPTBCR =
0XND71)
BIT 7
BIT 6
Receive TC Enable [1:0]
BIT 5
BIT 4
BIT 3
BIT 2
Reserved
Receive VT
Path Trace
Message
Buffer Select
VT Path
Trace Message Accept
Threshold
VT Path
Trace
Message
Type
BIT 1
BIT 0
VT Path Trace Message
Length[1:0]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:6] - Received TC Enable[1:0]:
These two READ/WRITE bit-fields are used to enable the Tandem Connection feature in the VT DeMapper. The VT
Path Trace Message Length [1:0] on Bit-1 and Bit-0 must be set to the value "0x01" or "0x00" depending on the expected
16 bytes or 1 byte message length.
The relationship between the contents of these bit-fields and the corresponding Receive Tandem Connection
Messaging Type is presented below.
RECEIVE TC ENABLE[1:0]
RECEIVE TANDEM CONNECTION OPERATION
00
Tandem Connection feature is disabled.
01
Tandem Connection Enabled for 16-Byte Messaging Operation. The N2
Byte Messaging memory buffer segment is shared with the J2 64-Byte
memory buffer. 16-Bytes message length must be selected using the
appropriate values written on VT Path Trace Message Length[1:0] Bit-1
and Bit-0.
10
Reserved.
11
Tandem Connection Enabled for 1-Byte Messaging Operation. 1-Byte
message length must be selected using the appropriate values written on
VT Path Trace Message Length[1:0] Bit-1 and Bit-0.
BIT 5 - Reserved:
BIT 4 - Received VT Path Trace Message Buffer Select:
This READ/WRITE bit-field permits a user to specify which of the following "Receive VT Path Trace Message" buffer
segments that the Microprocessor will read out whenever it reads out the contents of the Receive Path Trace Message
buffer.
•
The "Actual" Receive VT Path Trace Message Buffer. The "Actual" Receive VT Path Trace Message Buffer
contains the contents of the most recently received (and accepted) VT Path Trace Messages via the incoming
VT-data-stream.
•
The "Expected" Receive VT Path Trace Message Buffer. The "Expected" Receive Path Trace Message
Buffer contains the contents of the "VT Path Trace Message" that the user "expects" to receive. The contents
of this particular buffer are usually specified by the user.
0 - Configures the chip to return the contents of the "Actual" Receive VT Path Trace Message" Buffer, whenever the
user executes a READ to the "Receive VT Path Trace Message" Buffer.
1 - Configures the chip to return the contents of the "Expected" Receive VT Path Trace Message" Buffer, whenever
the user executes a READ to the "Receive VT Path Trace Message" Buffer.
BIT 3 - Receive VT Path Trace Message Accept Threshold:
This READ/WRITE bit-field permits a user to select the number of consecutive times that the "VT-De-Mapper" block
must receive a given "VT Path Trace Message" before it is "validated" and loaded into the "Actual" Receive VT Path
Trace Message Buffer, as described below.
0 - Configures the VT-De-Mapper block to "validate" the incoming VT Path Trace Message after it has received it the
289
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
third time in succession.
1 - Configures the VT-De-Mapper block to "validate" the incoming VT Path Trace Message after it has received it the
fifth time in succession.
BIT 2 - Receive VT Path Trace Message Type:
This READ/WRITE bit-field permits the user to specify how the "VT-De-Mapper" block will locate the boundary of the
incoming VT Path Trace Message (within the incoming VT-data-stream) as depicted below.
0 - Configures the VT-De-Mapper block to expect the "VT Path Trace Message" boundary to be denoted by a "Line
Feed" character.
1 - Configures the VT-De-Mapper block to except the "VT Path Trace Message" boundary to be denoted by the
presence of a "1" in the "MSB" (Most Significant bit) of the first byte (within the incoming VT Path Trace Message). In
this case, all of the remaining bytes (within the incoming VT Path Trace Message) will each have a "0" within their MSBs.
BIT [1:0] - VT Path Trace Message Length[1:0]:
These READ/WRITE bit-fields permit the user to specify the length of the "Receive VT Path Trace Message that the
"VT-De-Mapper" block will accept and load into the "Actual" Receive VT Path Trace Message Buffer. The relationship
between the contents of these bit-fields and the corresponding "Receive VT Path Trace Message" Length is presented
below.
VT PATH TRACE MESSAGE LENGTH[1:0] RESULTING VT PATH TRACE MESSAGE LENGTH (BYTES)
00
1
01
16
1X
64
290
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 263: CHANNEL CONTROL - VT-DE-MAPPER AUTO AIS CONTROL REGISTER 1 (VTDAAISCR1 = 0XND72)
BIT 7
BIT 6
Reserved
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
Auto
Transmit
AIS-V upon
AIS-V Defect
Auto
Transmit
AIS-V upon
UNEQ-V
Defect
Reserved
Auto
Transmit
AIS-V upon
LOP-V
Defect
Auto
Transmit
AIS-V upon
PLM-V
Defect
Reserved
R/O
R/O
R/W
R/W
R/O
R/W
R/W
R/O
0
0
0
0
0
0
0
0
BIT [7:6] - Reserved:
BIT 5 - Auto Transmit AIS-V upon AIS-V Defect:
This READ/WRITE bit-field permits the user to configure the VT-De-Mapper block to automatically transmit the AIS-V
indicator via the "Egress Direction" traffic (e.g., towards the Transmit E1 LIU Block), anytime (and for the duration that)
it declares the AIS-V defect condition within the incoming VT-data-stream.
0 - Does not configure the VT-De-Mapper block to automatically transmit the AIS-V indicator (via the "downstream"
traffic) whenever it declares the AIS-V defect condition.
1 - Configures the VT-De-Mapper block to automatically transmit the AIS-V indicator (via the "downstream" traffic)
whenever it declares the AIS-V defect condition.
NOTE: The user must also set Bit 0 (Auto Transmit AIS-V Enable) within the "Channel Control - VT-De-Mapper Block Egress Direction - Receive VT Auto AIS Control" Register to "1" in order to configure the VT-De-Mapper block
to automatically transmit the AIS-V indicator, in response to this defect condition.
BIT 4 - Auto Transmit AIS-V upon UNEQ-V Defect:
This READ/WRITE bit-field permits the user to configure the VT-De-Mapper block to automatically transmit the AIS-V
indicator via the "Egress Direction" traffic (e.g., towards the Transmit E1 LIU Block), anytime (and for the duration that)
it declares the UNEQ-V defect condition within the incoming VT-data-stream.
0 - Does not configure the VT-De-Mapper block to automatically transmit the AIS-V indicator (via the "downstream"
traffic) whenever it declares the UNEQ-V defect condition.
1 - Configures the VT-De-Mapper block to automatically transmit the AIS-V indicator (via the "downstream" traffic)
whenever it declares the UNEQ-V defect condition.
NOTE: The user must also set Bit 0 (Auto Transmit AIS-V Enable) within the "Channel Control - VT-De-Mapper Block Egress Direction - Receive VT Auto AIS Control" Register to "1" in order to configure the VT-De-Mapper block
to automatically transmit the AIS-V indicator, in response to this defect condition.
BIT 3 - Reserved:
BIT 2 - Auto Transmit AIS-V upon LOP-V Defect:
This READ/WRITE bit-field permits the user to configure the VT-De-Mapper block to automatically transmit the AIS-V
indicator via the "Egress Direction" traffic (e.g., towards the Transmit E1 LIU Block), anytime (and for the duration that)
it declares the LOP-V defect condition within the incoming VT-data-stream.
0 - Does not configure the VT-De-Mapper block to automatically transmit the AIS-V indicator (via the "downstream"
traffic) whenever it declares the LOP-V defect condition.
1 - Configures the VT-De-Mapper block to automatically transmit the AIS-V indicator (via the "downstream" traffic)
whenever it declares the LOP-V defect condition.
NOTE: The user must also set Bit 0 (Auto Transmit AIS-V Enable) within the "Channel Control - VT-De-Mapper Block Egress Direction - Receive VT Auto AIS Control" Register to "1" in order to configure the VT-De-Mapper block
to automatically transmit the AIS-V indicator, in response to this defect condition.
291
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
BIT 1 - Auto Transmit AIS-V upon PLM-V Defect:
This READ/WRITE bit-field permits the user to configure the VT-De-Mapper block to automatically transmit the AIS-V
indicator via the "Egress Direction" traffic (e.g., towards the Transmit E1 LIU Block), anytime (and for the duration that)
it declares the PLM-V defect condition within the incoming VT-data-stream.
0 - Does not configure the VT-De-Mapper block to automatically transmit the AIS-V indicator (via the "downstream"
traffic) whenever it declares the PLM-V defect condition.
1 - Configures the VT-De-Mapper block to automatically transmit the AIS-V indicator (via the "downstream" traffic)
whenever it declares the PLM-V defect condition.
NOTE: The user must also set Bit 0 (Auto Transmit AIS-V Enable) within the "Channel Control - VT-De-Mapper Block Egress Direction - Receive VT Auto AIS Control" Register to "1" in order to configure the VT-De-Mapper block
to automatically transmit the AIS-V indicator, in response to this defect condition.
BIT 0 - Reserved:
292
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 264: CHANNEL CONTROL - VT-DE-MAPPER AUTO AIS CONTROL REGISTER 0 (VTDAAISCR0 = 0XND73)
BIT 7
BIT 6
BIT 5
Auto
Transmit
AIS-V upon
VT Path
Trace
Message
Unstable
Defect
Auto
Transmit
AIS-V upon
TIM-V Defect
R/W
R/W
R/W
0
0
0
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
Auto
Transmit
AIS-V upon
TC LOMF-V
Defect
Auto
Transmit
AIS-V upon
TC API-V
Message
Mismatch
Defect
Auto
Transmit
AIS-V upon
TC UNEQ-V
Indication
Signal
Detect
Auto
Transmit
AIS-V
Enable
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
Auto
Auto
Transmit
Transmit
AIS-V upon
AIS-V upon
N1 Byte
N2 IAIS Bit
Alarm Defect Alarm Defect
BIT 7 - Auto Transmit AIS-V upon VT Path Trace Message Unstable Defect:
This READ/WRITE bit-field permits the user to configure the VT-De-Mapper block to automatically transmit the AIS-V
indicator via the "Egress Direction" traffic (e.g., towards the Transmit E1 LIU Block), anytime (and for the duration that)
it declares the VT Path Trace Message Unstable defect condition within the incoming VT-data-stream.
0 - Does not configure the VT-De-Mapper block to automatically transmit the AIS-V indicator (via the "downstream"
traffic) whenever it declares the VT Path Trace Message Unstable defect condition.
1 - Configures the VT-De-Mapper block to automatically transmit the AIS-V indicator (via the "downstream" traffic)
whenever it declares the VT Path Trace Message Unstable defect condition.
NOTE: The user must also set Bit 0 (Auto Transmit AIS-V Enable) within the "Channel Control - VT-De-Mapper Block Egress Direction - Receive VT Auto AIS Control" Register to "1" in order to configure the VT-De-Mapper block
to automatically transmit the AIS-V indicator, in response to this defect condition.
BIT 6 - Auto Transmit AIS-V upon TIM-V Defect:
This READ/WRITE bit-field permits the user to configure the VT-De-Mapper block to automatically transmit the AIS-V
indicator via the "Egress Direction" traffic (e.g., towards the Transmit E1 LIU Block), anytime (and for the duration that)
it declares the TIM-V defect condition within the incoming VT-data-stream.
0 - Does not configure the VT-De-Mapper block to automatically transmit the AIS-V indicator (via the "downstream"
traffic) whenever it declares the TIM-V defect condition.
1 - Configures the VT-De-Mapper block to automatically transmit the AIS-V indicator (via the "downstream" traffic)
whenever it declares the TIM-V defect condition.
NOTE: The user must also set Bit 0 (Auto Transmit AIS-V Enable) within the "Channel Control - VT-De-Mapper Block Egress Direction - Receive VT Auto AIS Control" Register to "1" in order to configure the VT-De-Mapper block
to automatically transmit the AIS-V indicator, in response to this defect condition.
BIT 5 - Auto Transmit AIS-V upon N1 Byte Alarm Defect:
This READ/WRITE bit-field permits the user to configure the VT-De-Mapper block to automatically transmit the AIS-V
indicator via the "Egress Direction" traffic (e.g., towards the Transmit E1 LIU Block), anytime (and for the duration that)
it detects an all "0" value on the received N1 Byte and declares the N1 Byte Alarm defect condition within the incoming
VT-data-stream.
0 - Does not configure the VT-De-Mapper block to automatically transmit the AIS-V indicator (via the "downstream"
traffic) whenever it declares the N1 Byte Alarm defect condition.
1 - Configures the VT-De-Mapper block to automatically transmit the AIS-V indicator (via the "downstream" traffic)
whenever it declares the N1 Byte Alarm defect condition.
NOTE: The user must also set Bit 0 (Auto Transmit AIS-V Enable) within the "Channel Control - VT-De-Mapper Block Egress Direction - Receive VT Auto AIS Control" Register to "1" in order to configure the VT-De-Mapper block
to automatically transmit the AIS-V indicator, in response to this defect condition.
293
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
BIT 4 - Auto Transmit AIS-V upon N2 IAIS Alarm Defect:
This READ/WRITE bit-field permits the user to configure the VT-De-Mapper block to automatically transmit the AIS-V
indicator via the "Egress Direction" traffic (e.g., towards the Transmit E1 LIU Block), anytime (and for the duration that)
it declares the N2 Incoming AIS Alarm defect condition within the incoming VT-data-stream.
0 - Does not configure the VT-De-Mapper block to automatically transmit the AIS-V indicator (via the "downstream"
traffic) whenever it declares the N2 Incoming AIS Alarm defect condition.
1 - Configures the VT-De-Mapper block to automatically transmit the AIS-V indicator (via the "downstream" traffic)
whenever it declares the N2 Incoming AIS Alarm defect condition.
NOTE: The user must also set Bit 0 (Auto Transmit AIS-V Enable) within the "Channel Control - VT-De-Mapper Block Egress Direction - Receive VT Auto AIS Control" Register to "1" in order to configure the VT-De-Mapper block
to automatically transmit the AIS-V indicator, in response to this defect condition.
BIT 3 - Auto Transmit AIS-V upon TC LOMF-V Alarm Defect:
This READ/WRITE bit-field permits the user to configure the VT-De-Mapper block to automatically transmit the AIS-V
indicator via the "Egress Direction" traffic (e.g., towards the Transmit E1 LIU Block), anytime (and for the duration that)
it declares the TC LOMF-V defect condition within the incoming VT-data-stream.
