XRT86VL32 DUAL T1/E1/J1 FRAMER/LIU COMBO - HARDWARE DESCRIPTION SEPTEMBER 2007 REV. V1.2.1 GENERAL DESCRIPTION The XRT86VL32 is a two-channel 1.544 Mbit/s or 2.048 Mbit/s DS1/E1/J1 framer and LIU integrated solution featuring R3 technology (Relayless, Reconfigurable, Redundancy). The physical interface is optimized with internal impedance, and with the patented pad structure, the XRT86VL32 provides protection from power failures and hot swapping. The XRT86VL32 contains an integrated DS1/E1/J1 framer and LIU which provide DS1/E1/J1 framing and error accumulation in accordance with ANSI/ITU_T specifications. Each framer has its own framing synchronizer and transmit-receive slip buffers. The slip buffers can be independently enabled or disabled as required and can be configured to frame to the common DS1/E1/J1 signal formats. Each Framer block contains its own Transmit and Receive T1/E1/J1 Framing function. There are 3 Transmit HDLC controllers per channel which encapsulate contents of the Transmit HDLC buffers into LAPD Message frames. There are 3 Receive HDLC controllers per channel which extract the payload content of Receive LAPD Message frames from the incoming T1/E1/J1 data stream and write the contents into the Receive HDLC buffers. Each framer also contains a Transmit and Overhead Data Input port, which permits Data Link Terminal Equipment direct access to the outbound T1/E1/J1 frames. Likewise, a Receive Overhead output data port permits Data Link Terminal Equipment direct access to the Data Link bits of the inbound T1/E1/J1 frames. The XRT86VL32 fully meets all of the latest T1/E1/J1 specifications: ANSI T1/E1.107-1988, ANSI T1/ E1.403-1995, ANSI T1/E1.231-1993, ANSI T1/ E1.408-1990, AT&T TR 62411 (12-90) TR54016, and ITU G-703, G.704, G706 and G.733, AT&T Pub. 43801, and ETS 300 011, 300 233, JT G.703, JT G.704, JT G706, I.431. Extensive test and diagnostic functions include Loop-backs, Boundary scan, Pseudo Random bit sequence (PRBS) test pattern generation, Performance Monitor, Bit Error Rate (BER) meter, forced error insertion, and LAPD unchannelized data payload processing according to ITU-T standard Q.921. APPLICATIONS AND FEATURES (NEXT PAGE) FIGURE 1. XRT86VL32 2-CHANNEL DS1 (T1/E1/J1) FRAMER/LIU COMBO Local PCM Highway External Data Link Controller XRT86VL32 Tx Overhead In Rx Overhead Out 1 of 2-channels 1:2 Turns Ratio TTIP Tx Serial Data In 2-Frame Slip Buffer Elastic Store Rx Serial Data Out 2-Frame Slip Buffer Elastic Store Rx Framer Rx LIU Interface PRBS Generator & Analyser Performance Monitor HDLC/LAPD Controllers LIU & Loopback Control Tx Framer ST-BUS Tx Serial Clock Rx Serial Clock Tx LIU Interface LLB TRING LB RTIP RRING RxLOS Line Side 8kHz sync OSC Back Plane 1.544-16.384 Mbit/s 1:1 Turns Ratio Signaling & Alarms DMA Interface JTAG Microprocessor Interface 3 System (Terminal) Side INT TxON Memory D[7:0] µP A[13:0] Select 4 WR ALE_AS RD RDY_DTACK Intel/Motorola µP Configuration, Control & Status Monitor Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (510) 668-7000 • FAX (510) 668-7017 • www.exar.com XRT86VL32 DUAL T1/E1/J1 FRAMER/LIU COMBO - HARDWARE DESCRIPTION REV. V1.2.1 APPLICATIONS • High-Density T1/E1/J1 interfaces for Multiplexers, Switches, LAN Routers and Digital Modems • SONET/SDH terminal or Add/Drop multiplexers (ADMs) • T1/E1/J1 add/drop multiplexers (MUX) • Channel Service Units (CSUs): T1/E1/J1 and Fractional T1/E1/J1 • Digital Access Cross-connect System (DACs) • Digital Cross-connect Systems (DCS) • Frame Relay Switches and Access Devices (FRADS) • ISDN Primary Rate Interfaces (PRA) • PBXs and PCM channel bank • T3 channelized access concentrators and M13 MUX • Wireless base stations • ATM equipment with integrated DS1 interfaces • Multichannel DS1 Test Equipment • T1/E1/J1 Performance Monitoring • Voice over packet gateways • Routers FEATURES • Two independent, full duplex DS1 Tx and Rx Framer/LIUs • Two 512-bit (two-frame) elastic store, PCM frame slip buffers (FIFO) on TX and Rx provide up to 8.192 MHz asynchronous back plane connections with jitter and wander attenuation • Supports input PCM and signaling data at 1.544, 2.048, 4.096 and 8.192 Mbits. Also supports 2-channel multiplexed 12.352/16.384 (HMVIP/H.100) Mbit/s on the back plane bus • Programmable output clocks for Fractional T1/E1/J1 • Supports Channel Associated Signaling (CAS) • Supports Common Channel Signalling (CCS) • Supports ISDN Primary Rate Interface (ISDN PRI) signaling • Extracts and inserts robbed bit signaling (RBS) • 3 Integrated HDLC controllers per channel for transmit and receive, each controller having two 96-byte buffers (buffer 0 / buffer 1) • HDLC Controllers Support SS7 • Timeslot assignable HDLC • V5.1 or V5.2 Interface • Automatic Performance Report Generation (PMON Status) can be inserted into the transmit LAPD interface every 1 second or for a single transmission • Alarm Indication Signal with Customer Installation signature (AIS-CI) • Remote Alarm Indication with Customer Installation (RAI-CI) • Gapped Clock interface mode for Transmit and Receive. 2 XRT86VL32 REV. V1.2.1 DUAL T1/E1/J1 FRAMER/LIU COMBO - HARDWARE DESCRIPTION • Intel/Motorola and Power PC interfaces for configuration, control and status monitoring • Parallel search algorithm for fast frame synchronization • Wide choice of T1 framing structures: SF/D4, ESF, SLC®96, T1DM and N-Frame (non-signaling) • Direct access to D and E channels for fast transmission of data link information • PRBS, QRSS, and Network Loop Code generation and detection • Programmable Interrupt output pin • Supports programmed I/O and DMA modes of Read-Write access • Each framer block encodes and decodes the T1/E1/J1 Frame serial data • Detects and forces Red (SAI), Yellow (RAI) and Blue (AIS) Alarms • Detects OOF, LOF, LOS errors and COFA conditions • Loopbacks: Local (LLB) and Line remote (LB) • Facilitates Inverse Multiplexing for ATM • Performance monitor with one second polling • Boundary scan (IEEE 1149.1) JTAG test port • Accepts external 8kHz Sync reference • 1.8V Inner Core • 3.3V CMOS operation with 5V tolerant inputs • 225-pin PBGA package with -40°C to +85°C operation ORDERING INFORMATION PART NUMBER PACKAGE OPERATING TEMPERATURE RANGE XRT86VL32IB 225 Plastic Ball Grid Array -40°C to +85°C 3 XRT86VL32 DUAL T1/E1/J1 FRAMER/LIU COMBO - HARDWARE DESCRIPTION REV. V1.2.1 LIST OF PARAGRAPHS 1.0 PIN LIST ...................................................................................................................................................4 2.0 PIN DESCRIPTIONS ................................................................................................................................6 I XRT86VL32 REV. V1.2.1 DUAL T1/E1/J1 FRAMER/LIU COMBO - HARDWARE DESCRIPTION LIST OF TABLES Table 1:: List by Pin Number ............................................................................................................................................. 4 Table 2:: Pin Types ............................................................................................................................................................ 6 Table 3:: Pin Description Structure .................................................................................................................................... 6 Table 4:: XRT86VL32 Power Consumption .................................................................................................................... 42 Table 5:: E1 Receiver Electrical Characteristics .............................................................................................................. 50 Table 6:: T1 Receiver Electrical Characteristics .............................................................................................................. 51 Table 7:: E1 Transmitter Electrical Characteristics .......................................................................................................... 52 Table 8:: E1 Transmit Return Loss Requirement ............................................................................................................ 52 Table 9:: T1 Transmitter Electrical Characteristics .......................................................................................................... 53 Table 10:: Transmit Pulse Mask Specification ................................................................................................................. 54 Table 11:: DSX1 Interface Isolated pulse mask and corner points .................................................................................. 55 Table 12:: AC Electrical Characteristics .......................................................................................................................... 56 Table 13:: Intel Microprocessor Interface Timing Specifications ..................................................................................... 57 Table 14:: Intel Microprocessor Interface Timing Specifications ..................................................................................... 58 Table 15:: Motorola Asychronous Mode Microprocessor Interface Timing Specifications .............................................. 59 Table 16:: Power PC 403 Microprocessor Interface Timing Specifications ..................................................................... 60 II XRT86VL32 DUAL T1/E1/J1 FRAMER/LIU COMBO - HARDWARE DESCRIPTION REV. V1.2.1 LIST OF FIGURES Figure 1.: XRT86VL32 2-channel DS1 (T1/E1/J1) Framer/LIU Combo ............................................................................. 1 Figure 2.: Framer System Transmit Timing Diagram (Base Rate/Non-Mux) ................................................................... 43 Figure 3.: Framer System Receive Timing Diagram (RxSERCLK as an Output) ............................................................ 44 Figure 4.: Framer System Receive Timing Diagram (RxSERCLK as an Input) ............................................................... 45 Figure 5.: Framer System Transmit Timing Diagram (HMVIP and H100 Mode) ............................................................. 46 Figure 6.: Framer System Receive Timing Diagram (HMVIP/H100 Mode) ..................................................................... 47 Figure 7.: Framer System Transmit Overhead Timing Diagram ...................................................................................... 48 Figure 8.: Framer System Receive Overhead Timing Diagram (RxSERCLK as an Output) ........................................... 49 Figure 9.: Framer System Receive Overhead Timing Diagram (RxSERCLK as an Input) .............................................. 49 Figure 10.: ITU G.703 Pulse Template ............................................................................................................................ 54 Figure 11.: DSX-1 Pulse Template (normalized amplitude) ............................................................................................. 55 Figure 12.: Intel µP Interface Timing During Programmed I/O Read and Write Operations When ALE Is Not Tied ’HIGH’ 57 Figure 13.: Intel µP Interface Timing During Programmed I/O Read and Write Operations When ALE Is Tied ’HIGH’ .. 58 Figure 14.: Motorola Asychronous Mode Interface Signals During Programmed I/O Read and Write Operations ......... 59 Figure 15.: Power PC 403 Interface Signals During Programmed I/O Read and Write Operations ............................... 