IDT IDT82V3390

SYNCHRONOUS ETHERNET
IDT WAN PLL™
IDT82V3390
DATASHEET
Version - 2
Datasheet
July 14, 2011
DISCLAIMER
Integrated Device Technology, Inc. reserves the right to make changes to its products or specifications at any time, without notice, in order to improve design or performance and to supply the best possible product. IDT does not assume any responsibility for use of any circuitry described other than the circuitry embodied in an IDT product. The Company makes no representations that circuitry
described herein is free from patent infringement or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent, patent rights or other
rights, of Integrated Device Technology, Inc.
LIFE SUPPORT POLICY
Integrated Device Technology's products are not authorized for use as critical components in life support devices or systems unless a specific written agreement pertaining to such intended use is executed between the manufacturer and an officer of IDT.
1. Life support devices or systems are devices or systems which (a) are intended for surgical implant into the body or (b) support or sustain life and whose failure to perform, when properly used in
accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user.
2. A critical component is any components of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its
safety or effectiveness.
Table of Contents
Datasheet
FEATURES .............................................................................................................................................................................. 9
HIGHLIGHTS.................................................................................................................................................................................................... 9
MAIN FEATURES ............................................................................................................................................................................................ 9
OTHER FEATURES ......................................................................................................................................................................................... 9
APPLICATIONS....................................................................................................................................................................... 9
DESCRIPTION....................................................................................................................................................................... 10
FUNCTIONAL BLOCK DIAGRAM ........................................................................................................................................ 11
1 PIN ASSIGNMENT ........................................................................................................................................................... 12
2 PIN DESCRIPTION .......................................................................................................................................................... 13
3 FUNCTIONAL DESCRIPTION ......................................................................................................................................... 19
3.1
3.2
3.3
RESET ........................................................................................................................................................................................................... 19
MASTER CLOCK .......................................................................................................................................................................................... 19
INPUT CLOCKS & FRAME SYNC SIGNAL ................................................................................................................................................. 20
3.3.1 Input Clocks .................................................................................................................................................................................... 20
3.3.2 Frame SYNC Input Signals ............................................................................................................................................................ 20
3.4 INPUT CLOCK PRE-DIVIDER ...................................................................................................................................................................... 21
3.5 INPUT CLOCK QUALITY MONITORING ..................................................................................................................................................... 23
3.5.1 LOS Monitoring .............................................................................................................................................................................. 23
3.5.2 Activity Monitoring ......................................................................................................................................................................... 23
3.5.3 Frequency Monitoring ................................................................................................................................................................... 24
3.6 T0 / T4 DPLL INPUT CLOCK SELECTION .................................................................................................................................................. 26
3.6.1 External Fast Selection (T0 only) .................................................................................................................................................. 26
3.6.2 Forced Selection ............................................................................................................................................................................ 27
3.6.3 Automatic Selection ....................................................................................................................................................................... 27
3.7 SELECTED INPUT CLOCK MONITORING .................................................................................................................................................. 28
3.7.1 T0 / T4 DPLL Locking Detection ................................................................................................................................................... 28
3.7.1.1 Fast Loss .......................................................................................................................................................................... 28
3.7.1.2 Coarse Phase Loss .......................................................................................................................................................... 28
3.7.1.3 Fine Phase Loss ............................................................................................................................................................... 28
3.7.1.4 Hard Limit Exceeding ....................................................................................................................................................... 28
3.7.2 Locking Status ............................................................................................................................................................................... 28
3.7.3 Phase Lock Alarm (T0 only) .......................................................................................................................................................... 29
3.8 INPUT CLOCK SELECTION ......................................................................................................................................................................... 30
3.8.1 Input Clock Validity ........................................................................................................................................................................ 30
3.8.2 Input Clock Selection ..................................................................................................................................................................... 30
3.8.2.1 Revertive Switching .......................................................................................................................................................... 30
3.8.2.2 Non-Revertive Switching (T0 only) ................................................................................................................................... 31
3.8.3 Selected / Qualified Input Clocks Indication ................................................................................................................................ 31
3.9 SELECTED INPUT CLOCK STATUS VS. DPLL OPERATING MODE ....................................................................................................... 32
3.9.1 T0 Selected Input Clock vs. DPLL Operating Mode .................................................................................................................... 32
3.9.2 T4 Selected Input Clock vs. DPLL Operating Mode .................................................................................................................... 34
3.10 T0 / T4 DPLL OPERATING MODE ............................................................................................................................................................... 35
3.10.1 T0 DPLL Operating Mode .............................................................................................................................................................. 35
3.10.1.1 Free-Run Mode ................................................................................................................................................................ 35
3.10.1.2 Pre-Locked Mode ............................................................................................................................................................. 35
3.10.1.3 Locked Mode .................................................................................................................................................................... 35
Table of Contents
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July 14, 2011
IDT82V3390 DATASHEET
3.11
3.12
3.13
3.14
3.15
3.16
3.17
SYNCHRONOUS ETHERNET WAN PLL
3.10.1.3.1 Temp-Holdover Mode .................................................................................................................................... 35
3.10.1.4 Lost-Phase Mode ............................................................................................................................................................. 35
3.10.1.5 Holdover Mode ................................................................................................................................................................. 35
3.10.1.5.1 Automatic Instantaneous ............................................................................................................................... 36
3.10.1.5.2 Automatic Slow Averaged ............................................................................................................................. 36
3.10.1.5.3 Automatic Fast Averaged .............................................................................................................................. 36
3.10.1.5.4 Manual ........................................................................................................................................................... 36
3.10.1.5.5 Holdover Frequency Offset Read .................................................................................................................. 36
3.10.1.6 Pre-Locked2 Mode ........................................................................................................................................................... 36
3.10.2 T4 DPLL Operating Mode .............................................................................................................................................................. 36
3.10.2.1 Free-Run Mode ................................................................................................................................................................ 36
3.10.2.2 Locked Mode .................................................................................................................................................................... 36
3.10.2.3 Holdover Mode ................................................................................................................................................................. 36
T0 / T4 DPLL OUTPUT ................................................................................................................................................................................. 38
3.11.1 PFD Output Limit ............................................................................................................................................................................ 38
3.11.2 Frequency Offset Limit .................................................................................................................................................................. 38
3.11.3 Hitless Reference Switching (T0 only) ......................................................................................................................................... 38
3.11.4 Phase Offset Selection (T0 only) .................................................................................................................................................. 38
3.11.5 Five Paths of T0 / T4 DPLL Outputs ............................................................................................................................................. 38
3.11.5.1 T0 Path ............................................................................................................................................................................. 38
3.11.5.2 T4 Path ............................................................................................................................................................................. 38
T0 / T4 APLL ................................................................................................................................................................................................. 40
3.12.1 OPTIONAL EXTERNAL FILTER ..................................................................................................................................................... 40
OUTPUT CLOCKS & FRAME SYNC SIGNALS ........................................................................................................................................... 41
3.13.1 Output Clocks ................................................................................................................................................................................. 41
3.13.2 Frame SYNC Output Signals ......................................................................................................................................................... 43
MASTER / SLAVE CONFIGURATION ......................................................................................................................................................... 45
INTERRUPT SUMMARY ............................................................................................................................................................................... 46
T0 AND T4 SUMMARY ................................................................................................................................................................................. 46
POWER SUPPLY FILTERING TECHNIQUES ............................................................................................................................................. 47
4 TYPICAL APPLICATION ................................................................................................................................................. 48
4.1
MASTER / SLAVE APPLICATION ............................................................................................................................................................... 48
5.1
5.2
5.3
5.4
5.5
5.6
EPROM MODE .............................................................................................................................................................................................. 51
MULTIPLEXED MODE .................................................................................................................................................................................. 52
INTEL MODE ................................................................................................................................................................................................. 55
MOTOROLA MODE ...................................................................................................................................................................................... 57
SERIAL MODE .............................................................................................................................................................................................. 59
I2C MODE ...................................................................................................................................................................................................... 61
5.6.1 I2C Device address ........................................................................................................................................................................ 61
5.6.2 I2C Bus Timing ............................................................................................................................................................................... 61
5.6.3 Supported Transactions ................................................................................................................................................................ 61
5 MICROPROCESSOR INTERFACE .................................................................................................................................. 49
6 JTAG ................................................................................................................................................................................ 63
7 PROGRAMMING INFORMATION .................................................................................................................................... 64
7.1
7.2
REGISTER MAP ............................................................................................................................................................................................ 64
REGISTER DESCRIPTION ........................................................................................................................................................................... 70
7.2.1 Global Control Registers ............................................................................................................................................................... 70
7.2.2 Interrupt Registers ......................................................................................................................................................................... 79
7.2.3 Input Clock Frequency & Priority Configuration Registers ....................................................................................................... 84
7.2.4 Input Clock Quality Monitoring Configuration & Status Registers ......................................................................................... 107
7.2.5 T0 / T4 DPLL Input Clock Selection Registers ........................................................................................................................... 123
7.2.6 T0 / T4 DPLL State Machine Control Registers ......................................................................................................................... 127
7.2.7 T0 / T4 DPLL & APLL Configuration Registers .......................................................................................................................... 129
Datasheet
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SYNCHRONOUS ETHERNET WAN PLL
7.2.8 Output Configuration Registers .................................................................................................................................................. 143
7.2.9 Phase Transient Monitor & Phase Offset Control Registers .................................................................................................... 154
7.2.10 Synchronization Configuration Registers ................................................................................................................................. 155
8 THERMAL MANAGEMENT ........................................................................................................................................... 156
8.1
8.2
8.3
8.4
JUNCTION TEMPERATURE ...................................................................................................................................................................... 156
EXAMPLE OF JUNCTION TEMPERATURE CALCULATION ................................................................................................................... 156
HEATSINK EVALUATION .......................................................................................................................................................................... 156
TQFP EPAD THERMAL RELEASE PATH ................................................................................................................................................. 157
9.1
9.2
9.3
ABSOLUTE MAXIMUM RATING ................................................................................................................................................................ 158
RECOMMENDED OPERATION CONDITIONS .......................................................................................................................................... 158
I/O SPECIFICATIONS ................................................................................................................................................................................. 159
9.3.1 AMI Input / Output Port ................................................................................................................................................................ 159
9.3.1.1 Structure ......................................................................................................................................................................... 159
9.3.1.2 I/O Level ......................................................................................................................................................................... 159
9.3.1.3 Over-Voltage Protection ................................................................................................................................................. 161
9.3.2 CMOS Input / Output Port ............................................................................................................................................................ 161
9.3.3 PECL / LVDS Input / Output Port ................................................................................................................................................ 162
9.3.3.1 PECL Input / Output Port ................................................................................................................................................ 162
9.3.3.2 LVDS Input / Output Port ................................................................................................................................................ 164
9.3.3.3 Single-Ended Input for Differential Input ........................................................................................................................ 165
JITTER PERFORMANCE ........................................................................................................................................................................... 166
OUTPUT WANDER GENERATION ............................................................................................................................................................ 170
INPUT / OUTPUT CLOCK TIMING ............................................................................................................................................................. 171
OUTPUT CLOCK TIMING ........................................................................................................................................................................... 172
9 ELECTRICAL SPECIFICATIONS .................................................................................................................................. 158
9.4
9.5
9.6
9.7
PACKAGE DIMENSIONS.................................................................................................................................................... 178
ORDERING INFORMATION................................................................................................................................................ 181
REVISION HISTORY ........................................................................................................................................................... 181
Datasheet
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List of Tables
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Pin Description ............................................................................................................................................................................................. 13
Related Bit / Register in Chapter 3.2 ........................................................................................................................................................... 19
Related Bit / Register in Chapter 3.3 ........................................................................................................................................................... 20
Pre-Divider Function .................................................................................................................................................................................... 22
Related Bit / Register in Chapter 3.5 ........................................................................................................................................................... 25
Input Clock Selection for T0 Path ................................................................................................................................................................ 26
Input Clock Selection for T4 Path ................................................................................................................................................................ 26
External Fast Selection ................................................................................................................................................................................ 26
Related Bit / Register in Chapter 3.6 ........................................................................................................................................................... 27
Coarse Phase Limit Programming (the selected input clock of 2 kHz, 4 kHz or 8 kHz) .............................................................................. 28
Coarse Phase Limit Programming (the selected input clock of other than 2 kHz, 4 kHz and 8 kHz) .......................................................... 28
Related Bit / Register in Chapter 3.7 ........................................................................................................................................................... 29
Conditions of Qualified Input Clocks Available for T0 & T4 Selection ......................................................................................................... 30
Related Bit / Register in Chapter 3.8 ........................................................................................................................................................... 31
T0 DPLL Operating Mode Control ............................................................................................................................................................... 32
T4 DPLL Operating Mode Control ............................................................................................................................................................... 34
Related Bit / Register in Chapter 3.9 ........................................................................................................................................................... 34
Frequency Offset Control in Temp-Holdover Mode ..................................................................................................................................... 35
Frequency Offset Control in Holdover Mode ............................................................................................................................................... 36
Holdover Frequency Offset Read ................................................................................................................................................................ 36
Related Bit / Register in Chapter 3.10 ......................................................................................................................................................... 37
Related Bit / Register in Chapter 3.11 ......................................................................................................................................................... 39
Related Bit / Register in Chapter 3.12 ......................................................................................................................................................... 40
T0 / T4 APLL Approximate Loop Bandwidth Selection ................................................................................................................................ 40
Outputs on OUT1 ~ OUT7 if Derived from T0/T4 DPLL Outputs ................................................................................................................ 41
Outputs on OUT1 ~ OUT7 if Derived from T0/T4 APLL1 ............................................................................................................................ 42
Outputs on OUT8 & OUT9 ........................................................................................................................................................................... 42
Synchronization Control ............................................................................................................................................................................... 43
Related Bit / Register in Chapter 3.13 ......................................................................................................................................................... 44
Device Master / Slave Control ..................................................................................................................................................................... 45
Related Bit / Register in Chapter 3.15 ......................................................................................................................................................... 46
Microprocessor Interface ............................................................................................................................................................................. 49
Microprocessor Interface Pins ..................................................................................................................................................................... 50
Access Timing Characteristics in EPROM Mode ......................................................................................................................................... 51
Read Timing Characteristics in Multiplexed Mode ....................................................................................................................................... 52
Write Timing Characteristics in Multiplexed Mode ....................................................................................................................................... 54
Read Timing Characteristics in Intel Mode .................................................................................................................................................. 55
Write Timing Characteristics in Intel Mode .................................................................................................................................................. 56
Read Timing Characteristics in Motorola Mode ........................................................................................................................................... 57
Write Timing Characteristics in Motorola Mode ........................................................................................................................................... 58
Read Timing Characteristics in Serial Mode ................................................................................................................................................ 59
Write Timing Characteristics in Serial Mode ................................................................................................................................................ 60
Description of Timing Parameters of I2C Master Interface .......................................................................................................................... 61
Description of I2C Slave Interface Supported Transactions ........................................................................................................................ 62
JTAG Timing Characteristics ....................................................................................................................................................................... 63
Register List and Map .................................................................................................................................................................................. 64
Power Consumption and Maximum Junction Temperature ....................................................................................................................... 156
Thermal Data ............................................................................................................................................................................................. 156
List of Tables
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IDT82V3390 DATASHEET
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SYNCHRONOUS ETHERNET WAN PLL
Absolute Maximum Rating .........................................................................................................................................................................
Recommended Operation Conditions ........................................................................................................................................................
AMI Input / Output Port Electrical Characteristics ......................................................................................................................................
CMOS Input Port Electrical Characteristics ...............................................................................................................................................
CMOS Input Port with Internal Pull-Up Resistor Electrical Characteristics ................................................................................................
CMOS Input Port with Internal Pull-Down Resistor Electrical Characteristics ...........................................................................................
CMOS Output Port Electrical Characteristics ............................................................................................................................................
PECL Input / Output Port Electrical Characteristics ...................................................................................................................................
LVDS Input / Output Port Electrical Characteristics ...................................................................................................................................
Output Clock Jitter Generation - External T0 APLL Loop Filter .................................................................................................................
Output Clock Jitter Generation - External T0 APLL Loop Filter .................................................................................................................
Input/Output Clock Timing 1 ......................................................................................................................................................................
Output Clock Timing ..................................................................................................................................................................................
Datasheet
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158
158
160
161
161
161
161
163
164
166
169
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List of Figures
Datasheet
Figure 1. Functional Block Diagram ............................................................................................................................................................................ 11
Figure 2. Pin Assignment (Top View) .......................................................................................................................................................................... 12
Figure 3. Pre-Divider for An Input Clock ..................................................................................................................................................................... 22
Figure 4. Input Clock Activity Monitoring ..................................................................................................................................................................... 23
Figure 5. Hysteresis Frequency Monitoring ................................................................................................................................................................ 24
Figure 6. External Fast Selection ................................................................................................................................................................................ 26
Figure 7. Qualified Input Clocks for Automatic Selection ............................................................................................................................................ 27
Figure 8. T0 Selected Input Clock vs. DPLL Automatic Operating Mode ................................................................................................................... 33
Figure 9. T4 Selected Input Clock vs. DPLL Automatic Operating Mode ................................................................................................................... 34
Figure 10. APLL External Filter Components .............................................................................................................................................................. 40
Figure 11. On Target Frame Sync Input Signal Timing ............................................................................................................................................... 43
Figure 12. 0.5 UI Early Frame Sync Input Signal Timing ............................................................................................................................................. 43
Figure 13. 0.5 UI Late Frame Sync Input Signal Timing .............................................................................................................................................. 44
Figure 14. 1 UI Late Frame Sync Input Signal Timing ................................................................................................................................................. 44
Figure 15. Physical Connection Between Two Devices .............................................................................................................................................. 45
Figure 16. IDT82V3390 Power Decoupling Scheme ................................................................................................................................................... 47
Figure 17. Typical Application ...................................................................................................................................................................................... 48
Figure 18. EPROM Access Timing Diagram ............................................................................................................................................................... 51
Figure 19. Multiplexed Read Timing Diagram ............................................................................................................................................................. 52
Figure 20. Multiplexed Write Timing Diagram .............................................................................................................................................................. 53
Figure 21. Intel Read Timing Diagram ......................................................................................................................................................................... 55
Figure 22. Intel Write Timing Diagram ......................................................................................................................................................................... 56
Figure 23. Motorola Read Timing Diagram .................................................................................................................................................................. 57
Figure 24. Motorola Write Timing Diagram .................................................................................................................................................................. 58
Figure 25. Serial Read Timing Diagram (CLKE Asserted Low) ................................................................................................................................... 59
Figure 26. Serial Read Timing Diagram (CLKE Asserted High) .................................................................................................................................. 59
Figure 27. Serial Write Timing Diagram ....................................................................................................................................................................... 60
Figure 28. Definition of I2C Bus Timing ...................................................................................................................................................................... 61
Figure 29. I2C Slave Interface Supported Transactions ............................................................................................................................................. 61
Figure 30. JTAG Interface Timing Diagram ................................................................................................................................................................. 63
Figure 31. Assembly for Expose Pad thermal Release Path (Side View) ................................................................................................................. 157
Figure 32. 64 kHz + 8 kHz Signal Structure .............................................................................................................................................................. 159
Figure 33. 64 kHz + 8 kHz + 0.4 kHz Signal Structure .............................................................................................................................................. 159
Figure 34. 64 kHz + 8 kHz / 64 kHz + 8 kHz + 0.4 kHz Signal Input Level ................................................................................................................ 159
Figure 35. 64 kHz + 8 kHz / 64 kHz + 8 kHz + 0.4 kHz Signal Output Level ............................................................................................................. 159
Figure 36. AMI Input / Output Port Line Termination (Recommended) ..................................................................................................................... 160
Figure 37. Recommended PECL Input Port Line Termination .................................................................................................................................. 162
Figure 38. Recommended PECL Output Port Line Termination ................................................................................................................................ 162
Figure 39. Recommended LVDS Input Port Line Termination .................................................................................................................................. 164
Figure 40. Recommended LVDS Output Port Line Termination ................................................................................................................................ 164
Figure 41. Example of Single-Ended Signal to Drive Differential Input ..................................................................................................................... 165
Figure 42. Output Wander Generation (TDEV) ......................................................................................................................................................... 170
Figure 43. Output Wander Generation (MTIE) .......................................................................................................................................................... 170
Figure 44. Input / Output Clock Timing ...................................................................................................................................................................... 171
Figure 45. Output Clock Timing ................................................................................................................................................................................. 172
Figure 46. 100-Pin EQG Package Dimensions (a) (in Millimeters) ............................................................................................................................ 178
Figure 47. 100-Pin EQG Package Dimensions (b) (in Millimeters) ............................................................................................................................ 179
Figure 48. EQG100 Recommended Land Pattern with Exposed Pad (in Millimeters) .............................................................................................. 180
List of Figures
8
July 14, 2011
SYNCHRONOUS ETHERNET
WAN PLL
FEATURES
•
HIGHLIGHTS
•
•
•
Single PLL chip:
• Features 0.5 mHz to 560 Hz bandwidth
• Provides node clock for ITU-T G.8261/G.8262 Synchronous
Ethernet (SyncE)
• Exceeds GR-253-CORE and ITU-T G.813 jitter generation
requirements
• Provides node clocks for Cellular and WLL base-station (GSM
and 3G networks)
• Provides clocks for DSL access concentrators (DSLAM), especially for Japan TCM-ISDN network timing based ADSL equipments
• Provides clocks for 1 Gigabit and 10 Gigabit Ethernet applications
•
•
•
•
•
•
•
•
MAIN FEATURES
•
•
•
•
•
•
•
•
•
•
•
•
Provides an integrated single-chip solution for Synchronous Equipment Timing Source, including Stratum 3, Stratum 4E, Stratum 4,
SMC, EEC-Option 1 and EEC-Option 2 Clocks
Provides 156.25 MHz clock for 10 Gig Ethernet Application, with
less than 0.7 ps of RMS Phase Jitter (12 kHz - 20 MHz)
Employs PLL architecture to feature excellent jitter performance
and minimize the number of the external components
Integrates T0 DPLL and T4 DPLL; T4 DPLL locks independently or
locks to T0 DPLL
Supports Forced or Automatic operating mode switch controlled by
an internal state machine. It supports Free- Run, Locked and Holdover modes
Supports programmable DPLL bandwidth (0.5 mHz to 560 Hz in 19
steps) and damping factor (1.2 to 20 in 5 steps)
Supports 1.1X10-5 ppm absolute holdover accuracy and 4.4X10-8
ppm instantaneous holdover accuracy
Supports hitless reference switching to minimize phase transients
on T0 DPLL output to be no more than 0.61 ns
Supports phase absorption when phase-time changes on T0
selected input clock are greater than a programmable limit over an
interval of less than 0.1 seconds
Supports programmable input-to-output phase offset adjustment
Limits the phase and frequency offset of the outputs
Provides OUT1~OUT7 output clock frequencies covering from 2
kHz to 625MHz
• Includes 125 MHz and 156.25 MHz for CMOS outputs
• Includes 125 MHz, 156.25 MHz, 312.5 MHz and 625 MHz for differential outputs
•
Datasheet
IDT82V3390
Provides OUT8 for composite clocks and OUT9 for 1.544 MHz/
2.048 MHz (BITS/SSU)
Provides IN1 and IN2 for composite clocks
Provides IN3~IN14 input clock frequencies covering from 2 kHz to
625 MHz
• Includes 125 MHz and 156.25 MHz for CMOS inputs
• Includes 156.25 MHz, 312.5 MHz and 625 MHz for differential
inputs
Supports manual and automatic selected input clock switch
Supports automatic hitless selected input clock switch on clock failure
Supports three types of input clock sources: recovered clock from
STM-N or OC-n, PDH network synchronization timing and external
synchronization reference timing
Provides a 2 kHz, 4 kHz or 8 kHz frame sync input signal, and a 2
kHz and an 8 kHz frame sync output signals
Provides output clocks for BITS, GPS, 3G, GSM, etc.
Supports AMI, PECL/LVDS and CMOS input/output technologies
Supports master clock calibration
Supports Master/Slave application (two chips used together) to
enable system protection against single chip failure
Supports Telcordia GR-1244-CORE, Telcordia GR-253-CORE,
ITU-T G.812, ITU-T G.8262. ITU-T G.813 and ITU-T G.783 Recommendations
OTHER FEATURES
•
•
•
•
Multiple microprocessor interface modes: EPROM, Multiplexed,
Intel, Motorola, I2C and Serial
IEEE 1149.1 JTAG Boundary Scan
Single 3.3 V operation with 5 V tolerant CMOS I/Os
100-pin TQFP package, green package options available
APPLICATIONS
•
•
•
•
•
•
•
•
•
•
•
•
1 Gigabit Ethernet and 10 Gigabit Ethernet
BITS / SSU
SMC / SEC (SONET / SDH)
DWDM cross-connect and transmission equipment
Synchronous Ethernet equipment
Central Office Timing Source and Distribution
Core and access IP switches / routers
Gigabit and terabit IP switches / routers
IP and ATM core switches and access equipment
Cellular and WLL base-station node clocks
Broadband and multi-service access equipment
Any other telecom equipments that need synchronous equipment
system timing
IDT and the IDT logo are trademarks of Integrated Device Technology, Inc.
9
 2011 Integrated Device Technology, Inc.
July 14, 2011
DSC-7238/-
IDT82V3390 DATASHEET
SYNCHRONOUS ETHERNET WAN PLL
DESCRIPTION
the DPLL gives a stable performance without being affected by operating conditions or silicon process variations.
The IDT82V3390 is an integrated, single-chip solution for the Synchronous Equipment Timing Source for Stratum 3, Stratum 4E, Stratum
4, SMC, EEC-Option1, EEC-Option2 clocks in SONET / SDH / Synchronous Ethernet equipment, DWDM and Wireless base station.
If the DPLL outputs are processed by T0/T4 APLL, the outputs of the
device will be in a better jitter/wander performance.
The device supports three types of input clock sources: recovered
clock from STM-N or OC-n, PDH network synchronization timing and
external synchronization reference timing.
The device provides programmable DPLL bandwidths: 0.5 mHz to
560 Hz in 19 steps and damping factors: 1.2 to 20 in 5 steps. Different
settings cover all SONET / SDH clock synchronization requirements.
The device consists of T0 and T4 paths. The T0 path is a high quality
and highly configurable path to provide system clock for node timing
synchronization within a SONET / SDH / Synchronous Ethernet network.
The T4 path is simpler and less configurable for equipment synchronization. The T4 path locks independently from the T0 path or locks to the T0
path.
A high stable input is required for the master clock in different applications. The master clock is used as a reference clock for all the internal
circuits in the device. It can be calibrated within ±741 ppm.
All the read/write registers are accessed through a microprocessor
interface. The device supports six microprocessor interface modes:
EPROM, Multiplexed, Intel, Motorola, I2C and Serial.
An input clock is automatically or manually selected for T0 and T4
each for DPLL locking. Both the T0 and T4 paths support three primary
operating modes: Free-Run, Locked and Holdover. In Free-Run mode,
the DPLL refers to the master clock. In Locked mode, the DPLL locks to
the selected input clock. In Holdover mode, the DPLL resorts to the frequency data acquired in Locked mode. Whatever the operating mode is,
Description
In general, the device can be used in Master/Slave application. In
this application, two devices should be used together to enable system
protection against single chip failure. See Chapter 4 Typical Application
for details.