0 - Does not configure the VT-De-Mapper block to automatically transmit the AIS-V indicator (via the "downstream"
traffic) whenever it declares the TC LOMF-V defect condition.
1 - Configures the VT-De-Mapper block to automatically transmit the AIS-V indicator (via the "downstream" traffic)
whenever it declares the TC LOMF-V defect condition.
NOTE: The user must also set Bit 0 (Auto Transmit AIS-V Enable) within the "Channel Control - VT-De-Mapper Block Egress Direction - Receive VT Auto AIS Control" Register to "1" in order to configure the VT-De-Mapper block
to automatically transmit the AIS-V indicator, in response to this defect condition.
BIT 2 - Auto Transmit AIS-V upon TC API-V Message Mismatch Defect:
This READ/WRITE bit-field permits the user to configure the VT-De-Mapper block to automatically transmit the AIS-V
indicator via the "Egress Direction" traffic (e.g., towards the Transmit E1 LIU Block), anytime (and for the duration that)
it declares the TC API-V Message Mismatch defect condition within the incoming VT-data-stream.
0 - Does not configure the VT-De-Mapper block to automatically transmit the AIS-V indicator (via the "downstream"
traffic) whenever it declares the TC API-V Message Mismatch defect condition.
1 - Configures the VT-De-Mapper block to automatically transmit the AIS-V indicator (via the "downstream" traffic)
whenever it declares the TC API-V Message Mismatch defect condition.
NOTE: The user must also set Bit 0 (Auto Transmit AIS-V Enable) within the "Channel Control - VT-De-Mapper Block Egress Direction - Receive VT Auto AIS Control" Register to "1" in order to configure the VT-De-Mapper block
to automatically transmit the AIS-V indicator, in response to this defect condition.
BIT 1 - Auto Transmit AIS-V upon TC UNEQ-V Indication Signal Condition:
This READ/WRITE bit-field permits the user to configure the VT-De-Mapper block to automatically transmit the AIS-V
indicator via the "Egress Direction" traffic (e.g., towards the Transmit E1 LIU Block), anytime (and for the duration that)
it declares the TC UNEQ-V Indication Signal condition within the incoming VT-data-stream.
0 - Does not configure the VT-De-Mapper block to automatically transmit the AIS-V indicator (via the "downstream"
traffic) whenever it declares the TC UNEQ-V Indication Signal condition.
1 - Configures the VT-De-Mapper block to automatically transmit the AIS-V indicator (via the "downstream" traffic)
whenever it declares the TC UNEQ-V Indication Signal condition.
NOTE: The user must also set Bit 0 (Auto Transmit AIS-V Enable) within the "Channel Control - VT-De-Mapper Block Egress Direction - Receive VT Auto AIS Control" Register to "1" in order to configure the VT-De-Mapper block
to automatically transmit the AIS-V indicator, in response to this defect condition.
294
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
BIT 0 - Auto Transmit AIS-V Enable:
This READ/WRITE bit-field permits the user to configure the VT-De-Mapper block to automatically transmit the AIS-V
indicator (via the down-stream traffic) whenever (and for the duration that) it declares either the AIS-V, LOP-V, TIM-V,
UNEQ-V, PLM-V or "VT Path Trace Message Unstable" defect conditions.
0 - Configures the VT-De-Mapper block to NOT automatically transmit the AIS-V indicator (via the "downstream
traffic) upon declaration of any of the "above-mentioned" defect conditions.
1 - Configures the VT-De-Mapper block to automatically transmit the AIS-V indicator (via the "downstream traffic)
upon declaration of any of the "above-mentioned" defect conditions.
NOTE: The user must also set the corresponding bit-fields (within this register) to "1" in order to configure the VT-DeMapper block to automatically transmit the AIS-V indicator upon detection of a given alarm/defect condition.
295
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
TABLE 265: CHANNEL CONTROL - VT-MAPPER TRANSMIT J2 BYTE VALUE REGISTER (VTMJ2VR = 0XND76)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
Transmit J2 Byte Value[7:0]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:0] - Transmit J2 Byte Value[7:0]:
These READ/WRITE bit-fields permit the user to have software control over the value of the J2 byte, within the outbound
VT data-stream for the 1-byte message only. For 16-byte or 64-byte, a memory buffer register 0xNF00 - 0xNF3F must
be used. Note: The memory buffers can be used to send a 1-byte J2 message, however there is only one memory buffer.
Therefore, the main differnece is that this register (0xND76) can send 21 independent 1-byte J2 messages. The memory
buffer can only send one at a time (see register 0x0C02).
If the user configures the VT-Mapper block to use this register as the source of the J2 byte, then it will automatically
write the contents of this register into the J2 byte location, within each "outbound" VT multi-frame.
This feature is enabled whenever the user writes the value "[1, 0]" into Bits 1 and 0 (Transmit VT-Path Trace Message
Source[1:0]) within the "Channel Control - VT Mapper Block - Ingress Direction - VT Path Trace Message Control"
Register.
TABLE 266: CHANNEL CONTROL - VT-MAPPER TRANSMIT N2 BYTE VALUE REGISTER (VTMN2VR = 0XND77)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
Transmit N2 Byte Value[7:0]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:0] - Transmit N2 Byte Value[7:0]:
These READ/WRITE bit-fields permit the user to have software control over the value of the N2 byte, within the
outbound VT data-stream.
The VT-Mapper block will (unconditionally) use this register as the source of the N2 byte, then it will automatically write
the contents of this register into the N2 byte location, within each "outbound" VT multi-frame.
296
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 267: CHANNEL CONTROL - VT-MAPPER TRANSMIT PATH TRACE MESSAGE CONTROL REGISTER
(VTMPTMCR = 0XND79)
BIT 7
BIT 6
Transmit TC Enable[1:0]
BIT 5
BIT 4
Transmit
IAIS
Reserved
BIT 3
BIT 2
Transmit VT Path Trace
Message Length[1:0]
BIT 1
BIT 0
Transmit VT Path Trace
Message Source[1:0]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:6] - Transmit TC Enable[1:0]:
These READ/WRITE bit-fields are used to enable the Tandem Connection feature in the VT Mapper. The VT Path
Trace Message Length [1:0] on Bit-3 and Bit-2 must be set to the value "0x00" or "0x01" depending on the desired 1Byte or 16-Bytes message length.
The relationship between the contents of these bit-fields and the corresponding Transmit Tandem Connection
Messaging Type is presented below.
TRANSMIT TC ENABLE[1:0]
TRANSMIT TANDEM CONNECTION OPERATION
00
Tandem Connection feature is disabled. The N2 byte transmitted is the
value written on N2 byte software register 0xND77.
01
Tandem Connection Enabled for 16-Bytes Messaging Operation. The N2
Byte Messaging memory buffer segment is shared with the J2 64-Byte
memory buffer. The written value is transmitted along with the multiframe
alignment pattern, and TC ODI and TC RDI. 16-Bytes message length
must be selected using the appropriate values written on VT Path Trace
Message Length[1:0] Bit-3 and Bit-2.
10
Reserved.
11
Tandem Connection Enabled for 1-Byte Messaging Operation. The N2
byte transmitted is the value written on N2 byte software register 0xND77.
The written value is transmitted along with the multiframe alignment pattern, and TC ODI and TC RDI. 1-Byte message length must be selected
using the appropriate values written on VT Path Trace Message
Length[1:0] Bit-3 and Bit-2.
BIT 5 - Transmit IAIS Bit:
This READ/WRITE bit-field contain the value that will be written on the Incoming AIS bit on Bit-4 of the transmitted N2
byte.
0 - The bit value "0" will be transmitted on Bit-4 of the transmitted N2 byte.
1 - The bit value "1" will be transmitted on Bit-4 of the transmitted N2 byte.
BIT 4 - Reserved:
297
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
BIT [3:2] - Transmit VT Path Trace Message Length[1:0]:
These READ/WRITE bit-fields permit the user to specify the length of the VT Path Trace Message that the VT-Mapper
block will repeatedly transmit to the remote VT PTE. The relationship between the contents of these bit-fields and the
corresponding VT Path Trace Message Length is presented below.
TRANSMIT VT PATH TRACE MESSAGE LENGTH[1:0] RESULTING VT PATH TRACE MESSAGE BYTE LENGTH
00
1 Byte
01
16 Bytes
1X
64 Bytes
BIT [1:0] - Transmit VT Path Trace Message Source[1:0]:
These READ/WRITE bit-fields permit the user to specify the source of the "outbound" VT Path Trace Message that will
transported via the J2 byte channel (within the outbound VT-data-stream) as depicted below.
TRANSMIT VT PATH TRACE
MESSAGE SOURCE[1:0]
RESULTING SOURCE OF THE VT PATH TRACE MESSAGE
00
Fixed Value:
The VT-Mapper block will automatically set the J2 byte, within the each
outbound VT-multi-frame to the value "0x01".
01
The Transmit VT Path Trace Message Buffer:
The VT-Mapper Block will read out the contents within the "Transmit
VT-Path Trace Message" Buffer, and will transmit this message to the
remote VT PTE.
10
From the "Transmit J2 Byte Value[7:0]" Register:
In this setting, the VT-Mapper block will read out the contents of the
"Transmit J2 Byte Value Register, and will insert this value into the J2
byte-position within each outbound VT-multi-frame.
11
DO NOT USE
298
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 268: CHANNEL CONTROL - VT-MAPPER TRANSMIT N2 CONTROL REGISTER (VTMN2CR = 0XND7B)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
Reserved
BIT 1
BIT 0
Transmit
TC UNEQ-V
with
TC BIP-2
Enable
Transmit
TC UNEQ-V
Enable
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:2] - Reserved:
BIT 1 - Transmit TC UNEQ-V with BIP-2 Enable:
These READ/WRITE bit-fields are used to enable the transmission of the Tandem Connection Unequipped Indication
Signal and the 2-bit Bit Interleave Parity feature in the VT Mapper.
0 - Disables the transmission of TC UNEQ-V.
1 - Enables the transmission of TC UNEQ-V with the generation of TC BIP-2.
BIT 0 - Transmit TC UNEQ-V Enable:
These READ/WRITE bit-fields are used to enable the transmission of the Tandem Connection Unequipped Indication
Signal feature in the VT Mapper.
0 - Disables the transmission of TC UNEQ-V.
1 - Enables the transmission of TC UNEQ-V without the generation of TC BIP-2.
299
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
TABLE 269: CHANNEL CONTROL - VT-MAPPER TRANSMIT TANDEM CONNECTION RDI-V CONTROL REGISTER 1
(VTMTCRDICR1 = 0XND7E)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
Reserved
BIT 2
BIT 1
BIT 0
Transmit
TC RDI-V
upon AIS-V
Defect
Transmit
TC RDI-V
upon LOP-V
Defect
Transmit
TC RDI-V
upon
UNEQ-V
Detect
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:3] - Reserved:
BIT 2 - Transmit TC RDI-V upon AIS-V:
This READ/WRITE bit-field permits the user to configure the VT-Mapper block to automatically transmit the Tandem
Connection RDI Code on the VC2 N2 byte towards the remote VT PTE whenever (and for the duration that) the
corresponding VT-De-Mapper block declares the AIS-V defect condition.
0 - Configures the VT-Mapper block to NOT automatically transmit the Tandem Connection RDI Code (via the N2
byte) whenever (and for the duration that) the corresponding VT-De-Mapper block declares the AIS-V defect condition.
1 - Configures the VT-Mapper block to automatically transmit the Tandem Connection RDI Code (via the N2 byte)
whenever (and for the duration that) the corresponding VT-De-Mapper block declares the AIS-V defect condition.
BIT 1 - Transmit TC RDI-V upon LOP-V:
This READ/WRITE bit-field permits the user to configure the VT-Mapper block to automatically transmit the Tandem
Connection RDI Code on the VC2 N2 byte towards the remote VT PTE whenever (and for the duration that) the
corresponding VT-De-Mapper block declares the LOP-V defect condition.
0 - Configures the VT-Mapper block to NOT automatically transmit the Tandem Connection RDI Code (via the N2
byte) whenever (and for the duration that) the corresponding VT-De-Mapper block declares the LOP-V defect condition.
1 - Configures the VT-Mapper block to automatically transmit the Tandem Connection RDI Code (via the N2 byte)
whenever (and for the duration that) the corresponding VT-De-Mapper block declares the LOP-V defect condition.
BIT 0 - Transmit TC RDI-V upon UNEQ-V:
This READ/WRITE bit-field permits the user to configure the VT-Mapper block to automatically transmit the Tandem
Connection RDI Code on the VC2 N2 byte towards the remote VT PTE whenever (and for the duration that) the
corresponding VT-De-Mapper block declares the UNEQ-V Indication Signal condition.
0 - Configures the VT-Mapper block to NOT automatically transmit the Tandem Connection RDI Code (via the N2
byte) whenever (and for the duration that) the corresponding VT-De-Mapper block declares the UNEQ-V Indication
Signal condition.
1 - Configures the VT-Mapper block to automatically transmit the Tandem Connection RDI Code (via the N2 byte)
whenever (and for the duration that) the corresponding VT-De-Mapper block declares the UNEQ-V Indication Signal
condition.
300
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 270: CHANNEL CONTROL - VT-MAPPER TRANSMIT TANDEM CONNECTION RDI-V CONTROL REGISTER 0
(VTMTCRDICR0 = 0XND7F)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
Transmit
TC RDI-V
upon PLM-V
Defect
Transmit
TC RDI-V
upon TIM-V
Defect
Transmit
TC RDI-V
upon VT
Path Trace
Message
Unstable
Defect
Transmit
TC RDI-V
upon
TC LOMF-V
Defect
Transmit
TC RDI-V
upon
TC UNEQ-V
Detect
Transmit
TC RDI-V
upon IAIS
Defect
Transmit
TC RDI-V
upon
TC API-V
Message
Mismatch
Defect
Transmit
TC RDI-V
upon
TC API-V
Message
Unstable
Defect
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT 7 - Transmit TC RDI-V upon PLM-V:
This READ/WRITE bit-field permits the user to configure the VT-Mapper block to automatically transmit the Tandem
Connection RDI Code on the VC2 N2 byte towards the remote VT PTE whenever (and for the duration that) the
corresponding VT-De-Mapper block declares the PLM-V defect condition.
0 - Configures the VT-Mapper block to NOT automatically transmit the Tandem Connection RDI Code (via the N2
byte) whenever (and for the duration that) the corresponding VT-De-Mapper block declares the PLM-V defect condition.