60 III DUAL T1/E1/J1 FRAMER/LIU COMBO - HARDWAREXRT86VL32 DESCRIPTION REV. V1.2.1 1.0 PIN LIST TABLE 1: LIST BY PIN NUMBER PIN PIN NAME PIN PIN NAME PIN PIN NAME B14 VSS D12 TXCHN0_1 H3 TVDD1 B15 NC D13 NC H4 NC PIN PIN NAME B16 NC D14 NC H15 RXCASYNC2 A1 GNDPLL B17 NC D15 RXSERCLK2 H16 RXCHN2_0 A2 AVDD18 B18 NC D16 VDD H17 RXCHCLK2 A3 E1MCLKnOUT C1 GNDPLL D17 NC H18 NC A4 MCLKIN C2 VDDPLL18 D18 NC J1 RTIP2 A5 VSS C3 JTAG_Tip E1 RTIP0 J2 RGND2 A6 TRST C4 DVDD18 E2 RGND0 J3 RVDD2 A7 RXSERCLK0 C5 DGND E3 RVDD0 J4 TTIP2 A8 RXCHCLK0 C6 TMS E4 TTIP0 J15 TXSERCLK2 A9 RXOHCLK0 C7 TCLK E5 ANALOG J16 DVDD18 A10 TXMSYNC0 C8 RXCRCSYNC0 E15 NC J17 RXCRCSYNC2 A11 TXOHCLK0 C9 RXCHN0_1 E16 NC J18 RXSER2 A12 TXSERCLK0 C10 RXCHN0_3 E17 NC K1 RRING2 A13 TXCHNCLK0 C11 RXOH0 E18 NC K2 TGND2 A14 TXCHN0_3 C12 TXOH0 F1 RRING0 K3 TVDD2 A15 NC C13 NC F2 TGND0 K4 TRING2 A16 NC C14 TXCHN0_4 F3 TVDD0 K15 RXOH2 A17 NC C15 NC F4 TRING0 K16 RXCHN2_4 A18 NC C16 VSS F15 VSS K17 RXOHCLK2 B1 VDDPLL18 C17 NC F16 NC K18 RXCHN2_2 B2 JTAG_Ring C18 NC F17 NC L1 DGND B3 AGND D1 GNDPLL F18 RXSYNC2 L2 RGND3 B4 T1MCLKnOUT D2 VDDPLL18 G1 DGND L3 RVDD3 B5 aTEST D3 VDDPLL18 G2 RGND1 L4 NC B6 TDI D4 GNDPLL G3 RVDD1 L15 TXSYNC2 B7 RXLOS0 D5 TDO G4 NC L16 RXCHN2_3 B8 DVDD18 D6 RXSER0 G15 RXCHN2_1 L17 TXMSYNC2 B9 RXCHN0_2 D7 RXCHN0_0 G16 RXLOS2 L18 TXSER2 B10 RXCHN0_4 D8 RXSYNC0 G17 NC M1 DGND B11 TEST D9 TXSYNC0 G18 NC M2 TGND3 B12 TXCHN0_0 D10 RXCASYNC0 H1 DGND M3 TVDD3 B13 TXCHN0_2 D11 TXSER0 H2 TGND1 M4 NC 4 DUAL T1/E1/J1 FRAMER/LIU COMBO - HARDWARE DESCRIPTION XRT86VL32 REV. V1.2.1 PIN PIN NAME PIN PIN NAME PIN PIN NAME M15 VSS R15 VDD U13 NC M16 VSS R16 NC U14 NC M17 TXCHN2_1 R17 NC U15 NC M18 TXCHN2_0 R18 NC U16 VSS N1 TxON T1 fADDR U17 NC N2 LOP T2 ACK0 U18 NC N3 NC T3 RDY V1 PCLK N4 8KEXTOSC T4 DATA0 V2 PTYPE0 N15 TXCHN2_4 T5 VSS V3 RD N16 TXCHN2_3 T6 ADDR3 V4 PTYPE1 N17 TXCHNCLK2 T7 ADDR7 V5 ADDR1 N18 TXOHCLK2 T8 PTYPE2 V6 ADDR5 P1 RESET T9 VDD V7 ADDR8 P2 E1OSCCLK T10 DATA4 V8 DATA2 P3 VDD T11 NC V9 DATA3 P4 T1OSCCLK T12 NC V10 DATA5 P15 TXOH2 T13 NC V11 ADDR13 P16 NC T14 NC V12 WR P17 NC T15 NC V13 CS P18 NC T16 TXCHN2_2 V14 VSS R1 REQ0 T17 NC V15 NC R2 8KSYNC T18 NC V16 NC R3 REQ1 U1 iADDR V17 NC R4 VSS U2 ACK1 V18 NC R5 ADDR2 U3 DATA1 R6 ADDR6 U4 DBEN R7 ADDR10 U5 ADDR0 R8 INT U6 ADDR4 R9 ADDR11 U7 DVDD18 R10 ADDR12 U8 ALE R11 DATA7 U9 ADDR9 R12 NC U10 BLAST R13 DVDD18 U11 DATA6 R14 VSS U12 NC 5 XRT86VL32 REV. V1.2.1 DUAL T1/E1/J1 FRAMER/LIU COMBO - HARDWARE DESCRIPTION 2.0 PIN DESCRIPTIONS There are six types of pins defined throughout this pin description and the corresponding symbol is presented in table below. The per-channel pin is indicated by the channel number or the letter ’n’ which is appended at the end of the signal name, for example, TxSERn, where "n" indicates channels 0 and 2. All output pins are "tristated" upon hardware RESET. TABLE 2: PIN TYPES SYMBOL PIN TYPE I Input O Output I/O Bidirectional GND Ground PWR Power NC No Connect The structure of the pin description is divided into thirteen groups, as presented in the table below TABLE 3: PIN DESCRIPTION STRUCTURE SECTION PAGE NUMBER Transmit System Side Interface page 7 Transmit Overhead Interface page 15 Receive Overhead Interface page 17 Receive System Side Interface page 18 Receive Line Interface page 26 Transmit Line Interface page 28 Timing Interface page 28 JTAG Interface page 30 Microprocessor Interface page 31 Power Pins (3.3V) page 40 Power Pins (1.8V) page 40 Ground Pins page 41 No Connect Pins page 41 6 XRT86VL32 DUAL T1/E1/J1 FRAMER/LIU COMBO - HARDWARE DESCRIPTION REV. V1.2.1 TRANSMIT SYSTEM SIDE INTERFACE SIGNAL NAME BALL# TYPE OUTPUT DRIVE(MA) TxSER0/ TxPOS0 TxSER2/ TxPOS2 D11 I - L18 DESCRIPTION Transmit Serial Data Input (TxSERn)/Transmit Positive Digital Input (TxPOSn): The exact function of these pins depends on the mode of operation selected, as described below. DS1/E1 Mode - TxSERn These pins function as the transmit serial data input on the system side interface, which are latched on the rising edge of the TxSERCLKn pin. Any payload data applied to this pin will be inserted into an outbound DS1/E1 frame and output to the line. In DS1 mode, the framing alignment bits, facility data link bits, CRC-6 bits, and signaling information can also be inserted from this input pin if configured appropriately. In E1 mode, all data intended to be transported via Time Slots 1 through 15 and Time slots 17 through 31 must be applied to this input pin. Data intended for Time Slots 0 and 16 can also be applied to this input pin If configured accordingly. DS1 or E1 High-Speed Multiplexed Mode* - TxSERn In this mode, these pins are used as the high-speed multiplexed data input pin on the system side. High-speed multiplexed data of channels 0-3 must be applied to TxSER0 in a byte or bit-interleaved way. The framer latches in the multiplexed data on TxSER0 using TxMSYNC/TxINCLK and demultiplexes this data into 4 serial streams. The LIU block will then output the data to the line interface using TxSERCLKn. DS1 or E1 Framer Bypass Mode - TxPOSn In this mode, TxSERn is used for the positive digital input pin (TxPOSn) to the LIU. NOTE: 1. *High-speed multiplexed modes include (For T1/E1) 16.384MHz HMVIP, H.100, Bit-multiplexed modes, and (For T1 only) 12.352MHz Bit-multiplexed mode. 2. In DS1 high-speed modes, the DS-0 data is mapped into an E1 frame by ignoring every fourth time slot (don’t care). 3. These 8 pins are internally pulled “High” for each channel. 7 XRT86VL32 DUAL T1/E1/J1 FRAMER/LIU COMBO - HARDWARE DESCRIPTION REV. V1.2.1 TRANSMIT SYSTEM SIDE INTERFACE SIGNAL NAME BALL# TYPE OUTPUT DRIVE(MA) TxSERCLK0/ TxLINECLK0 TxSERCLK2/ TxLINECLK2 A12 I/O 12 J15 DESCRIPTION Transmit Serial Clock (TxSERCLKn)/Transmit Line Clock (TxSERCLKn): The exact function of these pins depends on the mode of operation selected, as described below. In Base-Rate Mode (1.544MHz/2.048MHz) - TxSERCLKn: This clock signal is used by the transmit serial interface to latch the contents on the TxSERn pins into the T1/E1 framer on the rising edge of TxSERCLKn. These pins can be configured as input or output as described below. When TxSERCLKn is configured as Input: These pins will be inputs if the TxSERCLK is chosen as the timing source for the transmit framer. Users must provide a 1.544MHz clock rate to this input pin for T1 mode of operation, and 2.048MHz clock rate in E1 mode. When TxSERCLKn is configured as Output: These pins will be outputs if either the recovered line clock or the MCLK PLL is chosen as the timing source for the T1/E1 transmit framer. The transmit framer will output a 1.544MHz clock rate in T1 mode of operation, and a 2.048MHz clock rate in E1 mode. DS1/E1 High-Speed Backplane Modes* - TxSERCLKn as INPUT ONLY In this mode, TxSERCLK is an optional clock signal input which is used as the timing source for the transmit line interface, and is only required if TxSERCLK is chosen as the timing source for the transmit framer. If TxSERCLK is chosen as the timing source, system equipment should provide 1.544MHz (For T1 mode) or 2.048MHz (For E1 mode) to the TxSERCLKn pins on each channel. TxSERCLK is not required if either the recovered clock or MCLK PLL is chosen as the timing source of the device. High speed or multiplexed data is latched into the device using the TxMSYNC/TxINCLK high-speed clock signal. DS1 or E1 Framer Bypass Mode - TxLINECLKn In this mode, TxSERCLKn is used as the transmit line clock (TxLINECLK) to the LIU. NOTE: *High-speed backplane modes include (For T1/E1) 2.048MVIP, 4.096MHz, 8.192MHz, 16.384MHz HMVIP, H.100, Bit-multiplexed modes, and (For T1 only) 12.352MHz Bit-multiplexed mode. NOTE: In DS1 high-speed modes, the DS-0 data is mapped into an E1 frame by ignoring every fourth time slot (don’t care). NOTE: These 8 pins are internally pulled “High” for each channel. 8 XRT86VL32 DUAL T1/E1/J1 FRAMER/LIU COMBO - HARDWARE DESCRIPTION REV. V1.2.1 TRANSMIT SYSTEM SIDE INTERFACE SIGNAL NAME BALL# TYPE OUTPUT DRIVE(MA) TxSYNC0/ TxNEG0 TxSYNC2/ TxNEG2 D9 I/O 12 L15 DESCRIPTION Transmit Single Frame Sync Pulse (TxSYNCn) / Transmit Negative Digital Input (TxNEGn): The exact function of these pins depends on the mode of operation selected, as described below. DS1/E1 Base Rate Mode (1.544MHz/2.048MHz) - TxSYNCn: These TxSYNCn pins are used to indicate the single frame boundary within an outbound T1/E1 frame. In both DS1 or E1 mode, the single frame boundary repeats every 125 microseconds (8kHz). In DS1/E1 base rate, TxSYNCn can be configured as either input or output as described below. When TxSYNCn is configured as an Input: Users must provide a signal which must pulse "High" for one period of TxSERCLK during the first bit of an outbound DS1/E1 frame. It is imperative that the TxSYNC input signal be synchronized with the TxSERCLK input signal. When TxSYNCn is configured as an Output: The transmit T1/E1 framer will output a signal which pulses "High" for one period of TxSERCLK during the first bit of an outbound DS1/E1 frame. DS1/E1 High-Speed Backplane Modes* - TxSYNCn as INPUT ONLY: In this mode, TxSYNCn must be an input regardless of the clock source that is chosen to be the timing source for the transmit framer. In 2.048MVIP/4.096/8.192MHz high-speed modes, TxSYNCn pins must be pulsed ’High’ for one period of TxSERCLK during the first bit of the outbound T1/E1 frame. In HMVIP mode, TxSYNC0 must be pulsed ’High’ for 4 clock cycles of the TxMSYNC/TxINCLK signal in the position of the first two and the last two bits of a multiplexed frame. In H.100 mode, TxSYNC0 must be pulsed ’High’ for 2 clock cycles of the TxMSYNC/TxINCLK signal in the position of the first and the last bit of a multiplexed frame. DS1 or E1 Framer Bypass Mode - TxNEGn In this mode, TxSYNCn is used as the negative digital input pin (TxNEG) to the LIU. NOTE: *High-speed backplane modes include (For T1/E1) 2.048MVIP, 4.096MHz, 8.192MHz, 16.384MHz HMVIP, H.100, Bit-multiplexed modes, and (For T1 only) 12.352MHz Bit-multiplexed mode. NOTE: In DS1 high-speed modes, the DS-0 data is mapped into an E1 frame by ignoring every fourth time slot (don’t care). NOTE: These 8 pins are internally pulled “Low” for each channel. 9 XRT86VL32 DUAL T1/E1/J1 FRAMER/LIU COMBO - HARDWARE DESCRIPTION REV. V1.2.1 TRANSMIT SYSTEM SIDE INTERFACE SIGNAL NAME BALL# TYPE OUTPUT DRIVE(MA) TxMSYNC0/ TxINCLK0 TxMSYNC2/ TxINCLK2 A10 I/O 12 L17 DESCRIPTION Multiframe Sync Pulse (TxMSYNCn) / Transmit Input Clock (TxINCLKn) The exact function of these pins depends on the mode of operation selected, as described below. DS1/E1 Base Rate Mode (1.544MHz/2.048MHz) - TxMSYNCn In this mode, these pins are used to indicate the multi-frame boundary within an outbound DS1/E1 frame. In DS1 ESF mode, TxMSYNCn repeats every 3ms. In DS1 SF mode, TxMSYNCn repeats every 1.5ms. In E1 mode, TxMSYNCn repeats every 2ms. If TxMSYNCn is configured as an input, TxMSYNCn must pulse "High" for one period of TxSERCLK during the first bit of an outbound DS1/E1 multi-frame. It is imperative that the TxMSYNC input signal be synchronized with the TxSERCLK input signal. If TxMSYNCn is configured as an output, the transmit section of the T1/E1 framer will output and pulse TxMSYNC "High" for one period of TxSERCLK during the first bit of an outbound DS1/E1 frame. DS1/E1 High-Speed Backplane Modes* - (TxINCLKn as INPUT ONLY) In this mode, TxINCLK0 must be used as the high-speed input clock pin for the backplane interface to latch in high-speed or multiplexed data on the TxSERn pin. The frequency of TxINCLK0 is presented in the table below. OPERATION MODE FREQUENCY OF TXINCLK0(MHZ) 2.048MVIP non-multiplexed 2.048 4.096MHz non-multiplexed 4.096 8.192MHz non-multiplexed 8.192 12.352MHz Bit-multiplexed (DS1 ONLY) 12.352 16.384MHz Bit-multiplexed 16.384 16.384 HMVIP Byte-multiplexed 16.384 16.384 H.100 Byte-multiplexed 16.384 NOTES: 1. *High-speed backplane modes include (For T1/E1) 2.048MVIP, 4.096MHz, 8.192MHz, 16.384MHz HMVIP, H.100, Bit-multiplexed modes, and (For T1 only) 12.352MHz Bit-multiplexed mode. 2. In DS1 high-speed modes, the DS-0 data is mapped into an E1 frame by ignoring every fourth time slot (don’t care). 3. These 8 pins are internally pulled “Low” for each channel. 