10
July 14, 2011
Functional Block Diagram
Priority
Input Pre-Divider
Input Pre-Divider
Input Pre-Divider
IN7
IN8
IN9
11
Selection
EX_SYNC1
Priority
Input Pre-Divider
Priority
Priority
Input Pre-Divider
Input Pre-Divider
Priority
Input Pre-Divider
IN11
IN12
IN13
IN14
Priority
Input Pre-Divider
IN10
Priority
Priority
Priority
Priority
Input Pre-Divider
Priority
Priority
Input Pre-Divider
Input Pre-Divider
Priority
Priority
Input Pre-Divider
Input Pre-Divider
Input Pre-Divider
IN3
IN4
IN5
IN6
IN1
IN2
Input
T0 Input
Selector
Monitors
T4 Input
Selector
Divider
T0 PFD
& LPF
MUX
T4 DPLL
OSCI
APLL
PBO
Phase Offset
T0 8 kHz
Divider
T4 PFD
& LPF
Microprocessor Interface
T0 DPLL
JTAG
Output
From T4
16E1/16T1
From T0
16E1/16T1
From T4
77.76 MHz
12
12
ETH
T0
APLL
T4
APLL
12
From T0
77.76 MHz
T0
APLL
MUX
T4
APLL
MUX
12
12
12
12E1/24T1/E3/T3
16E1/16T1
GSM/OBSAI/16E1/16T1
77.76 MHz
8 k Divider
T0 77.76 MHz
ETH
12E1/24T1/E3/T3
16E1/16T1
GSM/GPS/16E1/16T1
77.76 MHz
12
OUT9
MUX
OUT8
MUX
OUT7
MUX
OUT6
MUX
OUT5
MUX
OUT4
MUX
OUT3
MUX
OUT2
MUX
OUT1
MUX
OUT9
FRSYNC_8K
MFRSYNC_2K
Auto
Divider
Auto
Divider
OUT8
OUT7
OUT6
OUT5
OUT4
OUT3
OUT2
OUT1
Auto
Divider
Auto
Divider
Divider
Divider
Divider
Divider
Divider
Divider
Divider
IDT82V3390 DATASHEET
SYNCHRONOUS ETHERNET WAN PLL
FUNCTIONAL BLOCK DIAGRAM
Figure 1. Functional Block Diagram
July 14, 2011
IDT82V3390 DATASHEET
79
78
77
76
83
82
81
80
87
86
85
84
91
90
89
88
95
94
93
92
73
72
4
5
71
70
69
6
7
8
68
67
66
9
10
IDT82V3390
11
12
65
64
63
62
61
13
14
15
60
59
16
17
18
58
57
19
20
56
55
21
22
MPU_MODE0
MPU_MODE1
MPU_MODE2
IN14
IN13
IN12
IN11
IN10
IN9
IN8
49
50
47
48
46
45
41
42
43
44
40
37
38
39
36
RDY
RST
ALE/SCLK/I2C_SCL
RD/I2C_AD2
WR/I2C_AD1
CS/I2C_AD0
A0/SDI
A1/CLKE
A2
A3
A4
A5
A6
VSSD1
VDDD1
VDD_DIFF
OUT8_NEG
OUT8_POS
VSS_DIFF
FRSYNC_8K
MFRSYNC_2K
VSS_DIFF
VDD_DIFF
OUT6_POS
OUT6_NEG
OUT7_POS
OUT7_NEG
VSS_DIFF
VDD_DIFF
IN5_POS
IN5_NEG
IN6_POS
IN6_NEG
NC
EX_SYNC1
IN3
IN4
IN7
VSSD1
VDDD1
33
34
35
51
31
32
25
30
23
24
54
53
52
26
27
INT_REQ
TCK
OSCI
VSSA2
VDDA2
VDDA3
VSSA3
VSSA4
VDDA4
IC2
FF_SRCSW
VDDA5
VSSA5
TDO
VC0
TDI
IN1
IN2
75
74
1
2
3
28
29
VC4
IC1
VSSA1
VDDA1
TMS
99
98
97
96
100
VSSA
TRST
IC5
IC4
IC3
OUT9
OUT5
OUT4
VSSD2
VDDD2
OUT3
OUT2
OUT1
VSSD2
VDDD2
VDDD1
VSSD1
AD0/SDO/I2C_SDA
AD1
AD2
AD3
AD4
AD5
AD6
AD7
PIN ASSIGNMENT
SONET/SDH
MS/SL
1
SYNCHRONOUS ETHERNET WAN PLL
Figure 2. Pin Assignment (Top View)
Pin Assignment
12
July 14, 2011
IDT82V3390 DATASHEET
2
SYNCHRONOUS ETHERNET WAN PLL
PIN DESCRIPTION
Table 1: Pin Description
Name
Pin No.
I/O
Description 1, 2
Type
Global Control Signal
OSCI
10
I
CMOS
FF_SRCSW
18
I
pull-down
CMOS
MS/SL
99
I
pull-up
OSCI: Crystal Oscillator Master Clock
A nominal 12.8000 MHz clock provided by a crystal oscillator is input on this pin. It is the
master clock for the device.
FF_SRCSW: External Fast Selection Enable
During reset, this pin determines the default value of the EXT_SW bit (b4, 0BH) 2. The
EXT_SW bit determines whether the External Fast Selection is enabled.
High: The default value of the EXT_SW bit (b4, 0BH) is ‘1’ (External Fast selection is
enabled);
Low: The default value of the EXT_SW bit (b4, 0BH) is ‘0’ (External Fast selection is disabled).
After reset, this pin selects an input clock pair for the T0 DPLL if the External Fast selection is
enabled:
High: Pair IN3 / IN5 is selected.
Low: Pair IN4 / IN6 is selected.
After reset, the input on this pin takes no effect if the External Fast selection is disabled.
CMOS
MS/SL: Master / Slave Selection
This pin, together with the MS_SL_CTRL bit (b0, 13H), controls whether the device is configured as the Master or as the Slave. Refer to Chapter 3.14 Master / Slave Configuration for
details.
The signal level on this pin is reflected by the MASTER_SLAVE bit (b1, 09H).
SONET/SDH
100
I
pull-down
CMOS
SONET/SDH: SONET / SDH Frequency Selection
During reset, this pin determines the default value of the IN_SONET_SDH bit (b2, 09H):
High: The default value of the IN_SONET_SDH bit is ‘1’ (SONET);
Low: The default value of the IN_SONET_SDH bit is ‘0’ (SDH).
After reset, the value on this pin takes no effect.
RST
74
I
pull-up
CMOS
RST: Reset
A low pulse of at least 50 µs on this pin resets the device. After this pin is high, the device will
still be held in reset state for 500 ms (typical).
Frame Synchronization Input Signal
EX_SYNC1
45
I
pull-down
CMOS
EX_SYNC1: External Sync Input 1
A 2 kHz, 4 kHz or 8 kHz signal is input on this pin.
Input Clock
IN1
24
I
AMI
IN2
25
I
AMI
IN3
46
I
pull-down
CMOS
IN4
47
I
pull-down
CMOS
Pin Description
IN1: Input Clock 1
A 64 kHz + 8 kHz or 64 kHz + 8 kHz + 0.4 kHz composite clock is input on this pin.
IN2: Input Clock 2
A 64 kHz + 8 kHz or 64 kHz + 8 kHz + 0.4 kHz composite clock is input on this pin.
IN3: Input Clock 3
A 2 kHz, 4 kHz, N x 8 kHz 3, 1.544 MHz (SONET) / 2.048 MHz (SDH), 6.25 MHz, 6.48 MHz,
19.44 MHz, 25.92 MHz, 38.88 MHz, 51.84 MHz, 77.76 MHz, 155.52 MHz or 156.25 MHz
clock is input on this pin.
IN4: Input Clock 4
A 2 kHz, 4 kHz, N x 8 kHz 3, 1.544 MHz (SONET) / 2.048 MHz (SDH), 6.25 MHz, 6.48 MHz,
19.44 MHz, 25.92 MHz, 38.88 MHz, 51.84 MHz, 77.76 MHz, 155.52 MHz or 156.25 MHz
clock is input on this pin.
13
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IDT82V3390 DATASHEET
SYNCHRONOUS ETHERNET WAN PLL
Table 1: Pin Description (Continued)
Name
Pin No.
IN5_POS
40
IN5_NEG
41
IN6_POS
42
IN6_NEG
43
IN7
48
IN8
51
IN9
52
IN10
53
IN11
54
IN12
55
IN13
56
IN14
57
Pin Description
I/O
Description 1, 2
Type
IN5_POS / IN5_NEG: Positive / Negative Input Clock 5
A 2 kHz, 4 kHz, N x 8 kHz 3, 1.544 MHz (SONET) / 2.048 MHz (SDH), 6.25 MHz, 6.48 MHz,
19.44 MHz, 25.92 MHz, 38.88 MHz, 51.84 MHz, 77.76 MHz, 155.52 MHz, 156.25 MHz,
I
PECL/LVDS 311.04 MHz, 312.5 MHz, 622.08 MHz or 625 MHz clock is differentially input on this pair of
pins. Whether the clock signal is PECL or LVDS is automatically detected.
Single-ended input for differential input is also supported. Refer to Chapter 9.3.3.3 SingleEnded Input for Differential Input.
IN6_POS / IN6_NEG: Positive / Negative Input Clock 6
A 2 kHz, 4 kHz, N x 8 kHz 3, 1.544 MHz (SONET) / 2.048 MHz (SDH), 6.25 MHz, 6.48 MHz,
19.44 MHz, 25.92 MHz, 38.88 MHz, 51.84 MHz, 77.76 MHz, 155.52 MHz, 156.25 MHz,
I
PECL/LVDS 311.04 MHz or 312.5 MHz, 622.08 MHz or 625 MHz clock is differentially input on this pair of
pins. Whether the clock signal is PECL or LVDS is automatically detected.
Single-ended input for differential input is also supported. Refer to Chapter 9.3.3.3 SingleEnded Input for Differential Input.
IN7: Input Clock 7
I
A 2 kHz, 4 kHz, N x 8 kHz 3, 1.544 MHz (SONET) / 2.048 MHz (SDH), 6.25 MHz, 6.48 MHz,
CMOS
pull-down
19.44 MHz, 25.92 MHz, 38.88 MHz, 51.84 MHz, 77.76 MHz, 155.52 MHz or 156.25 MHz
clock is input on this pin.
IN8: Input Clock 8
I
A 2 kHz, 4 kHz, N x 8 kHz 3, 1.544 MHz (SONET) / 2.048 MHz (SDH), 6.25 MHz, 6.48 MHz,
CMOS
pull-down
19.44 MHz, 25.92 MHz, 38.88 MHz, 51.84 MHz, 77.76 MHz, 155.52 MHz or 156.25 MHz
clock is input on this pin.
IN9: Input Clock 9
I
A 12 kHz, 4 kHz, N x 8 kHz 3, 1.544 MHz (SONET) / 2.048 MHz (SDH), 6.25 MHz, 6.48 MHz,
CMOS
pull-down
19.44 MHz, 25.92 MHz, 38.88 MHz, 51.84 MHz, 77.76 MHz, 155.52 MHz or 156.25 MHz
clock is input on this pin.
IN10: Input Clock 10
I
A 2 kHz, 4 kHz, N x 8 kHz 3, 1.544 MHz (SONET) / 2.048 MHz (SDH), 6.25 MHz, 6.48 MHz,
CMOS
pull-down
19.44 MHz, 25.92 MHz, 38.88 MHz, 51.84 MHz, 77.76 MHz, 155.52 MHz or 156.25 MHz
clock is input on this pin.
IN11: Input Clock 11
A 2 kHz, 4 kHz, N x 8 kHz 3, 1.544 MHz (SONET) / 2.048 MHz (SDH), 6.25 MHz, 6.48 MHz,
I
19.44 MHz, 25.92 MHz, 38.88 MHz, 51.84 MHz, 77.76 MHz, 155.52 MHz or 156.25 MHz
CMOS
pull-down
clock is input on this pin.
In Slave operation, the frequency of the T0 selected input clock IN11 is recommended to be
6.48 MHz.
IN12: Input Clock 12
I
A 2 kHz, 4 kHz, N x 8 kHz 3, 1.544 MHz (SONET) / 2.048 MHz (SDH), 6.25 MHz, 6.48 MHz,
CMOS
pull-down
19.44 MHz, 25.92 MHz, 38.88 MHz, 51.84 MHz, 77.76 MHz, 155.52 MHz or 156.25 MHz
clock is input on this pin.
IN13: Input Clock 13
I
A 2 kHz, 4 kHz, N x 8 kHz 3, 1.544 MHz (SONET) / 2.048 MHz (SDH), 6.25 MHz, 6.48 MHz,
CMOS
pull-down
19.44 MHz, 25.92 MHz, 38.88 MHz, 51.84 MHz, 77.76 MHz, 155.52 MHz or 156.25 MHz
clock is input on this pin.
IN14: Input Clock 14
I
A 2 kHz, 4 kHz, N x 8 kHz 3, 1.544 MHz (SONET) / 2.048 MHz (SDH), 6.25 MHz, 6.48 MHz,
CMOS
pull-down
19.44 MHz, 25.92 MHz, 38.88 MHz, 51.84 MHz, 77.76 MHz, 155.52 MHz or 156.25 MHz
clock is input on this pin.
14
July 14, 2011
IDT82V3390 DATASHEET
SYNCHRONOUS ETHERNET WAN PLL
Table 1: Pin Description (Continued)
Name
Pin No.
I/O
Description 1, 2
Type
Output Frame Synchronization Signal
FRSYNC_8K
30
O
CMOS
MFRSYNC_2K
31
O
CMOS
FRSYNC_8K: 8 kHz Frame Sync Output
An 8 kHz signal is output on this pin.
MFRSYNC_2K: 2 kHz Multiframe Sync Output
A 2 kHz signal is output on this pin.
Output Clock
OUT1
88
OUT2
89
OUT3
90
OUT4
93
OUT5
94
OUT6_POS
34
OUT6_NEG
35
OUT7_POS
36
OUT7_NEG
37
OUT8_POS
28
OUT8_NEG
27
OUT9
95
O
CMOS
VC4
3
O
Analog
VC0
22
O
Analog
O
O
O
O
CMOS
OUT1 ~ OUT5: Output Clock 1 ~ 5
A 400 Hz, 2 kHz, 8 kHz, 64 kHz, N x E1 4, N x T1 5, N x 13.0 MHz 6, N x 3.84 MHz 7, 5 MHz,
10 MHz, 20 MHz, E3, T3, 6.48 MHz, 19.44 MHz, 25.92 MHz, 38.88 MHz, 51.84 MHz, 77.76
MHz, 25MHz, 125 MHz, 155.52 MHz or 156.25 Mhz clock is output on these pins.
OUT6_POS / OUT6_NEG: Positive / Negative Output Clock 6
A 400 Hz, 2 kHz, 8 kHz, 64 kHz, N x E1 4, N x T1 5, N x 13.0 MHz 6, N x 3.84 MHz 7, 5 MHz,
PECL/LVDS 10 MHz, 20 MHz, 25 MHz, E3, T3, 6.48 MHz, 19.44 MHz, 25.92 MHz, 38.88 MHz, 51.84
MHz, 77.76 MHz, 125 MHz, 155.52 MHz, 156.25 MHz, 311.04 MHz, 312.5 MHz, 622.08 MHz
or 625 MHz clock is differentially output on this pair of pins.
OUT7_POS / OUT7_NEG: Positive / Negative Output Clock 7
A 400 Hz, 2 kHz, 8 kHz, 64 kHz, N x E1 4, N x T1 5, N x 13.0 MHz 6, N x 3.84 MHz 7, 5 MHz,
PECL/LVDS 10 MHz, 20 MHz, 25 MHz, E3, T3, 6.48 MHz, 19.44 MHz, 25.92 MHz, 38.88 MHz, 51.84
MHz, 77.76 MHz, 125 MHz, 155.52 MHz, 156.25 MHz, 311.04 MHz, 312.5 MHz 622.08 MHz
or 625 MHz clock is differentially output on this pair of pins.
OUT8_POS / OUT8_NEG: Positive / Negative Output Clock 8
A 64 kHz + 8 kHz or 64 kHz + 8 kHz + 0.4 kHz composite clock is differentially output on this
AMI
pair of pins.
OUT9: Output Clock 9
A 1.544 MHz (SONET) / 2.048 MHz (SDH) BITS/SSU clock is output on this pin.
VC4: T4 APLL VC Output
An optional external RC filter can be connected to this pin. If the external RC filter is not
implemented then leave this pin unconnected.
For 10 Gigabit Ethernet application, it is recommended to use external filter for low bandwidth
options.
VC0: T0 APLL VC Output
An optional external RC filter can be connected to this pin. If the external RC filter is not
implemented then leave this pin unconnected.
For 10 Gigabit Ethernet application, it is recommended to use external filter for low bandwidth
options.
Microprocessor Interface
CS / I2C_AD0
INT_REQ
Pin Description
70
8
I/O
pull-up
O
CMOS
CMOS
CS: Chip Selection
In EPROM mode, this pin is an output. In Multiplexed, Intel, Motorola and Serial modes, this
pin is an input. A transition from high to low must occur on this pin for each read or write operation and this pin should remain low until the operation is over.
I2C_AD0: Device Address Bit 0
In I2C mode, I2C_AD[2:0] pins are the address bus of the microprocessor interface.
INT_REQ: Interrupt Request
This pin is used as an interrupt request. The output characteristics are determined by the
HZ_EN bit (b1, 0CH) and the INT_POL bit (b0, 0CH).
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IDT82V3390 DATASHEET
SYNCHRONOUS ETHERNET WAN PLL
Table 1: Pin Description (Continued)
Name
Pin No.
MPU_MODE0
60
MPU_MODE1
59
MPU_MODE2
58
A0 / SDI
69
A1 / CLKE
68
A2
67
A3
66
A4
65
A5
64
A6
63
AD0 / SDO /
I2C_SDA
83
AD1
AD2
AD3
AD4
AD5
AD6
AD7
Pin Description
I/O
I
pull-down
CMOS
I/O
pull-down
CMOS
78
77
SDI: Serial Data Input
In Serial mode, this pin is used as the serial data input. Address and data on this pin are serially clocked into the device on the rising edge of SCLK.
CLKE: SCLK Active Edge Selection
In Serial mode, this pin is an input, it selects the active edge of SCLK to update the SDO:
High - The falling edge;
Low - The rising edge.
In Multiplexed mode, A0/SDI, A1/CLKE and A[6:2] pins should be connected to ground.
In Serial mode, A[6:2] pins should be connected to ground.
See Table 33 for details.
AD[7:0]: Address / Data Bus
In EPROM, Intel and Motorola modes, these pins are the bi-directional data bus of the microprocessor interface.
In Multiplexed mode, these pins are the bi-directional address/data bus of the microprocessor interface.
81
79
MPU_MODE[2:0]: Microprocessor Interface Mode Selection
The device supports six microprocessor interface modes: EPROM, Multiplexed, Intel, Motorola, I2C, and Serial.
During reset, these pins determine the default value of the MPU_SEL_CNFG[2:0] bits (b2~0,
7FH) as follows:
001 (EPROM mode);
010 (Multiplexed mode);
011 (Intel mode);
100 (Motorola mode);
101 (Serial mode);
110 (I2C mode);
111 (Serial mode).
After reset, these pins are general purpose inputs. The microprocessor interface mode is
selected by the MPU_SEL_CNFG[2:0] bits (b2~0, 7FH).
After reset de-assertion, wait 10µs for the mode to be active.
The value of these pins is always reflected by the MPU_PIN_STS[2:0] bits (b2~0, 02H).
A[6:0]: Address Bus
In EPROM mode, these pins are outputs. They are the address bus of the EPROM interface.
Intel and Motorola modes, these pins are inputs, they are the address bus of the microprocessor interface.
82
80
Description 1, 2
Type
I/O
pull-down
CMOS
SDO: Serial Data Output
In Serial mode, this pin is used as the serial data output. Data on this pin is serially clocked
out of the device on the active edge of SCLK.
In Serial mode, AD[7:1] pins should be connected to ground.
I2C_SDA: Serial Data Input/Output
In I2C mode, this pin is used as the input/output for the serial data.
76
16
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IDT82V3390 DATASHEET
SYNCHRONOUS ETHERNET WAN PLL
Table 1: Pin Description (Continued)
Name
WR / I2C_AD1
Pin No.
71
I/O
I
pull-up
Description 1, 2
Type
CMOS
WR: Write Operation
In Multiplexed and Intel modes, this pin is asserted low to initiate a write operation.
In Motorola mode, this pin is asserted low to initiate a write operation or s asserted high to initiate a read operation.
In EPROM and Serial modes, this pin should be connected to ground.
I2C_AD1: Device Address Bit 1
In I2C mode, I2C_AD[2:0] pins are the address bus of the microprocessor interface.
RD / I2C_AD2
72
I
pull-up
CMOS
RD: Read Operation
In Multiplexed and Intel modes, this pin is asserted low to initiate a read operation.
In EPROM, Motorola and Serial modes, this pin should be connected to ground.
I2C_AD2: Device Address Bit 2
In I2C mode, I2C_AD[2:0] pins are the address bus of the microprocessor interface.
ALE: Address Latch Enable
In Multiplexed mode, the address on AD[7:0] pins is sampled into the device on the falling
edge of ALE.
ALE / SCLK /
I2C_SCL
73
I
pull-down
CMOS
SCLK: Shift Clock
In Serial mode, a shift clock is input on this pin.
Data on SDI is sampled by the device on the rising edge of SCLK. Data on SDO is updated
on the active edge of SCLK. The active edge is determined by the CLKE.
In EPROM, Intel and Motorola modes, this pin should be connected to ground.
RDY
75
O
CMOS
I2C_SCL: Serial Clock Line
In I2C mode, the serial clock is input on this pin.
RDY: Ready/Data Acknowledge
In Multiplexed and Intel modes, a high level on this pin indicates that a read/write cycle is
completed. A low level on this pin indicates that wait state must be inserted.
In Motorola mode, a low level on this pin indicates that valid information on the data bus is
ready for a read operation or acknowledges the acceptance of the written data during a write
operation.
In EPROM and Serial modes, this pin should be connected to ground.
JTAG (per IEEE 1149.1)
TRST
2
I
pull-down
CMOS
TMS
7
I
pull-up
CMOS
TCK
9
I
pull-down
CMOS
TDI
23
I
pull-up
CMOS
TDO
21
O
CMOS
Pin Description
TRST: JTAG Test Reset (Active Low)
A low signal on this pin resets the JTAG test port.
This pin should be connected to ground when JTAG is not used.
TMS: JTAG Test Mode Select
The signal on this pin controls the JTAG test performance and is sampled on the rising edge
of TCK.
TCK: JTAG Test Clock
The clock for the JTAG test is input on this pin. TDI and TMS are sampled on the rising edge
of TCK and TDO is updated on the falling edge of TCK.
If TCK is idle at a low level, all stored-state devices contained in the test logic will indefinitely
retain their state.
TDI: JTAG Test Data Input
The test data are input on this pin. They are clocked into the device on the rising edge of
TCK.
TDO: JTAG Test Data Output
The test data are output on this pin. They are clocked out of the device on the falling edge of
TCK. TDO pin outputs a high impedance signal except during the process of data scanning.
This pin can indicate the interrupt of T0 selected input clock fail, as determined by the
LOS_FLAG_ON_TDO bit (b6, 0BH). Refer to Chapter 3.8.1 Input Clock Validity for details.
17
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IDT82V3390 DATASHEET
SYNCHRONOUS ETHERNET WAN PLL
Table 1: Pin Description (Continued)
Name
Pin No.
I/O
Description 1, 2
Type
Power & Ground
VDDD1
VDDD2
VDD_DIFF
VSSD1
VSSD2
VSS_DIFF
VSSA
VSSA1
50, 61, 85
86, 91
26, 33, 39
49, 62, 84
87, 92
32, 38, 29
1
5
VSSA2
11
VSSA3
14
VSSA4
15
VSSA5
VDDA1
20
6
VDDA2
12
VDDA3
13
VDDA4
16
VDDA5
19
Power
Power
Power
Ground
Ground
Ground
Ground
-
Ground
-
VDDD1: Digital Core Power.
VDDD2: CMOS CLK Output Power
VDD_DIFF1: Differential I/O Power Supply
VSSD1: Digital Core Ground
VSSD2: CMOS CLK Output Ground
VSS_DIFF: Differential I/O Ground
VSSA: Common Ground
VSSAn: T4 & T0 APLL Ground
VDDAn: T4 & T0 APLL Power
Power
-
Others
IC1
4
IC2
17
IC3
96
IC4
97
IC5
NC
98
44
IC: Internal Connected
Internal Use. These pins should be left open for normal operation.
-
-
-
-
NC: Not Connected
Note:
1. All the unused input pins should be connected to ground; the output of all the unused output pins are don’t-care.
2. The contents in the brackets indicate the position of the register bit/bits.
3. N x 8 kHz: 1 < N < 19440.
4. N x E1: N = 1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64.
5. N x T1: N = 1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96.
6. N x 13.0 MHz: N = 1, 2, 4.
7. N x 3.84 MHz: N = 1, 2, 4, 8, 16, 10, 20, 40.
Pin Description
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July 14, 2011
IDT82V3390 DATASHEET
SYNCHRONOUS ETHERNET WAN PLL
3
FUNCTIONAL DESCRIPTION
3.2
3.1
RESET
A nominal 12.8000 MHz clock, provided by a crystal oscillator, is
input on the OSCI pin. This clock is provided for the device as a master
clock. The master clock is used as a reference clock for all the internal
circuits. A better active edge of the master clock is selected by the
OSC_EDGE bit to improve jitter and wander performance.
The reset operation resets all registers and state machines to their
default value or status.
After power on, the device must be reset for normal operation.
MASTER CLOCK
In fact, an offset from the nominal frequency may be input on the
OSCI pin. This offset can be compensated by setting the
NOMINAL_FREQ_VALUE[23:0] bits. The calibration range is within
±741 ppm.
For a complete reset, the RST pin must be asserted low for at least
50 µs. After the RST pin is pulled high, the device will still be in reset
state for 500 ms (typical). If the RST pin is held low continuously, the
device remains in reset state.
The crystal oscillator should be chosen accordingly to meet GR1244-CORE, GR-253-CORE, ITU-T G.8262, ITU-T G.812 and ITU-T
G.813.
Table 2: Related Bit / Register in Chapter 3.2
Bit
Register
Address (Hex)
NOMINAL_FREQ_VALUE[23:0]
OSC_EDGE
NOMINAL_FREQ[23:16]_CNFG, NOMINAL_FREQ[15:8]_CNFG, NOMINAL_FREQ[7:0]_CNFG
DIFFERENTIAL_IN_OUT_OSCI_CNFG
06, 05, 04
0A
Functional Description
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July 14, 2011
IDT82V3390 DATASHEET
3.3
SYNCHRONOUS ETHERNET WAN PLL
INPUT CLOCKS & FRAME SYNC SIGNAL
For SDH and SONET networks, the default frequency is different.
SONET / SDH frequency selection is controlled by the IN_SONET_SDH
bit. During reset, the default value of the IN_SONET_SDH bit is determined by the SONET/SDH pin: high for SONET and low for SDH. After
reset, the input signal on the SONET/SDH pin takes no effect.
Altogether 14 clocks and 1 frame sync signal are input to the device.
3.3.1
INPUT CLOCKS
The device provides 14 input clock ports.
IDT82V3390 supports single-ended input for differential input. Refer
to Chapter 9.3.3.3 Single-Ended Input for Differential Input.
According to the input port technology, the input ports support the following technologies:
• AMI
• PECL/LVDS
• CMOS
3.3.2
A 2 kHz, 4 kHz or 8 kHz frame sync signal is input on the EX_SYNC1
pin. It is a CMOS input. The input frequency should match the setting in
the SYNC_FREQ[1:0] bits.
The IDT82V3390 supports Telecom and Ethernet frequencies from 2
kHz up to 625 MHz. It supports 2 kHz, 4 kHz, N x 8 kHz, 1.544 MHz
(SONET) / 2.048 MHz (SDH), 6.25 MHz, 6.48 MHz, 19.44 MHz, 25.92
MHz, 38.88 MHz, 51.84 MHz, 77.76 MHz, 155.52 MHz, 156.25 MHz,
312.5 MHz and 625 MHz frequencies.
The frame sync input signal is used for frame sync output signal synchronization. Refer to Chapter 3.13.2 Frame SYNC Output Signals for
details.