1 - Configures the VT-Mapper block to automatically transmit the Tandem Connection RDI Code (via the N2 byte)
whenever (and for the duration that) the corresponding VT-De-Mapper block declares the PLM-V defect condition.
BIT 6 - Transmit TC RDI-V upon TIM-V:
This READ/WRITE bit-field permits the user to configure the VT-Mapper block to automatically transmit the Tandem
Connection RDI Code on the VC2 N2 byte towards the remote VT PTE whenever (and for the duration that) the
corresponding VT-De-Mapper block declares the TIM-V defect condition.
0 - Configures the VT-Mapper block to NOT automatically transmit the Tandem Connection RDI Code (via the N2
byte) whenever (and for the duration that) the corresponding VT-De-Mapper block declares the TIM-V defect condition.
1 - Configures the VT-Mapper block to automatically transmit the Tandem Connection RDI Code (via the N2 byte)
whenever (and for the duration that) the corresponding VT-De-Mapper block declares the TIM-V defect condition.
BIT 5 - Transmit TC RDI-V upon VT Path Trace Message Unstable Defect:
This READ/WRITE bit-field permits the user to configure the VT-Mapper block to automatically transmit the Tandem
Connection RDI Code on the VC2 N2 byte towards the remote VT PTE whenever (and for the duration that) the
corresponding VT-De-Mapper block declares the VT Path Trace Message Unstable defect condition.
0 - Configures the VT-Mapper block to NOT automatically transmit the Tandem Connection RDI Code (via the N2
byte) whenever (and for the duration that) the corresponding VT-De-Mapper block declares the VT Path Trace Message
Unstable defect condition.
1 - Configures the VT-Mapper block to automatically transmit the Tandem Connection RDI Code (via the N2 byte)
whenever (and for the duration that) the corresponding VT-De-Mapper block declares the VT Path Trace Message
Unstable defect condition.
BIT 4 - Transmit TC RDI-V upon TC LOMF-V:
This READ/WRITE bit-field permits the user to configure the VT-Mapper block to automatically transmit the Tandem
Connection RDI Code on the VC2 N2 byte towards the remote VT PTE whenever (and for the duration that) the
corresponding VT-De-Mapper block declares the TC LOMF-V defect condition.
0 - Configures the VT-Mapper block to NOT automatically transmit the Tandem Connection RDI Code (via the N2
byte) whenever (and for the duration that) the corresponding VT-De-Mapper block declares the TC LOMF-V defect
condition.
1 - Configures the VT-Mapper block to automatically transmit the Tandem Connection RDI Code (via the N2 byte)
whenever (and for the duration that) the corresponding VT-De-Mapper block declares the TC LOMF-V defect condition.
301
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
BIT 3 - Transmit TC RDI-V upon TC UNEQ-V:
This READ/WRITE bit-field permits the user to configure the VT-Mapper block to automatically transmit the Tandem
Connection RDI Code on the VC2 N2 byte towards the remote VT PTE whenever (and for the duration that) the
corresponding VT-De-Mapper block declares the TC UNEQ-V defect condition.
0 - Configures the VT-Mapper block to NOT automatically transmit the Tandem Connection RDI Code (via the N2
byte) whenever (and for the duration that) the corresponding VT-De-Mapper block declares the TC UNEQ-V defect
condition.
1 - Configures the VT-Mapper block to automatically transmit the Tandem Connection RDI Code (via the N2 byte)
whenever (and for the duration that) the corresponding VT-De-Mapper block declares the TC UNEQ-V defect condition.
BIT 2 - Transmit TC RDI-V upon Incoming AIS-V:
This READ/WRITE bit-field permits the user to configure the VT-Mapper block to automatically transmit the Tandem
Connection RDI Code on the VC2 N2 byte towards the remote VT PTE whenever (and for the duration that) the
corresponding VT-De-Mapper block detects the Incoming AIS-V defect condition.
0 - Configures the VT-Mapper block to NOT automatically transmit the Tandem Connection RDI Code (via the N2
byte) whenever (and for the duration that) the corresponding VT-De-Mapper block detects the Incoming AIS defect
condition.
1 - Configures the VT-Mapper block to automatically transmit the Tandem Connection RDI Code (via the N2 byte)
whenever (and for the duration that) the corresponding VT-De-Mapper block detects the Incoming AIS defect condition.
BIT 1 - Transmit TC RDI-V upon TC API-V Message Mismatch:
This READ/WRITE bit-field permits the user to configure the VT-Mapper block to automatically transmit the Tandem
Connection RDI Code on the VC2 N2 byte towards the remote VT PTE whenever (and for the duration that) the
corresponding VT-De-Mapper block declares the TC API-V Message Mismatch defect condition.
0 - Configures the VT-Mapper block to NOT automatically transmit the Tandem Connection RDI Code (via the N2
byte) whenever (and for the duration that) the corresponding VT-De-Mapper block declares the TC API-V Message
Mismatch defect condition.
1 - Configures the VT-Mapper block to automatically transmit the Tandem Connection RDI Code (via the N2 byte)
whenever (and for the duration that) the corresponding VT-De-Mapper block declares the TC API-V Message Mismatch
defect condition.
BIT 0 - Transmit TC RDI-V upon TC API-V Message Unstable Defect:
This READ/WRITE bit-field permits the user to configure the VT-Mapper block to automatically transmit the Tandem
Connection RDI Code on the VC2 N2 byte towards the remote VT PTE whenever (and for the duration that) the
corresponding VT-De-Mapper block declares the TC API-V Message Unstable defect condition.
0 - Configures the VT-Mapper block to NOT automatically transmit the Tandem Connection RDI Code (via the N2
byte) whenever (and for the duration that) the corresponding VT-De-Mapper block declares the TC API-V Message
Unstable defect condition.
1 - Configures the VT-Mapper block to automatically transmit the Tandem Connection RDI Code (via the N2 byte)
whenever (and for the duration that) the corresponding VT-De-Mapper block declares the TC API-V Message Unstable
defect condition.
302
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 271: CHANNEL CONTROL - VT-MAPPER TRANSMIT TANDEM CONNECTION ODI-V CONTROL REGISTER 1
(VTMTCODICR1 = 0XND82)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
Reserved
BIT 2
BIT 1
BIT 0
Transmit
TC ODI-V
upon AIS-V
Defect
Transmit
TC ODI-V
upon LOP-V
Defect
Transmit
TC ODI-V
upon
UNEQ-V
Detect
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT [7:3] - Reserved:
BIT 2 - Transmit TC ODI-V upon AIS-V:
This READ/WRITE bit-field permits the user to configure the VT-Mapper block to automatically transmit the Tandem
Connection ODI Code on the VC2 N2 byte towards the remote VT PTE whenever (and for the duration that) the
corresponding VT-De-Mapper block declares the AIS-V defect condition.
0 - Configures the VT-Mapper block to NOT automatically transmit the Tandem Connection ODI Code (via the N2
byte) whenever (and for the duration that) the corresponding VT-De-Mapper block declares the AIS-V defect condition.
1 - Configures the VT-Mapper block to automatically transmit the Tandem Connection ODI Code (via the N2 byte)
whenever (and for the duration that) the corresponding VT-De-Mapper block declares the AIS-V defect condition.
BIT 1 - Transmit TC ODI-V upon LOP-V:
This READ/WRITE bit-field permits the user to configure the VT-Mapper block to automatically transmit the Tandem
Connection ODI Code on the VC2 N2 byte towards the remote VT PTE whenever (and for the duration that) the
corresponding VT-De-Mapper block declares the LOP-V defect condition.
0 - Configures the VT-Mapper block to NOT automatically transmit the Tandem Connection ODI Code (via the N2
byte) whenever (and for the duration that) the corresponding VT-De-Mapper block declares the LOP-V defect condition.
1 - Configures the VT-Mapper block to automatically transmit the Tandem Connection ODI Code (via the N2 byte)
whenever (and for the duration that) the corresponding VT-De-Mapper block declares the LOP-V defect condition.
BIT 0 - Transmit TC ODI-V upon UNEQ-V:
This READ/WRITE bit-field permits the user to configure the VT-Mapper block to automatically transmit the Tandem
Connection ODI Code on the VC2 N2 byte towards the remote VT PTE whenever (and for the duration that) the
corresponding VT-De-Mapper block declares the UNEQ-V Indication Signal condition.
0 - Configures the VT-Mapper block to NOT automatically transmit the Tandem Connection ODI Code (via the N2
byte) whenever (and for the duration that) the corresponding VT-De-Mapper block declares the UNEQ-V Indication
Signal condition.
1 - Configures the VT-Mapper block to automatically transmit the Tandem Connection ODI Code (via the N2 byte)
whenever (and for the duration that) the corresponding VT-De-Mapper block declares the UNEQ-V Indication Signal
condition.
303
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
TABLE 272: CHANNEL CONTROL - VT-MAPPER TRANSMIT TANDEM CONNECTION ODI-V CONTROL REGISTER 0
(VTMTCODICR0 = 0XND83)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
Transmit
TC ODI-V
upon PLM-V
Defect
Transmit
TC ODI-V
upon TIM-V
Defect
Transmit
TC ODI-V
upon VT
Path Trace
Message
Unstable
Defect
Transmit
TC ODI-V
upon
TC LOMF-V
Defect
Transmit
TC ODI-V
upon
TC UNEQ-V
Detect
Transmit
TC ODI-V
upon IAIS
Defect
Transmit
TC ODI-V
upon
TC API-V
Message
Mismatch
Defect
Transmit
TC ODI-V
upon
TC API-V
Message
Unstable
Defect
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT 7 - Transmit TC ODI-V upon PLM-V:
This READ/WRITE bit-field permits the user to configure the VT-Mapper block to automatically transmit the Tandem
Connection ODI Code on the VC2 N2 byte towards the remote VT PTE whenever (and for the duration that) the
corresponding VT-De-Mapper block declares the PLM-V defect condition.
0 - Configures the VT-Mapper block to NOT automatically transmit the Tandem Connection ODI Code (via the N2
byte) whenever (and for the duration that) the corresponding VT-De-Mapper block declares the PLM-V defect condition.
1 - Configures the VT-Mapper block to automatically transmit the Tandem Connection ODI Code (via the N2 byte)
whenever (and for the duration that) the corresponding VT-De-Mapper block declares the PLM-V defect condition.
BIT 6 - Transmit TC ODI-V upon TIM-V:
This READ/WRITE bit-field permits the user to configure the VT-Mapper block to automatically transmit the Tandem
Connection ODI Code on the VC2 N2 byte towards the remote VT PTE whenever (and for the duration that) the
corresponding VT-De-Mapper block declares the TIM-V defect condition.
0 - Configures the VT-Mapper block to NOT automatically transmit the Tandem Connection ODI Code (via the N2
byte) whenever (and for the duration that) the corresponding VT-De-Mapper block declares the TIM-V defect condition.
1 - Configures the VT-Mapper block to automatically transmit the Tandem Connection ODI Code (via the N2 byte)
whenever (and for the duration that) the corresponding VT-De-Mapper block declares the TIM-V defect condition.
BIT 5 - Transmit TC ODI-V upon VT Path Trace Message Unstable Defect:
This READ/WRITE bit-field permits the user to configure the VT-Mapper block to automatically transmit the Tandem
Connection ODI Code on the VC2 N2 byte towards the remote VT PTE whenever (and for the duration that) the
corresponding VT-De-Mapper block declares the VT Path Trace Message Unstable defect condition.
0 - Configures the VT-Mapper block to NOT automatically transmit the Tandem Connection ODI Code (via the N2
byte) whenever (and for the duration that) the corresponding VT-De-Mapper block declares the VT Path Trace Message
Unstable defect condition.
1 - Configures the VT-Mapper block to automatically transmit the Tandem Connection ODI Code (via the N2 byte)
whenever (and for the duration that) the corresponding VT-De-Mapper block declares the VT Path Trace Message
Unstable defect condition.
BIT 4 - Transmit TC ODI-V upon TC LOMF-V:
This READ/WRITE bit-field permits the user to configure the VT-Mapper block to automatically transmit the Tandem
Connection ODI Code on the VC2 N2 byte towards the remote VT PTE whenever (and for the duration that) the
corresponding VT-De-Mapper block declares the TC LOMF-V defect condition.
0 - Configures the VT-Mapper block to NOT automatically transmit the Tandem Connection ODI Code (via the N2
byte) whenever (and for the duration that) the corresponding VT-De-Mapper block declares the TC LOMF-V defect
condition.
1 - Configures the VT-Mapper block to automatically transmit the Tandem Connection ODI Code (via the N2 byte)
whenever (and for the duration that) the corresponding VT-De-Mapper block declares the TC LOMF-V defect condition.
304
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
BIT 3 - Transmit TC ODI-V upon TC UNEQ-V:
This READ/WRITE bit-field permits the user to configure the VT-Mapper block to automatically transmit the Tandem
Connection ODI Code on the VC2 N2 byte towards the remote VT PTE whenever (and for the duration that) the
corresponding VT-De-Mapper block declares the TC UNEQ-V defect condition.
0 - Configures the VT-Mapper block to NOT automatically transmit the Tandem Connection ODI Code (via the N2
byte) whenever (and for the duration that) the corresponding VT-De-Mapper block declares the TC UNEQ-V defect
condition.
1 - Configures the VT-Mapper block to automatically transmit the Tandem Connection ODI Code (via the N2 byte)
whenever (and for the duration that) the corresponding VT-De-Mapper block declares the TC UNEQ-V defect condition.
BIT 2 - Transmit TC ODI-V upon Incoming AIS-V:
This READ/WRITE bit-field permits the user to configure the VT-Mapper block to automatically transmit the Tandem
Connection ODI Code on the VC2 N2 byte towards the remote VT PTE whenever (and for the duration that) the
corresponding VT-De-Mapper block detects the Incoming AIS-V defect condition.
0 - Configures the VT-Mapper block to NOT automatically transmit the Tandem Connection ODI Code (via the N2
byte) whenever (and for the duration that) the corresponding VT-De-Mapper block detects the Incoming AIS defect
condition.
1 - Configures the VT-Mapper block to automatically transmit the Tandem Connection ODI Code (via the N2 byte)
whenever (and for the duration that) the corresponding VT-De-Mapper block detects the Incoming AIS defect condition.
BIT 1 - Transmit TC ODI-V upon TC API-V Message Mismatch:
This READ/WRITE bit-field permits the user to configure the VT-Mapper block to automatically transmit the Tandem
Connection ODI Code on the VC2 N2 byte towards the remote VT PTE whenever (and for the duration that) the
corresponding VT-De-Mapper block declares the TC API-V Message Mismatch defect condition.