10 XRT86VL32 DUAL T1/E1/J1 FRAMER/LIU COMBO - HARDWARE DESCRIPTION REV. V1.2.1 TRANSMIT SYSTEM SIDE INTERFACE SIGNAL NAME BALL# TYPE OUTPUT DRIVE(MA) TxCHCLK0 TxCHCLK2 A13 N17 O 8 DESCRIPTION Transmit Channel Clock Output Signal (TxCHCLKn): The exact function of this pin depends on whether or not the transmit framer enables the transmit fractional/signaling interface to input fractional data, as described below. If transmit fractional/signaling interface is disabled: This pin indicates the boundary of each time slot of an outbound DS1/E1 frame. In T1 mode, each of these output pins is a 192kHz clock which pulses "High" during the LSB of each 24 time slots. In E1 mode, each of these output pins is a 256kHz clock which pulses "High" during the LSB of each 32 time slots. The Terminal Equipment can use this clock signal to sample the TxCHN0 through TxCHN4 time slot identifier pins to determine which time slot is being processed. If transmit fractional/signaling interface is enabled: TxCHCLKn is the fractional interface clock which either outputs a clock signal for the time slot that has been configured to input fractional data, or outputs an enable signal for the fractional time slot so that fractional data can be clocked into the device using the TxSERCLK pin. NOTE: 11 Transmit fractional interface can be enabled by programming to bit 4 - TxFr1544/TxFr2048 bit from register 0xn120 to ‘1’. XRT86VL32 DUAL T1/E1/J1 FRAMER/LIU COMBO - HARDWARE DESCRIPTION REV. V1.2.1 TRANSMIT SYSTEM SIDE INTERFACE SIGNAL NAME BALL# TYPE OUTPUT DRIVE(MA) TxCHN0_0/ TxSIG0 TxCHN2_0/ TxSIG2 B12 I/O 8 M18 DESCRIPTION Transmit Time Slot Octet Identifier Output 0 (TxCHNn_0) / Transmit Serial Signaling Input (TxSIGn): The exact function of these pins depends on whether or not the transmit framer enables the transmit fractional/signaling interface, as described below: If transmit fractional/signaling interface is disabled TxCHNn_0: These output pins (TxCHNn_4 through TxCHNn_0) reflect the five-bit binary value of the current time slot being processed by the transmit serial interface. Terminal Equipment can use the TxCHCLK to sample the five output pins of each channel in order to identify the time slot being processed. This pin indicates the Least Significant Bit (LSB) of the time slot channel being processed. If transmit fractional/signaling interface is enabled - TxSIGn: These pins can be used to input robbed-bit signaling data to be inserted within an outbound DS1 frame or to input Channel Associated Signaling (CAS) data within an outbound E1 frame, as described below. T1 Mode: Signaling data (A,B,C,D) of each channel must be provided on bit 4,5,6,7 of each time slot on the TxSIG pin if 16-code signaling is used. If 4-code signaling is selected, signaling data (A,B) of each channel must be provided on bit 4, 5 of each time slot on the TxSIG pin. If 2-code signaling is selected, signaling data (A) of each channel must be provided on bit 4 of each time slot on the TxSIG pin. E1 Mode: Signaling data in E1 mode can be provided on the TxSIGn pins on a time-slot-basis as in T1 mode, or it can be provided on time slot 16 only via the TxSIGn input pins. In the latter case, signaling data (A,B,C,D) of channel 1 and channel 17 must be inserted on the TxSIGn pin during time slot 16 of frame 1, signaling data (A,B,C,D) of channel 2 and channel 18 must be inserted on the TxSIGn pin during time slot 16 of frame 2...etc. The CAS multiframe Alignments bits (0000 bits) and the extra bits/ alarm bit (xyxx) must be inserted on the TxSIGn pin during time slot 16 of frame 0. NOTE: Transmit fractional interface can be enabled by programming to bit 4 - TxFr1544/TxFr2048 bit from register 0xn120 to ‘1’. NOTE: These 8 pins are internally pulled “Low” for each channel. 12 XRT86VL32 DUAL T1/E1/J1 FRAMER/LIU COMBO - HARDWARE DESCRIPTION REV. V1.2.1 TRANSMIT SYSTEM SIDE INTERFACE SIGNAL NAME BALL# TYPE OUTPUT DRIVE(MA) TxCHN0_1/ TxFrTD0 TxCHN2_1/ TxFrTD2 D12 I/O 8 M17 DESCRIPTION Transmit Time Slot Octet Identifier Output 1 (TxCHNn_1) / Transmit Serial Fractional Input (TxFrTDn): The exact function of these pins depends on whether or not the transmit framer enables the transmit fractional/signaling interface, as described below: If transmit fractional/signaling interface is disabled TxCHNn_1 These output signals (TxCHNn_4 through TxCHNn_0) reflect the five-bit binary value of the current time slot being processed by the transmit serial interface. Terminal Equipment can use the TxCHCLK to sample the five output pins of each channel in order to identify the time slot being processed. This pin indicates Bit 1 of the time slot channel being processed. If transmit fractional/signaling interface is enabled - TxFrTDn These pins are used as the fractional data input pins to input fractional DS1/E1 payload data which will be inserted within an outbound DS1/E1 frame. In this mode, terminal equipment can use either TxCHCLK or TxSERCLK to clock in fractional DS1/E1 payload data depending on the framer configuration. NOTES: TxCHN0_2/ Tx32MHz0 TxCHN2_2/ Tx32MHz2 B13 T16 O 8 1. Transmit fractional/Signaling interface can be enabled by programming to bit 4 - TxFr1544/TxFr2048 bit from register 0xn120 to ‘1’. 2. These 8 pins are internally pulled “Low” for each channel. Transmit Time Slot Octet Identifier Output 2 (TxCHNn_2) / Transmit 32.678MHz Clock Output (Tx32MHZ): The exact function of these pins depends on whether or not the transmit framer enables the transmit fractional/signaling interface, as described below: If transmit fractional/signaling interface is disabled TxCHNn_2 These output signals (TxCHNn_4 through TxCHNn_0) reflect the five-bit binary value of the current time slot being processed by the transmit serial interface. Terminal Equipment can use the TxCHCLK to sample the five output pins of each channel in order to identify the time slot being processed. This pin indicates Bit 2 of the time slot channel being processed. If transmit fractional/signaling interface is enabled - Tx32MHz These pins are used to output a 32.678MHz clock reference which is derived from the MCLKIN input pin. NOTE: 13 Transmit fractional interface can be enabled by programming to bit 4 - TxFr1544/TxFr2048 bit from register 0xn120 to ‘1’. XRT86VL32 DUAL T1/E1/J1 FRAMER/LIU COMBO - HARDWARE DESCRIPTION REV. V1.2.1 TRANSMIT SYSTEM SIDE INTERFACE SIGNAL NAME BALL# TYPE OUTPUT DRIVE(MA) TxCHN0_3/ TxOHSYNC0 TxCHN2_3/ TxOHSYNC2 A14 O 8 N16 O DESCRIPTION Transmit Time Slot Octet Identifier Output 3 (TxCHNn_3) / Transmit Overhead Synchronization Pulse (TxOHSYNCn): The exact function of these pins depends on whether or not the transmit framer enables the transmit fractional/signaling interface, as described below: If transmit fractional/signaling interface is disabled TxCHNn_3 These output signals (TxCHNn_4 through TxCHNn_0) reflect the five-bit binary value of the current time slot being processed by the transmit serial interface. Terminal Equipment can use the TxCHCLK to sample the five output pins of each channel in order to identify the time slot being processed. This pin indicates Bit 3 of the time slot channel being processed. If transmit fractional/signaling interface is enabled TxOHSYNCn These pins are used to output an Overhead Synchronization Pulse which indicates the first bit of each multi-frame. NOTE: TxCHN0_4 TxCHN2_4 C14 N15 O 8 Transmit fractional interface can be enabled by programming to bit 4 - TxFr1544/TxFr2048 bit from register 0xn120 to ‘1’. Transmit Time Slot Octet Identifier Output-Bit 4 (TxCHNn_4): These output signals (TxCHNn_4 through TxCHNn_0) reflect the five-bit binary value of the current time slot being processed by the transmit serial interface. Terminal Equipment can use the TxCHCLK to sample the five output pins of each channel in order to identify the time slot being processed. This pin indicates the Most Significant Bit (MSB) of the time slot channel being processed. 14 XRT86VL32 DUAL T1/E1/J1 FRAMER/LIU COMBO - HARDWARE DESCRIPTION REV. V1.2.1 TRANSMIT OVERHEAD INTERFACE SIGNAL NAME BALL # TYPE OUTPUT DRIVE(MA) TxOH0 TxOH2 C12 P15 I - DESCRIPTION Transmit Overhead Input (TxOHn): The exact function of these pins depends on the mode of operation selected, as described below. DS1 Mode These pins operate as the source of Datalink bits which will be inserted into the Datalink bits within an outbound DS1 frame if the framer is configured accordingly. Datalink Equipment can provide data to this input pin using the TxOHCLKn clock at either 2kHz or 4kHz depending on the transmit datalink bandwidth selected. NOTE: This input pin will be disabled if the framer is using the Transmit HDLC Controller, or the TxSER input as the source for the Data Link Bits. E1 Mode These pins operate as the source of Datalink bits or Signaling bits depending on the framer configuration, as described below. Sourcing Datalink bits from TxOHn: The E1 transmit framer will output a clock edge on TxOHCLKn for each Sa bit that has been configured to carry datalink information. Terminal equipment can then use TxOHCLKn to provide datalink bits on TxOHn to be inserted into the Sa bits within an outbound E1 frame. Sourcing Signaling bits from TxOHn: Users must provide signaling data on TxOHn pins on time slot 16 only. Signaling data (A,B,C,D) of channel 1 and channel 17 must be inserted on the TxOHn pin during time slot 16 of frame 1, signaling data (A,B,C,D) of channel 2 and channel 18 must be inserted on the TxOHn pin during time slot 16 of frame 2...etc. The CAS multiframe Alignments bits (0000 bits) and the extra bits/alarm bit (xyxx) must be inserted on the TxOHn pin during time slot 16 of frame 0. NOTE: 15 These 8 pins are internally pulled “Low” for each channel. XRT86VL32 DUAL T1/E1/J1 FRAMER/LIU COMBO - HARDWARE DESCRIPTION REV. V1.2.1 TRANSMIT OVERHEAD INTERFACE SIGNAL NAME BALL # TYPE OUTPUT DRIVE(MA) TxOHCLK0 TxOHCLK2 A11 N18 O 8 DESCRIPTION Transmit OH Serial Clock Output Signal(TxOHCLKn) This pin functions as an overhead output clock signal for the transmit overhead interface, and its function is explained below. DS1 Mode If the TxOH pins have been configured to be the source for Datalink bits, the DS1 transmit framer will provide a clock edge for each Data Link Bit. In DS1 ESF mode, the TxOHCLK can either be a 2kHz or 4kHz output signal depending on the selection of Data Link Bandwidth (Register 0xn10A). Data Link Equipment can provide data to the TxOHn pin on the rising edge of TxOHCLK. The framer latches the data on the falling edge of this clock signal. E1 Mode If the TxOH pins have been configured to be the source for Data Link bits, the E1 transmit framer will provide a clock edge for each National Bit (Sa bits) that has been configured to carry data link information. (Register 0xn10A) 16 XRT86VL32 DUAL T1/E1/J1 FRAMER/LIU COMBO - HARDWARE DESCRIPTION REV. V1.2.1 RECEIVE OVERHEAD INTERFACE SIGNAL NAME BALL # TYPE OUTPUT DRIVE(MA) RxOH0 RxOH2 C11 K15 O 8 Receive Overhead Output (RxOHn): These pins function as the Receive Overhead output, or Receive Signaling Output depending on the receive framer configuration, as described below. DS1 Mode If the RxOH pins have been configured as the destination for the Data Link bits within an inbound DS1 frame, datalink bits will be output to the RxOHn pins at either 2kHz or 4kHz depending on the Receive datalink bandwidth selected. (Register 0xn10C). If configured appropriately, signaling information in the receive signaling array registers (Registers 0xn500-0xn51F) can also be output to the RxOHn output pins. E1 Mode These output pins will always output the contents of the National Bits (Sa4 through Sa8) if these Sa bits have been configured to carry Data Link information (Register 0xn10C). The Receive Overhead Output Interface will provide a clock edge on RxOHCLKn for each Sa bit carrying Data Link information. If configured appropriately, signaling information in the receive signaling array registers (Registers 0xn500-0xn51F) can also be output to the RxOHn output pins. RxOHCLK0 RxOHCLK2 A9 K17 O 8 Receive Overhead Clock Output (RxOHCLKn): This pin functions as an overhead output clock signal for the receive overhead interface, and its function is explained below. DS1 Mode If the RxOH pins have been configured to be the destination for Datalink bits, the DS1 transmit framer will output a clock edge for each Data Link Bit. In DS1 ESF mode, the RxOHCLK can either be a 2kHz or 4kHz output signal depending on the selection of Data Link Bandwidth (Register 0xn10C). Data Link Equipment can clock out datalink bits on the RxOHn pin using this clock signal. E1 Mode The E1 receive framer provides a clock edge for each National Bit (Sa bits) that is configured to carry data link information. Data Link Equipment can clock out datalink bits on the RxOHn pin using this clock signal. DESCRIPTION 17 XRT86VL32 DUAL T1/E1/J1 