Table 3: Related Bit / Register in Chapter 3.3
IN1 and IN2 support the AMI input signal only and the clock source is
from T3. The input clock is a 64 kHz + 8 kHz or 64 kHz + 8 kHz + 0.4
kHz composite clock. The 400HZ_SEL bit should be set to match the
input frequency. Any input violation that does not meet the standard
composite clock structure will induce an AMI violation. The AMI violation
is indicated by the AMI1_VIOL 1 / AMI2_VIOL 1 bit. If the AMI1_VIOL 2 /
AMI2_VIOL 2 bit is ‘1’, the occurrence of an AMI violation will trigger an
interrupt.
Bit
Register
Address (Hex)
400HZ_SEL
IN1_CNFG
IN2_CNFG
14
15
INTERRUPT3_STS
0F
INTERRUPTS3_ENABLE_CNFG
12
INPUT_MODE_CNFG
09
AMI1_VIOL 1
AMI2_VIOL 1
AMI1_VIOL 2
AMI2_VIOL 2
IN_SONET_SDH
SYNC_FREQ[1:0]
IN3, IN4 and IN7 ~ IN14 support CMOS input signal only and the
clock sources can be from T1, T2 or T3.
IN5 and IN6 support PECL/LVDS input signal and automatically
detect whether the signal is PECL or LVDS. The clock sources can be
from T1, T2 or T3.
Functional Description
FRAME SYNC INPUT SIGNALS
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3.4
SYNCHRONOUS ETHERNET WAN PLL
When the DivN Divider is used for INn (3 ≤ n ≤ 14), the division factor
setting should observe the following order:
1. Select an input clock by the PRE_DIV_CH_VALUE[3:0] bits;
2. Write the lower eight bits of the division factor to the
PRE_DIVN_VALUE[7:0] bits;
3. Write the higher eight bits of the division factor to the
PRE_DIVN_VALUE[14:8] bits.
INPUT CLOCK PRE-DIVIDER
Each input clock is assigned an internal Pre-Divider. The Pre-Divider
is used to divide the clock frequency down to the internal DPLL's
required input frequency, which is no more than 38.88 MHz.
For IN1 and IN2, the DPLL required frequency is fixed to 8 kHz (i.e.,
the corresponding IN_FREQ[3:0] bits are ‘0000’). The 8 kHz clock is
extracted from the composite clock and the Pre-Divider is bypassed
automatically.
Once the division factor is set for the input clock selected by the
PRE_DIV_CH_VALUE[3:0] bits, it is valid until a different division factor
is set for the same input clock. The division factor is calculated as follows:
For IN3 ~ IN14, the DPLL required frequency is set by the corresponding IN_FREQ[3:0] bits.
Each Pre-Divider consists of a DivN Divider and a Lock 8k Divider,.
IN5 and IN6 also include a HF (High Frequency) Divider. Figure 3 shows
a block diagram of the pre-dividers for an input clock and Table 4 shows
the Pre-Divider Functions.
Division Factor = (the frequency of the clock input to the DivN
Divider ÷ the frequency of the DPLL required clock set by the
IN_FREQ[3:0] bits) - 1
The DivN Divider can only divide the input clock whose frequency is
less than or equal to (≤) 155.52 MHz.
When the Lock 8k Divider is used, the input clock is divided down to
8 kHz internally; the PRE_DIVN_VALUE [14:0] bits are not required.
Lock 8k Divider can be used for 1.544 MHz, 2.048 MHz, 6.48 MHz,
19.44 MHz, 25.92 MHz or 38.88 MHz input clock frequency and the corresponding IN_FREQ[3:0] bits should be set to match the input frequency.
The Pre-Divider configuration and the division factor setting depend
on the input clock on one of the IN3 ~ IN14 pins and the DPLL required
clock. Here is an example:
The input clock on the IN6 pin is 622.08 MHz; the DPLL required
clock is 6.48 MHz by programming the IN_FREQ[3:0] bits of register IN6
to ‘0010’. Do the following step by step to divide the input clock:
1. Use the HF Divider to divide the clock down to 155.52 MHz:
622.08 ÷ 155.52 = 4, so set the IN6_DIV[1:0] bits to ‘01’;
2. Use the DivN Divider to divide the clock down to 6.48 MHz:
Set the PRE_DIV_CH_VALUE[3:0] bits to ‘0110’;
Set the DIRECT_DIV bit in Register IN6_CNFG to ‘1’ and the
LOCK_8K bit in Register IN6_CNFG to ‘0’;
155.52 ÷ 6.48 = 24; 24 - 1 = 23, so set the
PRE_DIVN_VALUE[14:0] bits to ‘10111’.
For 2 kHz, 4 kHz or 8 kHz input clock frequency only, the Pre-Divider
should be bypassed by setting IN5_DIV[1:0] bits / IN6_DIV[1:0] bits = 0,
DIRECT_DIV bit = 0, and LOCK_8K bit = 0. The corresponding
IN_FREQ[3:0] bits should be set to match the input frequency. The input
clock can be inverted, as determine by the IN_2K_4K_8K_INV bit.
The HF Divider, which is only available for IN5 and IN6, should be
used when the input clock is higher than (>) 155.52 MHz. The input
clock can be divided by 4, 5 or can bypass the HF Divider, as determined by the IN5_DIV[1:0]/IN6_DIV[1:0] bits correspondingly.
Either the DivN Divider or the Lock 8k Divider can be used or both
can be bypassed, as determined by the DIRECT_DIV bit and the
LOCK_8K bit.
Functional Description
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SYNCHRONOUS ETHERNET WAN PLL
Pre-Divider
LOCK_8K bit
DIRECT_DIV bit
IN5_DIV[1:0] bits / IN6_DIV[1:0] bits
00
Input Clock INn
(3 ≤ n ≤ 14)
HF Divider
(for IN5 & IN6 only)
1
Lock 8k Divider
0
DivN Divider
2=<N<19440
10 DPLL clock
01
Figure 3. Pre-Divider for An Input Clock
Table 4: Pre-Divider Function
Pre-Divider
Input Clock INn frequency
HF- Divider2
>155.52 MHz
Divider Bypassed
2 kHz, 4 kHz, 8 kHz, 1.544 MHz, 2.048
MHz, 6.48 MHz, 19.44 MHz, 25.92 MHz or
38.88 MHz
Lock 8K Divider
1.544 MHz, 2.048 MHz, 6.48 MHz, 19.44
MHz, 25.92 MHz or 38.88 MHz
Control Register
IN5_DIV[1:0]
IN6_DIV[1:0]
IN_FREQ[3:0] – set to match input Clock INn frequency.
LOCK_8K= 0’b; DIRECT_DIV= 0’b (Bypass Dividers)
IN_FREQ[3:0] – set to match input Clock INn frequency.
LOCK_8K= 1’b; DIRECT_DIV= 0’b (select Lock 8k Divider)
LOCK_8K= 0’b; DIRECT_DIV= 1’b (select DivN Divider)
IN_FREQ[3:0] – set to the DPLL required frequency.
(‘0000’: 8 kHz (default))
Nx8kHz
(2 ≤ N ≤ 19440)
PRE_DIV_CH_VALUE[3:0]
PRE_DIVN_VALUE[14:0]
DivN
Example:
25 MHz = 3125 x 8 kHz
Example:
25 MHz = 3125 x 8kHz
Division Factor = 3125 -1= 3124 Dec (or 0C34h)
PRE_DIVN_VALUE[7:0]= 34h
PRE_DIVN_VALUE[14:8]= 0Ch
Register/ Address1
IN5_IN6_HF_DIV_CNFG (18)
IN3_CNFG ~ IN14_CNFG
(16 ~ 17, 19 ~ 22)
IN3_CNFG ~ IN14_CNFG
(16 ~ 17, 19 ~ 22)
IIN3_CNFG ~ IN14_CNFG
(16 ~ 17, 19 ~ 22)
PRE_DIV_CH_CNFG (23)
PRE_DIVN[14:8]_CNFG (25),
PRE_DIVN[7:0]_CNFG (24)
Note 1: Please see register description for details.
Note 2: For 156.25 MHz, 312.5 MHz and 625 MHz differential input clock frequency, the divider mode should be DivN with IN_FREQ[3:0] = ‘1100’: 6.25 MHz.
Functional Description
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IDT82V3390 DATASHEET
3.5
SYNCHRONOUS ETHERNET WAN PLL
INPUT CLOCK QUALITY MONITORING
Each input clock is assigned an internal leaky bucket accumulator.
The input clock is monitored for each period of 128 ms and the internal
leaky bucket accumulator increases by 1 when an event is detected; it
decreases by 1 if no event is detected within the period set by the decay
rate. The event is that an input clock drifts outside (>) ±500 ppm with
respect to the master clock within a 128 ms period.
The qualities of all the input clocks are always monitored in the following aspects:
• LOS (loss of signal) (only for IN1 and IN2)
• Activity
• Frequency
There are four configurations (0 - 3) for a leaky bucket accumulator.
The leaky bucket configuration for an input clock is selected by the corresponding BUCKET_SEL[1:0] bits. Each leaky bucket configuration
consists of four elements: upper threshold, lower threshold, bucket size
and decay rate.
LOS monitoring is only conducted on IN1 and IN2. Activity and frequency monitoring are conducted on all the input clocks.
The qualified clocks are available for T0/T4 DPLL selection. The T0
and T4 selected input clocks have to be monitored further. Refer to
Chapter 3.7 Selected Input Clock Monitoring for details.
3.5.1
The bucket size is the capability of the accumulator. If the number of
the accumulated events reach the bucket size, the accumulator will stop
increasing even if further events are detected. The upper threshold is a
point above which a no-activity alarm is raised. The lower threshold is a
point below which the no-activity alarm is cleared. The decay rate is a
certain period during which the accumulator decreases by 1 if no event
is detected.
LOS MONITORING
IN1 and IN2 support the AMI input signal. LOS monitoring is conducted on IN1 and IN2. A LOS event occurs when the amplitude of the
input clock falls below +0.6 Vp-p for 1 ms; the LOS event is cleared
when the amplitude rises higher than +1 Vp-p.
LOS status is indicated by the AMI1_LOS 1 / AMI2_LOS 1 bit. If the
AMI1_LOS 2 / AMI2_LOS 2 bit is ‘1’, the occurrence of LOS will trigger
an interrupt.
The leaky bucket configuration is programmed by one of four groups
of register bits: the BUCKET_SIZE_n_DATA[7:0] bits, the UPPER_
THRESHOLD_n_DATA[7:0] bits, the LOWER_THRESHOLD_n_
DATA[7:0] bits and the DECAY_RATE_n_DATA[1:0] bits respectively; ‘n’
is 0 ~ 3.
The input clock in LOS status is disqualified for clock selection for T0/
T4 DPLL.
3.5.2
The no-activity alarm status of the input clock is indicated by the
INn_NO_ACTIVITY_ALARM bit (14 ≥ n ≥ 1).
ACTIVITY MONITORING
Activity is monitored by using an internal leaky bucket accumulator,
as shown in Figure 4.
The input clock with a no-activity alarm is disqualified for clock selection for T0/T4 DPLL.
clock signal with events
clock signal with no event
Input Clock
Decay
Rate
Bucket Size
Upper Threshol
Leaky Bucket Accumulator
Lower Threshol
0
No-activity Alarm Indication
Figure 4. Input Clock Activity Monitoring
Functional Description
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IDT82V3390 DATASHEET
3.5.3
SYNCHRONOUS ETHERNET WAN PLL
between frequency monitoring, refer to Figure 5. Hysteresis Frequency
Monitoring
FREQUENCY MONITORING
Frequency is monitored by comparing the input clock with a reference clock. The reference clock can be derived from the master clock or
the output of T0 DPLL, as determined by the FREQ_MON_CLK bit.
The soft alarm is indicated by the INn_FREQ_SOFT_ALARM bit (14
≥ n ≥ 1) in the same way as hard alarm.
If the FREQ_MON_HARD_EN bit is ‘1’, the frequency alarm status of
the input clock is indicated by the INn_FREQ_HARD_ALARM bit (14 ≥ n
≥ 1). When the FREQ_MON_HARD_EN bit is ‘0’, no frequency hard
alarm is raised even if the input clock is above the frequency alarm
threshold.
Each reference clock has a hard frequency monitor and a soft frequency monitor. Both monitors have two thresholds, rejecting threshold
and accepting threshold, which are set in
HARD_FREQ_MON_THRESHOLD[7:0] and
SOFT_FREQ_MON_THRESHOLD[7:0]. So four frequency alarm
thresholds are set for frequency monitoring: Hard Alarm Accepting
Threshold, Hard Alarm Rejecting Threshold, Soft Alarm Accepting
Threshold and Soft Alarm Rejecting Threshold.
The input clock with a frequency hard alarm is disqualified for clock
selection for T0/T4 DPLL, but the soft alarm doesn’t affect the clock
selection for T0/T4 DPLL.
The frequency hard alarm accepting threshold can be calculated as
follows:
Frequency Hard Alarm Accepting
(HARD_FREQ_MON_THRESHOLD[7:4]
FREQ_MON_FACTOR[3:0] (b3~0, 2EH)
Threshold (ppm)
+
1)
In addition, if the input clock is 2 kHz, 4 kHz or 8 kHz, its clock edges
with respect to the reference clock are monitored. If any edge drifts outside ±5%, the input clock is disqualified for clock selection for T0/T4
DPLL. The input clock is qualified if any edge drifts inside ±5%. This
function is supported only when the IN_NOISE_WINDOW bit is ‘1’.
=
X
The frequency hard alarm rejecting threshold can be calculated as
follows:
Frequency Hard Alarm Rejecting
(HARD_FREQ_MON_THRESHOLD[3:0]
FREQ_MON_FACTOR[3:0] (b3~0, 2EH)
Threshold (ppm)
+
1)
The frequency of each input clock with respect to the reference clock
can be read by doing the following step by step:
1. Select an input clock by setting the IN_FREQ_READ_CH[3:0]
bits;
2. Read the value in the IN_FREQ_VALUE[7:0] bits and calculate
as follows:
=
X
When the input clock frequency rises to above the hard alarm rejecting threshold, the INn_FREQ_HARD_ALARM bit (14 ≥ n ≥ 1) will alarm
and indicate ‘1’. The alarm will remain until the frequency is down to
below the hard alarm accepting threshold, then the
INn_FREQ_HARD_ALARM bit will return to ‘0’. There is a hysteresis
Input Clock Frequency (ppm) = IN_FREQ_VALUE[7:0] X
FREQ_MON_FACTOR[3:0]
Note that the value set by the FREQ_MON_FACTOR[3:0] bits
depends on the application.
Rejecting threshold
Accepting threshold
rejected (alarmed)
accepted
accepted
Figure 5. Hysteresis Frequency Monitoring
Functional Description
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IDT82V3390 DATASHEET
SYNCHRONOUS ETHERNET WAN PLL
Table 5: Related Bit / Register in Chapter 3.5
Bit
Register
Address (Hex)
INTERRUPTS3_STS
0F
INTERRUPTS3_ENABLE_CNFG
12
BUCKET_SIZE_0_CNFG ~ BUCKET_SIZE_3_CNFG
UPPER_THRESHOLD_0_CNFG ~ UPPER_THRESHOLD_3_CNFG
LOWER_THRESHOLD_0_CNFG ~ LOWER_THRESHOLD_3_CNFG
DECAY_RATE_0_CNFG ~ DECAY_RATE_3_CNFG
IN1_CNFG ~ IN14_CNFG
33, 37, 3B, 3F
31, 35, 39, 3D
32, 36, 3A, 3E
34, 38, 3C, 40
14 ~ 17, 19 ~ 22
IN1_IN2_STS ~ IN13_IN14_STS
43 ~ 49
MON_SW_HS_CNFG
0B
HARD_FREQ_MON_THRESHOLD_CNFG
SOFT_FREQ_MON_THRESHOLD_CNFG
FREQ_MON_FACTOR_CNFG
PHASE_MON_CNFG
IN_FREQ_READ_CH_CNFG
IN_FREQ_READ_STS
2F
30
2E
78
41
42
AMI1_LOS 1
AMI2_LOS 1
AMI1_LOS 2
AMI2_LOS 2
BUCKET_SIZE_n_DATA[7:0] (3 ≥ n ≥ 0)
UPPER_THRESHOLD_n_DATA[7:0] (3 ≥ n ≥ 0)
LOWER_THRESHOLD_n_DATA[7:0] (3 ≥ n ≥ 0)
DECAY_RATE_n_DATA[1:0] (3 ≥ n ≥ 0)
BUCKET_SEL[1:0]
INn_NO_ACTIVITY_ALARM (14 ≥ n ≥ 1)
INn_FREQ_HARD_ALARM (14 ≥ n ≥ 1)
INn_FREQ_SOFT_ALARM (14 ≥ n ≥ 1)
FREQ_MON_CLK
FREQ_MON_HARD_EN
HARD_FREQ_MON_THRESHOLD[7:0]
SOFT_FREQ_MON_THRESHOLD[7:0]
FREQ_MON_FACTOR[3:0]
IN_NOISE_WINDOW
IN_FREQ_READ_CH[3:0]
IN_FREQ_VALUE[7:0]
Functional Description
25
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IDT82V3390 DATASHEET
3.6
SYNCHRONOUS ETHERNET WAN PLL
T0 / T4 DPLL INPUT CLOCK SELECTION
The selected input clock is attempted to be locked in T0/T4 DPLL.
3.6.1
An input clock is selected for T0 DPLL and for T4 DPLL respectively.
The External Fast selection is supported by T0 path only. In External
Fast selection, only IN3/IN5 and IN4/IN6 pairs are available for selection. Refer to Figure 6. The results of input clocks quality monitoring
(refer to Chapter 3.5 Input Clock Quality Monitoring) do not affect input
clock selection.
For T0 path, the EXT_SW bit and the T0_INPUT_SEL[3:0] bits determine the input clock selection, as shown in Table 6:
Table 6: Input Clock Selection for T0 Path
Control Bits
EXT_SW
T0_INPUT_SEL[3:0]
1
don’t-care
other than 0000
0000
0
EXTERNAL FAST SELECTION (T0 ONLY)
Input Clock Selection
The T0 input clock selection is determined by the FF_SRCSW pin
after reset (this pin determines the default value of the EXT_SW bit during reset, refer to Chapter 2 Pin Description), the
IN3_SEL_PRIORITY[3:0] bits and the IN4_SEL_PRIORITY[3:0] bits, as
shown in Figure 6 and Table 8:
External Fast selection
Forced selection
Automatic selection
For T4 path, the T4 DPLL may lock to a T0 DPLL output or lock independently from T0 path, as determined by the T4_LOCK_T0 bit. When
the T4 DPLL locks to the T0 DPLL output, the T4 selected input clock is
a 77.76 MHz or 8 kHz signal from the T0 DPLL 77.76 MHz path (refer to
Chapter 3.11.5.1 T0 Path), as determined by the T0_FOR_T4 bit. When
the T4 path locks independently from the T0 path, the T4 DPLL input
clock selection is determined by the T4_INPUT_SEL[3:0] bits. Refer to
Table 7:
IN3_SEL_PRIORITY[3:0] bits
FF_SRCSW pin
IN3
IN5
attempted to be
locked in T0 DPL
Table 7: Input Clock Selection for T4 Path
IN4
Control Bits - T4_INPUT_SEL[3:0]
Input Clock Selection
other than 0000
0000
Forced selection
Automatic selection
IN6
External Fast selection is done between IN3/IN5 and IN4/IN6 pairs.
IN4_SEL_PRIORITY[3:0] bits
Forced selection is done by setting the related registers.
Figure 6. External Fast Selection
Automatic selection is done based on the results of input clocks quality monitoring and the related registers configuration.
Table 8: External Fast Selection
Control Pin & Bits
FF_SRCSW (after reset)
IN3_SEL_PRIORITY[3:0]
IN4_SEL_PRIORITY[3:0]
high
0000
other than 0000
don’t-care
low
don’t-care
0000
other than 0000
Functional Description
26
the Selected Input Clock
IN5
IN3
IN6
IN4
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IDT82V3390 DATASHEET
3.6.2
SYNCHRONOUS ETHERNET WAN PLL
depends on the results of input clock quality monitoring (refer to
Chapter 3.5 Input Clock Quality Monitoring). Locking allowance is configured by the corresponding INn_VALID bit(14 ≥ n ≥ 1). Refer to
Figure 7. In all the qualified input clocks, the one with the highest priority
is selected. The priority is set by the corresponding
INn_SEL_PRIORITY[3:0] bits (14 ≥ n ≥ 1). If more than one qualified
input clock INn is available and has the same priority, the input clock
with the smallest ‘n’ is selected.
FORCED SELECTION
In Forced selection, the selected input clock is set by the
T0_INPUT_SEL[3:0] / T4_INPUT_SEL[3:0] bits. The results of input
clocks quality monitoring (refer to Chapter 3.5 Input Clock Quality Monitoring) do not affect the input clock selection.
3.6.3
AUTOMATIC SELECTION
In Automatic selection, the input clock selection is determined by its
validity, priority and locking allowance configuration. The validity
Validity
Priority
No
Locking Allowance
No
No
INn_SEL_PRIORITY[3:0]
'0000', (14 > n > 1)
Input Clock Quality Monitoring
(LOS, Activity, Frequency)
INn = '1', (14 > n > 1)
INn_VALID = '0',
(14 > n > 1)
Yes
Yes
Yes
All qualified input clocks are available for Automatic selection
Figure 7. Qualified Input Clocks for Automatic Selection
Table 9: Related Bit / Register in Chapter 3.6
Bit
Register
Address (Hex)
EXT_SW
T0_INPUT_SEL[3:0]
T4_LOCK_T0
T0_FOR_T4
T4_INPUT_SEL[3:0]
MON_SW_HS_CNFG
T0_INPUT_SEL_CNFG
0B
50
T4_INPUT_SEL_CNFG
51
IN1_IN2_SEL_PRIORITY_CNFG ~
IN13_IN14_SEL_PRIORITY_CNFG
REMOTE_INPUT_VALID1_CNFG,
REMOTE_INPUT_VALID2_CNFG
INPUT_VALID1_STS, INPUT_VALID2_STS
T4_T0_REG_SEL_CNFG
INn_SEL_PRIORITY[3:0] (14 ≥ n ≥ 1)
INn_VALID (14 ≥ n ≥ 1)
INn (14 ≥ n ≥ 1)
T4_T0_SEL
26 ~ 2C *
4C, 4D
4A, 4B
07
Note: * The setting in the 26 ~ 2C registers is either for T0 path or for T4 path, as determined by the T4_T0_SEL bit.
Functional Description
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IDT82V3390 DATASHEET
3.7
SYNCHRONOUS ETHERNET WAN PLL
SELECTED INPUT CLOCK MONITORING
3.7.1.3
The T0/T4 DPLL compares the selected input clock with the feedback signal. If the phase-compared result exceeds the fine phase limit
programmed by the PH_LOS_FINE_LIMT[2:0] bits, a fine phase loss is
triggered. It is cleared once the phase-compared result is within the fine
phase limit.
The quality of the selected input clock is always monitored (refer to
Chapter 3.5 Input Clock Quality Monitoring) and the DPLL locking status
is always monitored.
3.7.1
T0 / T4 DPLL LOCKING DETECTION
The following events are always monitored:
• Fast Loss;
• Coarse Phase Loss;
• Fine Phase Loss;
• Hard Limit Exceeding.
3.7.1.1
The occurrence of the fine phase loss will result in T0/T4 DPLL
unlocked if the FINE_PH_LOS_LIMT_EN bit is ‘1’.
3.7.1.4
A fast loss is triggered when the selected input clock misses 2 consecutive clock cycles. It is cleared once an active clock edge is detected.
For T0 path, the occurrence of the fast loss will result in T0 DPLL
unlocked if the FAST_LOS_SW bit is ‘1’. For T4 path, the occurrence of
the fast loss will result in T4 DPLL unlocked regardless of the
FAST_LOS_SW bit.
Coarse Phase Loss
The DPLL soft limit is set by the DPLL_FREQ_SOFT_LIMT[6:0] bits
and can be calculated as follows:
The T0/T4 DPLL compares the selected input clock with the feedback signal. If the phase-compared result exceeds the coarse phase
limit, a coarse phase loss is triggered. It is cleared once the phase-compared result is within the coarse phase limit.
DPLL Soft Limit (ppm) = DPLL_FREQ_SOFT_LIMT[6:0] X 0.724
The DPLL hard limit is set by the DPLL_FREQ_HARD_LIMT[15:0]
bits and can be calculated as follows:
When the selected input clock is of 2 kHz, 4 kHz or 8 kHz, the coarse
phase limit depends on the MULTI_PH_8K_4K_2K_EN bit, the
WIDE_EN bit and the PH_LOS_COARSE_LIMT[3:0] bits. Refer to
Table 10. When the selected input clock is of other frequencies but 2
kHz, 4 kHz and 8 kHz, the coarse phase limit depends on the WIDE_EN
bit and the PH_LOS_COARSE_LIMT[3:0] bits. Refer to Table 11.
DPLL Hard Limit (ppm) = DPLL_FREQ_HARD_LIMT[15:0] X 0.0014
3.7.2
0
Coarse Phase Limit
don’t-care
±1 UI
0
±1 UI
1
set by the PH_LOS_COARSE_LIMT[3:0] bits
1
If the FAST_LOS_SW bit, the COARSE_PH_LOS_LIMT_EN bit, the
FINE_PH_LOS_LIMT_EN bit or the FREQ_LIMT_PH_LOS bit is ‘0’, the
DPLL locking status will not be affected even if the corresponding event
is triggered. If all these bits are ‘0’, the DPLL will be in locked state in 2
seconds.
Table 11: Coarse Phase Limit Programming (the selected input
clock of other than 2 kHz, 4 kHz and 8 kHz)
WIDE_EN
Coarse Phase Limit
0
1
±1 UI
set by the PH_LOS_COARSE_LIMT[3:0] bits
The DPLL locking status is indicated by the T0_DPLL_LOCK /
T4_DPLL_LOCK bit.
The T4_STS 1 bit will be set when the locking status of the T4 DPLL
changes (from ‘lock’ to ‘unlock’ or from ‘unlock’ to ‘lock’). If the T4_STS 2
bit is ‘1’, an interrupt will be generated.
The occurrence of the coarse phase loss will result in T0/T4 DPLL
unlocked if the COARSE_PH_LOS_LIMT_EN bit is ‘1’.
Functional Description
LOCKING STATUS
The DPLL locking status depends on the locking monitoring results.
The DPLL is in locked state if none of the following events is triggered
during 2 seconds; otherwise, the DPLL is unlocked.
• Fast Loss (the FAST_LOS_SW bit is ‘1’);
• Coarse Phase Loss (the COARSE_PH_LOS_LIMT_EN bit is
‘1’);
• Fine Phase Loss (the FINE_PH_LOS_LIMT_EN bit is ‘1’);
• DPLL Hard Alarm (the FREQ_LIMT_PH_LOS bit is ‘1’).
Table 10: Coarse Phase Limit Programming (the selected input
clock of 2 kHz, 4 kHz or 8 kHz)
MULTI_PH_8K_4K
WIDE_EN
_2K_EN
Hard Limit Exceeding
Two limits are available for this monitoring. They are DPLL soft limit
and DPLL hard limit. When the frequency of the DPLL output with
respect to the master clock exceeds the DPLL soft / hard limit, a DPLL
soft / hard alarm will be raised; the alarm is cleared once the frequency
is within the corresponding limit. The occurrence of the DPLL soft alarm
does not affect the T0/T4 DPLL locking status. The DPLL soft alarm is
indicated by the corresponding T0_DPLL_SOFT_FREQ_ALARM /
T4_DPLL_SOFT_FREQ_ALARM bit. The occurrence of the DPLL hard
alarm will result in T0/T4 DPLL unlocked if the FREQ_LIMT_PH_LOS bit
is ‘1’.