0 - Configures the VT-Mapper block to NOT automatically transmit the Tandem Connection ODI Code (via the N2
byte) whenever (and for the duration that) the corresponding VT-De-Mapper block declares the TC API-V Message
Mismatch defect condition.
1 - Configures the VT-Mapper block to automatically transmit the Tandem Connection ODI Code (via the N2 byte)
whenever (and for the duration that) the corresponding VT-De-Mapper block declares the TC API-V Message Mismatch
defect condition.
BIT 0 - Transmit TC ODI-V upon TC API-V Message Unstable Defect:
This READ/WRITE bit-field permits the user to configure the VT-Mapper block to automatically transmit the Tandem
Connection ODI Code on the VC2 N2 byte towards the remote VT PTE whenever (and for the duration that) the
corresponding VT-De-Mapper block declares the TC API-V Message Unstable defect condition.
0 - Configures the VT-Mapper block to NOT automatically transmit the Tandem Connection ODI Code (via the N2
byte) whenever (and for the duration that) the corresponding VT-De-Mapper block declares the TC API-V Message
Unstable defect condition.
1 - Configures the VT-Mapper block to automatically transmit the Tandem Connection ODI Code (via the N2 byte)
whenever (and for the duration that) the corresponding VT-De-Mapper block declares the TC API-V Message Unstable
defect condition.
305
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
TABLE 273: CHANNEL CONTROL - VT-MAPPER TRANSMIT RDI-V CONTROL REGISTER 3 (VTMRDICR3 = 0XND84)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
Reserved
BIT 2
BIT 1
PLM-V RDI Code[2:0]
BIT 0
Transmit
RDI-V upon
PLM-V
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
1
0
0
BIT [7:4] - Reserved:
BIT [3:1] - PLM-V RDI Code[2:0]:
These three READ/WRITE bit-field permits the user to specify the value that the VT-Mapper block will transmit, within
the RDI-V bit-fields of the K4 byte (within each outbound VT-frame) whenever (and for the duration that) the
corresponding VT-De-Mapper block detects and declare the PLM-V defect condition.
NOTE: In order to enable this feature, the user must set Bit 0 (Transmit RDI-V upon PLM-V) within this register to "1".
BIT 0 - Transmit RDI-V upon PLM-V:
This READ/WRITE bit-field permits the user to configure the VT-Mapper block to automatically transmit the RDI Code
(as configured in Bits 3 through 1 - within this register) towards the remote VT PTE whenever (and for the duration that)
the corresponding VT-De-Mapper block declares the PLM-V defect condition.
0 - Configures the VT-Mapper block to NOT automatically transmit the RDI Code (via the K4 byte) whenever (and for
the duration that) the corresponding VT-De-Mapper block declares the PLM-V defect condition.
1 - Configures the VT-Mapper block to automatically transmit the RDI Code (via the K4 byte) whenever (and for the
duration that) the corresponding VT-De-Mapper block declares the PLM-V defect condition.
306
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 274: CHANNEL CONTROL - VT-MAPPER TRANSMIT RDI-V CONTROL REGISTER 2 (VTMRDICR2 = 0XND85)
BIT 7
BIT 6
BIT 5
TIM-V RDI Code[2:0]
BIT 4
BIT 3
Transmit
RDI-V upon
TIM-V
BIT 2
BIT 1
UNEQ-V RDI Code[2:0]
BIT 0
Transmit
RDI-V upon
UNEQ-V
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
1
1
0
0
1
1
0
0
BIT [7:5] - TIM-V RDI Code[2:0]:
These three READ/WRITE bit-field permits the user to specify the value that the VT-Mapper block will transmit, within
the RDI-V bit-fields of the K4 byte (within each outbound VT-frame) whenever (and for the duration that) the
corresponding VT-De-Mapper block detects and declare the TIM-V defect condition.
NOTE: In order to enable this feature, the user must set Bit 4 (Transmit RDI-V upon TIM-V) within this register to "1".
BIT 4 - Transmit RDI-V upon TIM-V:
This READ/WRITE bit-field permits the user to configure the VT-Mapper block to automatically transmit the RDI Code
(as configured in Bits 7 through 5 - within this register) towards the remote VT PTE whenever (and for the duration that)
the corresponding VT-De-Mapper block declares the TIM-V defect condition.
0 - Configures the VT-Mapper block to NOT automatically transmit the RDI Code (via the K4 byte) whenever (and for
the duration that) the corresponding VT-De-Mapper block declares the TIM-V defect condition.
1 - Configures the VT-Mapper block to automatically transmit the RDI Code (via the K4 byte) whenever (and for the
duration that) the corresponding VT-De-Mapper block declares the TIM-V defect condition.
BIT [3:1] - UNEQ-V RDI Code[2:0]:
These three READ/WRITE bit-field permits the user to specify the value that the VT-Mapper block will transmit, within
the RDI-V bit-fields of the K4 byte (within each outbound VT-frame) whenever (and for the duration that) the
corresponding VT-De-Mapper block detects and declare the UNEQ-V defect condition.
NOTE: In order to enable this feature, the user must set Bit 0 (Transmit RDI-V upon UNEQ-V) within this register to "1".
BIT 0 - Transmit RDI-V upon UNEQ-V:
This READ/WRITE bit-field permits the user to configure the VT-Mapper block to automatically transmit the RDI Code
(as configured in Bits 3 through 1 - within this register) towards the remote VT PTE whenever (and for the duration that)
the corresponding VT-De-Mapper block declares the UNEQ-V defect condition.
0 - Configures the VT-Mapper block to NOT automatically transmit the RDI Code (via the K4 byte) whenever (and for
the duration that) the corresponding VT-De-Mapper block declares the UNEQ-V defect condition.
1 - Configures the VT-Mapper block to automatically transmit the RDI Code (via the K4 byte) whenever (and for the
duration that) the corresponding VT-De-Mapper block declares the UNEQ-V defect condition
307
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
TABLE 275: CHANNEL CONTROL - VT-MAPPER TRANSMIT RDI-V CONTROL REGISTER 1 (VTMRDICR1 = 0XND86)
BIT 7
BIT 6
BIT 5
LOP-V RDI Code[2:0]
BIT 4
BIT 3
Transmit
RDI-V upon
LOP-V
BIT 2
BIT 1
AIS-V RDI Code[2:0]
BIT 0
Transmit
RDI-V upon
AIS-V
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
1
0
1
0
1
0
1
0
BIT [7:5] - LOP-V RDI Code[2:0]:
These three READ/WRITE bit-field permits the user to specify the value that the VT-Mapper block will transmit, within
the RDI-V bit-fields of the K4 byte (within each outbound VT-frame) whenever (and for the duration that) the
corresponding VT-De-Mapper block detects and declare the LOP-V defect condition.
NOTE: In order to enable this feature, the user must set Bit 4 (Transmit RDI-V upon LOP-V) within this register to "1".
BIT 4 - Transmit RDI-V upon LOP-V:
This READ/WRITE bit-field permits the user to configure the VT-Mapper block to automatically transmit the RDI Code
(as configured in Bits 7 through 5 - within this register) towards the remote VT PTE whenever (and for the duration that)
the corresponding VT-De-Mapper block declares the LOP-V defect condition.
0 - Configures the VT-Mapper block to NOT automatically transmit the RDI Code (via the K4 byte) whenever (and for
the duration that) the corresponding VT-De-Mapper block declares the LOP-V defect condition.
1 - Configures the VT-Mapper block to automatically transmit the RDI Code (via the K4 byte) whenever (and for the
duration that) the corresponding VT-De-Mapper block declares the LOP-V defect condition.
BIT [3:1] - AIS-V RDI Code[2:0]:
These three READ/WRITE bit-field permits the user to specify the value that the VT-Mapper block will transmit, within
the RDI-V bit-fields of the K4 byte (within each outbound VT-frame) whenever (and for the duration that) the
corresponding VT-De-Mapper block detects and declare the AIS-V defect condition.
NOTE: In order to enable this feature, the user must set Bit 0 (Transmit RDI-V upon AIS-V) within this register to "1".
BIT 0 - Transmit RDI-V upon AIS-V:
This READ/WRITE bit-field permits the user to configure the VT-Mapper block to automatically transmit the RDI Code
(as configured in Bits 3 through 1 - within this register) towards the remote VT PTE whenever (and for the duration that)
the corresponding VT-De-Mapper block declares the AIS-V defect condition.
0 - Configures the VT-Mapper block to NOT automatically transmit the RDI Code (via the K4 byte) whenever (and for
the duration that) the corresponding VT-De-Mapper block declares the AIS-V defect condition.
1 - Configures the VT-Mapper block to automatically transmit the RDI Code (via the K4 byte) whenever (and for the
duration that) the corresponding VT-De-Mapper block declares the AIS-V defect condition
308
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 276: CHANNEL CONTROL - VT-MAPPER TRANSMIT RDI-V CONTROL REGISTER 0 (VTMRDICR0 = 0XND87)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
RFI-V upon
E1 RAI
Enable
Reserved
Reserved
R/W
R/W
R/W
R/W
R/W
1
0
1
0
1
BIT 2
BIT 1
BIT 0
RDI-V Type
RDI-V Insert
Type
R/W
R/W
R/W
0
1
0
Transmit RDI-V Value[2:0]
BIT 7 - RFI-V upon E1 RAI Enable:
This READ/WRITE bit-field permits the user to configure the VT-Mapper block to automatically transmit the RFI-V
indicator (within the outbound VT-data-stream) whenever (and for the duration) that the corresponding Ingress Direction
Receive E1 Framer block declares the RAI defect condition.
0 - Does not configure the VT-Mapper block to automatically transmit the RFI-V indicator whenever (and for the
duration) that the corresponding Ingress Direction Receive E1 Framer block declares the RAI defect condition.
1 - Configures the VT-Mapper block to automatically transmit the RFI-V indicator whenever (and for the duration) that
the corresponding Ingress Direction Receive E1 Framer block declares the RAI defect condition.
BIT 6 - Reserved
BIT 5 - Reserved:
BIT [4:2] - Transmit RDI-V Value[2:0]:
These three READ/WRITE bit-fields permits the user to specify the value that the VT-Mapper block will transmit, within
the RDI-V bit-fields of the K4 byte (within each outbound VT-frame) regardless of any defects that the corresponding
VT-De-Mapper block is (or is NOT) currently declaring.
NOTE: The user MUST set bit 0 (RDI-V Insert Type) within this register to "1" in order to configure the VT-Mapper block
to use these bit-fields as the "source" of the RDI-V value.
BIT 1 - RDI-V Type:
This READ/WRITE bit-field permits the user to configure the VT-Mapper block to either support the "SRDI-V" (SingleBit - RDI-V) or "ERDI-V" (Extended - RDI-V) form of signaling. If the user opts to use only "Single-Bit" RDI-V, then the
RDI-V indicator will only be transported via Bit 0 (RDI-V) within the V5 byte in a VT-data-stream. Conversely, if the user
opts to use the "Extended" RDI-V, then the RDI-V indicator will be transported via both Bit 0 (RDI-V) within the V5 byte,
and Bits 3, 2 and 1 within the Z7/K4 byte.
0 - Configures the VT Mapper block to use the SRDI-V form of signaling.
1 - Configures the VT-Mapper block to use the ERDI-V form of signaling.
NOTE: This configuration setting only applies to the VT-Mapper block. If the user wishes to configure the VT-DeMappe block to support either the "SRDI-V" or the "ERDI-V" form of signaling, then he/she must set Bit 0 (RDIV Type) within the "Channel Control - VT-De-Mapper Block - Egress Direction - E1 Drop Control Register - Byte
2.
309
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
BIT 0 - RDI-V Insert Type:
This READ/WRITE bit-field permits the user to select the source of the RDI-V code word that the VT-Mapper block will
transmit within the outbound VT-data-stream, as depicted below. In this case, the user has two options.
• To configure the VT-Mapper block to transmit the appropriate RDI-V code (based upon defects that the
corresponding VT-De-Mapper block declares). In this case, the VT-Mapper block will transmit the RDI-V codes, as
configured in the "Channel Control - VT Mapper Block - Ingress Direction - Transmit RDI-V Control Register - Bytes 3
- 1" registers.
• To configure the VT-Mapper block to use the value written into the "Transmit RDI-V Value[2:0]" bit-fields within this
register.
0 - Configures the VT-Mapper block to transmit the appropriate RDI-V code (based upon defects that the
corresponding VT-De-Mapper block declares).
1 - Configures the VT-Mapper block to use the value written into the "Transmit RDI-V Value[2:0]" bit-fields within this
register.
TABLE 277: RECEIVE J2 TRACE IDENTIFIER MESSAGE MEMORY BUFFER
(VTDJ2MEM00 = 0X1E00 - VTDJ2MEM3F = 0X1E3F)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
J2 Trace Identifier Message Byte[0:63]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
When using 16-byte or 64-byte messaging for J2, there is only one memory buffer allocation. Therefore, register 0x0C02
can be used to select which of the 21 channels will monitor the J2 byte at one time. In addition, this memory allocation is
used to set the "Expected" value for J2 miss match indication by programming bit 4="1" in register 0xND71. When bit4="0",
in register 0xND71, this memory allocation is receiving the "Actual" J2 byte.
Receive J2 Trace Identifier Message - 16 Byte Message Buffer:
Address Location: 0x1E00 - 0x1E0F
Receive J2 Trace Identifier Message - 64 Byte Message Buffer:
Address Location: 0x1E00 - 0x1E3F
NOTE: J2 Trace Identifier 64-Byte Messaging is not permitted when N2 Access Point Indentifier 16-Byte Messaging is
enabled.
TABLE 278: RECEIVE N2 ACCESS POINT IDENTIFIER MESSAGE MEMORY BUFFER
(VTDN2MEM20 = 0XNE20 - VTDN2MEM2F = 0XNE2F)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
N2 Access Point Identifier Message Byte[0:15]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
Receive N2 Access Point Identifier Message - 16 Byte Message Buffer:
Address Location: 0xNE20 - 0xNE2F
NOTE: J2 Trace Identifier 64-Byte Messaging is not permitted when N2 Access Point Indentifier 16-Byte Messaging is
enabled.