FRAMER/LIU COMBO - HARDWARE DESCRIPTION REV. V1.2.1 RECEIVE SYSTEM SIDE INTERFACE SIGNAL NAME BALL # TYPE OUTPUT DRIVE (MA) RxSYNC0/ RxNEG0 RxSYNC2/ RxNEG2 D8 I/O 12 F18 DESCRIPTION Receive Single Frame Sync Pulse (RxSYNCn): The exact function of these pins depends on the mode of operation selected, as described below. DS1/E1 Base Rate Mode (1.544MHz/2.048MHz) - RxSYNCn: These RxSYNCn pins are used to indicate the single frame boundary within an inbound T1/E1 frame. In both DS1 or E1 mode, the single frame boundary repeats every 125 microseconds (8kHz). In DS1/E1 base rate, RxSYNCn can be configured as either input or output depending on the slip buffer configuration as described below. When RxSYNCn is configured as an Input: Users must provide a signal which must pulse "High" for one period of RxSERCLK and repeats every 125µS. The receive serial Interface will output the first bit of an inbound DS1/E1 frame during the provided RxSYNC pulse. NOTE: It is imperative that the RxSYNC input signal be synchronized with the RxSERCLK input signal. When RxSYNCn is configured as an Output: The receive T1/E1 framer will output a signal which pulses "High" for one period of RxSERCLK during the first bit of an inbound DS1/E1 frame. DS1/E1 High-Speed Backplane Modes* - RxSYNCn as INPUT ONLY: In this mode, RxSYNCn must be an input regardless of the slip buffer configuration. In 2.048MVIP/4.096/8.192MHz high-speed modes, RxSYNCn pins must be pulsed ’High’ for one period of RxSERCLK during the first bit of the inbound T1/E1 frame. In HMVIP mode, RxSYNC0 must be pulsed ’High’ for 4 clock cycles of the RxSERCLK signal in the position of the first two and the last two bits of a multiplexed frame. In H.100 mode, RxSYNC0 must be pulsed ’High’ for 2 clock cycles of the RxSERCLK signal in the position of the first and the last bit of a multiplexed frame. DS1 or E1 Framer Bypass Mode - RxNEGn In this mode, RxSYNCn is used as the Receive negative digital output pin (RxNEG) from the LIU. NOTE: *High-speed backplane modes include (For T1/E1) 2.048MVIP, 4.096MHz, 8.192MHz, 16.384MHz HMVIP, H.100, Bit-multiplexed modes, and (For T1 only) 12.352MHz Bit-multiplexed mode. NOTE: In DS1 high-speed modes, the DS-0 data is mapped into an E1 frame by ignoring every fourth time slot (don’t care). NOTE: 18 These 8 pins are internally pulled “Low” for each channel. XRT86VL32 DUAL T1/E1/J1 FRAMER/LIU COMBO - HARDWARE DESCRIPTION REV. V1.2.1 RECEIVE SYSTEM SIDE INTERFACE SIGNAL NAME BALL # TYPE OUTPUT DRIVE (MA) RxCRCSYNC0 RxCRCSYNC2 C8 J17 O 12 DESCRIPTION Receive Multiframe Sync Pulse (RxCRCSYNCn): The RxCRCSYNCn pins are used to indicate the receive multiframe boundary. These pins pulse "High" for one period of RxSERCLK when the first bit of an inbound DS1/E1 Multi-frame is being output on the RxCRCSYNCn pin. • In DS1 ESF mode, RxCRCSYNCn repeats every 3ms • In DS1 SF mode, RxCRCSYNCn repeats every 1.5ms • In E1 mode, RxCRCSYNCn repeats every 2ms. RxCASYNC0 RxCASYNC2 D10 H15 O 12 Receive CAS Multiframe Sync Pulse (RxCASYNCn): - E1 Mode Only The RxCASYNCn pins are used to indicate the E1 CAS Multifframe boundary. These pins pulse "High" for one period of RxSERCLK when the first bit of an E1 CAS Multi-frame is being output on the RxCASYNCn pin. 19 XRT86VL32 DUAL T1/E1/J1 FRAMER/LIU COMBO - HARDWARE DESCRIPTION REV. V1.2.1 RECEIVE SYSTEM SIDE INTERFACE SIGNAL NAME BALL # TYPE OUTPUT DRIVE (MA) RxSERCLK0/ RxLINECLK0 RxSERCLK2/ RxLINECLK2 A7 I/O 12 D15 DESCRIPTION Receive Serial Clock Signal (RxSERCLKn) / Receive Line Clock (RxLINECLKn): The exact function of these pins depends on the mode of operation selected, as described below. In Base-Rate Mode (1.544MHz/2.048MHz) - RxSERCLKn: These pins are used as the receive serial clock on the system side interface which can be configured as either input or output. The receive serial interface outputs data on RxSERn on the rising edge of RxSERCLKn. When RxSERCLKn is configured as Input: These pins will be inputs if the slip buffer on the Receive path is enabled. System side equipment must provide a 1.544MHz clock rate to this input pin for T1 mode of operation, and 2.048MHz clock rate in E1 mode. When RxSERCLKn is configured as Output: These pins will be outputs if slip buffer is bypassed. The receive framer will output a 1.544MHz clock rate in T1 mode of operation, and a 2.048MHz clock rate in E1 mode. DS1/E1 High-Speed Backplane Modes* - (RxSERCLK as INPUT ONLY) In this mode, this pin must be used as the high-speed input clock for the backplane interface to output high-speed or multiplexed data on the RxSERn pin. The frequency of RxSERCLK is presented in the table below. OPERATION MODE FREQUENCY OF RXSERCLK(MHZ) 2.048MVIP non-multiplexed 2.048 4.096MHz non-multiplexed 4.096 8.192MHz non-multiplexed 8.192 12.352MHz Bit-multiplexed (DS1 ONLY) 12.352 16.384MHz Bit-multiplexed 16.384 16.384 HMVIP Byte-multiplexed 16.384 16.384 H.100 Byte-multiplexed 16.384 NOTES: 20 1. *High-speed backplane modes include (For T1/E1) 2.048MVIP, 4.096MHz, 8.192MHz, 16.384MHz HMVIP, H.100, Bit-multiplexed modes, and (For T1 only) 12.352MHz Bit-multiplexed mode. 2. For DS1 high-speed modes, the DS-0 data is mapped into an E1 frame by ignoring every fourth time slot (don’t care). XRT86VL32 DUAL T1/E1/J1 FRAMER/LIU COMBO - HARDWARE DESCRIPTION REV. V1.2.1 RECEIVE SYSTEM SIDE INTERFACE SIGNAL NAME BALL # TYPE OUTPUT DRIVE (MA) RxSERCLK0/ RxLINECLK0 RxSERCLK2/ RxLINECLK2 A7 I/O 12 D15 DESCRIPTION (Continued) DS1 or E1 Framer Bypass Mode - RxLINECLKn In this mode, RxSERCLKn is used as the Receive Line Clock output pin (RxLineClk) from the LIU. NOTE: RxSER0/ RxPOS0 RxSER2/ RxPOS2 D6 J18 O 12 These 8 pins are internally pulled “High” for each channel. Receive Serial Data Output (RxSERn): The exact function of these pins depends on the mode of operation selected, as described below. DS1/E1 Mode - RxSERn These pins function as the receive serial data output on the system side interface, which updates on the rising edge of the RxSERCLKn pin. All the framing alignment bits, facility data link bits, CRC bits, and signaling information will also be extracted to this output pin. DS1 or E1 High-Speed Multiplexed Mode* - RxSERn In this mode, these pins are used as the high-speed multiplexed data output pin on the system side. High-speed multiplexed data of channels 0-3 will output on RxSER0 in a byte or bit-interleaved way. The framer outputs the multiplexed data on RxSER0 using the high-speed input clock (RxSERCLKn). DS1 or E1 Framer Bypass Mode In this mode, RxSERn is used as the positive digital output pin (RxPOSn) from the LIU. NOTE: *High-speed multiplexed modes include (For T1/E1) 16.384MHz HMVIP, H.100, Bit-multiplexed modes, and (For T1 only) 12.352MHz Bit-multiplexed mode. NOTE: In DS1 high-speed modes, the DS-0 data is mapped into an E1 frame by ignoring every fourth time slot (don’t care). 21 XRT86VL32 DUAL T1/E1/J1 FRAMER/LIU COMBO - HARDWARE DESCRIPTION REV. V1.2.1 RECEIVE SYSTEM SIDE INTERFACE SIGNAL NAME BALL # TYPE OUTPUT DRIVE (MA) RxCHN0_0/ RxSig0 RxCHN2_0/ RxSig2 D7 O 8 H16 DESCRIPTION Receive Time Slot Octet Identifier Output (RxCHNn_0) / Receive Serial Signaling Output (RxSIGn): The exact function of these pins depends on whether or not the receive framer enables the receive fractional/signaling interface, as described below: If receive fractional/signaling interface is disabled RxCHNn_0: These output pins (RxCHNn_4 through RxCHNn_0) reflect the five-bit binary value of the current time slot being output by the receive serial interface. System equipment can use the RxCHCLKn to sample the five output pins of each channel to identify the time slot being output on these pins. RxCHNn_0 indicates the Least Significant Bit (LSB) of the time slot channel being output. If receive fractional/signaling interface is enabled RxSIGn: These pins can be used to output robbed-bit signaling data within an inbound DS1 frame or to output Channel Associated Signaling (CAS) data within an inbound E1 frame, as described below. T1 Mode: Signaling data (A,B,C,D) of each channel will be output on bit 4,5,6,7 of each time slot on the RxSIG pin if 16-code signaling is used. If 4-code signaling is selected, signaling data (A,B) of each channel will be output on bit 4, 5 of each time slot on the RxSIG pin. If 2-code signaling is selected, signaling data (A) of each channel will be output on bit 4 of each time slot on the RxSIG pin. E1 Mode: Signaling data in E1 mode will be output on the RxSIGn pins on a time-slot-basis as in T1 mode, or it can be output on time slot 16 only via the RxSIGn output pins. In the latter case, signaling data (A,B,C,D) of channel 1 and channel 17 will be output on the RxSIGn pin during time slot 16 of frame 1, signaling data (A,B,C,D) of channel 2 and channel 18 will be output on the RxSIGn pin during time slot 16 of frame 2...etc. The CAS multiframe Alignments bits (0000 bits) and the extra bits/alarm bit (xyxx) will be output on the RxSIGn pin during time slot 16 of frame 0. NOTE: Receive Fractional/signaling interface can be enabled by programming to bit 4 - RxFr1544/RxFr2048 bit from register 0xn122 to ‘1’. 22 XRT86VL32 DUAL T1/E1/J1 FRAMER/LIU COMBO - HARDWARE DESCRIPTION REV. V1.2.1 RECEIVE SYSTEM SIDE INTERFACE SIGNAL NAME BALL # TYPE OUTPUT DRIVE (MA) RxCHN0_1/ RxFrTD0 RxCHN2_1/ RxFrTD2 C9 O 8 G15 DESCRIPTION Receive Time Slot Octet Identifier Output Bit 1 (RxCHNn_1) / Receive Serial Fractional Output (RxFrTDn): The exact function of these pins depends on whether or not the receive framer enables the receive fractional/signaling interface, as described below: If receive fractional/signaling interface is disabled RxCHNn_1: These output pins (RxCHNn_4 through RxCHNn_0) reflect the five-bit binary value of the current time slot being output by the receive serial interface. System equipment can use the RxCHCLKn to sample the five output pins of each channel to identify the time slot being output on these pins. RxCHNn_1 indicates Bit 1 of the time slot channel being output. If receive fractional/signaling interface is enabled RxFrTDn: These pins are used as the fractional data output pins to output fractional DS1/E1 payload data within an inbound DS1/E1 frame. In this mode, system equipment can use either RxCHCLK or RxSERCLK to clock out fractional DS1/E1 payload data depending on the framer configuration. NOTE: Receive Fractional/Signaling interface can be enabled by programming to bit 4 - RxFr1544/RxFr2048 bit from register 0xn122 to ‘1’. RxCHN0_2/ RxCHN0 RxCHN2_2/ RxCHN2 B9 K18 O 8 Receive Time Slot Octet Identifier Output-Bit 2 (RxCHNn_2) / Receive Time Slot Identifier Serial Output (RxCHNn): The exact function of these pins depends on whether or not the receive framer enables the receive fractional/signaling interface, as described below: If receive fractional/signaling interface is disabled RxCHNn_2: These output pins (RxCHNn_4 through RxCHNn_0) reflect the five-bit binary value of the current time slot being output by the receive serial interface. System equipment can use the RxCHCLKn to sample the five output pins of each channel to identify the time slot being output on these pins. RxCHNn_2 indicates Bit 2 of the time slot channel being output. If receive fractional/signaling interface is enabled RxCHNn These pins serially output the five-bit binary value of the time slot being output by the receive serial interface. NOTE: Receive Fractional/Signaling interface can be enabled by programming to bit 4 - RxFr1544/RxFr2048 bit from register 0xn122 to ‘1’. 