Fast Loss
3.7.1.2
Fine Phase Loss
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3.7.3
SYNCHRONOUS ETHERNET WAN PLL
• Be cleared when a ‘1’ is written to the corresponding
INn_PH_LOCK_ALARM bit;
• Be cleared after the period (= TIME_OUT_VALUE[5:0] X
MULTI_FACTOR[1:0] in second) which starts from when the
alarm is raised.
PHASE LOCK ALARM (T0 ONLY)
A phase lock alarm will be raised when the selected input clock can
not be locked in T0 DPLL within a certain period. This period can be calculated as follows:
Period (sec.) = TIME_OUT_VALUE[5:0] X MULTI_FACTOR[1:0]
The selected input clock with a phase lock alarm is disqualified for T0
DPLL locking.
The phase lock alarm is indicated by the corresponding
INn_PH_LOCK_ALARM bit (14 ≥ n ≥ 1).
Note that no phase lock alarm is raised if the T4 selected input clock
can not be locked.
The phase lock alarm can be cleared by the following two ways, as
selected by the PH_ALARM_TIMEOUT bit:
Table 12: Related Bit / Register in Chapter 3.7
Bit
Register
Address (Hex)
PHASE_LOSS_FINE_LIMIT_CNFG
5B *
PHASE_LOSS_COARSE_LIMIT_CNFG
5A *
OPERATING_STS
52
DPLL_FREQ_SOFT_LIMIT_CNFG
65
DPLL_FREQ_HARD_LIMT[15:0]
DPLL_FREQ_HARD_LIMIT[15:8]_CNFG,
DPLL_FREQ_HARD_LIMIT[7:0]_CNFG
67, 66
T4_STS 1
INTERRUPTS3_STS
0F
INTERRUPTS3_ENABLE_CNFG
12
PHASE_ALARM_TIME_OUT_CNFG
08
IN1_IN2_STS ~ IN13_IN14_STS
INPUT_MODE_CNFG
T4_T0_REG_SEL_CNFG
43 ~ 49
09
07
FAST_LOS_SW
PH_LOS_FINE_LIMT[2:0]
FINE_PH_LOS_LIMT_EN
MULTI_PH_8K_4K_2K_EN
WIDE_EN
PH_LOS_COARSE_LIMT[3:0]
COARSE_PH_LOS_LIMT_EN
T0_DPLL_SOFT_FREQ_ALARM
T4_DPLL_SOFT_FREQ_ALARM
T0_DPLL_LOCK
T4_DPLL_LOCK
DPLL_FREQ_SOFT_LIMT[6:0]
FREQ_LIMT_PH_LOS
2
T4_STS
TIME_OUT_VALUE[5:0]
MULTI_FACTOR[1:0]
INn_PH_LOCK_ALARM (14 ≥ n ≥ 1)
PH_ALARM_TIMEOUT
T4_T0_SEL
Note: * The setting in the 5A and 5B registers is either for T0 path or for T4 path, as determined by the T4_T0_SEL bit.
Functional Description
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3.8
SYNCHRONOUS ETHERNET WAN PLL
INPUT CLOCK SELECTION
For T0 path, Revertive and Non-Revertive switchings are supported,
as selected by the REVERTIVE_MODE bit.
If the input clock is selected by External Fast selection or by Forced
selection, it can be switched by setting the related registers (refer to
Chapter 3.6.1 External Fast Selection (T0 only) & Chapter 3.6.2 Forced
Selection) any time. In this case, whether the input clock is qualified for
DPLL locking does not affect the clock switch. If the T4 selected input
clock is a T0 DPLL output, it can only be switched by setting the
T0_FOR_T4 bit.
For T4 path, only Revertive switching is supported.
GR-1244 defines Revertive and Non-Revertive Reference switching.
In Non-Revertive switching, a switch to an alternate reference is maintained even after the original reference has recovered from the failure
that caused the switch. In Revertive switching, the clock switches back
to the original reference after that reference recovers from the failure,
independent of the condition of the alternate reference. In Non-Revertive
switching, input clock switch is minimized.
When the input clock is selected by Automatic selection, the input
clock switch depends on its validity, priority and locking allowance configuration. If the current selected input clock is disqualified, a new qualified input clock may be switched to.
3.8.1
Conditions of the qualified input clocks available for T0 selection are
different from that for T4 selection, as shown in Table 13:
INPUT CLOCK VALIDITY
Table 13: Conditions of Qualified Input Clocks Available for T0 & T4
Selection
For all the input clocks, the validity depends on the results of input
clock quality monitoring (refer to Chapter 3.5 Input Clock Quality Monitoring). When all of the following conditions are satisfied, the input clock
is valid; otherwise, it is invalid.
• No LOS (the AMI1_LOS / AMI2_LOS bit is ‘0’);
• No no-activity alarm (the INn_NO_ACTIVITY_ALARM bit is ‘0’);
• No frequency hard alarm (the INn_FREQ_HARD_ALARM bit is
‘0’);
• If the IN_NOISE_WINDOW bit is ‘1’, all the edges of the input
clock of 2 kHz, 4 kHz or 8 kHz drift inside ±5%; if the
IN_NOISE_WINDOW bit is ‘0’, this condition is ignored.
Conditions of Qualified Input Clocks Available for T0 & T4 Selection
• Valid, i.e., the INn 1 bit is ‘1’;
• Priority enabled, i.e., the corresponding INn_SEL_PRIORITY[3:0] bits
T0 are not ‘0000’;
• Locking to the input clock is allowed, i.e., the corresponding INn_VALID
bit is ‘0’.
• Valid (all the validity conditions listed in Chapter 3.8.1 Input Clock Validity are satisfied);
• Priority enabled, i.e., the corresponding INn_SEL_PRIORITY[3:0] bits
T4
are not ‘0000’;
• Locking to the input clock is allowed, i.e., the corresponding INn_VALID
bit is ‘0’.
The validity qualification of the T0 selected input clock is different
from that of the T4 selected input clock. The validity qualification of the
T4 selected input clock is the same as the above. The T0 selected input
clock is valid when all of the above and the following conditions are satisfied; otherwise, it is invalid.
• No phase lock alarm, i.e., the INn_PH_LOCK_ALARM bit is ‘0’;
• If the ULTR_FAST_SW bit is ‘1’, the T0 selected input clock
misses less than (<) 2 consecutive clock cycles; if the
ULTR_FAST_SW bit is ‘0’, this condition is ignored.
The input clock is disqualified if any of the above conditions is not
satisfied.
In summary, the selected input clock can be switched by:
• External Fast selection (supported by T0 path only);
• Forced selection;
• Revertive switching;
• Non-Revertive switching (supported by T0 path only);
• T4 DPLL locked to T0 DPLL output (supported by T4 path only).
The validities of all the input clocks are indicated by the INn 1 bit (14
≥ n ≥ 1). When the input clock validity changes (from ‘valid’ to ‘invalid’ or
from ‘invalid’ to ‘valid’), the INn 2 bit will be set. If the INn 3 bit is ‘1’, an
interrupt will be generated.
3.8.2.1
In Revertive switching, the selected input clock is switched when
another qualified input clock with a higher priority than the current
selected input clock is available.
When the T0 selected input clock has failed, i.e., the validity of the T0
selected input clock changes from ‘valid’ to ‘invalid’, the
T0_MAIN_REF_FAILED 1 bit will be set. If the T0_MAIN_REF_FAILED 2
bit is ‘1’, an interrupt will be generated. This interrupt can also be indicated by hardware - the TDO pin, as determined by the
LOS_FLAG_TO_TDO bit. When the TDO pin is used to indicate this
interrupt, it will be set high when this interrupt is generated and will
remain high until this interrupt is cleared.
3.8.2
The selected input clock is switched if any of the following is satisfied:
• the selected input clock is disqualified;
• another qualified input clock with a higher priority than the
selected input clock is available.
A qualified input clock with the highest priority is selected by revertive
switching. If more than one qualified input clock INn is available and has
the same priority, the input clock with the smallest ‘n’ is selected.
INPUT CLOCK SELECTION
When the device is configured as Automatic input clock selection, T0
input clock switch is different from T4 input clock switch.
Functional Description
Revertive Switching
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3.8.2.2
SYNCHRONOUS ETHERNET WAN PLL
The qualified input clocks with the three highest priorities are indicated by HIGHEST_PRIORITY_VALIDATED[3:0] bits, the SECOND_
PRIORITY_VALIDATED[3:0] bits and the THIRD_PRIORITY
_VALIDATED[3:0] bits respectively. If more than one input clock INn has
the same priority, the input clock with the smallest ‘n’ is indicated by the
HIGHEST_PRIORITY_VALIDATED[3:0] bits.
Non-Revertive Switching (T0 only)
In Non-Revertive switching, the T0 selected input clock is not
switched when another qualified input clock with a higher priority than
the current selected input clock is available. In this case, the selected
input clock is switched and a qualified input clock with the highest priority is selected only when the T0 selected input clock is disqualified. If
more than one qualified input clock is available and has the same priority, the input clock with the smallest ‘n’ is selected.
3.8.3
When the device is configured in Automatic selection and Revertive
switching is enabled, the input clock indicated by the
CURRENTLY_SELECTED_INPUT[3:0] bits is the same as the one indicated by the HIGHEST_PRIORITY_VALIDATED[3:0] bits.
SELECTED / QUALIFIED INPUT CLOCKS INDICATION
The
selected
input
clock
is
indicated
by
the
CURRENTLY_SELECTED_INPUT[3:0] bits. Note if the T4 selected
input clock is a T0 DPLL output, it can not be indicated by these bits.
When all the input clocks for T4 path changes to be unqualified, the
INPUT_TO_T4 1 bit will be set. If the INPUT_TO_T4 2 bit is ‘1’, an interrupt will be generated.
Table 14: Related Bit / Register in Chapter 3.8
Bit
Register
T0_FOR_T4
Address (Hex)
T4_INPUT_SEL_CNFG
51
1 (14 ≥ n ≥ 1)
INPUT_VALID1_STS, INPUT_VALID2_STS
4A, 4B
INn 2 (14 ≥ n ≥ 1)
INTERRUPTS1_STS, INTERRUPTS2_STS
0D, 0E
INTERRUPTS1_ENABLE_CNFG, INTERRUPTS2_ENABLE_CNFG
10, 11
INTERRUPTS3_STS
0F
IN1_IN2_STS ~ IN13_IN14_STS
43 ~ 49
PHASE_MON_CNFG
78
MON_SW_HS_CNFG
0B
T0_MAIN_REF_FAILED 1
INTERRUPTS2_STS
0E
T0_MAIN_REF_FAILED 2
INn
3 (14 ≥ n ≥ 1)
INn
AMI1_LOS
AMI2_LOS
INn_NO_ACTIVITY_ALARM (14 ≥ n ≥ 1)
INn_FREQ_HARD_ALARM (14 ≥ n ≥ 1)
INn_PH_LOCK_ALARM (14 ≥ n ≥ 1)
IN_NOISE_WINDOW
ULTR_FAST_SW
LOS_FLAG_TO_TDO
INPUT_TO_T4
INTERRUPTS2_ENABLE_CNFG
11
1
INTERRUPTS3_STS
0F
2
INTERRUPTS3_ENABLE_CNFG
12
INPUT_MODE_CNFG
IN1_IN2_SEL_PRIORITY_CNFG ~ IN13_IN14_SEL_PRIORITY_CNFG
REMOTE_INPUT_VALID1_CNFG, REMOTE_INPUT_VALID2_CNFG
09
26 ~ 2C *
4C, 4D
PRIORITY_TABLE1_STS
4E *
PRIORITY_TABLE2_STS
4F *
T4_T0_REG_SEL_CNFG
07
INPUT_TO_T4
REVERTIVE_MODE
INn_SEL_PRIORITY[3:0] (14 ≥ n ≥ 1)
INn_VALID (14 ≥ n ≥ 1)
CURRENTLY_SELECTED_INPUT[3:0]
HIGHEST_PRIORITY_VALIDATED[3:0]
SECOND_PRIORITY_VALIDATED[3:0]
THIRD_PRIORITY_VALIDATED[3:0]
T4_T0_SEL
Note: * The setting in the 26 ~ 2C, 4E and 4F registers is either for T0 path or for T4 path, as determined by the T4_T0_SEL bit.
Functional Description
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3.9
SYNCHRONOUS ETHERNET WAN PLL
SELECTED INPUT CLOCK STATUS VS. DPLL
OPERATING MODE
Table 15: T0 DPLL Operating Mode Control
The operating modes supported by T0 DPLL are more complex than
the ones supported by T4 DPLL. T0 DPLL supports three primary operating modes: Free-Run, Locked and Holdover, and three secondary,
temporary operating modes: Pre-Locked, Pre-Locked2 and Lost-Phase.
T4 DPLL supports three operating modes: Free-Run, Locked and Holdover. The operating modes of T0 DPLL and T4 DPLL can be switched
automatically
or
by
force,
as
controlled
by
the
T0_OPERATING_MODE[2:0] / T4_OPERATING_ MODE[2:0] bits
respectively.
T0 SELECTED INPUT CLOCK VS. DPLL OPERATING
MODE
Functional Description
by
000
001
010
100
101
110
111
Automatic
Forced - Free-Run
Forced - Holdover
Forced - Locked
Forced - Pre-Locked2
Forced - Pre-Locked
Forced - Lost-Phase
Whether the operating mode is under external control or is switched
automatically, the current operating mode is always indicated by the
T0_DPLL_OPERATING_MODE[2:0] bits. When the operating mode
switches, the T0_OPERATING_MODE 1 bit will be set. If the
T0_OPERATING_MODE 2 bit is ‘1’, an interrupt will be generated.
When the operating mode is switched automatically, the internal
state machines for T0 and for T4 automatically determine the operating
mode respectively.
The T0 DPLL operating mode is controlled
T0_OPERATING_MODE[2:0] bits, as shown in Table 15:
T0 DPLL Operating Mode
When the operating mode is switched automatically, the operation of
the internal state machine is shown in Figure 8.
When the operating mode is switched by force, the operating mode
switch is under external control and the status of the selected input clock
takes no effect to the operating mode selection.
3.9.1
T0_OPERATING_MODE[2:0]
the
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1
Free-Run mode
3
2
Pre-Locked
mode
4
5
Locked
mode
10
9
15
Pre-Locked2
mode
8
6
Holdover
mode
7
11
12
Lost-Phase
mode
13
14
Figure 8. T0 Selected Input Clock vs. DPLL Automatic Operating Mode
Notes to Figure 8:
1. Reset.
2. An input clock is selected.
3. The T0 selected input clock is disqualified AND No qualified input clock is available.
4. The T0 selected input clock is switched to another one.
5. The T0 selected input clock is locked (the T0_DPLL_LOCK bit is ‘1’).
6. The T0 selected input clock is disqualified AND No qualified input clock is available.
7. The T0 selected input clock is unlocked (the T0_DPLL_LOCK bit is ‘0’).
8. The T0 selected input clock is locked again (the T0_DPLL_LOCK bit is ‘1’).
9. The T0 selected input clock is switched to another one.
10. The T0 selected input clock is locked (the T0_DPLL_LOCK bit is ‘1’).
11. The T0 selected input clock is disqualified AND No qualified input clock is available.
12. The T0 selected input clock is switched to another one.
13. The T0 selected input clock is disqualified AND No qualified input clock is available.
14. An input clock is selected.
15. The T0 selected input clock is switched to another one.
Functional Description
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Notes to Figure 9:
1. Reset.
2. An input clock is selected.
3. (The T4 selected input clock is disqualified) OR (A qualified input
clock with a higher priority is switched to) OR (The T4 selected
input clock is switched to another one by Forced selection) OR
(When T4 DPLL locks to the T0 DPLL output, the T4 selected
input clock is switched by setting the T0_FOR_T4 bit).
4. An input clock is selected.
5. No input clock is selected.
The causes of Item 4, 9, 12, 15 - ‘the T0 selected input clock is
switched to another one’ - are: (The T0 selected input clock is disqualified AND Another input clock is switched to) OR (In Revertive switching,
a qualified input clock with a higher priority is switched to) OR (The T0
selected input clock is switched to another one by External Fast selection or Forced selection).
Refer to Table 13 for details about the input clock qualification for T0
path.
3.9.2
T4 SELECTED INPUT CLOCK VS. DPLL OPERATING
MODE
The T4 DPLL operating mode is controlled
T4_OPERATING_MODE[2:0] bits, as shown in Table 16:
by
Refer to Table 13 for details about the input clock qualification for T4
path.
the
Table 17: Related Bit / Register in Chapter 3.9
Table 16: T4 DPLL Operating Mode Control
T4_OPERATING_MODE[2:0]
T4 DPLL Operating Mode
000
001
010
100
Automatic
Forced - Free-Run
Forced - Holdover
Forced - Locked
Bit
Address
(Hex)
Register
T0_OPERATING_MODE[2:0] T0_OPERATING_MODE_CNFG
T4_OPERATING_MODE[2:0] T4_OPERATING_MODE_CNFG
T0_DPLL_OPERATING_MOD
E[2:0]
OPERATING_STS
T0_DPLL_LOCK
When the operating mode is switched automatically, the operation of
the internal state machine is shown in Figure 9:
T0_OPERATING_MODE 1
T0_OPERATING_MODE
T0_FOR_T4
1
2
53
54
52
INTERRUPTS2_STS
0E
INTERRUPTS2_ENABLE_CNFG
11
T4_INPUT_SEL_CNFG
51
Free - Run mode
2
Locked mode
3
4
Holdover
mode
5
Figure 9. T4 Selected Input Clock vs. DPLL Automatic
Operating Mode
Functional Description
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3.10
SYNCHRONOUS ETHERNET WAN PLL
T0 / T4 DPLL OPERATING MODE
3.10.1.1
In Free-Run mode, the T0 DPLL output refers to the master clock
and is not affected by any input clock. The accuracy of the T0 DPLL output is equal to that of the master clock.
The T0/T4 DPLL gives a stable performance in different applications
without being affected by operating conditions or silicon process variations. It integrates a PFD (Phase & Frequency Detector), a LPF (Low
Pass Filter) and a DCO (Digital Controlled Oscillator), which forms a
closed loop. If no input clock is selected, the loop is not closed, and the
PFD and LPF do not function.
3.10.1.2
The Pre-Locked mode is a secondary, temporary mode.
3.10.1.3
Locked Mode
In Locked mode, the T0 selected input clock is locked. The phase
and frequency offset of the T0 DPLL output track those of the T0
selected input clock.
Averaged Phase Error (ns) = CURRENT_PH_DATA[15:0] X 0.61
The LPF filters jitter. Its 3 dB bandwidth and damping factor are programmable. A range of bandwidths and damping factors can be set to
meet different application requirements. For the same bandwidth setting,
a lower damping factor will decrease the locking time but will increase
overshoot.
In this mode, if the T0 selected input clock is in fast loss status and
the FAST_LOS_SW bit is ‘1’, the T0 DPLL is unlocked (refer to
Chapter 3.7.1.1 Fast Loss) and will enter Lost-Phase mode when the
operating mode is switched automatically; if the T0 selected input clock
is in fast loss status and the FAST_LOS_SW bit is ‘0’, the T0 DPLL locking status is not affected and the T0 DPLL will enter Temp-Holdover
mode automatically.
The DCO controls the DPLL output. The frequency of the DPLL output is always multiplied on the basis of the master clock. The phase and
frequency offset of the DPLL output may be locked to those of the
selected input clock. The current frequency offset with respect to the
master clock is indicated by the CURRENT_DPLL_FREQ[23:0] bits, and
can be calculated as follows:
3.10.1.3.1 Temp-Holdover Mode
The T0 DPLL will automatically enter Temp-Holdover mode with a
selected input clock switch or no qualified input clock available when the
operating mode switch is under external control.
Current Frequency Offset (ppm) = CURRENT_DPLL_FREQ[23:0] X
0.000011
In Temp-Holdover mode, the T0 DPLL has temporarily lost the
selected input clock. The T0 DPLL operation in Temp-Holdover mode
and that in Holdover mode are alike (refer to Chapter 3.10.1.5 Holdover
Mode) except the frequency offset acquiring methods. See
Chapter 3.10.1.5 Holdover Mode for details about the methods. The
method is selected by the TEMP_HOLDOVER_MODE[1:0] bits, as
shown in Table 18:
T0 DPLL OPERATING MODE
The T0 DPLL loop is closed except in Free-Run mode and Holdover
mode.
For a closed loop, different bandwidths and damping factors can be
used depending on DPLL locking stages: starting, acquisition and
locked.
Table 18: Frequency Offset Control in Temp-Holdover Mode
In the first two seconds when the T0 DPLL attempts to lock to the
selected input clock, the starting bandwidth and damping factor are
used. They are set by the T0_DPLL_START_BW[4:0] bits and the
T0_DPLL_START_DAMPING[2:0] bits respectively.
During the acquisition, the acquisition bandwidth and damping factor
are used. They are set by the T0_DPLL_ACQ_BW[4:0] bits and the
T0_DPLL_ACQ_DAMPING[2:0] bits respectively.
TEMP_HOLDOVER_MODE[1:0]
Frequency Offset Acquiring Method
00
01
10
11
the same as that used in Holdover mode
Automatic Instantaneous
Automatic Fast Averaged
Automatic Slow Averaged
The device automatically controls the T0 DPLL to exit from TempHoldover mode.
When the T0 selected input clock is locked, the locked bandwidth
and damping factor are used. They are set by the
T0_DPLL_LOCKED_BW[4:0]
bits
and
the
T0_DPLL_LOCKED_DAMPING[2:0] bits respectively.
3.10.1.4
Lost-Phase Mode
In Lost-Phase mode, the T0 DPLL output attempts to track the
selected input clock.
The corresponding bandwidth and damping factor are used when the
T0 DPLL operates in different DPLL locking stages: starting, acquisition
and locked, as controlled by the device automatically.
The Lost-Phase mode is a secondary, temporary mode.
3.10.1.5
Only the locked bandwidth and damping factor can be used regardless of the T0 DPLL locking stage, as controlled by the AUTO_BW_SEL
bit.
Functional Description
Pre-Locked Mode
In Pre-Locked mode, the T0 DPLL output attempts to track the
selected input clock.
The PFD detects the phase error, including the fast loss, coarse
phase loss and fine phase loss (refer to Chapter 3.7.1.1 Fast Loss to
Chapter 3.7.1.3 Fine Phase Loss). The averaged phase error of the T0/
T4 DPLL feedback with respect to the selected input clock is indicated
by the CURRENT_PH_DATA[15:0] bits. It can be calculated as follows:
3.10.1
Free-Run Mode
Holdover Mode
In Holdover mode, the T0 DPLL resorts to the stored frequency data
acquired in Locked mode to control its output. The T0 DPLL output is not
phase locked to any input clock. The frequency offset acquiring method
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is selected by the MAN_HOLDOVER bit, the AUTO_AVG bit and the
FAST_AVG bit, as shown in Table 19:
Table 19: Frequency Offset Control in Holdover Mode
MAN_HOLDOVER
AUTO_AVG
FAST_AVG
Frequency Offset Acquiring Method
0
don’t-care
0
1
Automatic Instantaneous
Automatic Slow Averaged
Automatic Fast Averaged
Manual
0
1
1
don’t-care
The frequency offset in ppm is calculated as follows:
3.10.1.5.1 Automatic Instantaneous
Holdover Frequency Offset (ppm) = T0_HOLDOVER_FREQ[23:0] X
0.000011
By this method, the T0 DPLL freezes at the operating frequency
when it enters Holdover mode. The accuracy is 4.4X10-8 ppm.
3.10.1.6
3.10.1.5.2 Automatic Slow Averaged
In Pre-Locked2 mode, the T0 DPLL output attempts to track the
selected input clock.
By this method, an internal IIR (Infinite Impulse Response) filter is
employed to get the frequency offset. The IIR filter gives a 3 dB attenuation point corresponding to a period of 110 minutes. The accuracy is
1.1X10-5 ppm.
The Pre-Locked2 mode is a secondary, temporary mode.
3.10.2
3.10.1.5.3 Automatic Fast Averaged
T4 DPLL OPERATING MODE
The T4 path is simpler compared with the T0 path.
By this method, an internal IIR (Infinite Impulse Response) filter is
employed to get the frequency offset. The IIR filter gives a 3 dB attenuation point corresponding to a period of 8 minutes. The accuracy is
1.1X10-5 ppm.
3.10.2.1
3.10.1.5.4 Manual
3.10.2.2
By this method, the frequency offset is set by
T0_HOLDOVER_FREQ[23:0] bits. The accuracy is 1.1X10-5 ppm.
Pre-Locked2 Mode
Free-Run Mode
In Free-Run mode, the T4 DPLL output refers to the master clock
and is affected by any input clock. The accuracy of the T4 DPLL output
is equal to that of the master clock.
Locked Mode
the
In Locked mode, the T4 selected input clock may be locked in the T4
DPLL.
The frequency offset of the T0 DPLL output is indicated by the
CURRENT_DPLL_FREQ[23:0] bits.
When the T4 selected input clock is locked, the phase and frequency
offset of the T4 DPLL output track those of the T4 selected input clock;
when unlocked, the phase and frequency offset of the T4 DPLL output
attempt to track those of the selected input clock.
The device provides a reference for the value to be written to the
T0_HOLDOVER_FREQ[23:0] bits. The value to be written can refer to
the value read from the CURRENT_DPLL_FREQ[23:0] bits or the
T0_HOLDOVER_FREQ[23:0] bits (refer to Chapter 3.10.1.5.5 Holdover
Frequency Offset Read); or then be processed by external software filtering.
The T4 DPLL loop is closed in Locked mode. Its bandwidth and
damping factor are set by the T4_DPLL_LOCKED_BW[1:0] bits and the
T4_DPLL_LOCKED_DAMPING[2:0] bits respectively.
3.10.2.3
3.10.1.5.5 Holdover Frequency Offset Read
Holdover Mode
In Holdover mode, the T4 DPLL resorts to the stored frequency data
acquired in Locked mode to control its output. The T4 DPLL output is not
phase locked to any input clock. The T4 DPLL freezes at the operating
frequency when it enters Holdover mode. The accuracy is 4.4X10-8
ppm.
The offset value, which is acquired by Automatic Slow Averaged,
Automatic Fast Averaged and is set by related register bits, can be read
from the T0_HOLDOVER_FREQ[23:0] bits by setting the READ_AVG
bit and the FAST_AVG bit, as shown in Table 20.
Table 20: Holdover Frequency Offset Read
READ_AVG FAST_AVG
0
1
Offset Value Read from
T0_HOLDOVER_FREQ[23:0]
don’t-care The value is equal to the one written to.
The value is acquired by Automatic Slow Averaged
0
method, not equal to the one written to.
The value is acquired by Automatic Fast Averaged
1
method, not equal to the one written to.