310
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 279: TRANSMIT J2 TRACE IDENTIFIER MESSAGE MEMORY BUFFER
(VTMJ2MEM00 = 0X1F00 - VTMJ2MEM3F = 0X1F3F)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
J2 Trace Identifier Message Byte[0:63]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
When using 16-byte or 64-byte messaging for J2, there is only one memory buffer allocation. Therefore, register 0x0C02
can be used to select which of the 21 channels will be used to transmit the J2 byte at one time.
Transmit J2 Trace Identifier Message - 16 Byte Message Buffer:
Address Location: 0x1F00 - 0x1F0F
Transmit J2 Trace Identifier Message - 64 Byte Message Buffer:
Address Location: 0x1F00 - 0x1F3F
NOTE: J2 Trace Identifier 64-Byte Messaging is not permitted when N2 Access Point Indentifier 16-Byte Messaging is
enabled.
TABLE 280: TRANSMIT N2 ACESS POINT IDENTIFIER MESSAGE MEMORY BUFFER
(VTMN2MEM20 = 0XNF20 - VTMN2MEM2F = 0XNF2F)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
N2 Access Point Identifier Message Byte[0:15]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
Transmit N2 Access Point Identifier Message - 16 Byte Message Buffer:
Address Location: 0xNF20 - 0xNF2F
NOTE: J2 Trace Identifier 64-Byte Messaging is not permitted when N2 Access Point Indentifier 16-Byte Messaging is
enabled.
311
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
7.0 MICROPROCESSOR INTERFACE TIMING
7.1
MICROPROCESSOR INTERFACE TIMING - INTEL ASYNCHRONOUS MODE
In Intel Asynchronous mode the active signals are ADDR[17:0], DATA[7:0], CS, ALE, WR, RD and RDY. A
READ cycle starts with assertion of CS, address is assumed to be stable at this time since CS is usually derived
from the decoding the address bus. Inside XRT86SH221 address is latched on the falling edge of the ALE input.
Address may change on the ADDR inputs after the falling edge of the ALE.
Multiplexed Address & Data bus is supported in this mode using ALE input. It is possible to pull-up the ALE input
if multiplexed address and data mode is not used. In this case the address should be stable through entire read
or write instruction cycle.
Following falling edge of ALE, RD is asserted for the READ operation. RD must remain asserted until RDY is
asserted by the XRT86SH221 device, which indicates DATA from the addressed location is available on the
data bus. RD and CS can be de-asserted when the data has been read by the processor.
Operation with wait-states is also possible, provided the wait is longer than the minimum cycle time. Use of RDY
is recommended for timing efficiency since the read cycle time can vary depending on the internal address
location being accessed.
WRITE operation is identical to read operation except that following falling edge of ALE WR is asserted. Data
to be written at the addressed location should be valid on the data bus at the time WR is asserted. WR should
remain asserted until RDY is asserted by the XRT86SH221 device. Following RDY assertion WR and CS may
be de-asserted.
FIGURE 55. INTEL-ASYNCHRONOUS MODE TIMING - WRITE OPERATION
t0
t1
ALE/AS
A[17:0]
Address of Target Register
CS
t5
D[7:0]
t4
Data to be Written
RD/DS
t2
WR/R/W
RDY/DTACK
t3
t10
Note: The values for t0 through t10, within this figure can be found in Table 281.
312
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
Table 281
REV. 1.0.1
Intel Asynchronous Mode Timing - Write Operation
Test Conditions: TA = 25°C, VCC = 3.3V±5% and 1.8V ±5%, unless otherwise specified
TimingSymbol
Description
Min.
Typ.
Max.
Units
t0
Address setup time to ALE "Low"
5
-
-
ns
t1
Address hold time from ALE "Low"
5
-
-
ns
t2
WR strobe pulse width
150
-
-
ns
t3
Data setup time to WR "Low"
25
-
-
ns
t4
Data hold time from WR "Low"
200
-
-
ns
t5
ALE "Low" set-up time to WR "Low"
50
-
-
ns
t10
WR "Low" to RDY "Low" delay time
-
-
125
ns
FIGURE 56. INTEL-ASYNCHRONOUS MODE TIMING - READ OPERATION
t1
t0
ALE/AS
A[17:0]
Address of Target Register
CS
D[7:0]
Valid
Not Valid
RD/DS
t2
t5
t6
WR/R/W
RDY/DTACK
t12
Note: The values for t0 through t10, in this figure can be found in Table 282.
Table 282
Intel Asynchronous Mode Timing - Read Operation
Test Conditions: TA = 25°C, VCC = 3.3V±5% and 1.8V ±5%, unless otherwise specified
TimingSymbol
Description
Min.
Typ.
Max.
Units
t0
Address setup time to ALE "Low"
5
-
-
ns
t1
Address hold time from ALE "Low"
5
-
-
ns
t2
RD strobe pulse width
200
-
-
ns
t5
ALE "Low" set-up time to RD "Low"
50
-
-
ns
t6
Data Invalid delay from RD “High”
-
-
9
ns
313
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
Table 282
Intel Asynchronous Mode Timing - Read Operation
RD “Low” to RDY ”Low” delay time
t12
7.2
-
-
125
ns
MICROPROCESSOR INTERFACE TIMING - MOTOROLA ASYNCHRONOUS (68K) MODE
In Motorola Asynchronous mode the active signals are ADDR[17:0], DATA[7:0], CS, RW, DS and DTACK. A
READ cycle starts with RW being 'HIGH' and assertion of CS, address is assumed to be stable at this time since
CS is usually derived from the decoding the address bus.
In this mode the address should be stable through entire read or write instruction cycle.
Following falling edge of CS, DS is asserted for the READ operation. DS must remain asserted until DTACK is
asserted by the XRT86SH221 device, which indicates DATA from the addressed location is available on the
data bus. DS and CS can be de-asserted when the data has been read by the processor.
Operation with wait-states is also possible, provided the wait is longer than the minimum cycle time. Use of
DTACK is recommended for timing efficiency since the read cycle time can vary depending on the internal
address location being accessed.
WRITE operation is identical to read operation except that the cycle starts with RW being 'LOW', followed by CS
assertion further followed by assertion of DS. Data to be written at the addressed location should be valid on
the data bus at the time DS is asserted. DS should remain asserted until DTACK is asserted by the
XRT86SH221 device. Following assertion of DTACK DS and CS may be de-asserted.
FIGURE 57. MOTOROLA-ASYNCHRONOUS MODE TIMING - WRITE OPERATION
Address of Target Register
A[17:0]
CS
t16
D[7:0]
Data to be Written
RD/DS
t15
t17
WR/R/W
RDY/DTACK
t21
t22
Note: The values for t15 through t22 can be found in Table 283.
Table 283
Motorola (68K) Asynchronous Mode Timing Information - Write Operation
Test Conditions: TA = 25°C, VCC = 3.3V±5% and 1.8V ±5%, unless otherwise specified
Timing
Description
Min.
Typ.
Max
Units
t15
Data setup time to DS "Low"
25
-
-
ns
t16
Data hold time to DS "Low"
150
-
-
ns
t17
DS "High" to DTACK "High"
-
-
9
ns
t21
CS "Low" to DS set-up time
50
-
-
ns
314
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
Table 283
REV. 1.0.1
Motorola (68K) Asynchronous Mode Timing Information - Write Operation
Test Conditions: TA = 25°C, VCC = 3.3V±5% and 1.8V ±5%, unless otherwise specified
Timing
Description
DS "Low" to DTACK "Low" delay time
t22
7.2.1
Min.
Typ.
Max
Units
130
-
-
ns
Motorola-Asynchronous Mode Timing - Read Operation
FIGURE 58. MOTOROLA-ASYNCHRONOUS MODE TIMING - READ OPERATION
Address of Target Register
A[17:0]
t20
CS
D[7:0]
RD/DS
Not Valid
Valid Data
t21
WR/R/W
t22
t19
RDY/DTACK
Note: The values for t13 through t24 can be found in Table 283.
Table 284
Motorola (68K) Asynchronous Mode Timing - Read Operation
Test Conditions: TA = 25°C, VCC = 3.3V±5% and 1.8V ±5%, unless otherwise specified
Timing
Description
Min.
Typ.
Max
Units
t19
DS "High" to DTACK "High"
-
-
8
ns
t20
DTACK "High" to Data invalid
-
-
8
ns
t21
CS "Low" to DS set-up time
50
-
-
ns
t22
DS "Low" to DTACK "Low" delay time
120
-
-
ns
315
XRT86SH221
REV. 1.0.1
7.3
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
PowerPC 403 Synchronous Mode:
In PowerPC mode the active signals are ADDR[17:0], DATA[7:0], CS, RW, WE, DBEN, RDY and PCLK. In this
mode all input signals are sampled by the PCLK. For all inputs minimum setup time is 4ns and minimum hold
time is 3ns. Maximum PCLK frequency is 66 MHz.
A READ cycle starts with RW being 'HIGH' and assertion of CS, address is assumed to be stable at this time
since CS is usually derived from the decoding the address bus.
Following falling edge of CS, DBEN is asserted for the READ operation. DBEN must remain asserted until RDY
is asserted by the XRT86SH221 device, which indicates DATA from the addressed location is available on the
data bus. DBEN and CS can be de-asserted when the data has been read by the processor. WE should be high
during the entire read cycle.
Operation with wait-states is also possible, provided the wait is longer than the minimum cycle time. Use of RDY
is recommended for timing efficiency since the read cycle time can vary depending on the internal address
location being accessed.
WRITE operation is identical to read operation except that the cycle starts with RW being 'LOW', followed by CS
assertion further followed by assertion of WE. Data to be written at the addressed location should be valid on
the data bus at the time WE is asserted. WE should remain asserted until RDY is asserted by the XRT86SH221
device. Following RDY assertion WE and CS may be de-asserted. DBEN should be high during the entire write
cycle.
FIGURE 59. POWERPC 403 MODE TIMING - WRITE OPERATION
1
2
3
4
5
6
7
8
9
10
PClk
A[17:0]
CS
R/W
After 1 PClk Cycle of CS going "low"
WE
D[7:0]
t23
RDY
t25
t24
8 PClk Cycles
NOTE: PClk = 33Mhz
Note: The value for t25 through t38 can be found in Table 285.
Table 285
Power PC403 Mode Timing - Write Operation
Test Conditions: TA = 25°C, VCC = 3.3V±5% and 1.8V ±5%, unless otherwise specified
Timing
Description
Min.
Typ.
Max.
Units
t23
R/W "Low" to rising edge of PCLK set-up time (Write
Operation)
5
-
-
ns
t24
CS "Low" to rising edge of PCLK set-up time
5
-
-
ns
t25
Rising edge of PCLK to RDY "Low" delay
4
-
-
ns
316
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
FIGURE 60. POWERPC 403 MODE TIMING - READ OPERATION
1
2
3
4
5
6
7
8
9
10
PClk
A[17:0]
R/W
WE
CS
t27
7 PClk Cycles
NOT Valid
D[7:0]
Valid
RDY
t24
8 PClk Cycles
t25
Note: The value for t25 through t38 can be found in Table 286.
Table 286
Power PC403 Mode Timing - Read Operation
Test Conditions: TA = 25°C, VCC = 3.3V±5% and 1.8V ±5%, unless otherwise specified
Timing
Description
Min.
Typ.
Max.
Units
t24
CS "Low" to rising edge of PCLK set-up time
5
-
-
ns
t25
Rising edge of PCLK to RDY “Low” delay
4
-
-
ns
t27
R/W “High” to rising edge of PCLK set-up time
5
-
-
ns
317
XRT86SH221
REV. 1.0.1
7.4
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
MICROPROCESSOR INTERFACE TIMING - MCP860 SYNCHRONOUS MODE
In MPC86x mode the active signals are ADDR[17:0], DATA[7:0], CS, RW, WE, DBEN, TA and PCLK. In this
mode all input signals are sampled by the PCLK. For all inputs minimum setup time is 4ns and minimum hold
time is 3ns. Maximum PCLK frequency is 66 MHz.
A READ cycle starts with RW being 'HIGH' and assertion of CS, address is assumed to be stable at this time
since CS is usually derived from the decoding the address bus.
Following falling edge of CS, DBEN is asserted for the READ operation. DBEN must remain asserted until TA
is asserted by the XRT86SH221 device, which indicates DATA from the addressed location is available on the
data bus. DBEN and CS can be de-asserted when the data has been read by the processor. WE should be high
during the entire read cycle.
Operation with wait-states is also possible, provided the wait is longer than the minimum cycle time. Use of TA
is recommended for timing efficiency since the read cycle time can vary depending on the internal address
location being accessed.
WRITE operation is identical to read operation except that the cycle starts with RW being 'LOW', followed by
CS assertion further followed by assertion of WE. Data to be written at the addressed location should be valid
on the data bus at the time WE is asserted. WE should remain asserted until TA is asserted by the
XRT86SH221 device. Following assertion of TA WE and CS may be de-asserted. DBEN should be high during
the entire write cycle.
FIGURE 61. MPC86X MODE TIMING - WRITE OPERATION
1
2
3
4
5
6
7
8
9
10
PClk
A[17:0]
CS
R/W
After 1 PClk Cycle
WE
D[7:0]
t23
RDY
t25
t24
8 PClk Cycles
NOTE: PClk = 33Mhz
Table 287
MPC86X Mode Timing - Write Operation
Test Conditions: TA = 25°C, VCC = 3.3V±5% and 1.8V ±5%, unless otherwise specified
Timing
Description
Min.
Typ.
Max.
Units
t23
R/W "Low" to rising edge of PCLK set-up time (Write
Operation)
5
-
-
ns
t24
CS "Low" to rising edge of PCLK set-up time
4
-
-
ns
t25
Rising edge of PCLK to RDY “High”delay
4
-
-
ns
318
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
FIGURE 62. MPC86X MODE TIMING - READ OPERATION
1
2
3
4
5
6
7
8
9
10
PClk
A[17:0]
R/W
WE
CS
t27
7 PClk Cycles
NOT Valid
D[7:0]
Valid
RDY
t24
8 PClk Cycles
t25
Table 288
MPC86X Timing Information - Read Operation
Test Conditions: TA = 25°C, VCC = 3.3V±5% and 1.8V ±5%, unless otherwise specified
Timing
Description
Min.
Typ.
Max.
Units
t24
CS "Low" to rising edge of PCLK set-up time
5
-
-
ns
t25
Rising edge of PCLK to RDY “High” delay
4
-
-
ns
t27
R/W “High” to rising edge of PCLK set-up time
5
-
-
ns
319
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
8.0 INTERFACE TIMING SPECIFICATIONS
8.1
STM-0/STM-1 TELECOM BUS INTERFACE TIMING INFORMATION
This Section presents the timing requirements of the STM-0/STM-1 Telecom Bus Interface, for the following
conditions/modes.