23 XRT86VL32 DUAL T1/E1/J1 FRAMER/LIU COMBO - HARDWARE DESCRIPTION REV. V1.2.1 RECEIVE SYSTEM SIDE INTERFACE SIGNAL NAME BALL # TYPE OUTPUT DRIVE (MA) RxCHN0_3/ Rx8KHZ0 RxCHN2_3/ Rx8KHZ2 C10 O 8 L16 DESCRIPTION Receive Time Slot Octet Identifier Output-Bit 3 (RxCHNn_3) / Receive 8KHz Clock Output (Rx8KHZn): The exact function of these pins depends on whether or not the receive framer enables the receive fractional/signaling interface, as described below: If receive fractional/signaling interface is disabled RxCHNn_3: These output pins (RxCHNn_4 through RxCHNn_0) reflect the five-bit binary value of the current time slot being output by the receive serial interface. System equipment can use the RxCHCLKn to sample the five output pins of each channel to identify the time slot being output on these pins. RxCHNn_3 indicates Bit 3 of the time slot channel being output. If receive fractional/signaling interface is enabled Rx8KHZn: These pins output a reference 8KHz clock signal derived from the MCLKIN input. NOTE: Receive Fractional/Signaling interface can be enabled by programming to bit 4 - RxFr1544/RxFr2048 bit from register 0xn122 to ‘1’. RxCHN0_4/ RxSCLK0 RxCHN2_4/ RxSCLK2 B10 K16 O 8 Receive Time Slot Octet Identifier Output-Bit 4 (RxCHNn_4) / Receive Recovered Line Clock Output (RxSCLKn): The exact function of these pins depends on whether or not the receive framer enables the receive fractional/signaling interface, as described below: If receive fractional/signaling interface is disabled RxCHNn_4: These output pins (RxCHNn_4 through RxCHNn_0) reflect the five-bit binary value of the current time slot being output by the receive serial interface. System equipment can use the RxCHCLKn to sample the five output pins of each channel to identify the time slot being output on these pins. RxCHNn_4 indicates the Most Significant Bit (MSB) of the time slot channel being output. If receive fractional/signaling interface is enabled - Receive Recovered Line Clock Output (RxSCLKn): These pins output the recovered T1/E1 line clock (1.544MHz in T1 mode and 2.048MHz in E1 mode) for each channel. NOTE: Receive Fractional/Signaling interface can be enabled by programming to bit 4 - RxFr1544/RxFr2048 bit from register 0xn122 to ‘1’. 24 XRT86VL32 DUAL T1/E1/J1 FRAMER/LIU COMBO - HARDWARE DESCRIPTION REV. V1.2.1 RECEIVE SYSTEM SIDE INTERFACE SIGNAL NAME BALL # TYPE OUTPUT DRIVE (MA) RxCHCLK0 RxCHCLK2 A8 H17 O 8 DESCRIPTION Receive Channel Clock Output (RxCHCLKn): The exact function of this pin depends on whether or not the receive framer enables the receive fractional/signaling interface to output fractional data, as described below. If receive fractional/signaling interface is disabled: This pin indicates the boundary of each time slot of an inbound DS1/E1 frame. In T1 mode, each of these output pins is a 192kHz clock which pulses "High" during the LSB of each 24 time slots. In E1 mode, each of these output pins is a 256kHz clock which pulses "High" during the LSB of each 32 time slots. System Equipment can use this clock signal to sample the RxCHN0 through RxCHN4 time slot identifier pins to determine which time slot is being output. If receive fractional/signaling interface is enabled: RxCHCLKn is the fractional interface clock which either outputs a clock signal for the time slot that has been configured to output fractional data, or outputs an enable signal for the fractional time slot so that fractional data can be clocked out of the device using the RxSERCLK pin. NOTE: 25 Receive fractional interface can be enabled by programming to bit 4 - RxFr1544/RxFr2048 bit from register 0xn122 to ‘1’. XRT86VL32 DUAL T1/E1/J1 FRAMER/LIU COMBO - HARDWARE DESCRIPTION REV. V1.2.1 RECEIVE LINE INTERFACE SIGNAL NAME BALL # TYPE OUTPUT DRIVE (MA) RTIP0 RTIP2 E1 J1 I - Receive Positive Analog Input (RTIPn): RTIP is the positive differential input from the line interface. This input pin, along with the RRING input pin, functions as the “Receive DS1/E1 Line Signal” input for the XRT86VL32 device. The user is expected to connect this signal and the RRING input signal to a 1:1 transformer for proper operation. The center tap of the receive transformer should have a bypass capacitor of 0.1µF to ground (Chip Side) to improve long haul application receive capabilities. RRING0 RRING2 F1 K1 I - Receive Negative Analog Input (RRINGn): RRING is the negative differential input from the line interface. This input pin, along with the RTIP input pin, functions as the “Receive DS1/E1 Line Signal” input for the XRT86VL32 device. The user is expected to connect this signal and the RTIP input signal to a 1:1 transformer for proper operation. The center tap of the receive transformer should have a bypass capacitor of 0.1µF to ground (Chip Side) to improve long haul application receive capabilities. RxLOS_0 RxLOS_1 B7 G16 O 4 Receive Loss of Signal Output Indicator (RLOSn): The XRT86VL32 device will assert this output pin (i.e., toggle it “high”) anytime (and for the duration that) the Receive DS1/E1 Framer or LIU block declares the LOS defect condition. Conversely, the XRT86VL32 device will tri-state this output pin anytime (and for the duration that) the Receive DS1/E1 Framer or LIU block is NOT declaring the LOS defect condition. DESCRIPTION NOTES:. 1. This output pin will toggle "high" (to denote that LOS is being declared) whenever either the Receive DS1/E1 Framer or the Receive DS1/E1 LIU block (associated with Channel N) declares the LOS defect condition. In other words, the state of this output pin is a logic OR of the Framer LOS and the LIU LOS condition. 2. Since the XRT86VL32 device tri-states this output pin (anytime the channel is NOT declaring the LOS defect condition). Therefore, the user MUST connect a "pulldown" resistor (ranging from 1K to 10K) to each RxLOS output pin, in order to pull this output pin to the logic "LOW" condition, whenever the Channel is NOT declaring the LOS defect condition. 26 XRT86VL32 DUAL T1/E1/J1 FRAMER/LIU COMBO - HARDWARE DESCRIPTION REV. V1.2.1 RECEIVE LINE INTERFACE SIGNAL NAME BALL # TYPE OUTPUT DRIVE (MA) RxTSEL N3 I - DESCRIPTION Receive Termination Control (RxTSEL): Upon power up, the receivers are in "High" impedance. Switching to internal termination can be selected through the microprocessor interface by programming the appropriate channel register. However, to switch control to the hardware pin, RxTCNTL must be programmed to "1" in the appropriate global register (0x0FE2). Once control has been granted to the hardware pin, it must be pulled "High" to switch to internal termination. NOTE: Internally pulled "Low" with a 50kΩ resistor. RxTSEL (pin) Rx Termination 0 External 1 Internal Note: RxTCNTL (bit) must be set to "1" 27 XRT86VL32 DUAL T1/E1/J1 FRAMER/LIU COMBO - HARDWARE DESCRIPTION REV. V1.2.1 TRANSMIT LINE INTERFACE SIGNAL NAME BALL # TYPE DESCRIPTION TTIP0 TTIP2 E4 J4 O Transmit Positive Analog Output (TTIPn): TTIP is the positive differential output to the line interface. This output pin, along with the corresponding TRING output pin, function as the Transmit DS1/ E1 output signal drivers for the XRT86VL32 device. The user is expected to connect this signal and the corresponding TRING output signal to a 1:2 step up transformer for proper operation. This output pin will be tri-stated whenever the user sets the “TxON” input pin or register bit (0xnF02, bit 3) to “0”. NOTE: This pin should have a series line capacitor of 0.68µF for DC blocking purposes. TRING0 TRING2 F4 K4 O Transmit Negative Analog Output (TRINGn): TRING is the negative differential output to the line interface. This output pin, along with the corresponding TTIP output pin, function as the Transmit DS1/ E1 output signal drivers for the XRT86VL32 device. The user is expected to connect this signal and the corresponding TRING output signal to a 1:2 step up transformer for proper operation. NOTE: This output pin will be tri-stated whenever the user sets the “TxON” input pin or register bit (0xnF02, bit 3) to “0”. TxON N1 I Transmitter On This input pin permits the user to either enable or disable the Transmit Output Driver within the Transmit DS1/E1 LIU Block. If the TxON pin is pulled “Low”, all 8 Channels are tri-stated. When this pin is pulled ‘High’, turning on or off the transmitters will be determined by the appropriate channel registers (address 0x0Fn2, bit 3) LOW = Disables the Transmit Output Driver within the Transmit DS1/E1 LIU Block. In this setting, the TTIP and TRING output pins of all 8 channels will be tri-stated. HIGH = Enables the Transmit Output Driver within the Transmit DS1/E1 LIU Block. In this setting, the corresponding TTIP and TRING output pins will be enabled or disabled by programming the appropriate channel register. (address 0x0Fn2, bit 3) NOTE: Whenever the transmitters are turned off, the TTIP and TRING output pins will be tri-stated. TIMING INTERFACE SIGNAL NAME BALL # TYPE OUTPUT DRIVE (MA) MCLKIN A4 I - Master Clock Input: This pin is used to provide the timing reference for the internal master clock of the device. The frequency of this clock is programmable from 8kHz to 16.384MHz in register 0x0FE9. E1MCLKnOUT A3 O 12 LIU E1 Output Clock Reference This output pin is defaulted to 2.048MHz, but can be programmed to 4.096MHz, 8.192MHz, or 16.384MHz in register 0x0FE4. DESCRIPTION 28 XRT86VL32 DUAL T1/E1/J1 FRAMER/LIU COMBO - HARDWARE DESCRIPTION REV. V1.2.1 TIMING INTERFACE SIGNAL NAME BALL # TYPE OUTPUT DRIVE (MA) T1MCLKnOUT B4 O 12 LIU T1 Output Clock Reference This output pin is defaulted to 1.544MHz, but can be programmed to output 3.088MHz, 6.176MHz, or 12.352MHz in register 0x0FE4. E1OSCCLK P2 O 8 Framer E1 Output Clock Reference This output pin is defaulted to 2.048MHz, but can be programmed to 65.536MHz in register 0x011E. T1OSCCLK P4 O 8 Framer T1 Output Clock Reference This output pin is defaulted to 1.544MHz, but can be programmed to output 49.408MHz in register 0x011E. 8KSYNC R2 O 8 8kHz Clock Output Reference This pin is an output reference of 8kHz based on the MCLKIN input. Therefore, the duty cycle of this output is determined by the time period of the input clock reference. 8KEXTOSC N4 I - External Oscillator Select For normal operation, this pin should not be used, or pulled “Low”. This pin is internally pulled “Low” with a 50kΩ resistor. ANALOG E5 O DESCRIPTION Factory Test Mode Pin NOTE: For Internal Use Only LOP N2 I - Loss of Power for E1 Only This is a Loss of Power pin in the E1 application only. Upon detecting LOP in E1 mode, the device will automatically transmit the Sa5 and Sa6 bit to a different pattern, so that the Receive terminal can detect a power failure in the network. Please see register 0xn131 for the Transmit SA control. 29 XRT86VL32 DUAL T1/E1/J1 FRAMER/LIU COMBO - HARDWARE DESCRIPTION REV. V1.2.1 JTAG INTERFACE The XRT86VL32 device’s JTAG features comply with the IEEE 1149.1 standard. Please refer to the industry specification for additional information on boundary scan operations. SIGNAL NAME BALL # TYPE OUTPUT DRIVE (MA) TCK C7 I - Test clock: Boundary Scan Test clock input: The TCLK signal is the clock for the TAP controller, and it generates the boundary scan data register clocking. The data on TMS and TDI is loaded on the positive edge of TCK. Data is observed at TDO on the falling edge of TCK. TMS C6 I - Test Mode Select: Boundary Scan Test Mode Select input. The TMS signal controls the transitions of the TAP controller in conjunction with the rising edge of the test clock (TCK). DESCRIPTION NOTE: For normal operation this pin MUST be pulled "High". TDI B6 I - Test Data In: Boundary Scan Test data input The TDI signal is the serial test data input. NOTE: This pin is internally pulled ’high’. TDO D5 O 8 Test Data Out: Boundary Scan Test data output The TDO signal is the serial test data output. TRST A6 I - Test Reset Input: The TRST signal (Active Low) asynchronously resets the TAP controller to the Test-Logic-Reset state. NOTE: This pin is internally pulled ’high’ TESTMODE B11 I - Factory Test Mode Pin NOTE: This pin is internally pulled ’low’, and should be pulled ’low’ for normal operation. aTESTMODE B5 I - Factory Test Mode Pin NOTE: This pin is internally pulled ’low’, and should be pulled ’low’ for normal operation. ATP_Ring B2 I - ATP_Ring Test Pin This analog test pin is used for testing the continuity between the TTIP/TRING, RTIP/RRING of each channel and the onboard transformer. ATP_Tip C3 I - ATP_Tip Test Pin This analog test pin is used for testing the continuity between the TTIP/TRING, RTIP/RRING of each channel and the onboard transformer. 