Functional Description
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SYNCHRONOUS ETHERNET WAN PLL
Table 21: Related Bit / Register in Chapter 3.10
Bit
Register
Address (Hex)
CURRENT_PH_DATA[15:0]
CURRENT_DPLL_PHASE[15:8]_STS, CURRENT_DPLL_PHASE[7:0]_STS
CURRENT_DPLL_FREQ[23:16]_STS, CURRENT_DPLL_FREQ[15:8]_STS,
CURRENT_DPLL_FREQ[7:0]_STS
69 *, 68 *
CURRENT_DPLL_FREQ[23:0]
T0_DPLL_START_BW[4:0]
T0_DPLL_START_DAMPING[2:0]
T0_DPLL_ACQ_BW[4:0]
T0_DPLL_ACQ_DAMPING[2:0]
T0_DPLL_LOCKED_BW[4:0]
T0_DPLL_LOCKED_DAMPING[2:0]
AUTO_BW_SEL
FAST_LOS_SW
TEMP_HOLDOVER_MODE[1:0]
MAN_HOLDOVER
AUTO_AVG
FAST_AVG
READ_AVG
T0_HOLDOVER_FREQ[23:0]
T4_DPLL_LOCKED_BW[1:0]
T4_DPLL_LOCKED_DAMPING[2:0]
T4_T0_SEL
64 *, 63 *, 62 *
T0_DPLL_START_BW_DAMPING_CNFG
56
T0_DPLL_ACQ_BW_DAMPING_CNFG
57
T0_DPLL_LOCKED_BW_DAMPING_CNFG
58
T0_BW_OVERSHOOT_CNFG
PHASE_LOSS_FINE_LIMIT_CNFG
59
5B *
T0_HOLDOVER_MODE_CNFG
5C
T0_HOLDOVER_FREQ[23:16]_CNFG, T0_HOLDOVER_FREQ[15:8]_CNFG,
T0_HOLDOVER_FREQ[7:0]_CNFG
5F, 5E, 5D
T4_DPLL_LOCKED_BW_DAMPING_CNFG
61
T4_T0_REG_SEL_CNFG
07
Note: * The setting in the 5B, 62 ~ 64, 68 and 69 registers is either for T0 path or for T4 path, as determined by the T4_T0_SEL bit.
Functional Description
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IDT82V3390 DATASHEET
3.11
SYNCHRONOUS ETHERNET WAN PLL
T0 / T4 DPLL OUTPUT
3.11.5
The T0 DPLL output and the T4 DPLL output are phase aligned with
the T0 selected input clock and the T4 selected input clock respectively
every 125 µs period. Each DPLL has five output paths.
The DPLL output is locked to the selected input clock. According to
the phase-compared result of the feedback and the selected input clock,
and the DPLL output frequency offset, the PFD output is limited and the
DPLL output is frequency offset limited.
3.11.1
3.11.5.1
PFD OUTPUT LIMIT
FREQUENCY OFFSET LIMIT
The DPLL output is limited to be within the DPLL hard limit (refer to
Chapter 3.7.1.4 Hard Limit Exceeding).
For T0 DPLL, the integral path value can be frozen when the DPLL
hard limit is reached. This function, enabled by the T0_LIMT bit, will minimize the subsequent overshoot when T0 DPLL is pulling in.
3.11.3
T0 selected input clock is compared with a T0 DPLL output for DPLL
locking. The output can only be derived from the 77.76 MHz path or the
16E1/16T1 path. The output path is automatically selected and the output is automatically divided to get the same frequency as the T0
selected input clock.
HITLESS REFERENCE SWITCHING (T0 ONLY)
The hitless switching (HS) function is only supported by the T0 path.
When a switch event is triggered, the phase offset of the selected
input clock with respect to the T0 DPLL output is measured. The device
then automatically accounts for the measured phase offset and compensates an appropriate phase offset into the DPLL output so that the phase
transients on the T0 DPLL output are minimized.
The T0 DPLL 77.76 MHz output or an 8 kHz signal derived from it
can be provided for the T4 DPLL input clock selection (refer to
Chapter 3.6 T0 / T4 DPLL Input Clock Selection).
T0 DPLL outputs are provided for T0/T4 APLL or device output process.
A switch event is triggered if any one of the following conditions
occurs:
• T0 selected input clock switches (the HS_EN bit is ‘1’);
• T0 DPLL exits from Holdover mode or Free-Run mode (the
HS_EN bit is ‘1’)
3.11.5.2
T4 selected input clock is compared with a T4 DPLL output for DPLL
locking. The output can be derived from the 77.76 MHz path or the
16E1/16T1 path. In this case, the output path is automatically selected
and the output is automatically divided to get the same frequency as the
T4 selected input clock.
PHASE OFFSET SELECTION (T0 ONLY)
The phase offset of the T0 selected input clock with respect to the T0
DPLL output can be adjusted. If the device is configured as the Master,
the PH_OFFSET_EN bit determines whether the input-to-output phase
offset is enabled; if the device is configured as the Slave, the input-tooutput phase offset is always enabled. If enabled, the input-to-output
phase offset can be adjusted by setting the PH_OFFSET[9:0] bits.
In addition, T4 selected input clock is compared with the T0 selected
input clock to get the phase difference between T0 and T4 selected input
clocks, as determined by the T4_TEST_T0_PH bit.
T4 DPLL outputs are provided for T0/T4 APLL or device output process.
The input-to-output phase offset can be calculated as follows:
Phase Offset (ns) = PH_OFFSET[9:0] X 0.61
Functional Description
T4 Path
The five paths for T4 DPLL output are as follows:
• 77.76 MHz path - outputs a 77.76 MHz clock;
• 16E1/16T1 path - outputs a 16E1 or 16T1 clock, as selected by
the IN_SONET_SDH bit;
• GSM/GPS/16E1/16T1 path - outputs an GSM, GPS, 16E1 or
16T1 clock, as selected by the T4_GSM_GPS_16E1_16T1_
SEL[1:0] bits;
• 12E1/24T1/E3/T3 path - outputs a 12E1, 24T1, E3 or T3 clock,
as selected by the T4_12E1_24T1_E3_T3_SEL[1:0] bits;
• 25 MHz path - outputs a 25 MHz clock.
For the above two conditions, the phase transients on the T0 DPLL
output are minimized to be no more than 0.61 ns with hitless switch
function enabled. The hitless switch can also be frozen at the current
phase offset by setting the HS_FREZ bit. When the hitless switch is frozen, the device will ignore any further switch events triggered by the
above two conditions, and maintain the current phase offset. When the
hitless switch function is disabled, there may be a phase shift on the T0
DPLL output and the T0 DPLL output tracks back to 0 degree phase offset with respect to the T0 selected input clock.
3.11.4
T0 Path
The five paths for T0 DPLL output are as follows:
• 77.76 MHz path - outputs a 77.76 MHz clock;
• 16E1/16T1 path - outputs a 16E1 or 16T1 clock, as selected by
the IN_SONET_SDH bit;
• GSM/OBSAI/16E1/16T1 path - outputs a GSM, OBSAI, 16E1 or
16T1 clock, as selected by the T0_GSM_OBSAI_16E1_16T1_
SEL[1:0] bits;
• 12E1/24T1/E3/T3 path - outputs a 12E1, 24T1, E3 or T3 clock,
as selected by the T0_12E1_24T1_E3_T3_SEL[1:0] bits;
• 25 MHz path - outputs a 25 MHz clock.
The PFD output is limited to be within ±1 UI or within the coarse
phase limit (refer to Chapter 3.7.1.2 Coarse Phase Loss), as determined
by the MULTI_PH_APP bit.
3.11.2
FIVE PATHS OF T0 / T4 DPLL OUTPUTS
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Table 22: Related Bit / Register in Chapter 3.11
Bit
Register
Address (Hex)
MULTI_PH_APP
T0_LIMT
HS_EN
HS_FREZ
PH_OFFSET_EN
PH_OFFSET[9:0]
IN_SONET_SDH
T0_GSM_OBSAI_16E1_16T1_SEL[1:0]
T0_12E1_24T1_E3_T3_SEL[1:0]
T4_GSM_GPS_16E1_16T1_SEL[1:0]
T4_12E1_24T1_E3_T3_SEL[1:0]
T4_TEST_T0_PH
T4_T0_SEL
PHASE_LOSS_COARSE_LIMIT_CNFG
T0_BW_OVERSHOOT_CNFG
5A *
59
MON_SW_HS_CNFG
0B
PHASE_OFFSET[9:8]_CNFG
PHASE_OFFSET[9:8]_CNFG, PHASE_OFFSET[7:0]_CNFG
INPUT_MODE_CNFG
7B
7B, 7A
09
T0_DPLL_APLL_PATH_CNFG
55
T4_DPLL_APLL_PATH_CNFG
60
T4_INPUT_SEL_CNFG
T4_T0_REG_SEL_CNFG
51
07
Note: * The setting in the 5A register is either for T0 path or for T4 path, as determined by the T4_T0_SEL bit.
Functional Description
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IDT82V3390 DATASHEET
3.12
SYNCHRONOUS ETHERNET WAN PLL
T0 / T4 APLL
and T4 APLL external filter option. The T0 APLL and T4 APLL loop
bandwidth selection table shows Rs, Cs and Cp values for recommend
bandwidth less than 100kHz. The device has been characterized using
these parameters. The external loop filter components should be kept as
close as possible to the device. Loop filter traces should be kept short.
Other signal traces should be kept separated and not run underneath
the device and loop filter components.
A T0 APLL and a T4 APLL are provided for a better jitter and wander
performance of the device output clocks.
The bandwidths of the T0/T4 APLL are set by the T0_APLL_BW[1:0]
/ T4_APLL_BW[1:0] bits respectively. The lower the bandwidth is, the
better the jitter and wander performance of the T0/T4 APLL output are.
The input of the T0/T4 APLL can be derived from one of the T0 and
T4 DPLL outputs, as selected by the T0_APLL_PATH[3:0] /
T4_APLL_PATH[3:0] bits respectively.
Table 24: T0 / T4 APLL Approximate Loop Bandwidth Selection
Both the APLL and DPLL outputs are provided for selection for the
device output.
Bandwidth
VC filter pin
< 100 kHz
External component
≥ 100 kHz
No Connect
Rs (Ω)
Cs (uF)
Cp (nF)
182
2
2
Please refer to Register 6A for detail
for internal filter
Table 23: Related Bit / Register in Chapter 3.12
Bit
T0_APLL_BW[1:0]
T4_APLL_BW[1:0]
T0_APLL_PATH[3:0]
T4_APLL_PATH[3:0]
3.12.1
Register
Address (Hex)
T0_T4_APLL_BW_CNFG
6A
T0_DPLL_APLL_PATH_CNFG
T4_DPLL_APLL_PATH_CNFG
55
60
VC
Rs
OPTIONAL EXTERNAL FILTER
Cs
Cp
If the desire loop bandwidth of T0 APLL and T4 APLL is below 100
kHz for better noise suppressing, it is recommended to use external filter
component. The filter components are connected to VC0 for T0 APLL
and VC4 for T4 APLL. For internal filter option with loop bandwidth
higher or equal to 100 kHz, VC0 and VC4 pins are left floating.
Choosing the correct external components and having a printed circuit board (PCB) layout is a key task for quality operation of the T0 APLL
Functional Description
Figure 10. APLL External Filter Components
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3.13
SYNCHRONOUS ETHERNET WAN PLL
OUTPUT CLOCKS & FRAME SYNC SIGNALS
the output frequency. If the signal is derived from the T0/T4 APLL output,
please refer to Table 26~Table 27 for the output frequency.
The device supports 9 output clocks and 2 frame sync output signals
altogether.
3.13.1
The output on OUT8 is derived from T0 or T4 DPLL 77.76 MHz path,
as selected by the OUT8_PATH_SEL bit. After being divided automatically, the output is of 64 kHz + 8 kHz or 64 kHz + 8 kHz + 0.4 kHz, as
selected by the 400HZ_SEL bit. Its duty cycle is 50:50 or 5:8, as determined by the AMI_OUT_DUTY bit.
OUTPUT CLOCKS
The device provides 9 output clocks.
According to the output port technology, the output ports support the
following technologies:
• AMI;
• PECL/LVDS;
• CMOS.
The output on OUT9 is derived from T0 or T4 DPLL 16E1/16T1 path,
as selected by the OUT9_PATH_SEL bit. After being divided automatically, the output is of 2.048 MHz or 1.544 MHz, as selected by the
IN_SONET_SDH bit.
The outputs on OUT8 and OUT9 can be enabled or disabled, or may
be affected by the status of the T4 input clock. It is determined by the
OUT8_EN / OUT9_EN and T4_INPUT_FAIL 1 / T4_INPUT_FAIL 2 bits.
Refer to Table 27.
OUT1 ~ OUT5 and OUT9 output a CMOS signal.
OUT6 and OUT7 output a PECL or LVDS signal, as selected by the
OUT6_PECL_LVDS bit and the OUT7_PECL_LVDS bit respectively.
OUT8 outputs an AMI signal.
The outputs on OUT1 to OUT7 and OUT9 can be inverted, as determined by the corresponding OUTn_INV bit (1 ≤ n ≤ 7 or n = 9).
The outputs on OUT1 ~ OUT7 are variable, depending on the signals
derived from the T0/T4 DPLL and T0/T4 APLL outputs, and the corresponding OUTn_PATH_SEL[3:0] bits (1 ≤ n ≤ 7). The derived signal can
be from the T0/T4 DPLL and T0/T4 APLL outputs, as selected by the
corresponding OUTn_PATH_SEL[3:0] bits (1 ≤ n ≤ 7). If the signal is
derived from one of the T0/T4 DPLL outputs, please refer to Table 25 for
All the output clocks derived from T0/T4 selected input clock are
aligned with the T0/T4 selected input clock respectively every 125 µs
period.
Table 25: Outputs on OUT1 ~ OUT7 if Derived from T0/T4 DPLL Outputs
OUTn_DIVIDER[3:0]
(Output Divider) 1 77.76 MHz
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
outputs on OUT1 ~ OUT7 if derived from T0/T4 DPLL outputs 2
12E1
16E1
24T1
16T1
E3
T3
GSM
(26 MHz)
ETH
OBSAI
(30.72 MHz)
GPS
(40 MHz)
15.36 MHz
20 MHz
10 MHz
Output is disabled (output low).
12E1
6E1
3E1
2E1
16E1
8E1
4E1
2E1
E1
24T1
12T1
6T1
4T1
3T1
2T1
E1
16T1
8T1
4T1
E3
T3
2T1
25 MHz
13 MHz
5 MHz
T1
T1
64 kHz
8 kHz
2 kHz
400 Hz
Output is disabled (output high).
Note:
1. 1 ≤ n ≤ 7. Each output is assigned a frequency divider.
2. E1 = 2.048 MHz, T1 = 1.544 MHz, E3 = 34.368 MHz, T3 = 44.736 MHz. The blank cell means the configuration is reserved.
Functional Description
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SYNCHRONOUS ETHERNET WAN PLL
Table 26: Outputs on OUT1 ~ OUT7 if Derived from T0/T4 APLL1
Outputs on OUT1 ~ OUT7 if Derived from T0/T4 APLL Output 3
OUTn_DIVIDER[3:0]
GSM
OBSAI
GPS
(Output Divider) 2 77.76 MHz X 4 12E1 X 4 16E1 X 4 24T1 X 4 16T1 X 4
E3
T3
(26 MHz X 2) (30.72 MHz X 10) (40 MHz)
0000
ETH
Output is disabled (output low).
0001
622.08 MHz 4
0010
311.04 MHz 4
48E1
64E1
96T1
64T1
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
155.52 MHz
77.76 MHz
51.84 MHz
38.88 MHz
25.92 MHz
19.44 MHz
24E1
12E1
8E1
6E1
4E1
3E1
2E1
32E1
16E1
48T1
24T1
16T1
12T1
8T1
6T1
4T1
3T1
2T1
32T1
16T1
625 MHz
8E1
4E1
2E1
6.48 MHz
E1
E1
E3
T3
104 MHz
307.2 MHz
40 MHz
52 MHz
26 MHz
13 MHz
153.6 MHz
76.8 MHz
20 MHz 312.5 MHz
10 MHz 156.25 MHz
38.4 MHz
5 MHz
8T1
125 MHz
4T1
61.44 MHz
30.72 MHz
15.36 MHz
7.68 MHz
3.84 MHz
2T1
T1
T1
125 MHz
Output is disabled (output high).
Note:
1. For the APLL path selection, please refer to the registers T0_DPLL_APLL_PATH_CNFG (55H) and T4_DPLL_APLL_PATH_CNFG (60H) in Chapter 7.2.7 T0 / T4 DPLL & APLL Configuration Registers.
2. 1 ≤ n ≤ 7. Each output is assigned a frequency divider.
3. In the APLL, the selected T0/T4 DPLL output may be multiplied. E1 = 2.048 MHz, T1 = 1.544 MHz, E3 = 34.368 MHz, T3 = 44.736 MHz. The blank cell means the configuration is
reserved.
4. The 622.08 MHz and 311.04 MHz differential signals are only output on OUT6 and OUT7.
Table 27: Outputs on OUT8 & OUT9
OUT8_EN / OUT9_EN T4_INPUT_FAIL 1 / T4_INPUT_FAIL 2
0
1
Functional Description
don’t-care
0
1
Outputs on OUT8 & OUT9
Output is disabled (output low).
Output is enabled.
Output is enabled when the T4 selected input clock does not fail.
Output is disabled (output low) when the T4 selected input clock fails.
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IDT82V3390 DATASHEET
3.13.2
SYNCHRONOUS ETHERNET WAN PLL
selected input clock. Nominally, the falling edge of EX_SYNC1 is aligned
with the rising edge of the T0 selected input clock. EX_SYNC1 may be
0.5 UI early/late or 1 UI late due to the circuit and board wiring delays.
Setting the sampling of EX_SYNC1 by the SYNC_PH1[1:0] bits will
compensate this early/late. Refer to Figure 11 to Figure 14.
FRAME SYNC OUTPUT SIGNALS
An 8 kHz and a 2 kHz frame sync signals are output on the
FRSYNC_8K and MFRSYNC_2K pins if enabled by the 8K_EN and
2K_EN bits respectively. They are CMOS outputs.
The two frame sync signals are derived from the T0 APLL output and
are aligned with the output clock. They can be synchronized to the frame
sync input signal.
The EX_SYNC_ALARM_MON bit indicates whether EX_SYNC1 is in
external sync alarm status. The external sync alarm is indicated by the
EX_SYNC_ALARM 1 bit. If the EX_SYNC_ALARM 2 bit is ‘1’, the occurrence of the external sync alarm will trigger an interrupt.
If the frame sync input signal with respect to the T0 selected input
clock is above a limit set by the SYNC_MON_LIMT[2:0] bits, an external
sync alarm will be raised and EX_SYNC1 is disabled to synchronize the
frame sync output signals. The external sync alarm is cleared once
EX_SYNC1 with respect to the T0 selected input clock is within the limit.
If it is within the limit, whether EX_SYNC1 is enabled to synchronize the
frame sync output signal is determined by the AUTO_EXT_SYNC_EN
bit and the EXT_SYNC_EN bit. Refer to Table 28 for details.
The 8 kHz and the 2 kHz frame sync output signals can be inverted
by setting the 8K_INV and 2K_INV bits respectively. The frame sync outputs can be 50:50 duty cycle or pulsed, as determined by the 8K_PUL
and 2K_PUL bits respectively. When they are pulsed, the pulse width is
defined by the period of OUT3; and they are pulsed on the position of
the falling or rising edge of the standard 50:50 duty cycle, as selected by
the 2K_8K_PUL_POSITION bit.
When the frame sync input signal is enabled to synchronize the
frame sync output signal, it should be adjusted to align itself with the T0
Table 28: Synchronization Control
AUTO_EXT_SYNC_EN EXT_SYNC_EN
don’t-care
0
1
0
1
1
Synchronization
Disabled
Enabled
Enabled if the T0 selected input clock is IN11; otherwise, disabled.
T0 selected
input clock
T0 selected
input clock
EX_SYNC1
EX_SYNC1
Frame sync
output signals
Frame sync
output signals
Output clocks
Output clocks
Figure 11. On Target Frame Sync Input Signal Timing
Figure 12. 0.5 UI Early Frame Sync Input Signal Timing
Functional Description
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IDT82V3390 DATASHEET
SYNCHRONOUS ETHERNET WAN PLL
T0 selected
input clock
T0 selected
input clock
EX_SYNC1
EX_SYNC1
Frame sync
output signals
Frame sync
output signals
Output clocks
Output clocks
Figure 14. 1 UI Late Frame Sync Input Signal Timing
Figure 13. 0.5 UI Late Frame Sync Input Signal Timing
Table 29: Related Bit / Register in Chapter 3.13
Bit
OUT6_PECL_LVDS
OUT7_PECL_LVDS
OUTn_PATH_SEL[3:0] (1 ≤ n ≤ 7)
OUTn_DIVIDER[3:0] (1 ≤ n ≤ 7)
OUT8_PATH_SEL
400HZ_SEL
AMI_OUT_DUTY
Register
Address (Hex)
DIFFERENTIAL_IN_OUT_OSCI_CNFG
0A
OUT1_FREQ_CNFG ~ OUT7_FREQ_CNFG
6B ~ 71
OUT8_FREQ_CNFG
72
OUT9_FREQ_CNFG
73
INPUT_MODE_CNFG
09
OUT9_FREQ_CNFG, OUT8_FREQ_CNFG
73, 72
FR_MFR_SYNC_CNFG
74
SYNC_MONITOR_CNFG
SYNC_PHASE_CNFG
OPERATING_STS
7C
7D
52
INTERRUPTS3_STS
0F
INTERRUPTS3_ENABLE_CNFG
12
1
T4_INPUT_FAIL
OUT8_EN
OUT9_PATH_SEL
OUT9_EN
T4_INPUT_FAIL 2
IN_SONET_SDH
AUTO_EXT_SYNC_EN
EXT_SYNC_EN
OUTn_INV (1 ≤ n ≤ 7 or n = 9)
8K_EN
2K_EN
8K_INV
2K_INV
8K_PUL
2K_PUL
2K_8K_PUL_POSITION
SYNC_MON_LIMT[2:0]
SYNC_PH1[1:0]
EX_SYNC_ALARM_MON
EX_SYNC_ALARM 1
EX_SYNC_ALARM
Functional Description
2
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IDT82V3390 DATASHEET
3.14
SYNCHRONOUS ETHERNET WAN PLL
MASTER / SLAVE CONFIGURATION
In this application, all the output clocks derived from the T0 selected
input clock and the frame sync output signals from the two devices are
at the same frequency offset and phase. Refer to Chapter 3.13.2 Frame
SYNC Output Signals for details.
Master / Slave configuration is only supported by the T0 path of the
device.
Two devices should be used together in order to:
• Enable system protection against single chip failure;
• Guarantee no service interrupt during system maintenance, such
as software or hardware upgrade.
The difference between the Master and the Slave is: in the Master,
the IN11 should not be selected by the T0 DPLL; in the Slave, the following functions are automatically forced:
• The T0 selected input clock is IN11;
• T0 HS is disabled;
• T0 DPLL operates at the acquisition bandwidth and damping factor;
• EX_SYNC1 is used for synchronization;
• T0 DPLL operates in Locked mode.
Of the two devices, one is configured as the Master and the other is
configured as the Slave. The configuration is made by the MS/SL pin
and the MS_SL_CTRL bit (b0, 13H), as shown in Table 30:
Table 30: Device Master / Slave Control
Master / Slave Control
MS/SL pin
0
1
0
1
High
Low
In the Slave, the corresponding registers of the above forced functions can still be configured, but their configuration does not take any
effect. The frequency of the T0 selected input clock IN11 is recommended to be 6.48 MHz.
Result
MS_SL_CTRL Bit
Master
Slave
Slave
Master
Backplane connections
Hardware
control
EX_ SYNC1
MS/SL
IN1
.
.
.
.
.
.
IN10
IN11
IN12
.
.
.
.
.
.
IN14
.
.
.
.
.
.
OUT1
one output
OUT2
. clock
OUT7
.
.
.
one output
FRSYNC _8K / frame sync
MFRSYNC_2K signal
EX_ SYNC1
MS / SL
IN1
.
.
.
IN10
IN11
IN12
.
.
.
IN14
.
.
Chip A
Chip B
OUT1
OUT2 one output
.
. clock
.
OUT7
.
.
.
one output
FRSYNC_8K / frame sync
MFRSYNC_2K signal
Backplane
Figure 15. Physical Connection Between Two Devices
Functional Description
45
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3.15
SYNCHRONOUS ETHERNET WAN PLL
INTERRUPT SUMMARY
3.16
The interrupt sources of the device are as follows:
• AMI violation
• LOS
• T4 DPLL locking status change
• Input clocks for T0 path validity change
• T0 selected input clock fail
• Input clocks for T4 path change to be no qualified input clock
available
• T0 DPLL operating mode switch
• External sync alarm
The main features supported by the T0 path are as follows:
• Phase lock alarm;
• Forced or Automatic input clock selection/switch;
• 3 primary and 3 secondary, temporary DPLL operating modes,
switched automatically or under external control;
• Automatic switch between starting, acquisition and locked bandwidths/damping factors;
• Programmable DPLL bandwidths from 0.5 mHz to 560 Hz in 19
steps;
• Programmable damping factors: 1.2, 2.5, 5, 10 and 20;
• Fast loss, coarse phase loss, fine phase loss and hard limit
exceeding monitoring;
• Output phase and frequency offset limited;
• Automatic Instantaneous, Automatic Slow Averaged, Automatic
Fast Averaged or Manual holdover frequency offset acquiring;
• Hitless switch to minimize output phase transients;
• Programmable output phase offset;
• Low jitter multiple clock outputs with programmable polarity;
• Low jitter 2 kHz and 8 kHz frame sync signal outputs with programmable pulse width and polarity;
• Master / Slave application to enable system protection against
single device failure.
All of the above interrupt events are indicated by the corresponding
interrupt status bit. If the corresponding interrupt enable bit is set, any of
the interrupts can be reported by the INT_REQ pin. The output characteristics on the INT_REQ pin are determined by the HZ_EN bit and the
INT_POL bit.
Interrupt events are cleared by writing a ‘1’ to the corresponding
interrupt status bit. The INT_REQ pin will be inactive only when all the
pending enabled interrupts are cleared.
In addition, the interrupt of T0 selected input clock fail can be
reported by the TDO pin, as determined by the LOS_FLAG_TO_TDO
bit. Refer to Chapter 7.2.2 Interrupt Registers.
The main features supported by the T4 path are as follows:
• Forced or Automatic input clock selection/switch;
• Locking to T0 DPLL output;
• 3 DPLL operating modes, switched automatically or under external control;
• Programmable DPLL bandwidth: 18 Hz, 35 Hz, 70 Hz and 560
Hz;
• Programmable damping factor: 1.2, 2.5, 5, 10 and 20;
• Fast loss, coarse phase loss, fine phase loss and hard limit
exceeding monitoring;
• Output phase and frequency offset limited;
• Automatic Instantaneous holdover frequency offset;
• Low jitter multiple clock outputs with programmable polarity.
Table 31: Related Bit / Register in Chapter 3.15
Bit
HZ_EN
INT_POL
LOS_FLAG_TO_TDO
Functional Description
Register
Address (Hex)
INTERRUPT_CNFG
0C
MON_SW_HS_CNFG
0B
T0 AND T4 SUMMARY
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3.17
SYNCHRONOUS ETHERNET WAN PLL
POWER SUPPLY FILTERING TECHNIQUES
IDT82V3390
3.3V
SLF7028T-100M1R1
VDDA
0. 1 µF
10µF
0.1 µF
0.1 µF
0. 1 µF
0.1 µF
0.1 µF
0. 1 µF
6, 12, 13, 16, 19
VSSA
0.1 µF
1, 5, 14, 15, 20
VSSD
49, 62, 84, 87, 92
VDD_DIFF
26, 33, 39
29, 32, 38
VSS _DIFF
3.3V
SLF7028T-100M1R1
10µF
VDDD
0.1 µF
0.1 µF
0. 1 µF
0. 1 µF
50, 61, 85, 86, 91
0. 1 µF
Figure 16. IDT82V3390 Power Decoupling Scheme
The analog power supply VDDA and VDD_DIFF should have low
impedance. This can be achieved by using one 10 uF (1210 case size,
ceramic) and at least eight 0.1 uF (0402 case size, ceramic) capacitors
in parallel. The 0.1 uF (0402 case size, ceramic) capacitors must be
placed right next to the VDDA and VDD_DIFF pins as close as possible.