• Whenever the STM-0/STM-1 Telecom Bus Interface has been configured to operate in the STM-0 Mode.
• Whenever the STM-0/STM-1 Telecom Bus Interface has been configured to operate in the STM-1 Slot Master
Mode
• Whenever the STM-0/STM-1 Telecom Bus Interface has been configured to operate in the STM-1 Slot Slave
Mode
This section presents the timing requirements for the STM-0/STM-1 Telecom Bus Interface. In particular this
section indicates the following.
a) Identifies which edge of TxA_CLK in which the TxA_D[7:0], TxA_PL, TxA_C1J1V1_FP, TxA_ALARM
and TxA_DP output pins are updated on.
b) The clock to output delays (from the rising edge of TxA_CLK to the instant that the TxA_D[7:0], TxA_PL,
TxA_C1J1V1_FP, TxA_ALARM and TxA_DP output pins are updated.
c) Identifies which edge of RxD_CLK that the RxD_D[7:0], RxD_PL, RxD_C1J1V1_FP, RxD_ALARM and
RxD_DP input pins are sampled on.
d) The set-up time requirements (from an update in the RxD_D[7:0], RxD_PL, RxD_C1J1V1_FP,
RxD_ALARM and RxD_DP input signals to the rising edge of RxD_CLK).
e) The hold-time requirements (from the rising edge of RxD_CLK to a change in the RxD_D[7:0], RxD_PL,
RxD_C1J1V1_FP, RxD_ALARM and RxD_DP input signals)
8.2
The Transmit STM-0/STM-1 Telecom Bus Interface Timing - STM-0 Applications
Whenever the Transmit STM-0/STM-1 Telecom Bus Interface has been configured to operate in the STM-0
Mode, then all of the signals (which are output via this Bus Interface) are updated upon the falling edge of
TxA_CLK (6.48MHz clock signal).
FIGURE 63. AN ILLUSTRATION OF THE WAVEFORMS OF THE SIGNALS THAT ARE OUTPUT VIA THE TRANSMIT STM-0/
STM-1 TELECOM BUS INTERFACE (FOR STM-0 APPLICATIONS)
t51
TxA_CLK
TxA_PL
TxA_C1J1V1_FP
TxA_D[7:0]
A2
C1
C1
Note: The value for t51 can be found in Table 289.
320
J1
Data
J1
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
Table 289
Timing Information for the Transmit STM-0 Telecom Bus Interface - STM-0 Applications
Symbol
t51
8.3
REV. 1.0.1
Description
Min.
Falling edge of TxA_CLK to updates in TxA_D[7:0], TxA_PL,
TxA_C1J1V1_FP and TxA_DP
Typ.
2.0ns
Max.
3.1ns
The Transmit STM-0/STM-1 Telecom Bus Interface Timing - STM-1 Slot Master Applications
Whenever the Transmit STM-0/STM-1 Telecom Bus Interface has been configured to operate in both the STM1 and the Slot Master Mode, then all of the signals (which are output via this Bus Interface) are updated upon
the falling edge of TxA_CLK (19.44MHz clock signal).
FIGURE 64. AN ILLUSTRATION OF THE WAVEFORMS OF THE SIGNALS THAT ARE OUTPUT VIA THE TRANSMIT STM-0/
STM-1 TELECOM BUS INTERFACE (FOR STM-1 APPLICATIONS)
t52
TxA_CLK
TxA_PL
TxA_C1J1V1_FP
TxA_D[7:0]
A2
C1
C1
J1
Data
J1
If the XRT86SH221 is configured to operate as the Slot Master, then it will pulse the TxSBFP_IN_OUT output
pin "High" coincident to the instant that the chip outputs the very first byte of a given STM-1 frame. The
XRT86SH221 will update the TxSBFP_IN_OUT output pin upon the falling edge of TxA_CLK.
321
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
FIGURE 65. AN ILLUSTRATION OF THE TIMING RELATIONSHIPS BETWEEN THE TXSBFP_IN_OUT OUTPUT PIN, AND
THE TXA_CLK OUTPUT PIN, WITHIN THE TRANSMIT STM-1 TELECOM BUS INTERFACE (SLOT MASTER MODE APPLICATION)
t53
TxA_CLK
Tx_51_19MHz
TxSBFP_IN_OUT
TxA_D[7:0]
Table 290
Symbol
Data
A1
A1
Data
Data
Data
Timing Information for the Transmit STM-0/STM-1 Telecom Bus Interface - STM-1 Slot
Master Applications
Description
t52
Falling edge of TxA_CLK to updates in TxA_D[7:0], TxA_PL,
TxA_C1J1V1_FP and TxA_DP
t53
Falling edge of TxA_CLK to update in the TxSBFP_IN_OUT signal
322
Min.
Typ.
Max.
2.0ns
4.0ns
0.1
0.3
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
8.4
REV. 1.0.1
The Transmit STM-0/STM-1 Telecom Bus Interface Timing - STM-1 Slot Slave Applications
Whenever the Transmit STM-0/STM-1 Telecom Bus Interface has been configured to operate in the STM-1,
then all of the signals (which are output via this Bus Interface) are updated upon the falling edge of TxA_CLK
(19.44MHz clock signal).
FIGURE 66. AN ILLUSTRATION OF THE WAVEFORMS OF THE SIGNALS THAT ARE OUTPUT VIA THE TRANSMIT STM-0/
STM-1 TELECOM BUS INTERFACE (FOR STM-1 APPLICATIONS)
t54
TxA_CLK
TxA_PL
TxA_C1J1V1_FP
TxA_D[7:0]
A2
C1
C1
J1
Data
J1
If the XRT86SH221 is configured to operate as the Slot Slave, then it will sample the TxSBFP_IN_OUT signal
via an internal clock. The timing relationship between the TxSBFP_IN_OUT signal and the other Transmit STM0/STM-1 Telecom Bus Interface signals is presented below in Figure 67.
FIGURE 67. AN ILLUSTRATION OF THE TIMING RELATIONSHIPS BETWEEN THE TXSBFP INPUT PIN AND THE
TXA_CLK OUTPUT PIN WITHIN THE TRANSMIT STM-0/STM-1 TELECOM BUS INTERFACE (STM-1 SLOT SLAVE
APPLICATIONS)
TxA_CLK
t57
Tx_51_19MHz
t58
TxSBFP_IN_OUT
TxA_D[7:0]
Data
A1
A1
Data
323
Data
Data
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
Table 291
Timing Information for the Transmit STM-0/STM-1 Telecom Bus Interface - STM-1 Slot Slave
Applications
Symbol
Description
Min.
t54
Falling edge of TxA_CLK to updates in TxA_D[7:0], TxA_PL,
TxA_C1J1V1_FP and TxA_DP
t57
TxSBFP Set-up time to rising edge of Tx51_19MHz
6ns
t58
Rising edge of Tx51_19MHz to TxSBFP_IN_OUT Hold Time
1ns
Typ.
1.1ns
Max.
2.5ns
Note: In Slave mode, TxSBFP_IN_OUT is input to XRT86SH221. Inputs are applied using input clock Tx_51_19MHz and
are sampled on rising edge of Tx_51_19MHz internally. The t57 parameter is referenced to the rising edge of
Tx_51_19MHz, which provides the minimum setup and hold time required for TxSBFP_IN_OUT. TxA_CLK should be
used to sampe the output signals not the input signals.
8.5
The Receive STM-0/STM-1 Telecom Bus Interface Timing - STM-0 Applications
Whenever the Receive STM-0/STM-1 Telecom Bus Interface has been configured to operate in the STM-0
Mode, then all of the signals (which are accepted via this Bus Interface) are sampled upon the rising edge of
RxD_CLK (6.48MHz clock signal).
FIGURE 68. AN ILLUSTRATION OF THE WAVEFORMS OF THE SIGNALS THAT ARE INPUT VIA THE RECEIVE STM-0/
STM-1 TELECOM BUS INTERFACE
t59
RxD_CLK
RxD_PL
RxD_C1J1V1_FP
RxD_D[7:0]
A2
C1
C1
J1
Data
Data
t60
Note: The value for t59 and t60 can be found in Table 292. The data and control signals are applied on the falling edge of
RxD_CLK. The XRT86SH221 samples the data and control signals on the rising edge of RxD_CLK.
Table 292
Symbol
t59
Timing Information for the Receive STM-0/STM-1 Telecom Bus Interface - STM-0
Applications
Description
RxD_D[7:0], RxD_PL, RxD_C1J1V1_FP, RxD_ALARM and
RxD_DP to rising edge of RxD_CLK set-up time requirements
324
Min.
6 ns
Typ.
Max.
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
Table 292
Timing Information for the Receive STM-0/STM-1 Telecom Bus Interface - STM-0
Applications
Symbol
Description
Min.
rising edge of RxD_CLK to RxD_D[7:0], RxD_PL,
RxD_C1J1V1_FP, RxD_ALARM and RxD_DP hold time
requirements
t60
8.6
REV. 1.0.1
Typ.
Max.
2 ns
The Receive STM-0/STM-1 Telecom Bus Interface Timing - STM-1 Applications
Whenever the Receive STM-0/STM-1 Telecom Bus Interface has been configured to operate in the STM-1
Mode, then all of the signals (which are accepted via this Bus Interface) are sampled upon the rising edge of
RxD_CLK (19.44MHz clock signal).
FIGURE 69. AN ILLUSTRATION OF THE WAVEFORMS OF THE SIGNALS THAT ARE INPUT VIA THE RECEIVE STM-0/
STM-1 TELECOM BUS INTERFACE
t61
RxD_CLK
RxD_PL
RxD_C1J1V1_FP
RxD_D[7:0]
A2
C1
C1
J1
Data
Data
t62
Note: The value for t61 and t62 can be found in Table 293.
Table 293
Symbol
Timing Information for the Receive STM-0/STM-1 Telecom Bus Interface - STM-1
Applications
Description
Min.
t61
RxD_D[7:0], RxD_PL, RxD_C1J1V1_FP, RxD_ALARM and
RxD_DP to rising edge of RxD_CLK set-up time requirements
6 ns
t62
Rising edge of RxD_CLK to RxD_D[7:0], RxD_PL,
RxD_C1J1V1_FP, RxD_ALARM and RxD_DP hold time
requirements
2 ns
325
Typ.
Max.
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
8.7
STM-0 LIU INTERFACE TIMING INFORMATION
In addition to the Telecom Bus, the XRT86SH221 can be configured for High-Speed STM-0/STM-1 LIU
Interface Ports.
8.7.1
Receive STM-0/STM-1 LIU Interface Timing
FIGURE 70. AN ILLUSTRATION OF THE WAVEFORMS OF THE RECEIVE STM-0/STM-1 SIGNALS THAT ARE INPUT TO
THE RECEIVE STM-0/STM-1 LIU INTERFACE BLOCK - SHARED PORT
t63
t64
RxSTM0DATA
RxSTM0CLK
Note: The values for t63 and t64 are presented in Table 294.
Table 294
Symbol
Timing Information for the Receive STM-0/STM-1 LIU Interface when the Receive STM-0/
STM-1 TOH Processor block has been configured to sample the RxSTM0DATA signal upon
the rising edge of the RxSTM0CLK signal
Description
Min.
t63
RxSTM0DATA to rising edge of RxSTM0CLK set-up time
requirements
5ns
t64
Rising edge of RxSTM0CLK to RxSTM0DATA Hold time
requirements
0ns
326
Typ.
Max.
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
8.7.2
REV. 1.0.1
Transmit STM-0/STM-1 LIU Interface Timing
FIGURE 71. AN ILLUSTRATION OF THE WAVEFORMS OF THE STM-0/STM-1 SIGNALS THAT ARE OUTPUT FROM THE
TRANSMIT STM-0/STM-1 LIU INTERFACE - DEDICATED PORT
t65
TxSTM0DATA
TxSTM0CLK
Note: The value for t65 is presented in Table 295 .
Table 295
Symbol
t65
Timing Information for the Transmit STM-0/STM-1 LIU Interface when the Transmit STM-0/
STM-1 TOH Processor block has been configured to update the TxSTM0DATA signal upon
the rising edge of the TxSTM0CLK signal
Description
Rising edge of TxSTM0CLK to TxSTM0DATA output delay
327
Min.
2.0ns
Typ.
Max.
5.0ns
XRT86SH221
REV. 1.0.1
8.8
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
TRANSMIT STM-0/STM-1 TOH and POH DATA INPUT PORT
The Transmit STM-0/STM-1 TOH and POH Data Input Port is used to insert a value for the TOH and POH bytes
into the outbound STM-0/STM-1 data-stream.
Note: The TxOHIns and the TxOH input pins are sampled (by the Transmit STM-0/STM-1 TOH and POH Overhead Input
Port) upon the rising edge of TxOHClk. All of the remaining signals (e.g., TxOHFrame and TxOHEnable) are updated
upon the falling edge of TxOHClk.
FIGURE 72. ILLUSTRATION OF TIMING WAVE-FORM OF THE TRANSMIT STM-0/STM-1 TOH AND POH OVERHEAD
DATA INPUT PORT
t65
t66
t67
TxOHClk
TxOHFrame
TxOHEnable
TxOHIns
TxOH
Note: The values for t65, t66 and t67 can be found in Table 296.
Table 296
Timing Information for the Transmit STM-0/STM-1 TOH and POH Overhead Data Input Port
Symbol
Description
Min.
t65
Falling edge of TxOHClk to rising edge of TxOHFrame,
TxOHEnable and TxPOHInd output delay
-3.0ns
t66
TxOHIns to rising edge of TxOHClk set-up time
6.0ns
t67
TxOH Data to rising edge of TxOHClk set-up time
6.0ns
F1
TxOHClk Frequency
Typ.
Max.
-2.0ns
3.08MH
z
Note: The XRT86SH221 uses faster SYSCLK (49MHz) and enable at STM-0 byte rate (6.48MHz) to generate all the outputs
including TxOHClk, TxOHEnable and TxOHFrame. This can make t65 have negative min and max times.The rising
of TxOHClk should be used to sample TxOHEnable and TxOHFrame which provides enough setup and hold times.
328
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
8.9
REV. 1.0.1
TRANSMIT VC-4 POH DATA INPUT PORT
The Transmit VC-4 POH Data Input Port is used to insert a value for the VC-4 POH bytes into either the
outbound VC-4 data-stream (which is output via the Transmit STM-1 Telecom Bus.