30 XRT86VL32 DUAL T1/E1/J1 FRAMER/LIU COMBO - HARDWARE DESCRIPTION REV. V1.2.1 MICROPROCESSOR INTERFACE SIGNAL NAME BALL # TYPE OUTPUT DRIVE (MA) DATA0 DATA1 DATA2 DATA3 DATA4 DATA5 DATA6 DATA7 T4 U3 V8 V9 T10 V10 U11 R11 I/O 8 Bidirectional Microprocessor Data Bus These pins are used to drive and receive data over the bi-directional data bus, whenever the Microprocessor performs READ or WRITE operations with the Microprocessor Interface of the XRT86VL32 device. When DMA interface is enabled, these 8-bit bidirectional data bus is also used by the T1/E1 Framer or the external DMA Controller for storing and retrieving information. REQ0 R1 O 8 DMA Cycle Request Output—DMA Controller 0 (Write): These output pins are used to indicate that DMA transfers (Write) are requested by the T1/E1 Framer. On the transmit side (i.e., To transmit data from external DMA controller to HDLC buffers within the XRT86VL32), DMA transfers are only requested when the transmit buffer status bits indicate that there is space for a complete message or cell. The DMA Write cycle starts by T1/E1 Framer asserting the DMA Request (REQ0) ‘low’, then the external DMA controller should drive the DMA Acknowledge (ACK0) ‘low’ to indicate that it is ready to start the transfer. The external DMA controller should place new data on the Microprocessor data bus each time the Write Signal is Strobed low if the WR is configured as a Write Strobe. If WR is configured as a direction signal, then the external DMA controller would place new data on the Microprocessor data bus each time the Read Signal (RD) is Strobed low. The Framer asserts this output pin (toggles it "Low") when at least one of the Transmit HDLC buffers are empty and can receive one more HDLC message. The Framer negates this output pin (toggles it “High”) when the HDLC buffer can no longer receive another HDLC message. DESCRIPTION 31 XRT86VL32 DUAL T1/E1/J1 FRAMER/LIU COMBO - HARDWARE DESCRIPTION REV. V1.2.1 MICROPROCESSOR INTERFACE SIGNAL NAME BALL # TYPE OUTPUT DRIVE (MA) REQ1 R3 O 8 DMA Cycle Request Output—DMA Controller 1 (Read): These output pins are used to indicate that DMA transfers (Read) are requested by the T1/E1 Framer. On the receive side (i.e., To transmit data from HDLC buffers within the XRT86VL32 to external DMA Controller), DMA transfers are only requested when the receive buffer contains a complete message or cell. The DMA Read cycle starts by T1/E1 Framer asserting the DMA Request (REQ1) ‘low’, then the external DMA controller should drive the DMA Acknowledge (ACK1) ‘low’ to indicate that it is ready to receive the data. The T1/E1 Framer should place new data on the Microprocessor data bus each time the Read Signal is Strobed low if the RD is configured as a Read Strobe. If RD is configured as a direction signal, then the T1/E1 Framer would place new data on the Microprocessor data bus each time the Write Signal (WR) is Strobed low. The Framer asserts this output pin (toggles it "Low") when one of the Receive HDLC buffer contains a complete HDLC message that needs to be read by the µC/µP. The Framer negates this output pin (toggles it “High”) when the Receive HDLC buffers are depleted. INT R8 O 8 Interrupt Request Output: This active-low output signal will be asserted when the XRT86VL32 device is requesting interrupt service from the Microprocessor. This output pin should typically be connected to the “Interrupt Request” input of the Microprocessor. The Framer will assert this active "Low" output (toggles it "Low"), to the local µP, anytime it requires interrupt service. PCLK V1 I - Microprocessor Clock Input: This clock input signal is only used if the Microprocessor Interface has been configured to operate in the Synchronous Modes (e.g., Power PC 403 Mode). If the Microprocessor Interface is configured to operate in this mode, then it will use this clock signal to do the following. DESCRIPTION 1. To sample the CS*, WR*/R/W*, A[14:0], D[7:0], RD*/DS* and DBEN input pins, and 2. To update the state of the D[7:0] and the RDY/DTACK output signals. NOTES: 1. The Microprocessor Interface can work with PCLK frequencies ranging up to 33MHz. 2. This pin is inactive if the user has configured the Microprocessor Interface to operate in either the IntelAsynchronous or the Motorola-Asynchronous Modes. In this case, the user should tie this pin to GND. When DMA interface is enabled, the PCLK input pin is also used by the T1/E1 Framer to latch in or latch out receive or output data respectively. iADDR U1 I - This Pin Must be Tied “Low” for Normal Operation. This pin is internally pulled “High” with a 50kΩ resistor. 32 XRT86VL32 DUAL T1/E1/J1 FRAMER/LIU COMBO - HARDWARE DESCRIPTION REV. V1.2.1 MICROPROCESSOR INTERFACE SIGNAL NAME BALL # TYPE OUTPUT DRIVE (MA) fADDR T1 I - This Pin Must be Tied “High” for Normal Operation. This pin is internally pulled “Low” with a 50kΩ resistor. PTYPE0 PTYPE1 PTYPE2 V2 V4 T8 I - Microprocessor Type Input: These input pins permit the user to specify which type of Microprocessor/Microcontroller to be interfaced to the XRT86VL32 device. The following table presents the three different microprocessor types that the XRT86VL32 supports. NOTE: 33 ° PType2 ° PType1 ° PType0 DESCRIPTION MICROPROCESSOR TYPE 0 0 0 Intel Asynchronous 0 0 1 Motorola Asynchronous 1 0 1 IBM POWER PC 403 These pins are internally pulled “Low” with a 50kΩ resistor. XRT86VL32 DUAL T1/E1/J1 FRAMER/LIU COMBO - HARDWARE DESCRIPTION REV. V1.2.1 MICROPROCESSOR INTERFACE SIGNAL NAME BALL # TYPE OUTPUT DRIVE (MA) RDY T3 O 12 DESCRIPTION Ready/Data Transfer Acknowledge Output: The exact behavior of this pin depends upon the type of Microprocessor/Microcontroller the XRT86VL32 has been configured to operate in, as defined by the PTYPE[2:0] pins. Intel Asynchronous Mode - RDY* - Ready Output Tis output pin will function as the “active-low” READY output. During a READ or WRITE cycle, the Microprocessor Interface block will toggle this output pin to the logic low level, ONLY when the Microprocessor Interface is ready to complete or terminate the current READ or WRITE cycle. Once the Microprocessor has determined that this input pin has toggled to the logic “low” level, then it is now safe for it to move on and execute the next READ or WRITE cycle. If (during a READ or WRITE cycle) the Microprocessor Interface block is holding this output pin at a logic “high” level, then the Microprocessor is expected to extend this READ or WRITE cycle, until it detects this output pin being toggled to the logic low level. Motorola Asynchronous Mode - DTACK* - Data Transfer Acknowledge Output Tis output pin will function as the “active-low” DTACK output. During a READ or WRITE cycle, the Microprocessor Interface block will toggle this output pin to the logic low level, ONLY when the Microprocessor Interface is ready to complete or terminate the current READ or WRITE cycle. Once the Microprocessor has determined that this input pin has toggled to the logic “low” level, then it is now safe for it to move on and execute the next READ or WRITE cycle. If (during a READ or WRITE cycle) the Microprocessor Interface block is holding this output pin at a logic “high” level, then the Microprocessor is expected to extend this READ or WRITE cycle, until it detects this output pin being toggled to the logic low level. Power PC 403 Mode - RDY Ready Output: This output pin will function as the “active-high” READY output. During a READ or WRITE cycle, the Microprocessor Interface block will toggle this output pin to the logic high level, ONLY when the Microprocessor Interface is ready to complete or terminate the current READ or WRITE cycle. Once the Microprocessor has sampled this signal being at the logic “high” level upon the rising edge of PCLK, then it is now safe for it to move on and execute the next READ or WRITE cycle. If (during a READ or WRITE cycle) the Microprocessor Interface block is holding this output pin at a logic “low” level, then the Microprocessor is expected to extend this READ or WRITE cycle, until it samples this output pin being at the logic low level. NOTE: The Microprocessor Interface will update the state of this output pin upon the rising edge of PCLK. 34 XRT86VL32 DUAL T1/E1/J1 FRAMER/LIU COMBO - HARDWARE DESCRIPTION REV. V1.2.1 MICROPROCESSOR INTERFACE SIGNAL NAME BALL # TYPE OUTPUT DRIVE (MA) ADDR0 ADDR1 ADDR2 ADDR3 ADDR4 ADDR5 ADDR6 ADDR7 ADDR8 ADDR9 ADDR10 ADDR11 ADDR12 ADDR13 U5 V5 R5 T6 U6 V6 R6 T7 V7 U9 R7 R9 R10 V11 I - DBEN U4 I DESCRIPTION Microprocessor Interface Address Bus Input These pins permit the Microprocessor to identify on-chip registers and Buffer/Memory locations within the XRT86VL32 device whenever it performs READ and WRITE operations with the XRT86VL32 device. NOTE: - These pins are internally pulled “Low” with a 50kΩ resistor, except ADDR [8:13]. Data Bus Enable Input pin. This active-low input pin permits the user to either enable or tristate the Bi-Directional Data Bus pins (D[7:0]), as described below. • Setting this input pin “low” enables the Bi-directional Data bus. • Setting this input pin “high” tri-states the Bi-directional Data Bus. ALE U8 I - Address Latch Enable Input Address Strobe The exact behavior of this pin depends upon the type of Microprocessor/Microcontroller the XRT86VL32 has been configured to operate in, as defined by the PTYPE[2:0] pins. Intel-Asynchronous Mode - ALE This active-high input pin is used to latch the address (present at the Microprocessor Interface Address Bus pins (A[14:0]) into the XRT86VL32 Microprocessor Interface block and to indicate the start of a READ or WRITE cycle. Pulling this input pin “high” enables the input bus drivers for the Address Bus input pins (A[14:0]). The contents of the Address Bus will be latched into the XRT86VL32 Microprocessor Interface circuitry, upon the falling edge of this input signal. Motorola-Asynchronous (68K) Mode - AS* This active-low input pin is used to latch the data residing on the Address Bus, A[14:0] into the Microprocessor Interface circuitry of the XRT86VL32 device. Pulling this input pin “low” enables the input bus drivers for the Address Bus input pins. The contents of the Address Bus will be latched into the Microprocessor Interface circuitry, upon the rising edge of this signal. Power PC 403 Mode - No Function -Tie to GND: This input pin has no role nor function and should be tied to GND. 35 XRT86VL32 DUAL T1/E1/J1 FRAMER/LIU COMBO - HARDWARE DESCRIPTION REV. V1.2.1 MICROPROCESSOR INTERFACE SIGNAL NAME BALL # TYPE OUTPUT DRIVE (MA) CS V13 I - Microprocessor Interface—Chip Select Input: The user must assert this active low signal in order to select the Microprocessor Interface for READ and WRITE operations between the Microprocessor and the XRT86VL32 on-chip registers and buffer/memory locations. RD V3 I - Microprocessor Interface—Read Strobe Input: The exact behavior of this pin depends upon the type of Microprocessor/Microcontroller the Framer has been configured to operate in, as defined by the PTYPE[2:0] pins. Intel-Asynchronous Mode - RD* - READ Strobe Input: This input pin will function as the RD* (Active Low Read Strobe) input signal from the Microprocessor. Once this activelow signal is asserted, then the XRT86VL32 device will place the contents of the addressed register (or buffer location) on the Microprocessor Interface Bi-directional data bus (D[7:0]). When this signal is negated, then the Data Bus will be tristated. Motorola-Asynchronous (68K) Mode - DS* - Data Strobe: This input pin will function as the DS* (Data Strobe) input signal. Power PC 403 Mode - WE* - Write Enable Input: This input pin will function as the WE* (Write Enable) input pin. Anytime the Microprocessor Interface samples this active-low input signal (along with CS* and WR/R/W*) also being asserted (at a logic low level) upon the rising edge of PCLK, then the Microprocessor Interface will (upon the very same rising edge of PCLK) latch the contents on the Bi-Directional Data Bus (D[7:0]) into the “target” on-chip register or buffer location within the XRT86VL32 device. DESCRIPTION 36 XRT86VL32 DUAL T1/E1/J1 FRAMER/LIU COMBO - HARDWARE DESCRIPTION REV. V1.2.1 MICROPROCESSOR INTERFACE SIGNAL NAME BALL # TYPE OUTPUT DRIVE (MA) WR V12 I - DESCRIPTION Microprocessor Interface—Write Strobe Input The exact behavior of this pin depends upon the type of Microprocessor/Microcontroller