Note that the 10 uF capacitor must be of 1210 case size, and it must be
ceramic for lowest ESR (Effective Series Resistance) possible. The 0.1
uF should be of case size 0402, this offers the lowest ESL (Effective
Series Inductance) to achieve low impedance towards the high speed
range.
To achieve optimum jitter performance, power supply filtering is
required to minimize supply noise modulation of the output clocks. The
common sources of power supply noise are switch power supplies and
the high switching noise from the outputs to the internal PLL. The
IDT82V3390 provides separate VDDA power pins for the internal analog
PLL, VDD_DIFF for the differential output driver circuit and VDDD pins
for the core logic as well as I/O driver circuits.
To minimize switching power supply noise generated by the switching regulator, the power supply output should be filtering with sufficient
bulk capacity to minimize ripple and 0.1 uF (0402 case size, ceramic)
caps to filter out the switching transients.
For VDDD, at least five 0.1 uF (0402 case size, ceramic) and one 10
uF (1210 case size, ceramic) capacitors are recommended. The 0.1 uF
capacitors should be placed as close to the VDDD pins as possible.
For the IDT82V3390, the decoupling for VDDA, VDD_DIFF and
VDDD are handled individually. VDDD, VDD_DIFF and VDDA should be
individually connected to the power supply plane through vias, and
bypass capacitors should be used for each pin. Figure 16 illustrated how
bypass capacitor and ferrite bead should be connected to power pins.
Functional Description
Please refer to evaluation board schematic for details.
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4
SYNCHRONOUS ETHERNET WAN PLL
TYPICAL APPLICATION
The device supports Master / Slave application, as shown in
Figure 17:
PRS
( Primary Reference Source)
BITS/SSU
Timing Module
BITS/SSU
Timing Module
IDT82V 3288
IDT82V 3288
Eth /E1/T1/OC- N Clock
Stratum
3 /SMC /SEC/EEC
Module
Line Timing
Eth/E1/T1/
OC- N Clock
IDT82V 3390
Master / Slave
Central Clock
Modules
Stratum
3/SMC/SEC/EEC
Module
Line Timing
IDT82V 3390
Eth/E1/T1/
OC-N Clock
Eth/E1/T1/OC- N Clock
Eth/E1/T1/OC- N Clock
Telecom/ Datacom
Equipment
Eth/E1/T1/OC- N
Clock
Line Card
IDT82V 3355
...
Eth/E1/T1/OC- N
Clock
Line Card
IDT82V 3355
Eth/E1/T1/OC- N
Clock
Line Card
IDT82V 3355
...
Eth/E1/T1/OC- N
Clock
Line Card
IDT82V 3355
note: Eth = Ethernet
Figure 17. Typical Application
4.1
MASTER / SLAVE APPLICATION
In Master / Slave application, two devices should be used together.
Of the two devices, one is configured as the Master and the other is configured as the Slave. Refer to Chapter 3.14 Master / Slave Configuration
for details.
Master / Slave application is only supported by the T0 path of the
device.
Typical Application
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5
SYNCHRONOUS ETHERNET WAN PLL
MICROPROCESSOR INTERFACE
The microprocessor interface provides access to read and write the
registers in the device. The microprocessor interface supports the following six modes:
• EPROM mode;
• Multiplexed mode;
• Intel mode;
• Motorola mode;
• Serial mode.
• I2C mode
The microprocessor interface mode is selected by the
MPU_SEL_CNFG[2:0] bits (b2~0, 7FH). The interface pins in different
interface modes are listed in Table 32 and Table 33.
Table 32: Microprocessor Interface
MPU_SEL_CNFG[2:0] bits
Microprocessor Interface Mode
Interface Pins
001
EPROM
CS, A[6:0], AD[7:0]
010
Multiplexed
CS, ALE, WR, RD, AD[7:0], RDY
011
Intel
CS, WR, RD, A[6:0], AD[7:0], RDY
100
Motorola
CS, WR, A[6:0], AD[7:0], RDY
101
Serial
CS, SCLK, SDI, SDO, CLKE
110
I2C
I2C_AD[2:0], I2C_SDA, I2C_SCL
111
Serial
CS, SCLK, SDI, SDO, CLKE
Microprocessor Interface
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Table 33: Microprocessor Interface Pins
MODE
PIN
EPROM
MULTIPLEXED
INTEL
MOTOROLA
SERIAL
I2C
A0 / SDI
OUTPUT
INPUT (Note 1)
INPUT
INPUT
INPUT
INPUT
(Note 1)
A1 / CLKE
OUTPUT
INPUT (Note 1)
INPUT
INPUT
INPUT
INPUT
(Note 1)
A2
OUTPUT
INPUT (Note 1)
INPUT
INPUT
INPUT (Note 1)
INPUT
(Note 1)
A3
OUTPUT
INPUT (Note 1)
INPUT
INPUT
INPUT (Note 1)
INPUT
(Note 1)
A4
OUTPUT
INPUT (Note 1)
INPUT
INPUT
INPUT (Note 1)
INPUT
(Note 1)
A5
OUTPUT
INPUT (Note 1)
INPUT
INPUT
INPUT (Note 1)
INPUT
(Note 1)
A6
OUTPUT
INPUT
(Note 1
INPUT
INPUT
INPUT (Note 1)
INPUT
(Note 1)
AD0/SD0/I2C_SDA
INPUT
INPUT/OUTPUT
INPUT/OUTPUT
INPUT/OUTPUT
OUTPUT
INPUT/OUTPUT
AD[7:1]
INPUT
INPUT/OUTPUT
INPUT/OUTPUT
INPUT/OUTPUT
INPUT (Note 1)
INPUT (Note 1)
CS/I2C_AD0
OUTPUT
INPUT
INPUT
INPUT
INPUT
INPUT
WR/I2C_AD1
INPUT (Note 1)
INPUT
INPUT
INPUT
INPUT (Note 1)
INPUT
RD/I2C_AD2
INPUT (Note 1)
INPUT
INPUT
INPUT (Note 1)
INPUT (Note 1)
INPUT
RDY (Note 2)
Output (Note 1
OUTPUT
OUTPUT
OUTPUT
Output (Note 1)
Output (Note 1)
ALE/SCLK/I2C_SCL
INPUT (Note 1)
INPUT
INPUT (Note 1)
INPUT (Note 1)
INPUT
INPUT
After reset de-assertion, wait 10 us for the mode to be active.
Note 1: This pin is not used in this mode, this pin should be connected to ground
Note 2: This pin is open drain
Microprocessor Interface
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5.1
SYNCHRONOUS ETHERNET WAN PLL
EPROM MODE
internal counter controls the read operations to the EPROM data. The
value of ID[15:0] is checked with the device ID of our chip. If the number
is matched, The configuration data will be automatically read from the
EPROM.
When the MPU_SEL_CNFG[2:0] bits (b2~0, 7FH) is set to ‘001’,
EPROM mode is selected. In this mode, the device is used with an
EPROM, in which configuration data is stored in a sequential way. The
address 0 of configuration data is corresponding the register 00H. An
CS
A[6:0]
address
tacc
AD[7:0]
data
High-Z
High-Z
Figure 18. EPROM Access Timing Diagram
Table 34: Access Timing Characteristics in EPROM Mode
Symbol
Parameter
tacc
CS to valid data delay time
Microprocessor Interface
Min
51
Typ
Max
Unit
920
ns
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IDT82V3390 DATASHEET
5.2
SYNCHRONOUS ETHERNET WAN PLL
MULTIPLEXED MODE
tT
tpw3
ALE
tsu1
th1
CS
tsu2
WR
tpw1
th2
RD
td1
AD[7:0]
RDY
td4
data
address
High-Z
td2
tpw2
th3
td5
High-Z
td6
Figure 19. Multiplexed Read Timing Diagram
Table 35: Read Timing Characteristics in Multiplexed Mode
Symbol
Parameter
T
One cycle time of the master clock
12.86
ns
tin
Delay of input pad
5
ns
Microprocessor Interface
Min
52
Typ
Max
Unit
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Table 35: Read Timing Characteristics in Multiplexed Mode
Symbol
Parameter
Min
Typ
Max
tout
Delay of output pad
tsu1
Valid address to ALE falling edge setup time
2
ns
tsu2
Valid CS to Valid RD setup time
0
ns
td1
Valid RD to valid data delay time
td2
Valid CS to valid RDY delay time
13
ns
td4
RD rising edge to AD[7:0] high impedance delay time
10
ns
td5
RD rising edge to RDY low delay time
13
ns
td6
CS rising edge to RDY release delay time
13
ns
5
Unit
ns
5T + 10
ns
tpw1
Valid RD pulse width low
4.5T + 10 *
ns
tpw2
Valid RDY pulse width low
4.5T + 10
ns
tpw3
Valid ALE pulse width high
2
ns
th1
Valid address after ALE falling edge hold time
3
ns
th2
Valid CS after RD rising edge hold time
0
ns
th3
Valid RD after RDY rising edge hold time
0
ns
tT
Time between ALE falling edge and RD falling edge
0
ns
tTI
Time between consecutive Read-Read or Read-Write accesses
(RD rising edge to ALE rising edge)
>T
ns
Note:
* Timing with RDY. If RDY is not used, tpw1 is 3.5T + 10.
tpw3
tT
ALE
tsu1
th1
CS
RD
th2
tpw1
tsu2
WR
th4
tsu3
AD[7:0]
address
data
td2
RDY
tpw2
th3
td5
High-Z
High-Z
td6
Figure 20. Multiplexed Write Timing Diagram
Microprocessor Interface
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Table 36: Write Timing Characteristics in Multiplexed Mode
Symbol
Parameter
Min
Typ
Max
Unit
T
One cycle time of the master clock
12.86
ns
tin
Delay of input pad
5
ns
tout
Delay of output pad
5
ns
tsu1
Valid address to ALE falling edge setup time
2
ns
tsu2
Valid CS to valid WR setup time
0
ns
tsu3
Valid data to WR rising edge setup time
3
ns
td2
Valid CS to valid RDY delay time
13
ns
td5
WR rising edge to RDY low delay time
13
ns
td6
CS rising edge to RDY release delay time
13
ns
tpw1
Valid WR pulse width low
1.5T + 10
ns
tpw2
Valid RDY pulse width low
1.5T + 10
ns
tpw3
Valid ALE pulse width high
2
ns
th1
Valid address after ALE falling edge hold time
3
ns
th2
Valid CS after WR rising edge hold time
0
ns
th3
Valid WR after RDY rising edge hold time
0
ns
th4
Valid data after WR rising edge hold time
9
ns
tT
Time between ALE falling edge and WR falling edge
0
ns
tTI
Time between consecutive Write-Read or Write-Write accesses
(WR rising edge to ALE rising edge)
>7T
ns
Microprocessor Interface
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5.3
SYNCHRONOUS ETHERNET WAN PLL
INTEL MODE
CS
WR
tpw1
tsu2
th2
RD
th1
tsu1
A[6:0]
address
AD[7:0]
td4
td1
High-Z
High-Z
data
td2
tpw2
th3
td5
High-Z
High-Z
RDY
td6
Figure 21. Intel Read Timing Diagram
Table 37: Read Timing Characteristics in Intel Mode
Symbol
Parameter
Min
Typ
Max
Unit
T
One cycle time of the master clock
12.86
ns
tin
Delay of input pad
5
ns
tout
Delay of output pad
tsu1
Valid address to valid CS setup time
0
ns
tsu2
Valid CS to valid RD setup time
0
ns
td1
Valid RD to valid data delay time
td2
Valid CS to valid RDY delay time
13
ns
td4
RD rising edge to AD[7:0] high impedance delay time
10
ns
td5
RD rising edge to RDY low delay time
13
ns
td6
CS rising edge to RDY release delay time
13
ns
tpw1
Valid RD pulse width low
4.5T + 10 *
ns
tpw2
Valid RDY pulse width low
4.5T + 10
ns
th1
Valid address after RD rising edge hold time
0
ns
th2
5
ns
5T + 10
ns
Valid CS after RD rising edge hold time
0
ns
th3
Valid RD after RDY rising edge hold time
0
ns
tTI
Time between consecutive Read-Read or Read-Write accesses
(RD rising edge to RD falling edge, or RD rising edge to WR falling edge)
>T
ns
Note:
* Timing with RDY. If RDY is not used, tpw1 is 3.5T + 10.
Microprocessor Interface
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CS
WR
tpw1
tsu2
th2
RD
th1
tsu1
A[6:0]
AD[7:0]
address
High-Z
data
td2
RDY
td4
td1
High-Z
tpw2
th3
td5
High-Z
High-Z
td6
Figure 22. Intel Write Timing Diagram
Table 38: Write Timing Characteristics in Intel Mode
Symbol
Parameter
Min
Typ
Max
Unit
T
One cycle time of the master clock
12.86
ns
tin
Delay of input pad
5
ns
tout
Delay of output pad
5
ns
tsu1
Valid address to valid CS setup time
0
ns
tsu2
Valid CS to valid WR setup time
0
ns
tsu3
Valid data before WR rising edge setup time
3
ns
td2
Valid CS to valid RDY delay time
13
ns
td5
WR rising edge to RDY low delay time
13
ns
td6
CS rising edge to RDY release delay time
13
ns
tpw1
Valid WR pulse width low
1.5T + 10
tpw2
Valid RDY pulse width low
1.5T + 10
ns
th1
Valid address after WR rising edge hold time
0
ns
th2
Valid CS after WR rising edge hold time
0
ns
th3
Valid WR after RDY rising edge hold time
0
ns
th4
Valid data after WR rising edge hold time
9
ns
tTI
Time between consecutive Write-Read or Write-Write accesses
(WR rising edge to WR falling edge, or WR rising edge to RD falling edge)
>7T
ns
Microprocessor Interface
56
ns
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IDT82V3390 DATASHEET
5.4
SYNCHRONOUS ETHERNET WAN PLL
MOTOROLA MODE
tpw1
CS
th2
tsu2
WR
th1
tsu1
address
A[6:0]
td3
td1
AD[7:0]
High-Z
data
td2
High-Z
th3
tpw2
td4
tr1
High-Z
RDY
High-Z
Figure 23. Motorola Read Timing Diagram
Table 39: Read Timing Characteristics in Motorola Mode
Symbol
Parameter
Min
Typ
Max
Unit
T
One cycle time of the master clock
12.86
tin
Delay of input pad
5
ns
tout
Delay of output pad
5
ns
tsu1
Valid address to valid CS setup time
0
ns
tsu2
Valid WR to valid CS setup time
0
ns
td1
Valid CS to valid data delay time
td2
Valid CS to valid RDY delay time
13
ns
td3
CS rising edge to AD[7:0] high impedance delay time
10
ns
td4
CS rising edge to RDY release delay time
13
ns
5T + 10
ns
Valid CS pulse width low
4.5T + 10 *
tpw2
Valid RDY pulse width high
4.5T + 10
ns
th1
Valid address after CS rising edge hold time
0
ns
th2
Valid WR after CS rising edge hold time
0
ns
th3
Valid CS after RDY falling edge hold time
0
ns
tr1
RDY release time
tTI
Time between consecutive Read-Read or Read-Write accesses
(CS rising edge to CS falling edge)
tpw1
ns
3
>T
ns
ns
Note:
* Timing with RDY. If RDY is not used, tpw1 is 3.5T +10.
Microprocessor Interface
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tpw1
CS
th2
tsu2
WR
tsu1
th1
A[6:0]
address
th4
tsu3
AD[7:0]
data
td2
th3
tpw2
td4
tr1
High-Z
High-Z
RDY
Figure 24. Motorola Write Timing Diagram
Table 40: Write Timing Characteristics in Motorola Mode
Symbol
Parameter
Min
Typ
Max
Unit
T
One cycle time of the master clock
12.86
ns
tin
Delay of input pad
5
ns
tout
Delay of output pad
5
ns
tsu1
Valid address to valid CS setup time
0
ns
tsu2
Valid WR to valid CS setup time
0
ns
tsu3
Valid data before CS rising edge setup time
3
td2
Valid CS to valid RDY delay time
13
ns
td4
CS rising edge to RDY release delay time
13
ns
tpw1
Valid CS pulse width low
5T
ns
tpw2
Valid RDY pulse width high
5T
ns
th1
Valid address after valid CS rising edge hold time
0
ns
th2
Valid WR after valid CS rising edge hold time
0
ns
th3
Valid CS after RDY falling edge hold time
0
ns
th4
Valid data after valid CS rising edge hold time
9
ns
tr1
RDY release time
tTI
Time between consecutive Write-Write or Write-Read accesses
(CS rising edge to CS falling edge)
Microprocessor Interface
ns
3
58
> 7T
ns
ns
July 14, 2011
IDT82V3390 DATASHEET
5.5
SYNCHRONOUS ETHERNET WAN PLL
SERIAL MODE
ing edge of SCLK. When CLKE is asserted high, data on SDO will be
clocked out on the falling edge of SCLK.
In a read operation, the active edge of SCLK is selected by CLKE.
When CLKE is asserted low, data on SDO will be clocked out on the ris-
In a write operation, data on SDI will be clocked in on the rising edge
of SCLK.
CS
SCLK
tsu1
th1
R/
W
SDI
th2
tpw2
tsu2
tpw1
A0
A1
A2
A3
A4
A5
A6
td1
High-Z
SDO
td2
D0
D1
D2
D3
D4
D5
D6
D7
Figure 25. Serial Read Timing Diagram (CLKE Asserted Low)
CS
th2
SCLK
SDI
R/
W
A0
A1
A2
A3
A4
A5
A6
td1
High-Z
SDO
td2
D0
D1
D2
D3
D4
D5
D6
D7
Figure 26. Serial Read Timing Diagram (CLKE Asserted High)
Table 41: Read Timing Characteristics in Serial Mode
Symbol
Parameter
Min
Typ
Max
Unit
T
One cycle time of the master clock
12.86
ns
tin
Delay of input pad
5
ns
tout
Delay of output pad
5
ns
tsu1
Valid SDI to valid SCLK setup time
4
ns
tsu2
Valid CS to valid SCLK setup time
14
ns
td1
Valid SCLK to valid data delay time
10
ns
td2
CS rising edge to SDO high impedance delay time
10
ns
tpw1
SCLK pulse width low
5T + 10
ns
tpw2
SCLK pulse width high
5T + 10
ns
th1
Valid SDI after valid SCLK hold time
6
ns
th2
Valid CS after valid SCLK hold time (CLKE = 0/1)
5
ns
tTI
Time between consecutive Read-Read or Read-Write accesses
(CS rising edge to CS falling edge)
10
ns
Microprocessor Interface
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CS
tsu2
SCLK
th1
tpw1
tsu1
SDI
th2
tpw2
R/
W
A0
A1
A2
A3
A4
A5
A6
D0
D1
D2
D3
D4
D5
D6
D7
High-Z
SDO
Figure 27. Serial Write Timing Diagram
Table 42: Write Timing Characteristics in Serial Mode
Symbol
Parameter
Min
Typ
Max
Unit
T
One cycle time of the master clock
12.86
ns
tin
Delay of input pad
5
ns
tout
Delay of output pad
5
ns
tsu1
Valid SDI to valid SCLK setup time
4
ns
tsu2
Valid CS to valid SCLK setup time
14
ns
tpw1
SCLK pulse width low
5T+10
ns
tpw2
SCLK pulse width high
5T+10
ns
th1
Valid SDI after valid SCLK hold time
6
ns
th2
Valid CS after valid SCLK hold time
5
ns
tTI
Time between consecutive Write-Write or Write-Read accesses
(CS rising edge to CS falling edge)
10
ns
Microprocessor Interface
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5.6
I2C MODE
5.6.1
I2C DEVICE ADDRESS
5.6.2
I2C BUS TIMING
Figure 28 shows the definition of I2C bus timing.
The higher 4-bit address is fixed to 4’b1010. The lower 3-bit address
is set by pins I2C_AD2, I2C_AD1, I2C_AD0.
SDA
MSB
tLOW
tHD:STA
tBUF
SCL
tHD:STA
s
tHIGH
tSU:STA
tSU:STO
sr
s
P
Figure 28. Definition of I2C Bus Timing
Table 43: Description of Timing Parameters of I2C Master Interface
Symbol
Description
fSCL
SCL clock frequency
tSCL
SCL clock period
tSU:DAT
Data setup time
tHD:DAT
Data hold time
tHD:STA
Hold time for (repeated) START condition
tLOW
LOW period of the SCL clock
tHIGH
HIGH period of the SCL clock
tSU:STA
Setup time for a repeated START condition
tSU:STO
Setup time for STOP condition
tBUF
5.6.3
Bus free time between a STOP and START condition
SUPPORTED TRANSACTIONS
The supported types of transactions are shown below.
Current Read
S
Dev Addr + R
A
Data 0
A
Data 1
A
A
Data n
A
P
Sequential Read
S
Dev Addr + W
A
Offset Addr
A
A
Offset Addr
A
Sr
Dev Addr + R
A
Data 0
Data 1
A
A
Data 1
A
A
Data n
A
P
Sequential Write
S
Dev Addr + W
from master to slave
from slave to master
Data 0
A
A
Data n
A
P
S = start
Sr= repeated start
A = acknowledge
A = not acknowledge
P = stop
Figure 29. I2C Slave Interface Supported Transactions
Microprocessor Interface
61
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IDT82V3390 DATASHEET
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Table 44: Description of I2C Slave Interface Supported Transactions
Operation
Description
Current Read
Reads a burst of data from an internal determined starting address, this starting address is equal to the last address accessed
during the last read or write operation, increment by one. If the address exceeds the address space, it will start from 0 again.
Sequential Read
Reads a burst of data from a specified address space. The starting address of the space is specified as offset address.
Sequential Write
Writes a burst of data to a specified address space, the starting address of the space is specified as offset address.
Microprocessor Interface
62
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IDT82V3390 DATASHEET
6
SYNCHRONOUS ETHERNET WAN PLL
JTAG
This device is compliant with the IEEE 1149.1 Boundary Scan standard except the following:
• The output boundary scan cells do not capture data from the
core and the device does not support EXTEST instruction;
• The TRST pin is set low by default and JTAG is disabled in order
to be consistent with other manufacturers.
The JTAG interface timing diagram is shown in Figure 30.
tTCK
TCK
tS
tH
TMS
TDI
tD
TDO
Figure 30. JTAG Interface Timing Diagram
Table 45: JTAG Timing Characteristics
Symbol
Parameter
Min
tTCK
TCK period
100
ns
ns
JTAG
tS
TMS / TDI to TCK setup time
25
tH
TCK to TMS / TDI Hold Time
25
tD
TCK to TDO delay time
Typ
Max
ns
50
63
Unit
ns
July 14, 2011
IDT82V3390 DATASHEET
7
SYNCHRONOUS ETHERNET WAN PLL
PROGRAMMING INFORMATION
The access of the Multi-word Registers is different from that of the
Single-word Registers. Take the registers (04H, 05H and 06H) for an
example, the write operation for the Multi-word Registers follows a fixed
sequence. The register (04H) is configured first and the register (06H) is
configured last. The three registers are configured continuously and
should not be interrupted by any operation. The crystal calibration configuration will take effect after all the three registers are configured. During read operation, the register (04H) is read first and the register (06H)
is read last. The crystal calibration reading should be continuous and not
be interrupted by any operation.
After reset, all the registers are set to their default values. The registers are read or written via the microprocessor interface.
Before any write operation, the value in register
PROTECTION_CNFG is recommended to be confirmed to make sure
whether the write operation is enabled. The device provides 3 register
protection modes:
• Protected mode: no other registers can be written except register
PROTECTION_CNFG itself;
• Fully Unprotected mode: all the writable registers can be written;
• Single Unprotected mode: one more register can be written
besides register PROTECTION_CNFG. After write operation
(not including writing a ‘1’ to clear a bit to ‘0’), the device automatically switches to Protected mode.
Certain bit locations within the device register map are designated as
Reserved. To ensure proper and predictable operation, bits designated
as Reserved must be set with their default values.
Writing ‘0’ to the registers will take no effect if the registers are
cleared by writing ‘1’.
7.1
REGISTER MAP
Table 46 depicts the map of all the registers sorted in an ascending
order of their addresses.
T0 and T4 paths share some registers, whose addresses are 26H ~
2CH, 4EH, 4FH, 5AH, 5BH, 62H ~ 64H, 68H and 69H. The names of
shared registers are marked with a *. Before register read/write operation, register T4_T0_REG_SEL_CNFG is recommended to be confirmed to make sure whether the register operation is available for T0 or
T4 path.