Note: The TxTUPOHIns and the TxTUPOH input pins are sampled (by the Transmit VC-4 POH Data Input Port) upon the
rising edge of TxTUPOHClk. All of the remaining signals (e.g., TxTUPOHFrame and TxTUPOHEnable) are updated
upon the falling edge of TxTUPOHClk.
FIGURE 73. ILLUSTRATION OF TIMING WAVE-FORM OF THE TRANSMIT VC-4 POH DATA INPUT PORT
t68
t69
t70
TxTUPOHClk
TxTUPOHFrame
TxTUPOHEnable
TxTUPOHIns
TxTUPOH
Note: The values for t68, t69 and t70 can be found in Table 297.
Table 297
Symbol
Timing Information for the Transmit VC-4 POH Data Input Port
Description
Min.
t68
Falling edge of TxTUPOHClk to rising edge of TxTUPOHFrame
and TxTUPOHValid output delay
t69
TxTUPOHIns to rising edge of TxTUPOHClk set-up time
6ns
t70
TxTUPOH Data to rising edge of TxTUPOHClk set-up time
6ns
329
-0.5ns
Typ.
Max.
0.5ns
XRT86SH221
REV. 1.0.1
8.10
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
Receive STM-0/STM-1 TOH and POH Data Output Port
The Receive STM-0/STM-1 TOH and POH Data Output port is used to extract out the values of the TOH and
POH bytes within the incoming STM-0/STM-1 data-stream. All of the Receive TOH and POH Data Output port
signals are updated upon the falling edge of RxOHClk.
FIGURE 74. ILLUSTRATION OF THE TIMING WAVE-FORM OF THE RECEIVE STM-0/STM-1 TOH AND POH DATA OUTPUT PORT
t71
t72
RxOHClk
RxOHFrame
RxOHValid
RxOH
Note: The values for t71 and t72 can be found in Table 298.
Table 298
Symbol
Timing Information for the Receive STM-0/STM-1 TOH and POH Data Output Port
Description
Min.
Typ.
Max.
t71
Falling edge of RxOHClk to rising edge of RxOHFrame,
RxOHValid, and RxPOHInd
-0.2ns
0.2ns
t72
Falling edge of RxOHClk to RxOH output delay
-0.2ns
0.2ns
330
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
8.11
REV. 1.0.1
RECEIVE VC-4 POH DATA OUTPUT PORT
The Receive VC-4 POH Overhead Output port is used to extract out the values of the VC-4 POH bytes within
the incoming STM-1 data-stream. All of the Receive VC-4 POH Overhead Output port signals are updated upon
the falling edge of RxTUPOHClk. The timing wave-form and information for the Receive VC-4 POH Data Output
Port is presented below.
FIGURE 75. ILLUSTRATION OF THE TIMING WAVE-FORM OF THE RECEIVE VC-4 POH DATA OUTPUT PORT
t73
t74
RxTUPOHClk
RxTUPOHFrame
RxTUPOHValid
RxTUPOH
Note: The values for t73 and t74 can be found in Table 299.
Table 299
Timing Information for the Receive VC-4 POH Data Output Port
Symbol
Description
Min.
t73
Falling edge of RxTUPOHClk to rising edge of RxTUPOHFrame
and RxTUPOHValid
-0.2ns
0.2ns
t74
Falling edge of RxTUPOHClk to RxTUPOH output delay
-0.2ns
0.2ns
331
Typ.
Max.
XRT86SH221
REV. 1.0.1
8.12
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
INGRESS DIRECTION - ADD/DROP PORT TIMING
8.12.1
Ingress Direction - Add Port Timing
FIGURE 76. ILLUSTRATION OF THE INGRESS-DIRECTION ADD PORT SIGNALS
t83
t81
t79
IG_TE1TxCLK
IG_TE1TxDATA[7:0]
IG_TE1TxOHInd[4:0]
IG_TE1TxSLOT0
t84
IG_TE1TxVALID
t80
t85
t82
t86
Table 300
Timing Information for the Ingress-Direction Add Port Signals
Timing
Symbol
Description
Min
t79
IG_TE1TxDATA[7:0] to rising edge of IG_TE1TxCLK set-up time
4.5
ns
t80
Rising edge of IG_TE1TxCLK to IG_TE1TxDATA[7:0] hold time
3.0
ns
t81
IG_TE1TxOHInd[4:0] to rising edge of IG_TE1TxCLK set up time
4.5
ns
t82
Rising edge of IG_TE1TxCLK to IG_TE1TxOHInd[4:0] hold time
3.0
ns
t83
IG_TE1TxSLOT0 to rising edge of IG_TE1TxCLK set-up time
5.0
ns
t84
Rising edge of IG_TE1TxCLK to IG_TE1TxSLOT0 hold time
3.0
ns
t85
IG_TE1TxVALID to rising edge of IG_TE1TxCLK set-up time
5.0
ns
t86
Rising Edge of IG_TE1TxCLK to IG_TE1TxVALID hold time
3.0
ns
332
Typ
Max
Units
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
8.12.2
REV. 1.0.1
Ingress Direction - Drop Port Timing
FIGURE 77. ILLUSTRATION OF THE INGRESS-DIRECTION DROP PORT SIGNALS
t87
t88
t89
t90
IG_TE1RxCLK
IG_TE1RxDATA[7:0]
IG_TE1RxOHInd[4:0]
IG_TE1RxSLOT0
IG_TE1RxVALID
Table 301
Timing Information for the Ingress-Direction Drop Port Signals
Timing
Symbol
Description
Min
t87
Falling Edge of IG_TE1RxCLK to IG_TE1RxVALID output delay
-0.2
t88
Rising edge of IG_TE1RxCLK to IG_TE1RxDATA[7:0] hold time
6.0
ns
t89
IG_TE1RxOHInd[4:0] to rising edge of IG_TE1rxCLK set up time
4.5
ns
t90
Rising edge of IG_TE1RxCLK to IG_TE1RxOHInd[4:0] hold time
6.0
ns
333
Typ
Max
Units
3.0
ns
XRT86SH221
REV. 1.0.1
8.13
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
EGRESS DIRECTION - ADD/DROP PORT TIMING
8.13.1
Egress Direction - Add Port Timing
FIGURE 78. ILLUSTRATION OF THE EGRESS-DIRECTION ADD PORT SIGNALS
t95
t93
t91
EG_TE1TxCLK
EG_TE1TxDATA[7:0]
EG_TE1TxOHInd[4:0]
EG_TE1TxSLOT0
t96
EG_TE1TxVALID
t94
t92
t97
t98
Table 302
Timing
Symbol
Timing Information for the Egress-Direction Add Port Signals
Description
Min
Typ
Max
Units
t91
EG_TE1TxDATA[7:0] to rising edge of EG_TE1TxCLK set-up
time
7.0
ns
t92
Rising edge of EG_TE1TxCLK to EG_TE1TxDATA[7:0] hold time
2.0
ns
t93
EG_TE1TxOHInd[4:0] to rising edge of EG_TE1TxCLK set up
time
7.0
ns
t94
Rising edge of EG_TE1TxCLK to EG_TE1TxOHInd[4:0] hold time
2.0
ns
t95
EG_TE1TxSLOT0 to rising edge of EG_TE1TxCLK set-up time
7.0
ns
t96
Rising edge of EG_TE1TxCLK to EG_TE1TxSLOT0 hold time
2.0
ns
t97
EG_TE1TxVALID to rising edge of EG_TE1TxCLK set-up time
7.0
ns
t98
Rising Edge of EG_TE1TxCLK to EG_TE1TxVALID hold time
2.0
ns
334
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
8.13.2
REV. 1.0.1
Egress Direction - Drop Port Timing
FIGURE 79. ILLUSTRATION OF THE EGRESS-DIRECTION DROP PORT SIGNALS
t99
t100
t101
t102
IG_TE1RxCLK
IG_TE1RxDATA[7:0]
IG_TE1RxOHInd[4:0]
IG_TE1RxSLOT0
IG_TE1RxVALID
Table 303
Timing Information for the Egress-Direction Drop Port Signals
Timing
Symbol
Description
Min
t99
Falling Edge of EG_TE1RxCLK to EG_TE1RxVALID output delay
-0.2
t100
Rising edge of EG_TE1RxCLK to EG_TE1RxDATA[7:0] hold time
6.0
ns
t101
EG_TE1RxOHInd[4:0] to rising edge of EG_TE1RxCLK set up
time
4.5
ns
t102
Rising edge of EG_TE1RxCLK to EG_TE1RxOHInd[4:0] hold time
6.0
ns
335
Typ
Max
Units
3.0
ns
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
9.0 ELECTRICAL CHARACTERISTICS
TABLE 304: ABSOLUTE MAXIMUM RATINGS
SYMBOL
PARAMETER
MIN
MAX
UNITS
COMMENTS
VDD
Supply Voltage
-0.5
3.465
v
Note 1
VDD18
Supply Voltage
-0.5
1.890
v
Note 1
VIn
Input Voltage
-0.5
5.5
V
Note 1
STEMP
Storage Temperature
-65
+150
°C
Note 1
ATEMP
Ambient Operating Temperature
-40
+85
°C
Industrial Tem p Grade
ThetaJA0
Thermal Resistance (without heatsink)
19.5
°C/W
0 lfpm airflow
ThetaJA100
Thermal Resistance (without heatsink)
16.8
°C/W
100 lf pm airflow
ThetaJA200
Thermal Resistance (without heatsink)
15.7
°C/W
200 lf pm airflow
ThetaJA400
Thermal Resistance (without heatsink)
14.6
°C/W
400 lf pm airflow
ThetaJA0H
Thermal Resistance (with ext fin-type heatsink)
13.4
°C/W
0 lfpm airflow
ThetaJA100H
Thermal Resistance (with ext fin-type heatsink)
10.0
°C/W
100 lfpm airflow
ThetaJA200H
Thermal Resistance (with ext fin-type heatsink)
9.2
°C/W
200 lfpm airflow
ThetaJA400H
Thermal Resistance (with ext fin-type heatsink)
8.5
°C/W
400 lfpm airflow
LFPMMIN
Minimum Airflow Required for Operation
lfpm
Maximum Ambient Operating
Temperature Dependent
JTEMPMAX
Maximum Junction Temperature
°C
Note 1
MLEVL
Exposure to Moisture
-+125
5
level
EIA/JEDEC
JESD22-A112-8
ESD
ESD Rating - HBM
2000
v
Note 2
Notes:
1. Exposure to or operating near the Min or Max values for extended periods may cause permanent failure and impair
reliabilty of the device.
2. ESD testing method is per JESD22-A114.
336
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 305: DC DIGITAL INPUT AND OUTPUT ELECTRICAL CHARACTERISTICS
VDDIO = 3.3V + 5% , VDDCORE = 1.8V + 5%, TA=25°C, unless otherwise specified
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
Power Supply Voltage (3.3V)
VDD33
3.13
3.3
3.46
V
Power Supply Voltage (1.8V)
VDD18
1.71
1.8
1.89
V
Current Consumption (3.3V) PRBS pattern IDD33120Ω−PRBS
697
mA
Current Consumption (1.8V) PRBS pattern IDD18120Ω−PRBS
345
mA
Power Consumption (3.3V) - PRBS pattern P33120Ω−PRBS
2.30
W
Power Consumption (1.8V) - PRBS pattern P18120Ω−PRBS
0.62
W
Total Power Consumption- PRBS pattern Ptotal120Ω−PRBS
2.92
W
Current Consumption (3.3V) all "ones" patt IDD33120Ω−ONES
915
mA
Current Consumption (1.8V) all "ones" patt IDD18120Ω−ONES
345
mA
Power Consumption (3.3V) - all "ones" patt P33120Ω−ONES
3.02
W
Power Consumption (1.8V) - all "ones" patt P18120Ω−ONES
0.62
W
Total Power Consumption- all "ones" patt Ptotal120Ω−ONES
3.64
W
Current Consumption (3.3V) PRBS pattern IDD3375Ω−PRBS
742
mA
Current Consumption (1.8V) PRBS pattern IDD1875Ω−PRBS
345
mA
Power Consumption (3.3V) - PRBS pattern
P3375Ω−PRBS
2.45
W
Power Consumption (1.8V) - PRBS pattern
P1875Ω−PRBS
0.62
W
Total Power Consumption- PRBS pattern
Ptotal75Ω−PRBS
3.07
W
Current Consumption (3.3V) all "ones" patt IDD3375Ω−ONES
1008
mA
Current Consumption (1.8V) all "ones" patt IDD1875Ω−ONES
345
mA
Power Consumption (3.3V) - all "ones" patt
P3375Ω−ONES
3.33
W
Power Consumption (1.8V) - all "ones" patt
P1875Ω−ONES
0.62
W
Total Power Consumption- all "ones" patt
Ptotal75Ω−ONES
3.95
W
Input High Voltage
VIH
2.0
-
5.0
V
Input Low Voltage
VIL
-0.5
-
0.8
V
Output High Voltage IOH=-2.0mA
VOH
2.4
-
Output Low Voltage IOL=2.0mA
VOL
-
-
0.4
V
Input Leakage Current
IL
-
-
±10
µA
Input Capacitance
CI
-
5.0
Output Load Capacitance
CL
-
-
V
pF
25
NOTE: 1. Current and Power Consumption values are for 120Ω and 75Ω internal terminations and under load.
NOTE: 2. Input leakage current excludes pins that are internally pulled "Low" or "High"
337
pF
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
TABLE 306: E1 RECEIVER ELECTRICAL CHARACTERISTICS
PARAMETER
MIN
TYP.
MAX
UNIT
TEST CONDITIONS
VDDIO = 3.3V + 5% , VDDCORE = 1.8V + 5%, TA=25°C, unless otherwise specified
Receiver loss of signal:
Number of consecutive
zeros before LOS is set
-
32
-
bit
Input signal level at LOS
13
16
-
dB
RLOS Clear
12.5
-
-
% ones
Receiver Sensitivity
Cable + Flat Loss
6+6
-
-
dB
With nominal pulse amplitude of 3.0V for
120Ω and 2.37V for 75Ω application.