the XRT86VL32 has been configured to operate in, as defined by the PTYPE[2:0] pins. Intel-Asynchronous Mode - WR* - Write Strobe Input: This input pin functions as the WR* (Active Low WRITE Strobe) input signal from the Microprocessor. Once this active-low signal is asserted, then the input buffers (associated with the BiDirectional Data Bus pin, D[7:0]) will be enabled. The Microprocessor Interface will latch the contents on the BiDirectional Data Bus (into the “target” register or address location, within the XRT86VL32) upon the rising edge of this input pin. Motorola-Asynchronous Mode - R/W* - Read/Write Operation Identification Input Pin: This pin is functionally equivalent to the “R/W*” input pin. In the Motorola Mode, a “READ” operation occurs if this pin is held at a logic “1”, coincident to a falling edge of the RD/DS* (Data Strobe) input pin. Similarly a WRITE operation occurs if this pin is at a logic “0”, coincident to a falling edge of the RD/DS* (Data Strobe) input pin. Power PC 403 Mode - R/W* - Read/Write Operation Identification Input: This input pin will function as the “Read/Write Operation Identification Input” pin. Anytime the Microprocessor Interface samples this input signal at a logic low (while also sampling the CS* input pin “low”) upon the rising edge of PCLK, then the Microprocessor Interface will (upon the very same rising edge of PCLK) latch the contents of the Address Bus (A[14:0]) into the Microprocessor Interface circuitry, in preparation for this forthcoming READ operation. At some point (later in this READ operation) the Microprocessor will also assert the DBEN*/OE* input pin, and the Microprocessor Interface will then place the contents of the “target” register (or address location within the XRT86VL32 device) upon the Bi-Directional Data Bus pins (D[7:0]), where it can be read by the Microprocessor. Anytime the Microprocessor Interface samples this input signal at a logic high (while also sampling the CS* input pin a logic “low”) upon the rising edge of PCLK, then the Microprocessor Interface will (upon the very same rising edge of PCLK) latch the contents of the Address Bus (A[14:0]) into the Microprocessor Interface circuitry, in preparation for the forthcoming WRITE operation. At some point (later in this WRITE operation) the Microprocessor will also assert the RD*/DS*/WE* input pin, and the Microprocessor Interface will then latch the contents of the Bi-Directional Data Bus (D[7:0]) into the contents of the “target” register or buffer location (within the XRT86VL32). 37 XRT86VL32 DUAL T1/E1/J1 FRAMER/LIU COMBO - HARDWARE DESCRIPTION REV. V1.2.1 MICROPROCESSOR INTERFACE SIGNAL NAME BALL # TYPE OUTPUT DRIVE (MA) ACK0 T2 I - DESCRIPTION DMA Cycle Acknowledge Input—DMA Controller 0 (Write): The external DMA Controller will assert this input pin “Low” when the following two conditions are met: 1. After the DMA Controller, within the Framer has asserted (toggled “Low”), the Req_0 output signal. 2. When the external DMA Controller is ready to transfer data from external memory to the selected Transmit HDLC buffer. ACK1 At this point, the DMA transfer between the external memory and the selected Transmit HDLC buffer may begin. After completion of the DMA cycle, the external DMA Controller will negate this input pin after the DMA Controller within the Framer has negated the Req_0 output pin. The external DMA Controller must do this in order to acknowledge the end of the DMA cycle. DMA Cycle Acknowledge Input—DMA Controller 1 (Read): The external DMA Controller asserts this input pin “Low” when the following two conditions are met: U2 1. After the DMA Controller, within the Framer has asserted (toggled "Low"), the Req_1 output signal. 2. When the external DMA Controller is ready to transfer data from the selected Receive HDLC buffer to external memory. At this point, the DMA transfer between the selected Receive HDLC buffer and the external memory may begin. After completion of the DMA cycle, the external DMA Controller will negate this input pin after the DMA Controller within the Framer has negated the Req_1 output pin. The external DMA Controller will do this in order to acknowledge the end of the DMA cycle. NOTE: This pin is internally pulled “High” with a 50kΩ resistor. BLAST U10 I - Last Cycle of Burst Indicator Input: If the Microprocessor Interface is operating in the Intel-I960 Mode, then this input pin is used to indicate (to the Microprocessor Interface block) that the current data transfer is the last data transfer within the current burst operation. The Microprocessor should assert this input pin (by toggling it “Low”) in order to denote that the current READ or WRITE operation (within a BURST operation) is the last operation of this BURST operation. NOTES: 1. If the user has configured the Microprocessor Interface to operate in the Intel-Asynchronous, the Motorola-Asynchronous or the Power PC 403 Mode, then he/she should tie this input pin to GND. 2. This pin is internally pulled “High” with a 50kΩ resistor. 38 XRT86VL32 DUAL T1/E1/J1 FRAMER/LIU COMBO - HARDWARE DESCRIPTION REV. V1.2.1 MICROPROCESSOR INTERFACE SIGNAL NAME BALL # TYPE OUTPUT DRIVE (MA) RESET P1 I - DESCRIPTION Hardware Reset Input Reset is an active low input. If this pin is pulled “Low” for more than 10µS, the device will be reset. When this occurs, all output will be ‘tri-stated’, and all internal registers will be reset to their default values. 39 XRT86VL32 DUAL T1/E1/J1 FRAMER/LIU COMBO - HARDWARE DESCRIPTION REV. V1.2.1 POWER SUPPLY PINS (3.3V) SIGNAL NAME BALL # TYPE DESCRIPTION VDD D16 P3 R15 T9 PWR Framer Block Power Supply (I/O) RVDD E3 J3 PWR Receiver Analog Power Supply for LIU Section TVDD F3 K3 PWR Transmitter Analog Power Supply for LIU Section POWER SUPPLY PINS (1.8V) SIGNAL NAME BALL # TYPE DESCRIPTION DVDD18 B8 C4 J16 R13 U7 PWR Digital Power Supply for LIU Section AVDD18 A2 PWR Analog Power Supply for LIU Section VDDPLL18 B1 C2 D2 D3 PWR Analog Power Supply for PLL 40 XRT86VL32 DUAL T1/E1/J1 FRAMER/LIU COMBO - HARDWARE DESCRIPTION REV. V1.2.1 GROUND PINS SIGNAL NAME BALL # TYPE DESCRIPTION VSS A5 B14 C16 M15 M16 R4 T5 U16 GND Framer Block Ground DGND C5 GND Digital Ground for LIU Section AGND B3 GND Analog Ground for LIU Section RGND E2 J2 GND Receiver Analog Ground for LIU Section TGND F2 K2 GND Transmitter Analog Ground for LIU Section GNDPLL18 A1 C1 D1 D4 GND Analog Ground for PLL NO CONNECT PINS SIGNAL NAME TYPE DESCRIPTION NC NC No Connect Pins A15, A16, A17, A18, B15, B16, B17, B18, C13, C15, C17, C18, D13, D14, D17, D18, E15, E16, E17, E18, F15, F16, F17, G1, G2, G3, G4, G17, G18, H1, H2, H3, H4, H18, L1, L2, L3, L4, M1, M2, M3, M4, P16, P17, P18, R12, R14, R16, R17, R18, T11, T12, T13, T14, T15, T17, T18, U12, U13, U14, U15, U17, U18, V14, V15, V16, V17, V18 41 XRT86VL32 DUAL T1/E1/J1 FRAMER/LIU COMBO - HARDWARE DESCRIPTION REV. V1.2.1 ELECTRICAL CHARACTERISTICS ABSOLUTE MAXIMUMS Power Supply..................................................................... VDDIO .. ................................................ -0.5V to +3.465V Power Rating PBGA Package..................................1.39W (at zero air flow) VDDCORE...............................................-0.5V to +1.890V Storage Temperature ...............................-65°C to 150°C Input Logic Signal Voltage (Any Pin) .........-0.5V to + 5.5V Operating Temperature Range.................-40°C t o 85°C ESD Protection (HBM)......................... ..................>2000V Supply Voltage ...................... GND-0.5V to +VDD + 0.5V Input Current (Any Pin) ...................................... + 100mA DC ELECTRICAL CHARACTERISTICS Test Conditions: TA = 25°C, VDD IO = 3.3V + 5% , VDDCORE = 1.8V + 5% unless otherwise specified PARAMETER SYMBOL MIN. TYP. MAX. UNITS +10 µA 0.8 V -10 CONDITIONS ILL Data Bus Tri-State Bus Leakage Current VIL Input Low voltage VIH Input High Voltage 2.0 VDD V VOL Output Low Voltage 0.0 0.4 V IOL = -1.6mA VOH Output High Voltage 2.4 VDD V IOH = 40µA IOC Open Drain Output Leakage Current IIH Input High Voltage Current -10 10 µA VIH = VDD IIL Input Low Voltage Current -10 10 µA VIL = GND µA TABLE 4: XRT86VL32 POWER CONSUMPTION VDDIO = 3.3V + 5% , VDDCORE = 1.8V + 5% , TA=25°C, UNLESS OTHERWISE SPECIFIED TERMINATION TRANSFORMER RATIO RESISTOR RECEIVER TRANSMITTER SUPPLY VOLTAGE IMPEDANCE E1 3.3V 75Ω Internal 1:1 1:2 776 mW PRBS Pattern E1 3.3V 120Ω Internal 1:1 1:2 724 mW PRBS Pattern T1 3.3V 100Ω Internal 1:1 1:2 829 mW PRBS Pattern MODE TYP. 42 MAX. UNIT TEST CONDITIONS XRT86VL32 DUAL T1/E1/J1 FRAMER/LIU COMBO - HARDWARE DESCRIPTION REV. V1.2.1 AC ELECTRICAL CHARACTERISTICS TRANSMIT FRAMER (BASE RATE/NON-MUX) Test Conditions: TA = 25°C, VDD = 3.3V + 5% unless otherwise specified SYMBOL PARAMETER MIN. TYP. MAX. UNITS t1 TxSERCLK to TxMSYNC delay 234 nS t2 TxSERCLK to TxSYNC delay 230 nS t3 TxSERCLK to TxSER data delay 230 nS t4 Rising Edge of TxSERCLK to Rising Edge of TxCHCLK 13 nS t5 Rising Edge of TxCHCLK to Valid TxCHN[4:0] Data 6 nS t6 TxSERCLK to TxSIG delay 230 nS t7 TxSERCLK to TxFRACT delay 110 nS CONDITIONS FIGURE 2. FRAMER SYSTEM TRANSMIT TIMING DIAGRAM (BASE RATE/NON-MUX) t1 TxMSYNC t2 TxSYNC TxSERCLK t3 TxSER TxCHCLK (Output) t4 t5 TxCHN[4:0] (Output) t6 TxCHN_0 (TxSIG) A t7 TxCHN_1 (TxFRACT) 43 B C D XRT86VL32 DUAL T1/E1/J1 FRAMER/LIU COMBO - HARDWARE DESCRIPTION REV. V1.2.1 AC ELECTRICAL CHARACTERISTICS RECEIVE FRAMER (BASE RATE/NON-MUX) Test Conditions: TA = 25°C, VDD = 3.3V + 5% unless otherwise specified SYMBOL PARAMETER MIN. TYP. MAX. UNITS RxSERCLK as an Output t8 Rising Edge of RxSERCLK to Rising Edge of RxCASYNC 4 nS t9 Rising Edge of RxSERCLK to Rising Edge of RxCRCSYNC 4 nS t10 Rising Edge of RxSERCLK to Rising Edge of RxSYNC (RxSYNC as Output) 4 nS t11 Rising Edge of RxSERCLK to Rising Edge of RxSER 6 nS t12 Rising Edge of RxSERCLK to Rising Edge of Valid RxCHN[4:0] data 6 nS RxSERCLK as an Input t13 Rising Edge of RxSERCLK to Rising Edge of RxCASYNC 8 nS t14 Rising Edge of RxSERCLK to Rising Edge of RxCRCSYNC 8 nS t15 Rising Edge of RxSERCLK to Rising Edge of RxSYNC (RxSYNC as Output) 10 nS t15 Rising Edge of RxSERCLK to Rising Edge of RxSYNC (RxSYNC as Input) 230 nS t16 Rising Edge of RxSERCLK to Rising Edge of RxSER 10 nS t17 Rising Edge of RxSERCLK to Rising Edge of Valid RxCHN[4:0] data 9 nS FIGURE 3. FRAMER SYSTEM RECEIVE TIMING DIAGRAM (RXSERCLK AS AN OUTPUT) t8 RxCRCSYNC t9 RxCASYNC t10 RxSYNC RxSERCLK (Output) t11 RxSER t12 RxCHN[4:0] 44 CONDITIONS XRT86VL32 DUAL T1/E1/J1 FRAMER/LIU COMBO - HARDWARE DESCRIPTION FIGURE 4. FRAMER SYSTEM RECEIVE TIMING DIAGRAM (RXSERCLK AS AN INPUT) t13 RxCRCSYNC t14 RxCASYNC t15 RxSYNC RxSERCLK (Input) t16 RxSER t17 RxCHN[4:0] 45 REV. V1.2.1 XRT86VL32 DUAL T1/E1/J1 FRAMER/LIU COMBO - HARDWARE DESCRIPTION REV. V1.2.1 AC ELECTRICAL CHARACTERISTICS TRANSMIT FRAMER (HMVIP/H100 MODE) Test Conditions: TA = 25°C, VDD = 3.3V + 5% unless otherwise specified SYMBOL PARAMETER MIN. TYP. MAX. UNITS t1 TxSYNC Setup Time - HMVIP Mode 7 nS t2 TxSYNC Hold Time - HMVIP Mode 4 nS t3 TxSYNC Setup Time - H100 Mode 7 nS t4 TxSYNC Hold Time - H100 Mode 4 nS t5 TxSER Setup Time - HMVIP and H100 Mode 6 nS t6 TxSER Hold Time - HMVIP and H100 Mode 3 nS t7 TxSIG Setup Time - HMVIP and H100 Mode 6 nS t8 TxSIG Hold Time - HMVIP and H100 Mode 3 nS CONDITIONS FIGURE 5. FRAMER SYSTEM TRANSMIT TIMING DIAGRAM (HMVIP AND H100 MODE) TxInClk (16MHz) TxSYNC (HMVIP Mode) t2 t1 t4 TxSYNC (H100 Mode) t3 TxSERCLK TxSER t5 t6 TxCHN_0 (TxSIG) t8 t7 A B C D NOTE: Setup and Hold time is not valid from TxInClk to TxSERCLK as TxInClk is used as the timing source for the back plane interface and TxSERCLK is used as the timing source on the line side. 46 XRT86VL32 DUAL T1/E1/J1 FRAMER/LIU COMBO - HARDWARE DESCRIPTION REV. V1.2.1 AC ELECTRICAL CHARACTERISTICS RECEIVE FRAMER (HMVIP/H100 MODE) Test Conditions: TA = 25°C, VDD = 3.3V + 5% unless otherwise specified SYMBOL PARAMETER MIN. TYP. MAX. UNITS t1 RxSYNC Setup Time - HMVIP Mode 4 nS t2 RxSYNC Hold Time - HMVIP Mode 3 nS t3 RxSYNC Setup Time - H100 Mode 5 nS t4 RxSYNC Hold Time - H100 Mode 3 nS t5 Rising Edge of RxSERCLK to Rising Edge of RxSER delay 11 NOTE: Both RxSERCLK and RxSYNC