Table 46: Register List and Map
Address
(Hex)
Register Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Reference
Page
Global Control Registers
00
01
02
04
05
06
07
08
09
0A
ID[7:0] - Device ID 1
ID[15:8] - Device ID 2
MPU_PIN_STS - MPU_MODE[2:0]
Pins Status
NOMINAL_FREQ[7:0]_CNFG - Crystal Oscillator Frequency Offset Calibration Configuration 1
NOMINAL_FREQ[15:8]_CNFG - Crystal Oscillator Frequency Offset Calibration Configuration 2
NOMINAL_FREQ[23:16]_CNFG
Crystal Oscillator Frequency Offset
Calibration Configuration 3
T4_T0_REG_SEL_CNFG - T0 / T4
Registers Selection Configuration
PHASE_ALARM_TIME_OUT_CNFG Phase Lock Alarm Time-Out Configuration
ID[7:0]
ID[15:8]
-
-
-
-
-
-
-
MPU_PIN_STS[2:0]
P 71
NOMINAL_FREQ_VALUE[7:0]
P 71
NOMINAL_FREQ_VALUE[15:8]
P 72
NOMINAL_FREQ_VALUE[23:16]
P 72
-
T4_T0_SE
L
MULTI_FACTOR[1:0]
-
-
-
-
P 72
TIME_OUT_VALUE[5:0]
PH_ALAR
AUTO_EX
EXT_SYN
INPUT_MODE_CNFG - Input Mode
M_TIMEO
T_SYNC_
C_EN
Configuration
UT
EN
DIFFERENTIAL_IN_OUT_OSCI_CNF
G - Differential Input / Output Port &
Master Clock Configuration
Programming Information
P 70
P 71
64
SYNC_FREQ[1:0]
-
P 73
IN_SONET MASTER_ REVERTIV
_SDH
SLAVE
E_MODE
P 74
OSC_EDG OUT7_PE OUT6_PE
E
CL_LVDS CL_LVDS
P 75
July 14, 2011
IDT82V3390 DATASHEET
SYNCHRONOUS ETHERNET WAN PLL
Table 46: Register List and Map (Continued)
Address
(Hex)
0B
13
7E
7F
0C
0D
0E
0F
10
11
12
14
15
16
17
18
19
1A
1B
1C
1D
1E
Register Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
FREQ_MO
LOS_FLA
MON_SW_HS_CNFG - Frequency
ULTR_FAS
FREQ_MO
EXT_SW HS_FREZ HS_EN
N_HARD_
G_TO_TD
Monitor, Input Clock Selection & HS
T_SW
N_CLK
EN
O
Control
MS_SL_CTRL_CNFG - Master Slave
MS_SL_C
Control
TRL
PROTECTION_CNFG - Register ProPROTECTION_DATA[7:0]
tection Mode Configuration
MPU_SEL_CNFG - Microprocessor
MPU_SEL_CNFG[2:0]
Interface Mode Configuration
Interrupt Registers
INTERRUPT_CNFG - Interrupt ConHZ_EN
INT_POL
figuration
INTERRUPTS1_STS - Interrupt Status
IN[8:1]
1
T0_OPER T0_MAIN_
INTERRUPTS2_STS - Interrupt Status
IN[14:9]
ATING_MO REF_FAIL
2
ED
DE
INTERRUPTS3_STS - Interrupt Status EX_SYNC
INPUT_TO AMI2_VIO
AMI1_VIO
T4_STS
AMI2_LOS
AMI1_LOS
3
_ALARM
_T4
L
L
INTERRUPTS1_ENABLE_CNFG
IN[8:1]
Interrupt Control 1
T0_OPER T0_MAIN_
INTERRUPTS2_ENABLE_CNFG
ATING_MO REF_FAIL
IN[14:9]
Interrupt Control 2
DE
ED
INTERRUPTS3_ENABLE_CNFG
- EX_SYNC
INPUT_TO AMI2_VIO
AMI1_VIO
T4_STS
AMI2_LOS
AMI1_LOS
Interrupt Control 3
_ALARM
_T4
L
L
Input Clock Frequency & Priority Configuration Registers
IN1_CNFG - Input Clock 1 Configura400HZ_SE
BUCKET_SEL[1:0]
IN_FREQ[3:0]
L
tion
IN2_CNFG - Input Clock 2 Configura400HZ_SE
BUCKET_SEL[1:0]
IN_FREQ[3:0]
tion
L
IN3_CNFG - Input Clock 3 Configura- DIRECT_D
LOCK_8K
BUCKET_SEL[1:0]
IN_FREQ[3:0]
tion
IV
IN4_CNFG - Input Clock 4 Configura- DIRECT_D
LOCK_8K
BUCKET_SEL[1:0]
IN_FREQ[3:0]
tion
IV
IN5_IN6_HF_DIV_CNFG - Input Clock
5 & 6 High Frequency Divider ConfiguIN6_DIV[1:0]
IN5_DIV[1:0]
ration
IN5_CNFG - Input Clock 5 Configura- DIRECT_D
LOCK_8K
BUCKET_SEL[1:0]
IN_FREQ[3:0]
tion
IV
IN6_CNFG - Input Clock 6 Configura- DIRECT_D
LOCK_8K
BUCKET_SEL[1:0]
IN_FREQ[3:0]
tion
IV
IN7_CNFG - Input Clock 7 Configura- DIRECT_D
LOCK_8K
BUCKET_SEL[1:0]
IN_FREQ[3:0]
tion
IV
IN8_CNFG - Input Clock 8 Configura- DIRECT_D
LOCK_8K
BUCKET_SEL[1:0]
IN_FREQ[3:0]
tion
IV
IN9_CNFG - Input Clock 9 Configura- DIRECT_D
LOCK_8K
BUCKET_SEL[1:0]
IN_FREQ[3:0]
tion
IV
IN10_CNFG - Input Clock 10 Configu- DIRECT_D
LOCK_8K
BUCKET_SEL[1:0]
IN_FREQ[3:0]
ration
IV
Programming Information
65
Reference
Page
P 76
P 77
P 77
P 78
P 79
P 79
P 80
P 81
P 82
P 82
P 83
P 84
P 84
P 85
P 86
P 87
P 88
P 89
P 90
P 91
P 92
P 93
July 14, 2011
IDT82V3390 DATASHEET
SYNCHRONOUS ETHERNET WAN PLL
Table 46: Register List and Map (Continued)
Address
(Hex)
1F
20
21
22
23
24
25
26
27
28
29
2A
2B
2C
2E
2F
30
31
32
Register Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
IN11_CNFG - Input Clock 11 Configu- DIRECT_D
LOCK_8K
BUCKET_SEL[1:0]
IN_FREQ[3:0]
ration
IV
IN12_CNFG - Input Clock 12 Configu- DIRECT_D
LOCK_8K
BUCKET_SEL[1:0]
IN_FREQ[3:0]
ration
IV
IN13_CNFG - Input Clock 13 Configu- DIRECT_D
LOCK_8K
BUCKET_SEL[1:0]
IN_FREQ[3:0]
ration
IV
IN14_CNFG - Input Clock 14 Configu- DIRECT_D
LOCK_8K
BUCKET_SEL[1:0]
IN_FREQ[3:0]
ration
IV
PRE_DIV_CH_CNFG - DivN Divider
PRE_DIV_CH_VALUE[3:0]
Channel Selection
PRE_DIVN[7:0]_CNFG - DivN Divider
PRE_DIVN_VALUE[7:0]
Division Factor Configuration 1
PRE_DIVN[14:8]_CNFG
DivN
PRE_DIVN_VALUE[14:8]
Divider Division Factor Configuration 2
IN1_IN2_SEL_PRIORITY_CNFG
Input Clock 1 & 2 Priority Configuration
IN2_SEL_PRIORITY[3:0]
IN1_SEL_PRIORITY[3:0]
*
IN3_IN4_SEL_PRIORITY_CNFG
Input Clock 3 & 4 Priority Configuration
IN4_SEL_PRIORITY[3:0]
IN3_SEL_PRIORITY[3:0]
*
IN5_IN6_SEL_PRIORITY_CNFG
Input Clock 5 & 6 Priority Configuration
IN6_SEL_PRIORITY[3:0]
IN5_SEL_PRIORITY[3:0]
*
IN7_IN8_SEL_PRIORITY_CNFG
Input Clock 7 & 8 Priority Configuration
IN8_SEL_PRIORITY[3:0]
IN7_SEL_PRIORITY[3:0]
*
IN9_IN10_SEL_PRIORITY_CNFG Input Clock 9 & 10 Priority ConfiguraIN10_SEL_PRIORITY[3:0]
IN9_SEL_PRIORITY[3:0]
tion *
IN11_IN12_SEL_PRIORITY_CNFG Input Clock 11 & 12 Priority ConfiguraIN12_SEL_PRIORITY[3:0]
IN11_SEL_PRIORITY[3:0]
tion *
IN13_IN14_SEL_PRIORITY_CNFG Input Clock 13 & 14 Priority ConfiguraIN14_SEL_PRIORITY[3:0]
IN13_SEL_PRIORITY[3:0]
tion *
Input Clock Quality Monitoring Configuration & Status Registers
FREQ_MON_FACTOR_CNFG - FacFREQ_MON_FACTOR[3:0]
tor of Frequency Monitor Configuration
HARD_FREQ_MON_THRESHOLD_C
NFG - Frequency Monitor Threshold
HARD_FREQ_MON_THRESHOLD[7:4]
HARD_FREQ_MON_THRESHOLD[3:0]
for Hard Input Clocks Configuration
SOFT_FREQ_MON_THRESHOLD_C
NFG - Frequency Monitor Threshold
SOFT_FREQ_MON_THRESHOLD[7:4]
SOFT_FREQ_MON_THRESHOLD[3:0]
for Soft Input Clocks Configuration
UPPER_THRESHOLD_0_CNFG
Upper Threshold for Leaky Bucket
UPPER_THRESHOLD_0_DATA[7:0]
Configuration 0
LOWER_THRESHOLD_0_CNFG
Lower Threshold for Leaky Bucket
LOWER_THRESHOLD_0_DATA[7:0]
Configuration 0
Programming Information
66
Reference
Page
P 94
P 95
P 96
P 97
P 98
P 98
P 99
P 100
P 101
P 102
P 103
P 104
P 105
P 106
P 107
P 108
P 108
P 109
P 109
July 14, 2011
IDT82V3390 DATASHEET
SYNCHRONOUS ETHERNET WAN PLL
Table 46: Register List and Map (Continued)
Address
(Hex)
33
34
35
36
37
38
39
3A
3B
3C
3D
3E
3F
40
41
42
43
44
45
46
Register Name
BUCKET_SIZE_0_CNFG - Bucket
Size for Leaky Bucket Configuration 0
DECAY_RATE_0_CNFG - Decay Rate
for Leaky Bucket Configuration 0
UPPER_THRESHOLD_1_CNFG
Upper Threshold for Leaky Bucket
Configuration 1
LOWER_THRESHOLD_1_CNFG
Lower Threshold for Leaky Bucket
Configuration 1
BUCKET_SIZE_1_CNFG - Bucket
Size for Leaky Bucket Configuration 1
DECAY_RATE_1_CNFG - Decay Rate
for Leaky Bucket Configuration 1
UPPER_THRESHOLD_2_CNFG
Upper Threshold for Leaky Bucket
Configuration 2
LOWER_THRESHOLD_2_CNFG
Lower Threshold for Leaky Bucket
Configuration 2
BUCKET_SIZE_2_CNFG - Bucket
Size for Leaky Bucket Configuration 2
DECAY_RATE_2_CNFG - Decay Rate
for Leaky Bucket Configuration 2
UPPER_THRESHOLD_3_CNFG
Upper Threshold for Leaky Bucket
Configuration 3
LOWER_THRESHOLD_3_CNFG
Lower Threshold for Leaky Bucket
Configuration 3
BUCKET_SIZE_3_CNFG - Bucket
Size for Leaky Bucket Configuration 3
DECAY_RATE_3_CNFG - Decay Rate
for Leaky Bucket Configuration 3
IN_FREQ_READ_CH_CNFG - Input
Clock Frequency Read Channel
Selection
IN_FREQ_READ_STS - Input Clock
Frequency Read Value
Bit 7
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
BUCKET_SIZE_0_DATA[7:0]
-
-
-
-
-
-
-
-
-
P 109
-
DECAY_RATE_0_DATA
[1:0]
P 110
P 110
LOWER_THRESHOLD_1_DATA[7:0]
P 110
BUCKET_SIZE_1_DATA[7:0]
P 111
-
-
-
-
DECAY_RATE_1_DATA
[1:0]
P 111
UPPER_THRESHOLD_2_DATA[7:0]
P 111
LOWER_THRESHOLD_2_DATA[7:0]
P 112
BUCKET_SIZE_2_DATA[7:0]
P 112
-
-
-
-
DECAY_RATE_2_DATA
[1:0]
P 112
UPPER_THRESHOLD_3_DATA[7:0]
P 113
LOWER_THRESHOLD_3_DATA[7:0]
P 113
BUCKET_SIZE_3_DATA[7:0]
P 113
-
-
-
-
-
-
-
-
-
DECAY_RATE_3_DATA
[1:0]
IN_FREQ_READ_CH[3:0]
IN2_NO_A
CTIVITY_A
LARM
IN4_NO_A
CTIVITY_A
LARM
IN6_NO_A
CTIVITY_A
LARM
IN8_NO_A
CTIVITY_A
LARM
67
IN2_PH_L
OCK_ALA
RM
IN4_PH_L
OCK_ALA
RM
IN6_PH_L
OCK_ALA
RM
IN8_PH_L
OCK_ALA
RM
IN1_FREQ
_SOFT_AL
ARM
IN3_FREQ
_SOFT_AL
ARM
IN5_FREQ
_SOFT_AL
ARM
IN7_FREQ
_SOFT_AL
ARM
P 114
P 114
IN_FREQ_VALUE[7:0]
IN2_FREQ
_HARD_A
LARM
IN4_FREQ
_HARD_A
LARM
IN6_FREQ
_HARD_A
LARM
IN8_FREQ
_HARD_A
LARM
Reference
Page
UPPER_THRESHOLD_1_DATA[7:0]
-
IN2_FREQ
IN1_IN2_STS - Input Clock 1 & 2 Sta_SOFT_AL
tus
ARM
IN4_FREQ
IN3_IN4_STS - Input Clock 3 & 4 Sta_SOFT_AL
tus
ARM
IN6_FREQ
IN5_IN6_STS - Input Clock 5 & 6 Sta_SOFT_AL
tus
ARM
IN8_FREQ
IN7_IN8_STS - Input Clock 7 & 8 Sta_SOFT_AL
tus
ARM
Programming Information
Bit 6
P 115
IN1_FREQ
_HARD_A
LARM
IN3_FREQ
_HARD_A
LARM
IN5_FREQ
_HARD_A
LARM
IN7_FREQ
_HARD_A
LARM
IN1_NO_A
CTIVITY_A
LARM
IN3_NO_A
CTIVITY_A
LARM
IN5_NO_A
CTIVITY_A
LARM
IN7_NO_A
CTIVITY_A
LARM
IN1_PH_L
OCK_ALA
RM
IN3_PH_L
OCK_ALA
RM
IN5_PH_L
OCK_ALA
RM
IN7_PH_L
OCK_ALA
RM
P 116
P 117
P 118
P 119
July 14, 2011
IDT82V3390 DATASHEET
SYNCHRONOUS ETHERNET WAN PLL
Table 46: Register List and Map (Continued)
Address
(Hex)
47
48
49
4A
4B
4C
4D
4E
4F
50
51
52
53
54
55
56
57
58
59
Register Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
IN10_FRE IN10_FRE IN10_NO_ IN10_PH_ IN9_FREQ IN9_FREQ IN9_NO_A IN9_PH_L
IN9_IN10_STS - Input Clock 9 & 10
Q_SOFT_ Q_HARD_ ACTIVITY_ LOCK_AL _SOFT_AL _HARD_A CTIVITY_A OCK_ALA
Status
RM
LARM
LARM
ARM
ARM
ALARM
ALARM
ALARM
IN12_FRE IN12_FRE IN12_NO_ IN12_PH_ IN11_FRE IN11_FRE IN11_NO_ IN11_PH_L
IN11_IN12_STS - Input Clock 11 & 12
Q_SOFT_ Q_HARD_ ACTIVITY_ LOCK_AL Q_SOFT_ Q_HARD_ ACTIVITY_ OCK_ALA
Status
ALARM
ALARM
ALARM
ARM
ALARM
ALARM
ALARM
RM
IN14_FRE IN14_FRE IN14_NO_ IN14_PHA IN13_FRE IN13_FRE IN13_NO_ IN13_PHA
IN13_IN14_STS - Input Clock 13 & 14
Q_SOFT_ Q_HARD_ ACTIVITY_ SE_LOCK Q_SOFT_ Q_HARD_ ACTIVITY_ SE_LOCK
Status
ALARM
ALARM
ALARM
_ALARM
ALARM
ALARM
ALARM
_ALARM
T0 / T4 DPLL Input Clock Selection Registers
INPUT_VALID1_STS - Input Clocks
IN[8:1]
Validity 1
INPUT_VALID2_STS - Input Clocks
IN[14:9]
Validity 2
REMOTE_INPUT_VALID1_CNFG IN8_VALID IN7_VALID IN6_VALID IN5_VALID IN4_VALID IN3_VALID IN2_VALID IN1_VALID
Input Clocks Validity Configuration 1
REMOTE_INPUT_VALID2_CNFG IN14_VALI IN13_VALI IN12_VALI IN11_VALI IN10_VALI
IN9_VALID
Input Clocks Validity Configuration 2
D
D
D
D
D
PRIORITY_TABLE1_STS - Priority
HIGHEST_PRIORITY_VALIDATED[3:0]
CURRENTLY_SELECTED_INPUT[3:0]
Status 1 *
PRIORITY_TABLE2_STS - Priority
SECOND_HIGHEST_PRIORITY_VALIDATED[3:0
THIRD_HIGHEST_PRIORITY_VALIDATED[3:0]
Status 2 *
]
T0_INPUT_SEL_CNFG - T0 Selected
T0_INPUT_SEL[3:0]
Input Clock Configuration
T4_INPUT_SEL_CNFG - T4 Selected
T4_LOCK_ T0_FOR_T T4_TEST_
T4_INPUT_SEL[3:0]
Input Clock Configuration
T0
4
T0_PH
T0 / T4 DPLL State Machine Control Registers
T0_DPLL_ T4_DPLL_
EX_SYNC
T4_DPLL_ SOFT_FR SOFT_FR T0_DPLL_
OPERATING_STS - DPLL Operating
T0_DPLL_OPERATING_MODE[2:0]
_ALARM_
LOCK
EQ_ALAR EQ_ALRA
LOCK
Status
MON
M
M
T0_OPERATING_MODE_CNFG - T0
T0_OPERATING_MODE[2:0]
DPLL Operating Mode Configuration
T4_OPERATING_MODE_CNFG - T4
T4_OPERATING_MODE[2:0]
DPLL Operating Mode Configuration
T0 / T4 DPLL & APLL Configuration Registers
T0_DPLL_APLL_PATH_CNFG - T0
T0_GSM_OBSAI_16E1 T0_12E1_24T1_E3_T3
T0_APLL_PATH[3:0]
_16T1_SEL[1:0]
_SEL[1:0]
DPLL & APLL Path Configuration
T0_DPLL_START_BW_DAMPING_C
NFG - T0 DPLL Start Bandwidth & T0_DPLL_START_DAMPING[2:0]
T0_DPLL_START_BW[4:0]
Damping Factor Configuration
T0_DPLL_ACQ_BW_DAMPING_CNF
G - T0 DPLL Acquisition Bandwidth & T0_DPLL_ACQ_DAMPING[2:0]
T0_DPLL_ACQ_BW[4:0]
Damping Factor Configuration
T0_DPLL_LOCKED_BW_DAMPING_
CNFG - T0 DPLL Locked Bandwidth & T0_DPLL_LOCKED_DAMPING[2:0]
T0_DPLL_LOCKED_BW[4:0]
Damping Factor Configuration
T0_BW_OVERSHOOT_CNFG - T0
AUTO_BW
T0_LIMT
DPLL Bandwidth Overshoot Configu_SEL
ration
Programming Information
68
Reference
Page
P 120
P 121
P 122
P 123
P 123
P 123
P 124
P 124
P 125
P 125
P 126
P 127
P 128
P 128
P 129
P 130
P 131
P 132
P 133
July 14, 2011
IDT82V3390 DATASHEET
SYNCHRONOUS ETHERNET WAN PLL
Table 46: Register List and Map (Continued)
Address
(Hex)
5A
5B
5C
5D
5E
5F
60
61
62
63
64
65
66
67
68
69
6A
Register Name
PHASE_LOSS_COARSE_LIMIT_CNF
G - Phase Loss Coarse Detector Limit
Configuration *
PHASE_LOSS_FINE_LIMIT_CNFG Phase Loss Fine Detector Limit Configuration *
T0_HOLDOVER_MODE_CNFG - T0
DPLL Holdover Mode Configuration
T0_HOLDOVER_FREQ[7:0]_CNFG T0 DPLL Holdover Frequency Configuration 1
T0_HOLDOVER_FREQ[15:8]_CNFG
- T0 DPLL Holdover Frequency Configuration 2
T0_HOLDOVER_FREQ[23:16]_CNFG
- T0 DPLL Holdover Frequency Configuration 3
T4_DPLL_APLL_PATH_CNFG - T4
DPLL & APLL Path Configuration
T4_DPLL_LOCKED_BW_DAMPING_
CNFG - T4 DPLL Locked Bandwidth &
Damping Factor Configuration
CURRENT_DPLL_FREQ[7:0]_STS DPLL Current Frequency Status 1 *
CURRENT_DPLL_FREQ[15:8]_STS DPLL Current Frequency Status 2 *
CURRENT_DPLL_FREQ[23:16]_STS
- DPLL Current Frequency Status 3 *
DPLL_FREQ_SOFT_LIMIT_CNFG DPLL Soft Limit Configuration
DPLL_FREQ_HARD_LIMIT[7:0]_CNF
G - DPLL Hard Limit Configuration 1
DPLL_FREQ_HARD_LIMIT[15:8]_CN
FG - DPLL Hard Limit Configuration 2
CURRENT_DPLL_PHASE[7:0]_STS DPLL Current Phase Status 1 *
CURRENT_DPLL_PHASE[15:8]_STS
- DPLL Current Phase Status 2 *
T0_T4_APLL_BW_CNFG - T0 / T4
APLL Bandwidth Configuration
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
MULTI_PH
COARSE_
MULTI_PH
_8K_4K_2
PH_LOS_COARSE_LIMT[3:0]
PH_LOS_L WIDE_EN
_APP
K_EN
IMT_EN
FINE_PH_
FAST_LOS
LOS_LIMT
PH_LOS_FINE_LIMT[2:0]
_SW
_EN
MAN_HOL AUTO_AV
READ_AV TEMP_HOLDOVER_M
FAST_AVG
DOVER
G
G
ODE[1:0]
P 135
P 136
P 136
T0_HOLDOVER_FREQ[15:8]
P 137
T0_HOLDOVER_FREQ[23:16]
P 137
T4_DPLL_LOCKED_DAMPING[2:0]
T4_GSM_GPS_16E1_1 T4_12E1_24T1_E3_T3
6T1_SEL[1:0]
_SEL[1:0]
P 138
T4_DPLL_LOCKED_B
W[1:0]
P 139
-
-
-
CURRENT_DPLL_FREQ[7:0]
P 139
CURRENT_DPLL_FREQ[15:8]
P 139
CURRENT_DPLL_FREQ[23:16]
P 140
FREQ_LIM
T_PH_LOS
DPLL_FREQ_SOFT_LIMT[6:0]
-
P 134
T0_HOLDOVER_FREQ[7:0]
T4_APLL_PATH[3:0]
-
Reference
Page
P 140
DPLL_FREQ_HARD_LIMT[7:0]
P 140
DPLL_FREQ_HARD_LIMT[15:8]
P 141
CURRENT_PH_DATA[7:0]
P 141
CURRENT_PH_DATA[15:8]
P 141
T0_APLL_BW[2:0]
T4_APLL_BW[2:0]
P 142
Output Configuration Registers
6B
6C
6D
6E
OUT1_FREQ_CNFG - Output Clock 1
Frequency Configuration
OUT2_FREQ_CNFG - Output Clock 2
Frequency Configuration
OUT3_FREQ_CNFG - Output Clock 3
Frequency Configuration
OUT4_FREQ_CNFG - Output Clock 4
Frequency Configuration
Programming Information
OUT1_PATH_SEL[3:0]
OUT1_DIVIDER[3:0]
P 143
OUT2_PATH_SEL[3:0]
OUT2_DIVIDER[3:0]
P 144
OUT3_PATH_SEL[3:0]
OUT3_DIVIDER[3:0]
P 145
OUT4_PATH_SEL[3:0]
OUT4_DIVIDER[3:0]
P 146
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Table 46: Register List and Map (Continued)
Address
(Hex)
Register Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Reference
Page
Bit 0
OUT5_FREQ_CNFG - Output Clock 5
OUT5_PATH_SEL[3:0]
OUT5_DIVIDER[3:0]
Frequency Configuration
OUT6_FREQ_CNFG - Output Clock 6
OUT6_PATH_SEL[3:0]
OUT6_DIVIDER[3:0]
Frequency Configuration
OUT7_FREQ_CNFG - Output Clock 7
OUT7_PATH_SEL[3:0]
OUT7_DIVIDER[3:0]
Frequency Configuration
OUT8_FREQ_CNFG - Output Clock 8
OUT8_PAT
T4_INPUT AMI_OUT_ 400HZ_SE
Frequency Configuration & Output
OUT8_EN
OUT9_INV OUT7_INV OUT6_INV
H_SEL
_FAIL
DUTY
L
Clock 6, 7 & 9 Invert Configuration
OUT9_FREQ_CNFG - Output Clock 9
OUT9_PAT
T4_INPUT
Frequency Configuration & Output
OUT9_EN
OUT5_INV OUT4_INV OUT3_INV OUT2_INV OUT1_INV
H_SEL
_FAIL
Clock 1 ~ 5 Invert Configuration
FR_MFR_SYNC_CNFG - Frame Sync
2K_8K_PU
IN_2K_4K_
& Multiframe Sync Output Configura8K_EN
2K_EN
L_POSITI 8K_INV
8K_PUL
2K_INV
2K_PUL
8K_INV
tion
ON
Phase Offset Control Registers
PHASE_MON_CNFG - Phase Tran- IN_NOISE
sient Monitor Configuration
_WINDOW
PHASE_OFFSET[7:0]_CNFG - Phase
PH_OFFSET[7:0]
Offset Configuration 1
PHASE_OFFSET[9:8]_CNFG - Phase PH_OFFS
PH_OFFSET[9:8]
Offset Configuration 2
ET_EN
Synchronization Configuration Registers
SYNC_MONITOR_CNFG - Sync MonSYNC_MON_LIMT[2:0]
itor Configuration
SYNC_PHASE_CNFG - Sync Phase
SYNC_PH1[1:0]
Configuration
6F
70
71
72
73
74
78
7A
7B
7C
7D
7.2
REGISTER DESCRIPTION
7.2.1
GLOBAL CONTROL REGISTERS
P 147
P 148
P 149
P 150
P 151
P 152
P 154
P 154
P 154
P 155
P 155
ID[7:0] - Device ID 1
Address: 00H
Type: Read
Default Value: 10010000
7
6
5
4
3
2
1
0
ID7
ID6
ID5
ID4
ID3
ID2
ID1
ID0
Bit
Name
7-0
ID[7:0]
Programming Information
Description
Refer to the description of the ID[15:8] bits (b7~0, 01H).
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ID[15:8] - Device ID 2
Address: 01H
Type: Read
Default Value: 00110011
7
6
5
4
3
2
1
0
ID15
ID14
ID13
ID12
ID11
ID10
ID9
ID8
Bit
Name
Description
7-0
ID[15:8]
The value in the ID[15:0] bits are pre-set, representing the identification number for the IDT82V3390.
MPU_PIN_STS - MPU_MODE[2:0] Pins Status
Address: 02H
Type: Read
Default Value: XXXXXXXX
7
6
5
4
3
2
1
0
-
-
-
-
-
MPU_PIN_STS2
MPU_PIN_STS1
MPU_PIN_STS0
Bit
Name
7-3
-
Description
Reserved.
These bits indicate the value of the MPU_MODE[2:0] pins.
The default value of these bits is determined by the MPU_MODE[2:0] pins during reset.
000: Reserved
001: EPROM mode
010: Multiplexed mode
MPU_PIN_STS[2:0]
011: Intel mode
100: Motorola mode
101: Serial mode
110: I2C mode
111: Serial mode
2-0
NOMINAL_FREQ[7:0]_CNFG - Crystal Oscillator Frequency Offset Calibration Configuration 1
Address: 04H
Type: Read / Write
Default Value: 00000000
7
6
5
4
3
2
1
0
NOMINAL_FRE
Q_VALUE7
NOMINAL_FRE
Q_VALUE6
NOMINAL_FRE
Q_VALUE5
NOMINAL_FRE
Q_VALUE4
NOMINAL_FRE
Q_VALUE3
NOMINAL_FRE
Q_VALUE2
NOMINAL_FRE
Q_VALUE1
NOMINAL_FRE
Q_VALUE0
Bit
7-0
Name
Description
NOMINAL_FREQ_VALUE[7:0] Refer to the description of the NOMINAL_FREQ_VALUE[23:16] bits (b7~0, 06H).
Programming Information
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NOMINAL_FREQ[15:8]_CNFG - Crystal Oscillator Frequency Offset Calibration Configuration 2
Address: 05H
Type: Read / Write
Default Value: 00000000
7
6
5
4
3
2
1
0
NOMINAL_FRE
Q_VALUE15
NOMINAL_FRE
Q_VALUE14
NOMINAL_FRE
Q_VALUE13
NOMINAL_FRE
Q_VALUE12
NOMINAL_FRE
Q_VALUE11
NOMINAL_FRE
Q_VALUE10
NOMINAL_FRE
Q_VALUE9
NOMINAL_FRE
Q_VALUE8
Bit
Name
7-0
Description
NOMINAL_FREQ_VALUE[15:8] Refer to the description of the NOMINAL_FREQ_VALUE[23:16] bits (b7~0, 06H).
NOMINAL_FREQ[23:16]_CNFG - Crystal Oscillator Frequency Offset Calibration Configuration 3
Address: 06H
Type: Read / Write
Default Value: 00000000
7
6
5
4
3
2
1
0
NOMINAL_FRE
Q_VALUE23
NOMINAL_FRE
Q_VALUE22
NOMINAL_FRE
Q_VALUE21
NOMINAL_FRE
Q_VALUE20
NOMINAL_FRE
Q_VALUE19
NOMINAL_FRE
Q_VALUE18
NOMINAL_FRE
Q_VALUE17
NOMINAL_FRE
Q_VALUE16
Bit
7-0
Name
Description
The NOMINAL_FREQ_VALUE[23:0] bits represent a 2’s complement signed integer. The calibration value for the master
clock in ppm is obtained by multiplying this register value by 0.0000884.