Interference Margin
-18
-14
-
dB
With 6dB cable loss
Input Impedance
15
-
KΩ
Jitter Tolerance:
1 Hz
10KHz---100KHz
37
0.3
-
-
UIpp
UIpp
-
20
36
0.5
KHz
dB
-
10
1.5
-
Hz
Hz
12
18
14
-
-
dB
dB
dB
Recovered Clock Jitter
Transfer Corner Frequency
Peaking Amplitude
Jitter Attenuator Corner
Frequency(-3dB curve)
JABW=0
JSBW=1
Return Loss:
51KHz --- 102KHz
102KHz --- 2048KHz
2048KHz --- 3072KHz
Cable attenuation @1024KHz
ITU-G.775, ETS1 300 233
ITU G.823
ITU G.736
ITU G.736
338
ITU G.703
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
TABLE 307: E1 TRANSMITTER ELECTRICAL CHARACTERISTICS
VDDIO = 3.3V + 5% , VDDCORE = 1.8V + 5%, TA=25°C, unless otherwise specified
PARAMETER
MIN
TYP
MAX
UNIT
AMI Output Pulse Amplitude
75Ω
120Ω
2.13
2.70
2.37
3.00
2.60
3.30
V
V
Output Pulse Width
224
244
264
ns
Output Pulse Width Ratio
0.95
-
1.05
ITU-G.703
Output Pulse Amplitude Ratio
0.95
-
1.05
ITU-G.703
-
0.025
0.05
UIp-p
15
9
8
-
-
dB
dB
dB
Jitter Added by the Transmitter
Output
Output Return Loss
51kHz - 102kHz
102kHz - 2048kHz
2048kHz - 3072kHz
339
TEST CONDITION
1:2 Transformer
Broad Band with jitter free TCLK
applied to the input.
ETSI 300 166
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
10.0 BACKGROUND AND PROTOCOLS
This section intends to provide a background coverage of the theory of communication protocols involved in
Voyager-Lite development. Only brief descriptions of their formats, control flows, and application-specific
features are presented here.
10.1
SYNCHRONOUS DIGTIAL HIERARCHY (SDH) STANDARD
This section intends to provide a background coverage of the theory of communication protocols involved in
SDH standard. Only brief descriptions of their rates, formats, control flows, and application-specific features
are presented here.
Synchronous digital hierarchy (SDH): The SDH is a hierarchical set of digital transport structures,
standardized for the transport of suitably adapted payloads over physical transmission networks.
Synchronous transport module (STM): An STM is the information structure used to support section layer
connections in the SDH. It consists of information payload and Section Overhead (SOH) information fields
organized in a block frame structure which repeats every 125 µs. The information is suitably conditioned for
serial transmission on the selected media at a rate which is synchronized to the network. A basic STM is
defined at 155 520 kbit/s. This is termed STM-1. Higher capacity STMs are formed at rates equivalent to N
times this basic rate. STM capacities for N=4, N=16, N=64 and N=256 are defined; higher values are under
consideration.
The STM-0 comprises a single Administrative Unit of level 3. The STM-N, N = 1, comprises a single
Administrative Unit Group of level N (AUG-N) together with the SOH.
Virtual container-n (VC-n): A Virtual Container is the information structure used to support path layer
connections in the SDH. It consists of information payload and Path Overhead (POH) information fields
organized in a block frame structure which repeats every 125 or 500 us. Alignment information to identify VC-n
frame start is provided by the server network layer.
Two types of Virtual Containers have been identified.
• Lower order Virtual Container-n: VC-n (n=1, 2, 3). This element comprises a single Container-n
(n=1, 2, 3) plus the lower order Virtual Container POH appropriate to that level.
• Higher order Virtual Container-n: VC-n (n=3, 4). This element comprises either a single
Container-n (n=3, 4) or an assembly of Tributary Unit Groups (TUG-2s or TUG-3s), together with Virtual
Container POH appropriate to that level.
Administrative unit-n (AU-n): An Administrative Unit is the information structure which provides adaptation
between the higher order path layer and the multiplex section layer. It consists of an information payload (the
higher order Virtual Container) and an Administrative Unit pointer which indicates the offset of the payload
frame start relative to the multiplex section frame start.
Two Administrative Units are defined. The AU-4 consists of a VC-4 plus an Administrative Unit pointer which
indicates the phase alignment of the VC-4 with respect to the STM-N frame. The AU-3 consists of a VC-3 plus
an Administrative Unit pointer which indicates the phase alignment of the VC-3 with respect to the STM-N
frame. In each case the Administrative Unit pointer location is fixed with respect to the STM-N frame.
One or more Administrative Units occupying fixed, defined positions in an STM payload are termed
an Administrative Unit Group (AUG). An AUG-1 consists of a homogeneous assembly of AU-3s or an AU-4.
Tributary unit-n (TU-n): A Tributary Unit is an information structure which provides adaptation between the
lower order path layer and the higher order path layer. It consists of an information payload (the lower order
Virtual Container) and a Tributary Unit pointer which indicates the offset of the payload frame start relative to
the higher order Virtual Container frame start.
The TU-n (n=1, 2, 3) consists of a VC-n together with a Tributary Unit pointer. One or more Tributary Units,
occupying fixed, defined positions in a higher order VC-n payload is termed a Tributary Unit Group (TUG).
TUGs are defined in such a way that mixed capacity payloads made up of different size Tributary Units can be
340
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
constructed to increase flexibility of the transport network. A TUG-2 consists of a homogeneous assembly of
identical TU-1s or a TU-2. A TUG-3 consists of a homogeneous assembly of TUG-2s or a TU-3.
Container-n (n=1-4): A container is the information structure which forms the network synchronous
information payload for a Virtual Container. For each of the defined Virtual Containers there is a corresponding
container. Adaptation functions have been defined for many common network rates into a limited number of
standard containers.
341
XRT86SH221
REV. 1.0.1
10.2
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
BASIC FRAME STRUCTURE
STM-N frame structure is shown in Figure 80. The three main areas of the STM-N frame are indicated:
• SOH;
• Administrative Unit pointer(s);
• Information payload.
FIGURE 80. STM-N FRAME STRUCTURE
270 x N Columns (bytes)
(90 Columns for STM-0)
9 x N (3 for STM-0)
261 x N (87 for STM-0)
1
Section Overhead
SOH
3
4
Administrative unit pointer(s)
STN-N Payload
5
Section Overhead
SOH
9
342
9 rows
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
Section overhead
Rows 1-3 and 5-9 of columns 1 to 9 x N of the STM-N in Figure 80 are dedicated to the SOH.
Administrative Unit pointers
Row 4 of columns 1 to 9 × N in Figure 80 is available for Administrative Unit pointers.
Administrative Units in the STM-N
The STM-N payload supports one AUG-N where the:
A. AUG-256 may consist of:
1. four AUG-64;
2. one AU-4-256c.
B. AUG-64 may consist of:
1. four AUG-16;
2. one AU-4-64c.
C. AUG-16 may consist of:
1. four AUG-4;
2. one AU-4-16c.
D. AUG-4 may consist of:
1. four AUG-1;
2. one AU-4-4c.
E. AUG-1 may consist of:
1. one AU-4;
2. three AU-3s.
The VC-n associated with each AU-n does not have a fixed phase with respect to the STM-N frame. The
location of the first byte of the VC-n is indicated by the AU-n pointer. The AU-n pointer is in a fixed location in
the STM-N frame.
The AU-4 may be used to carry, via the VC-4, a number of TU-ns (n=1, 2, 3) forming a two-stage multiplex. The
VC-n associated with each TU-n does not have a fixed phase relationship with respect to the start of the VC-4.
The TU-n pointer is in a fixed location in the VC-4 and the location of the first byte of the VC-n is indicated by
the TU-n pointer.
The AU-3 may be used to carry, via the VC-3, a number of TU-ns (n=1, 2) forming a two-stage multiplex. The
VC-n associated with each TU-n does not have a fixed phase relationship with respect to the start of the VC-3.
The TU-n pointer is in a fixed location in the VC-3 and the location of the first byte of the VC-n is indicated by
the TU-n pointer.
343
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
11.0 REFERENCE DOCUMENTATION
• Telcordia, Transport Systems Generic Requirements (TSGR): Common Requirements GR-499-CORE Issue
2, December 1998
• ITU-T Recommendation G.707 Network Node Interface for the Synchronous Digital Hierarchy (SDH) (03/96)
• ITU-T Recommendation G.783 Characteristics of Synchronous Digital Hierarchy (SDH) Equipment
Functional Blocks (01/94)
• ITU/CCITT Recommendation O.151 Error Performance Measuring Equipment Operating at the Primary Rate
and Above (10/92)
• ANSI T1.107, "Digital Hierarchy - Formats Specifications", 1988.
• ANSI 1.107a, Addendum to ANSI T1.107, 1988", 1990.
• ANSI T1.403 - 1999, Network-to-Customer Installation - DS1 Metallic Interface
• ANSI T1.408-1990, Integrated Services Digital Network (ISDN) Primary Rate - Customer Installation Metallic
Interfaces Layer 1 Specification
• ETS 300 011, ISDN primary rte user-network interface layer 1 specification and test principles, April 1992
• ETS 300 233, ISDN; Access digital section for ISDN primary rate, May 1994
• Intel i750, i860, i960 Processors and Related Products Data Book, 1994
• Intel 8-bit Embedded Controllers Data Book
• Motorola MC68302, Integrated Multi-Protocol Processor User's Manual
11.1
11.1.1
TERMINOLOGY
NOMENCLATURE
"Transmit" refers to the flow of data from the user interface to the physical line interface.
"Receive" refers to the flow of data from the physical line interface to the user interface.
"Ingress" refers to the flow of data from the E1 LIU's to the SDH interface.
"Egress" refers to the flow of data from the SDH interface to the E1 LIU's.
11.1.2
SIGNAL NAME PREFIXES AND SUFFIXES
The following lists the convention used in this design for naming distinguished signals.
Tx
Signals pertaining to the DS1 transmit framer
Rx
Signals pertaining to the DS1 receive framer
Li
Signals pertaining to LIU interface module
p
Signals pertaining to microprocessor interface
11.1.3
ABBREVIATIONS
AIS
Alarm Indication Signal
AMI
Alternate Mask Inversion
AU
Administrative Unit
AUG
Administrative Unit Group
BIP
Bit Interleaved Parity
BPV
Bipolar Violation
CRC
Cyclic Redundancy Check
344
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
DSn
Digital Signal n (any of DS1, DS1A, DS1C or DS2)
DL
Data Link
FA
Frame Alignment
FAS
Frame Alignment Signal
FCS
Frame Check Sequence
FIFO
First In First Out
FPS
Framing Pattern Sequence
HDLC
High level Data Link Control protocol
ITU
The International Telecommunications Union
LAPD
Link Access Protocol D
LCV
Line Code Violation
LIU
Line Interface Unit
LOF
Loss Of Frame synchronization
LOP
Loss Of Pointer
LOS
Loss Of Signal
LTE
Line Terminating Equipment
MSOH
Multiplex Section Overhead
NRZ
Non Return to Zero
OH
OverHead
OOF
Out Of Frame synchronization
OC
Optical Carrier
PLM
Payload Label Mismatch
POH
Path Overhead
PM
Performance Monitor
PMDL
Path Maintenance Data Link
PMON
Performance Monitor
PTE
Path Terminating Equipment
RAI
Remote Alarm Indication
RDI
Remote Defect Indication
REI
Remote Error Indication
RFI
Remote Failure Indication
RSOH
Regenerator Section Overhead
SDH
Synchronous Digital Hierarchy
Rx
Receive
SF
Super Frame
SDH
Synchronous Digtial Hierarchy
SPE
Synchronous Payload Envelop
345
REV. 1.0.1
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
STM
Synchronous Transport Module
TU
Tributary Unit
TUG
Tributary Unit Group
Tx
Transmit
T1DM
T1 Data Multiplexer
mp(uP)
Microprocessor
VC
Virtual Container
VT
Virtual Tributary
346
XRT86SH221
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REV. 1.0.1
ORDERING INFORMATION
PRODUCT NUMBER
PACKAGE TYPE
OPERATING TEMPERATURE RANGE
XRT86SH221IB
388 PBGA
-40°C to +85°C
PACKAGE DIMENSIONS 388 PBGA
E
388 Ball Plastic Ball Grid Array
(27 mm x 27 mm, PBGA)
Rev. 2.00
(A1 corner feature is mfger option)
β
Note: The control dimension is in millimeter.
SYMBOL
A
A1
A2
A3
D
D1
D2
b
e
β
INCHES
MIN
MAX
0.067
0.106
0.016
0.028
0.008
0.028
0.039
0.051
1.055
1.071
0.984 BSC
0.937
0.953
0.024
0.035
0.039 BSC
10°
20°
347
MILLIMETERS
MIN
MAX
1.70
2.70
0.40
0.70
0.20
0.70
1.00
1.30
26.80
27.20
25.00 BSC
23.80
24.20
0.60
0.90
1.00 BSC
10°
20°
XRT86SH221
REV. 1.0.1
SDH-TO-PDH FRAMER/MAPPER WITH INTEGRATED 21-CHANNEL E1 SH LIU
REVISION HISTORY
REV. #
DATE
1.0.0
February 2008
1.0.1
August 2008
DESCRIPTION
Final Release datasheet of the XRT86SH221 SDH STM-1 VT Mapper with Integrated E1 LIU.
Updated register description 0x0267, 0x027A, 0x027B, 0x027F, 0x02A3, 0x02AB,
0x02B3, 0x02BF. Corrected Receive and Transmit Section and Path Trace Buffer
address locations on register 0x020A, 0x024F, 0x0287, 0x028A, 0x02A3, 0x074F,
0x0793, 0x07BB.
NOTICE
EXAR Corporation reserves the right to make changes to the products contained in this publication in order to
improve design, performance or reliability. EXAR Corporation assumes no responsibility for the use of any
circuits described herein, conveys no license under any patent or other right, and makes no representation that
the circuits are free of patent infringement. Charts and schedules contained here in are only for illustration
purposes and may vary depending upon a user’s specific application. While the information in this publication
has been carefully checked; no responsibility, however, is assumed for inaccuracies.
EXAR Corporation does not recommend the use of any of its products in life support applications where the
failure or malfunction of the product can reasonably be expected to cause failure of the life support system or
to significantly affect its safety or effectiveness. Products are not authorized for use in such applications unless
EXAR Corporation receives, in writing, assurances to its satisfaction that: (a) the risk of injury or damage has
been minimized; (b) the user assumes all such risks; (c) potential liability of EXAR Corporation is adequately
protected under the circumstances.
Copyright 2008 EXAR Corporation
Datasheet August 2008.
All effort hs been made to provide correct information in this data sheet, iIf discrepencies are found or more
information is required please contact Exar Application Engineering at <[email protected]>
Reproduction, in part or whole, without the prior written consent of EXAR Corporation is prohibited.
348