are inputs FIGURE 6. FRAMER SYSTEM RECEIVE TIMING DIAGRAM (HMVIP/H100 MODE) RxSERCLK (16MHz) RxSYNC (HMVIP Mode) t2 t1 t4 RxSYNC (H100 Mode) RxSER t3 t5 47 nS CONDITIONS XRT86VL32 DUAL T1/E1/J1 FRAMER/LIU COMBO - HARDWARE DESCRIPTION REV. V1.2.1 AC ELECTRICAL CHARACTERISTICS TRANSMIT OVERHEAD FRAMER Test Conditions: TA = 25°C, VDD = 3.3V + 5% unless otherwise specified SYMBOL PARAMETER MIN. TYP. MAX. UNITS t18 TxSYNC Setup Time (Falling Edge TxSERCLK) 6 nS t19 TxSYNC Hold Time (Falling Edge TxSERCLK) 4 nS t20 Rising Edge of TxSERCLK to TxOHCLK 12 FIGURE 7. FRAMER SYSTEM TRANSMIT OVERHEAD TIMING DIAGRAM t18 t19 TxSYNC TxSERCLK t20 TxOHCLK 48 nS CONDITIONS XRT86VL32 DUAL T1/E1/J1 FRAMER/LIU COMBO - HARDWARE DESCRIPTION REV. V1.2.1 AC ELECTRICAL CHARACTERISTICS RECEIVE OVERHEAD FRAMER Test Conditions: TA = 25°C, VDD = 3.3V + 5% unless otherwise specified SYMBOL PARAMETER MIN. TYP. MAX. UNITS RxSERCLK as an Output t21 Rising Edge of RxSERCLK to Rising Edge of RxSYNC (RxSYNC as Output) 4 nS t22 Rising Edge of RxSERCLK to Rising Edge of RxOHCLK 6 nS t23 Rising Edge of RxSERCLK to Rising Edge of RxOH 8 nS RxSERCLK as an Input t24 Rising Edge of RxSERCLK to Rising Edge of RxSYNC (RxSYNC as Output) 12 nS t24 Rising Edge of RxSERCLK to Rising Edge of RxSYNC (RxSYNC as Input) 230 nS t25 Rising Edge of RxSERCLK to Rising Edge of RxOHCLK 12 nS t26 Rising Edge of RxSERCLK to Rising Edge of RxOH 15 nS FIGURE 8. FRAMER SYSTEM RECEIVE OVERHEAD TIMING DIAGRAM (RXSERCLK AS AN OUTPUT) t21 RxSYNC RxSERCLK (Output) t22 RxOHCLK t23 RxOH FIGURE 9. FRAMER SYSTEM RECEIVE OVERHEAD TIMING DIAGRAM (RXSERCLK AS AN INPUT) RxOH Interface with RxSERCLK as an Input t24 RxSYNC RxSERCLK (Input) t25 RxOHCLK t26 RxOH 49 CONDITIONS XRT86VL32 DUAL T1/E1/J1 FRAMER/LIU COMBO - HARDWARE DESCRIPTION REV. V1.2.1 TABLE 5: E1 RECEIVER ELECTRICAL CHARACTERISTICS VDDIO = 3.3V + 5% , VDDCORE = 1.8V + 5%, TA= -40° to 85°C, unless otherwise specified PARAMETER MIN. TYP. MAX. UNIT Receiver loss of signal: Cable attenuation @1024kHz Number of consecutive zeros before RLOS is set Input signal level at RLOS RLOS De-asserted TEST CONDITIONS 32 15 20 dB ITU-G.775, ETSI 300 233 12.5 % ones Receiver Sensitivity (Short Haul with cable loss) 11 dB With nominal pulse amplitude of 3.0V for 120Ω and 2.37V for 75Ω application. Receiver Sensitivity (Long Haul with cable loss) 0 dB With nominal pulse amplitude of 3.0V for 120Ω and 2.37V for 75Ω application. Input Impedance Input Jitter Tolerance: 1 Hz 10kHz-100kHz 43 kΩ 15 37 0.3 UIpp UIpp ITU G.823 kHz dB ITU G.736 Recovered Clock Jitter Transfer Corner Frequency Peaking Amplitude - Jitter Attenuator Corner Frequency (-3dB curve) (JABW=0) (JABW=1) - 10 1.5 - Hz Hz ITU G.736 12 8 8 - - dB dB dB ITU-G.703 Return Loss: 51kHz - 102kHz 102kHz - 2048kHz 2048kHz - 3072kHz 20 0.5 50 XRT86VL32 DUAL T1/E1/J1 FRAMER/LIU COMBO - HARDWARE DESCRIPTION REV. V1.2.1 TABLE 6: T1 RECEIVER ELECTRICAL CHARACTERISTICS VDDIO = 3.3V + 5% , VDDCORE = 1.8V + 5%, TA=-40° to 85°C, unless otherwise specified PARAMETER MIN. TYP. MAX. UNIT TEST CONDITIONS Receiver loss of signal: Number of consecutive zeros before RLOS is set Input signal level at RLOS RLOS Clear Receiver Sensitivity (Short Haul with cable loss) Receiver Sensitivity (Long Haul with cable loss) Normal Extended 175 15 20 - dB 12.5 - - % ones 12 - Recovered Clock Jitter Transfer Corner Frequency Peaking Amplitude Jitter Attenuator Corner Frequency (-3dB curve) Return Loss: 51kHz - 102kHz 102kHz - 2048kHz 2048kHz - 3072kHz ITU-G.775, ETSI 300 233 With nominal pulse amplitude of 3.0V for 100Ω termination 0 0 With nominal pulse amplitude of 3.0V for 100Ω termination 36 45 dB dB 15 - kΩ 138 0.4 - - UIpp AT&T Pub 62411 - 10 0.1 KHz dB TR-TSY-000499 - 3 Hz AT&T Pub 62411 - 14 20 16 Input Impedance Jitter Tolerance: 1Hz 10kHz - 100kHz dB Cable attenuation @772kHz - 51 dB dB dB XRT86VL32 DUAL T1/E1/J1 FRAMER/LIU COMBO - HARDWARE DESCRIPTION REV. V1.2.1 TABLE 7: E1 TRANSMITTER ELECTRICAL CHARACTERISTICS VDDIO = 3.3V + 5% , VDDCORE = 1.8V + 5%, TA=-40° to 85°C, unless otherwise specified MIN. PARAMETER TYP. MAX. UNIT AMI Output Pulse Amplitude: TEST CONDITIONS 1:2 Transformer 75Ω Application 120Ω Application 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 UIpp 15 9 8 - - dB dB dB Jitter Added by the Transmitter Output Output Return Loss: 51kHz -102kHz 102kHz-2048kHz 2048kHz-3072kHz Broad Band with jitter free TCLK applied to the input. ETSI 300 166 TABLE 8: E1 TRANSMIT RETURN LOSS REQUIREMENT FREQUENCY RETURN LOSS ETS 300166 51-102kHz 6dB 102-2048kHz 8dB 2048-3072kHz 8dB 52 XRT86VL32 DUAL T1/E1/J1 FRAMER/LIU COMBO - HARDWARE DESCRIPTION REV. V1.2.1 TABLE 9: T1 TRANSMITTER ELECTRICAL CHARACTERISTICS VDDIO = 3.3V + 5% , VDDCORE = 1.8V + 5%, TA=-40° to 85°C, unless otherwise specified MIN. TYP. MAX. UNIT AMI Output Pulse Amplitude: 2.4 3.0 3.60 V 1:2 Transformer measured at DSX_1. Output Pulse Width 338 350 362 ns ANSI T1.102 Output Pulse Width Imbalance - - 20 - ANSI T1.102 Output Pulse Amplitude Imbalance - - +200 mV ANSI T1.102 Jitter Added by the Transmitter Output - 0.025 0.05 UIpp Output Return Loss: 51kHz -102kHz 102kHz-2048kHz 2048kHz-3072kHz - 17 12 10 - dB dB dB PARAMETER 53 TEST CONDITIONS Broad Band with jitter free TCLK applied to the input. XRT86VL32 DUAL T1/E1/J1 FRAMER/LIU COMBO - HARDWARE DESCRIPTION REV. V1.2.1 FIGURE 10. ITU G.703 PULSE TEMPLATE 10% 20% 269 ns (244 + 25) 194 ns (244 – 50) 20% 10% V = 100% Nominal pulse 50% 20% 10% 0% 10% 10% 219 ns (244 – 25) 10% 244 ns 488 ns (244 + 244) Note – V corresponds to the nominal peak value. TABLE 10: TRANSMIT PULSE MASK SPECIFICATION Test Load Impedance 75Ω Resistive (Coax) 120Ω Resistive (twisted Pair) 2.37V 3.0V 0 + 0.237V 0 + 0.3V 244ns 244ns 0.95 to 1.05 0.95 to 1.05 Nominal Peak Voltage of a Mark Peak voltage of a Space (no Mark) Nominal Pulse width Ratio of Positive and Negative Pulses Imbalance 54 XRT86VL32 DUAL T1/E1/J1 FRAMER/LIU COMBO - HARDWARE DESCRIPTION REV. V1.2.1 FIGURE 11. DSX-1 PULSE TEMPLATE (NORMALIZED AMPLITUDE) TABLE 11: DSX1 INTERFACE ISOLATED PULSE MASK AND CORNER POINTS MINIMUM CURVE MAXIMUM CURVE TIME (UI) NORMALIZED AMPLITUDE TIME (UI) NORMALIZED AMPLITUDE -0.77 -.05V -0.77 .05V -0.23 -.05V -0.39 .05V -0.23 0.5V -0.27 .8V -0.15 0.95V -0.27 1.15V 0.0 0.95V -0.12 1.15V 0.15 0.9V 0.0 1.05V 0.23 0.5V 0.27 1.05V 0.23 -0.45V 0.35 -0.07V 0.46 -0.45V 0.93 0.05V 0.66 -0.2V 1.16 0.05V 0.93 -0.05V 1.16 -0.05V 55 XRT86VL32 DUAL T1/E1/J1 FRAMER/LIU COMBO - HARDWARE DESCRIPTION REV. V1.2.1 TABLE 12: AC ELECTRICAL CHARACTERISTICS VDDIO = 3.3V + 5% , VDDCORE = 1.8V + 5%, TA=25°C, UNLESS OTHERWISE SPECIFIED PARAMETER SYMBOL MIN. TYP. MAX. UNITS MCLKIN Clock Duty Cycle 40 - 60 % MCLKIN Clock Tolerance - ±50 - ppm 56 XRT86VL32 DUAL T1/E1/J1 FRAMER/LIU COMBO - HARDWARE DESCRIPTION REV. V1.2.1 MICROPROCESSOR INTERFACE I/O TIMING INTEL INTERFACE TIMING - ASYNCHRONOUS The signals used for the Intel microprocessor interface are: Address Latch Enable (ALE), Read Enable (RD), Write Enable (WR), Chip Select (CS), Address and Data bits. The microprocessor interface uses minimum external glue logic and is compatible with the timings of the 8051 or 80188 family of microprocessors. The ALE signal can be tied ’HIGH’ if this signal is not available, and the corresponding timing interface is shown in Figure 13 and Table 14. FIGURE 12. INTEL µP INTERFACE TIMING DURING PROGRAMMED I/O READ AND WRITE OPERATIONS WHEN ALE IS NOT TIED ’HIGH’ t5 ALE t5 READ OPERATION t0 WRITE OPERATION t0 ADDR[14:0] Valid Address Valid Address CS Valid Data for Readback DATA[7:0] Data Available to Write Into the LIU t1 RD t3 WR t2 t4 RDY TABLE 13: INTEL MICROPROCESSOR INTERFACE TIMING SPECIFICATIONS SYMBOL PARAMETER MIN MAX UNITS t0 Valid Address to CS Falling Edge and ALE Rising Edge 0 - ns t1 ALE Falling Edge to RD Assert 5 - ns t2 RD Assert to RDY Assert - 320 ns NA RD Pulse Width (t2) 320 - ns t3 ALE Falling Edge to WR Assert 5 - ns t4 WR Assert to RDY Assert - 320 ns NA WR Pulse Width (t4) 320 - ns t5 ALE Pulse Width(t5) 10 57 ns XRT86VL32 DUAL T1/E1/J1 FRAMER/LIU COMBO - HARDWARE DESCRIPTION REV. V1.2.1 FIGURE 13. INTEL µP INTERFACE TIMING DURING PROGRAMMED I/O READ AND WRITE OPERATIONS WHEN ALE IS TIED ’HIGH’ READ OPERATION ALE WRITE OPERATION t0 t0 ADDR[14:0] Valid Address Valid Address CS Valid Data for Readback DATA[7:0] Data Available to Write Into the LIU t1 RD t3 WR t2 t4 RDY TABLE 14: INTEL MICROPROCESSOR INTERFACE TIMING SPECIFICATIONS SYMBOL PARAMETER MIN MAX UNITS t0 Valid Address to CS Falling Edge 0 - ns t1 CS Falling Edge to RD Assert 0 - ns t2 RD Assert to RDY Assert - 320 ns NA RD Pulse Width (t2) 320 - ns t3 CS Falling Edge to WR Assert 0 - ns t4 WR Assert to RDY Assert - 320 ns NA WR Pulse Width (t4) 320 - ns 58 XRT86VL32 DUAL T1/E1/J1 FRAMER/LIU COMBO - HARDWARE DESCRIPTION REV. V1.2.1 MOTOROLA ASYCHRONOUS INTERFACE TIMING The signals used in the Motorola microprocessor interface mode are: Address Strobe (AS), Data Strobe (DS), Read/Write Enable (R/W), Chip Select (CS), Address and Data bits. The interface is compatible with the timing of a Motorola 68000 microprocessor family. The interface timing is shown in Figure 14. The I/O specifications are shown in Table 15. FIGURE 14. MOTOROLA ASYCHRONOUS MODE INTERFACE SIGNALS DURING PROGRAMMED I/O READ AND WRITE OPERATIONS READ OPERATION W RITE OPERATIO N ALE_AS t0 t0 Valid Address ADDR[6:0] Valid Address t3 t3 CS Valid Data for Readback DATA[7:0] Data Available to Write Into the LIU t1 t1 RD_DS W R_R/W t2 RDY_DTACK t2 TABLE 15: MOTOROLA ASYCHRONOUS MODE MICROPROCESSOR INTERFACE TIMING SPECIFICATIONS SYMBOL PARAMETER MIN MAX UNITS t0 Valid Address to CS Falling Edge 0 - ns t1 CS Falling Edge to DS (Pin RD_DS) Assert 0 - ns t2 DS Assert to DTACK Assert - 320 ns NA DS Pulse Width (t2) 320 - ns t3 CS Falling Edge to AS (Pin ALE_AS) Falling Edge 0 - ns 59 XRT86VL32 DUAL T1/E1/J1 FRAMER/LIU COMBO - HARDWARE DESCRIPTION REV. V1.2.1 POWER PC 403 SYCHRONOUS INTERFACE TIMING The signals used in the Power PC 403 Synchronus microprocessor interface mode are: Address Strobe (AS), Microprocessor Clock (uPCLK), Data Strobe (DS), Read/Write Enable (R/W), Chip Select (CS), Address and Data bits. The interface timing is shown in Figure 15. The I/O specifications are shown in Table 16. FIGURE 15. POWER PC 403 INTERFACE SIGNALS DURING PROGRAMMED I/O READ AND WRITE OPERATIONS READ OPERATION WRITE OPERATION TS tdc uPCLK tcp t0 t0 Valid Address ADDR[14:0] Valid Address t3 t3 CS Valid Data for Readback DATA[7:0] Data Available to Write Into the LIU t1 WE R/W t2 TA t2 TABLE 16: POWER PC 403 MICROPROCESSOR INTERFACE TIMING SPECIFICATIONS SYMBOL PARAMETER MIN MAX UNITS t0 Valid Address to CS Falling Edge 0 - ns t1 CS Falling Edge to WE Assert 0 - ns t2 WE Assert to TA Assert - 320 ns 320 - ns NA WE Pulse Width (t2) t3 CS Falling Edge to TS Falling Edge 0 - tdc µPCLK Duty Cycle 40 60 % tcp µPCLK Clock Period 20 - ns 60 XRT86VL32 DUAL T1/E1/J1 FRAMER/LIU COMBO - HARDWARE DESCRIPTION REV. V1.2.1 ORDERING INFORMATION PRODUCT NUMBER PACKAGE OPERATING TEMPERATURE RANGE XRT86VL32IB 225 LEAD PBGA -400C to +850C PACKAGE DIMENSIONS 225 Ball Plastic Ball Grid Array (19.0 mm x 19.0 mm, 1.0mm pitch PBGA) E Rev. 1.00 1 1 1 1 1 8 6 4 2 8 16 1 4 1 2 1 0 9 7 5 3 1 7 5 3 1 D A1 Feature / Mark A B C D E F G H J K L M N P R T U V D1 D1 D (A1 corner feature is mfger option) A 2 D2 Seating Plane A A 1 b e A 3 Note: The control dimension is in millimeter. SYMBOL A A1 A2 A3 D D1 D2 b e INCHES MIN MAX 0.049 0.096 0.016 0.024 0.013 0.024 0.020 0.048 0.740 0.756 0.669 BSC 0.665 0.669 0.020 0.028 0.039 BSC 61 MILLIMETERS MIN MAX 1.24 2.45 0.40 0.60 0.32 0.60 0.52 1.22 18.80 19.20 17.00 BSC 16.90 17.00 0.50 0.70 1.00 BSC XRT86VL32 DUAL T1/E1/J1 FRAMER/LIU COMBO - HARDWARE DESCRIPTION REV. V1.2.1 REVISION HISTORY REVISION # DATE V1.2.0 January 29, 2007 V1.2.1 September 12, 2007 DESCRIPTION Released to production. Changed Pin E16 to NC on page 4. The Pin description has the correct name, but the pin list had a typo. 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 2007 EXAR Corporation Datasheet September 2007. Reproduction, in part or whole, without the prior written consent of EXAR Corporation is prohibited. 62