For example, the frequency offset on OSCI is +3 ppm. Although -3 ppm should be compensated, the calibration value is
NOMINAL_FREQ_VALUE[23:16] calculated as +3 ppm:
3 ÷ 0.0000884 = 33937 (Dec.) = 8490 (Hex);
So ‘008490’ should be written into these bits.
The calibration range is within ±741 ppm.
T4_T0_REG_SEL_CNFG - T0 / T4 Registers Selection Configuration
Address: 07H
Type: Read / Write
Default Value: XXX0XXXX
7
6
5
4
3
2
1
0
-
-
-
T4_T0_SEL
-
-
-
-
Bit
Name
Description
7-5
-
4
T4_T0_SEL
3-0
-
Reserved.
A part of the registers are shared by T0 and T4 paths. These registers are addressed 26H ~ 2CH, 4EH, 4FH, 5AH, 5BH, 62H ~
64H, 68H and 69H. This bit determines whether the register configuration is available for T0 or T4 path.
0: T0 path (default).
1: T4 path.
Reserved.
Programming Information
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PHASE_ALARM_TIME_OUT_CNFG - Phase Lock Alarm Time-Out Configuration
Address: 08H
Type: Read / Write
Default Value: 00110010
7
6
5
4
3
2
1
0
MULTI_FACTO
R1
MULTI_FACTO
R0
TIME_OUT_VA
LUE5
TIME_OUT_VA
LUE4
TIME_OUT_VA
LUE3
TIME_OUT_VA
LUE2
TIME_OUT_VA
LUE1
TIME_OUT_VAL
UE0
Bit
7-6
5-0
Name
Description
These bits determine a factor which has a relationship with a period in seconds. A phase lock alarm will be raised if the T0
selected input clock is not locked in T0 DPLL within this period. If the PH_ALARM_TIMEOUT bit (b5, 09H) is ‘1’, the
phase lock alarm will be cleared after this period (starting from when the alarm is raised). Refer to the description of the
TIME_OUT_VALUE[5:0] bits (b5~0, 08H).
MULTI_FACTOR[1:0]
00: 2 (default)
01: 4
10: 8
11: 16
These bits represent an unsigned integer. The value of these bits multiplied by the value in the MULTI_FACTOR[1:0] bits
(b7~6, 08H) is equal to the period in seconds.
TIME_OUT_VALUE[5:0] A phase lock alarm will be raised if the T0 selected input clock is not locked in T0 DPLL within this period. If the
PH_ALARM_TIMEOUT bit (b5, 09H) is ‘1’, the phase lock alarm will be cleared after this period (starting from when the
alarm is raised).
Programming Information
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INPUT_MODE_CNFG - Input Mode Configuration
Address: 09H
Type: Read / Write
Default Value: 10100XX0
7
6
5
4
3
2
1
0
AUTO_EXT_SY
NC_EN
EXT_SYNC_EN
PH_ALARM_TI
MEOUT
SYNC_FREQ1
SYNC_FREQ0
IN_SONET_SD
H
MASTER_SLAV
E
REVERTIVE_M
ODE
Bit
7
6
5
4-3
2
1
0
Name
Description
AUTO_EXT_SYNC_EN Refer to the description of the EXT_SYNC_EN bit (b6, 09H).
This bit, together with the AUTO_EXT_SYNC_EN bit (b7, 09H), determines whether EX_SYNC1 is enabled to synchronize
the frame sync output signals.
EXT_SYNC_EN
AUTO_EXT_SYNC_EN
EXT_SYNC_EN
Synchronization
don’t-care
0
1
0
1
1
Disabled (default)
Enabled
Enabled if the T0 selected input clock is IN11; otherwise, disabled.
This bit determines how to clear the phase lock alarm.
0: The phase lock alarm will be cleared when a ‘1’ is written to the corresponding INn_PH_LOCK_ALARM bit (b4/0,
PH_ALARM_TIMEOUT 43H~49H).
1: The phase lock alarm will be cleared after a period (= TIME_OUT_VALUE[5:0] (b5~0, 08H) X MULTI_FACTOR[1:0]
(b7~6, 08H) in second) which starts from when the alarm is raised. (default)
These bits set the frequency of the frame sync signal input on the EX_SYNC1 pin.
00: 8 kHz (default)
SYNC_FREQ[1:0] 01: 8 kHz.
10: 4 kHz.
11: 2 kHz.
This bit selects the SDH or SONET network type.
0: SDH. The DPLL required clock is 2.048 MHz when the IN_FREQ[3:0] bits (b3~0, 14H~17H & 19H~22H) are ‘0001’; the
T0/T4 DPLL output from the 16E1/16T1 path is 16E1; and OUT9 outputs a 2.048 MHz signal if enabled.
IN_SONET_SDH
1: SONET. The DPLL required clock is 1.544 MHz when the IN_FREQ[3:0] bits (b3~0, 14H~17H & 19H~22H) are ‘0001’; the
T0/T4 DPLL output from the 16E1/16T1 path is 16T1; and OUT9 outputs a 1.544 MHz signal if enabled.
The default value of this bit is determined by the SONET/SDH pin during reset.
This bit is read only. It indicates the value of the MS/SL pin.
Its default value is determined by the MS/SL pin during reset.
This bit selects Revertive or Non-Revertive switching for T0 path.
REVERTIVE_MODE 0: Non-Revertive switching. (default)
1: Revertive switching.
MASTER_SLAVE
Programming Information
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DIFFERENTIAL_IN_OUT_OSCI_CNFG - Differential Input / Output Port & Master Clock Configuration
Address: 0AH
Type: Read / Write
Default Value: XXXXX001
7
6
5
4
3
2
1
0
-
-
-
-
-
OSC_EDGE
OUT7_PECL_LVDS
OUT6_PECL_LVDS
Bit
Name
7-3
-
2
1
0
Description
Reserved.
This bit selects a better active edge of the master clock.
OSC_EDGE
0: The rising edge. (default)
1: The falling edge.
This bit selects a port technology for OUT7.
OUT7_PECL_LVDS 0: LVDS. (default)
1: PECL.
This bit selects a port technology for OUT6.
OUT6_PECL_LVDS 0: LVDS.
1: PECL. (default)
Programming Information
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MON_SW_HS_CNFG - Frequency Monitor, Input Clock Selection & HS Control
Address: 0BH
Type: Read / Write
Default Value: 100X01X1
7
6
5
4
3
2
1
0
FREQ_MON_C
LK
LOS_FLAG_TO
_TDO
ULTR_FAST_SW
EXT_SW
HS_FREZ
HS_EN
-
FREQ_MON_H
ARD_EN
Bit
7
6
5
4
3
2
1
0
Name
Description
The bit selects a reference clock for input clock frequency monitoring.
0: The output of T0 DPLL.
1: The master clock. (default)
The bit determines whether the interrupt of T0 selected input clock fail - is reported by the TDO pin.
0: Not reported. TDO pin is used as JTAG test data output which complies with IEEE 1149.1. (default)
LOS_FLAG_TO_TDO
1: Reported. TDO pin mimics the state of the T0_MAIN_REF_FAILED bit (b6, 0EH) and does not strictly comply with IEEE
1149.1.
This bit determines whether the T0 selected input clock is valid when missing 2 consecutive clock cycles or more.
ULTR_FAST_SW
0: Valid. (default)
1: Invalid.
This bit determines the T0 input clock selection.
0: Forced selection or Automatic selection, as controlled by the T0_INPUT_SEL[3:0] bits (b3~0, 50H).
EXT_SW
1: External Fast selection.
The default value of this bit is determined by the FF_SRCSW pin during reset.
This bit is valid only when the HS is enabled by the HS_EN bit (b2, 0BH). It determines whether HS is frozen at the current
phase offset when a HS event is triggered.
HS_FREZ
0: Not frozen. (default)
1: Frozen. Further HS events are ignored and the current phase offset is maintained.
This bit determines whether HS is enabled when the T0 selected input clock switch or the T0 DPLL exiting from Holdover
mode or Free-Run mode occurs.
HS_EN
0: Disabled.
1: Enabled. (default)
Reserved.
This bit determines whether the frequency hard alarm is enabled when the frequency of the input clock with respect to the
reference clock is above the frequency hard alarm threshold. The reference clock can be the output of T0 DPLL or the masFREQ_MON_HARD_EN ter clock, as determined by the FREQ_MON_CLK bit (b7, 0BH).
0: Disabled.
1: Enabled. (default)
FREQ_MON_CLK
Programming Information
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MS_SL_CTRL_CNFG - Master Slave Control
Address: 13H
Type: Read / Write
Default Value: 00001xx00
7
6
5
4
3
2
1
0
APLL
APLL
APLL
APLL
APLL
-
-
MS_SL_CTRL
Bit
Name
Description
7-3
APLL Settings
2-1
-
For best jitter performance, the following bits in the MS_SL_CTRL_CNFG, T0_T4_APLL_BW_CNFG and APLL_CNFG registers must be set.
Bit 7 to Bit 3 of MS_SL_CTRL_CNFG register (address 13H) must be set to 01010.
Bit 6 to Bit 0 of T0_T4_APLL_BW_CNFG (address 6AH) must be set to 1010010.
Bit 7 of APLL_CNFG (address 77H) must be set to 0.
Reserved.
These bits, together with the MS/SL pin, control whether the device is configured as the Master or as the Slave.
Master/Slave Control
MS/SL pin
0
MS_SL_CTRL
Result
MS_SL_CTRL Bit
0
1
0
1
High
Low
Master
Slave
Slave
Master
The default value of this bit is ‘0’.
PROTECTION_CNFG - Register Protection Mode Configuration
Address: 7EH
Type: Read / Write
Default Value: 10000101
7
6
5
4
3
2
1
0
PROTECTION_
DATA7
PROTECTION_
DATA6
PROTECTION_
DATA5
PROTECTION_
DATA4
PROTECTION_
DATA3
PROTECTION_
DATA2
PROTECTION_
DATA1
PROTECTION_
DATA0
Bit
7-0
Name
Description
These bits select a register write protection mode.
00000000 - 10000100, 10000111 - 11111111: Protected mode. No other registers can be written except this register.
PROTECTION_DATA[7:0] 10000101: Fully Unprotected mode. All the writable registers can be written. (default)
10000110: Single Unprotected mode. One more register can be written besides this register. After write operation (not
including writing a ‘1’ to clear the bit to ‘0’), the device automatically switches to Protected mode.
Programming Information
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MPU_SEL_CNFG - Microprocessor Interface Mode Configuration
Address: 7FH
Type: Read / Write
Default Value: XXXXXXXX
7
6
5
4
3
2
1
0
-
-
-
-
-
MPU_SEL_CNFG2
MPU_SEL_CNFG1
MPU_SEL_CNFG0
Bit
Name
7-3
-
2-0
Description
Reserved.
These bits select a microprocessor interface mode:
000: Reserved.
001: EPROM mode.
010: Multiplexed mode.
011: Intel mode.
MPU_SEL_CNFG[2:0]
100: Motorola mode.
101: Serial mode.
110: I2C mode.
111: Serial mode.
The default value of these bits are determined by the MPU_MODE[2:0] pins during reset.
Programming Information
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7.2.2
SYNCHRONOUS ETHERNET WAN PLL
INTERRUPT REGISTERS
INTERRUPT_CNFG - Interrupt Configuration
Address: 0CH
Type: Read / Write
Default Value: XXXXXX10
7
6
5
4
3
2
1
0
-
-
-
-
-
-
HZ_EN
INT_POL
Bit
Name
Description
7-2
-
1
HZ_EN
0
INT_POL
Reserved.
This bit determines the output characteristics of the INT_REQ pin.
0: The output on the INT_REQ pin is high/low when the interrupt is active; the output is the opposite when the interrupt is inactive.
1: The output on the INT_REQ pin is high/low when the interrupt is active; the output is in high impedance state when the interrupt
is inactive. (default)
This bit determines the active level on the INT_REQ pin for an active interrupt indication.
0: Active low. (default)
1: Active high.
INTERRUPTS1_STS - Interrupt Status 1
Address: 0DH
Type: Read / Write
Default Value: 11111111
7
6
5
4
3
2
1
0
IN8
IN7
IN6
IN5
IN4
IN3
IN2
IN1
Bit
7-0
Name
Description
INn
This bit indicates the validity changes (from ‘valid’ to ‘invalid’ or from ‘invalid’ to ‘valid’) for the corresponding INn; i.e., whether
there is a transition (from ‘0’ to ‘1’ or from ‘1’ to ‘0’) on the corresponding INn bit (b7~0, 4AH). Here n is any one of 8 to 1.
0: Has not changed.
1: Has changed. (default)
This bit is cleared by writing a ‘1’.
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INTERRUPTS2_STS - Interrupt Status 2
Address: 0EH
Type: Read / Write
Default Value: 00111111
7
6
5
4
3
2
1
0
T0_OPERATING
_MODE
T0_MAIN_REF_F
AILED
IN14
IN13
IN12
IN11
IN10
IN9
Bit
7
6
5-0
Name
Description
This bit indicates the operating mode switch for T0 DPLL; i.e., whether the value in the
T0_DPLL_OPERATING_MODE[2:0] bits (b2~0, 52H) changes.
T0_OPERATING_MODE 0: Has not switched. (default)
1: Has switched.
This bit is cleared by writing a ‘1’.
This bit indicates whether the T0 selected input clock has failed. The T0 selected input clock fails when its validity
changes from ‘valid’ to ‘invalid’; i.e., when there is a transition from ‘1’ to ‘0’ on the corresponding INn bit (4AH, 4BH).
T0_MAIN_REF_FAILED 0: Has not failed. (default)
1: Has failed.
This bit is cleared by writing a ‘1’.
This bit indicates the validity changes (from ‘valid’ to ‘invalid’ or from ‘invalid’ to ‘valid’) for the corresponding INn for T0
path, i.e., whether there is a transition (from ‘0’ to ‘1’ or from ‘1’ to ‘0’) on the corresponding INn bit (b5~0, 4BH). Here n
is any one of 14 to 9.
INn
0: Has not changed.
1: Has changed. (default)
This bit is cleared by writing a ‘1’.
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INTERRUPTS3_STS - Interrupt Status 3
Address: 0FH
Type: Read / Write
Default Value: 11X10000
7
6
5
4
3
2
1
0
EX_SYNC_ALARM
T4_STS
-
INPUT_TO_T4
AMI2_VIOL
AMI2_LOS
AMI1_VIOL
AMI1_LOS
Bit
7
6
5
4
3
2
1
0
Name
Description
This bit indicates whether an external sync alarm is raised; i.e., whether there is a transition from ‘0’ to ‘1’ on the
EX_SYNC_ALARM_MON bit (b7, 52H).
EX_SYNC_ALARM 0: Has not occurred.
1: Has occurred. (default)
This bit is cleared by writing a ‘1’.
This bit indicates the T4 DPLL locking status changes (from ‘locked’ to ‘unlocked’ or from ‘unlocked’ to ‘locked’); i.e., whether
there is a transition (from ‘0’ to ‘1’ or from ‘1’ to ‘0’) on the T4_DPLL_LOCK bit (b6, 52H).
T4_STS
0: Has not changed.
1: Has changed. (default)
This bit is cleared by writing a ‘1’.
Reserved.
This bit indicates whether all the input clocks for T4 path changes to be unqualified; i.e., whether the
HIGHEST_PRIORITY_VALIDATED[3:0] bits (b7~4, 4EH) are set to ‘0000’ when these bits are available for T4 path.
INPUT_TO_T4 0: Has not changed.
1: Has changed. (default)
This bit is cleared by writing a ‘1’.
This bit indicates whether IN2 has an AMI violation.
0: Has no AMI violation. (default)
AMI2_VIOL
1: Has an AMI violation.
This bit is cleared by writing a ‘1’.
This bit indicates whether IN2 has a LOS error.
0: Has no LOS error. (default)
AMI2_LOS
1: Has a LOS error.
This bit is cleared by writing a ‘1’.
This bit indicates whether IN1 has an AMI violation.
0: Has no AMI violation. (default)
AMI1_VIOL
1: Has an AMI violation.
This bit is cleared by writing a ‘1’.
This bit indicates whether IN1 has a LOS error.
0: Has no LOS error. (default)
AMI1_LOS
1: Has a LOS error.
This bit is cleared by writing a ‘1’.
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INTERRUPTS1_ENABLE_CNFG - Interrupt Control 1
Address: 10H
Type: Read / Write
Default Value: 00000000
7
6
5
4
3
2
1
0
IN8
IN7
IN6
IN5
IN4
IN3
IN2
IN1
Bit
7-0
Name
Description
INn
This bit controls whether the interrupt is enabled to be reported on the INT_REQ pin when the input clock validity changes (from
‘valid’ to ‘invalid’ or from ‘invalid’ to ‘valid’), i.e., when the corresponding INn bit (b7~0, 0DH) is ‘1’. Here n is any one of 8 to 1.
0: Disabled. (default)
1: Enabled.
INTERRUPTS2_ENABLE_CNFG - Interrupt Control 2
Address: 11H
Type: Read / Write
Default Value: 00000000
7
6
5
4
3
2
1
0
T0_OPERATING
_MODE
T0_MAIN_REF_F
AILED
IN14
IN13
IN12
IN11
IN10
IN9
Bit
7
6
5-0
Name
Description
This bit controls whether the interrupt is enabled to be reported on the INT_REQ pin when the T0 DPLL operating mode
switches, i.e., when the T0_OPERATING_MODE bit (b7, 0EH) is ‘1’.
T0_OPERATING_MODE
0: Disabled. (default)
1: Enabled.
This bit controls whether the interrupt is enabled to be reported on the INT_REQ pin when the T0 selected input clock
has failed; i.e., when the T0_MAIN_REF_FAILED bit (b6, 0EH) is ‘1’.
T0_MAIN_REF_FAILED
0: Disabled. (default)
1: Enabled.
This bit controls whether the interrupt is enabled to be reported on the INT_REQ pin when the input clock validity
changes (from ‘valid’ to ‘invalid’ or from ‘invalid’ to ‘valid’), i.e., when the corresponding INn bit (b5~0, 0EH) is ‘1’. Here n
is any one of 14 to 9.
INn
0: Disabled. (default)
1: Enabled.
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INTERRUPTS3_ENABLE_CNFG - Interrupt Control 3
Address: 12H
Type: Read / Write
Default Value: 00X00000
7
6
5
4
3
2
1
0
EX_SYNC_ALARM
T4_STS
-
INPUT_TO_T4
AMI2_VIOL
AMI2_LOS
AMI1_VIOL
AMI1_LOS
Bit
7
6
5
4
3
2
1
0
Name
Description
This bit controls whether the interrupt is enabled to be reported on the INT_REQ pin when an external sync alarm has
occurred, i.e., when the EX_SYNC_ALARM bit (b7, 0FH) is ‘1’.
EX_SYNC_ALARM
0: Disabled. (default)
1: Enabled.
This bit controls whether the interrupt is enabled to be reported on the INT_REQ pin when the T4 DPLL locking status
changes (from ‘locked’ to ‘unlocked’ or from ‘unlocked’ to ‘locked’), i.e., when the T4_STS bit (b6, 0FH) is ‘1’.
T4_STS
0: Disabled. (default)
1: Enabled.
Reserved.
This bit controls whether the interrupt is enabled to be reported on the INT_REQ pin when all the input clocks for T4 path
change to be unqualified, i.e., when the INPUT_TO_T4 bit (b4, 0FH) is ‘1’.
INPUT_TO_T4
0: Disabled. (default)
1: Enabled.
This bit controls whether the interrupt is enabled to be reported on the INT_REQ pin when IN2 has AMI violation, i.e., when the
AMI2_VIOL bit (b3, 0FH) is ‘1’.
AMI2_VIOL
0: Disabled. (default)
1: Enabled.
This bit controls whether the interrupt is enabled to be reported on the INT_REQ pin when IN2 has LOS error, i.e., when the
AMI2_LOS bit (b2, 0FH) is ‘1’.
AMI2_LOS
0: Disabled. (default)
1: Enabled.
This bit controls whether the interrupt is enabled to be reported on the INT_REQ pin when IN1 has AMI violation, i.e., when the
AMI1_VIOL bit (b1, 0FH) is ‘1’.
AMI1_VIOL
0: Disabled. (default)
1: Enabled.
This bit controls whether the interrupt is enabled to be reported on the INT_REQ pin when IN1 has LOS error, i.e., when the
AMI1_LOS bit (b0, 0FH) is ‘1’.
AMI1_LOS
0: Disabled. (default)
1: Enabled.
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7.2.3
SYNCHRONOUS ETHERNET WAN PLL
INPUT CLOCK FREQUENCY & PRIORITY CONFIGURATION REGISTERS
IN1_CNFG - Input Clock 1 Configuration
Address: 14H
Type: Read / Write
Default Value: X0000000
7
6
5
4
3
2
1
0
-
400HZ_SEL
BUCKET_SEL1
BUCKET_SEL0
IN_FREQ3
IN_FREQ2
IN_FREQ1
IN_FREQ0
Bit
Name
7
-
Description
Reserved.
This bit should be set to match the clock input on IN1:
400HZ_SEL
0: 64 kHz + 8 kHz. (default)
1: 64 kHz + 8 kHz + 0.4 kHz.
These bits select one of the four groups of leaky bucket configuration registers for IN1:
00: Group 0; the addresses of the configuration registers are 31H ~ 34H. (default)
BUCKET_SEL[1:0] 01: Group 1; the addresses of the configuration registers are 35H ~ 38H.
10: Group 2; the addresses of the configuration registers are 39H ~ 3CH.
11: Group 3; the addresses of the configuration registers are 3DH ~ 40H.
These bits set the DPLL required frequency for IN1:
IN_FREQ[3:0] 0000: 8 kHz. (default)
0001 ~ 1111: Reserved.
6
5-4
3-0
IN2_CNFG - Input Clock 2 Configuration
Address: 15H
Type: Read / Write
Default Value: X0000000
7
6
5
4
3
2
1
0
-
400HZ_SEL
BUCKET_SEL1
BUCKET_SEL0
IN_FREQ3
IN_FREQ2
IN_FREQ1
IN_FREQ0
Bit
Name
7
-
6
5-4
3-0
Description
Reserved.
This bit should be set to match the clock input on IN2:
400HZ_SEL
0: 64 kHz + 8 kHz. (default)
1: 64 kHz + 8 kHz + 0.4 kHz.
These bits select one of the four groups of leaky bucket configuration registers for IN2:
00: Group 0; the addresses of the configuration registers are 31H ~ 34H. (default)
BUCKET_SEL[1:0] 01: Group 1; the addresses of the configuration registers are 35H ~ 38H.
10: Group 2; the addresses of the configuration registers are 39H ~ 3CH.
11: Group 3; the addresses of the configuration registers are 3DH ~ 40H.
These bits set the DPLL required frequency for IN2:
IN_FREQ[3:0] 0000: 8 kHz. (default)
0001 ~ 1111: Reserved.
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IN3_CNFG - Input Clock 3 Configuration
Address: 16H
Type: Read / Write
Default Value: 00000000
7
6
5
4
3
2
1
0
DIRECT_DIV
LOCK_8K
BUCKET_SEL1
BUCKET_SEL0
IN_FREQ3
IN_FREQ2
IN_FREQ1
IN_FREQ0
Bit
Name
Description
7
DIRECT_DIV
Refer to the description of the LOCK_8K bit (b6, 16H).
This bit, together with the DIRECT_DIV bit (b7, 16H), determines whether the DivN Divider or the Lock 8k Divider is used for
IN3:
6
5-4
3-0
LOCK_8K
DIRECT_DIV bit
LOCK_8K bit
Used Divider
0
0
1
1
0
1
0
1
Both bypassed (default)
Lock 8k Divider
DivN Divider
Reserved
These bits select one of the four groups of leaky bucket configuration registers for IN3:
00: Group 0; the addresses of the configuration registers are 31H ~ 34H. (default)
BUCKET_SEL[1:0] 01: Group 1; the addresses of the configuration registers are 35H ~ 38H.
10: Group 2; the addresses of the configuration registers are 39H ~ 3CH.
11: Group 3; the addresses of the configuration registers are 3DH ~ 40H.
These bits set the DPLL required frequency for IN3:
0000: 8 kHz. (default)
0001: 1.544 MHz (when the IN_SONET_SDH bit (b2, 09H) is ‘1’) / 2.048 MHz (when the IN_SONET_SDH bit (b2, 09H) is ‘0’).
0010: 6.48 MHz.
0011: 19.44 MHz.
0100: 25.92 MHz.
0101: 38.88 MHz.
IN_FREQ[3:0]
0110 ~ 1000: Reserved.
1001: 2 kHz.
1010: 4 kHz.
1011: Reserved.
1100: 6.25 MHz.
1101 ~ 1111: Reserved.
For IN3, the required frequency should not be set higher than that clock.
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IN4_CNFG - Input Clock 4 Configuration
Address: 17H
Type: Read / Write
Default Value: 00000000
7
6
5
4
3
2
1
0
DIRECT_DIV
LOCK_8K
BUCKET_SEL1
BUCKET_SEL0
IN_FREQ3
IN_FREQ2
IN_FREQ1
IN_FREQ0
Bit
Name
Description
7
DIRECT_DIV
Refer to the description of the LOCK_8K bit (b6, 17H).
This bit, together with the DIRECT_DIV bit (b7, 17H), determines whether the DivN Divider or the Lock 8k Divider is used for
IN4:
6
5-4
3-0
LOCK_8K
DIRECT_DIV bit
LOCK_8K bit
Used Divider
0
0
1
1
0
1
0
1
Both bypassed (default)
Lock 8k Divider
DivN Divider
Reserved
These bits select one of the four groups of leaky bucket configuration registers for IN4:
00: Group 0; the addresses of the configuration registers are 31H ~ 34H. (default)
BUCKET_SEL[1:0] 01: Group 1; the addresses of the configuration registers are 35H ~ 38H.
10: Group 2; the addresses of the configuration registers are 39H ~ 3CH.
11: Group 3; the addresses of the configuration registers are 3DH ~ 40H.
These bits set the DPLL required frequency for IN4:
0000: 8 kHz. (default)
0001: 1.544 MHz (when the IN_SONET_SDH bit (b2, 09H) is ‘1’) / 2.048 MHz (when the IN_SONET_SDH bit (b2, 09H) is ‘0’).
0010: 6.48 MHz.
0011: 19.44 MHz.
0100: 25.92 MHz.
0101: 38.88 MHz.
IN_FREQ[3:0]
0110 ~ 1000: Reserved.
1001: 2 kHz.
1010: 4 kHz.
1011: Reserved.
1100: 6.25 MHz.
1101 ~ 1111: Reserved.
For the IN4, the required frequency should not be set higher than that clock.
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IN5_IN6_HF_DIV_CNFG - Input Clock 5 & 6 High Frequency Divider Configuration
Address: 18H
Type: Read / Write
Default Value: 00XXXX00
7
6
5
4
3
2
1
0
IN6_DIV1
IN6_DIV0
-
-
-
-
IN5_DIV1
IN5_DIV0
Bit
Name
7-6
IN6_DIV[1:0]
5-2
-
1-0
IN5_DIV[1:0]
Description
These bits determine whether the HF Divider is used and what the division factor is for IN6 frequency division:
00: Bypassed. (default)
01: Divided by 4.
10: Divided by 5.
11: Reserved.
Reserved.
These bits determine whether the HF Divider is used and what the division factor is for IN5 frequency division:
00: Bypassed. (default)
01: Divided by 4.
10: Divided by 5.
11: Reserved.
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IN5_CNFG - Input Clock 5 Configuration
Address: 19H
Type: Read / Write
Default Value: 00000011
7
6
5
4
3
2
1
0
DIRECT_DIV
LOCK_8K
BUCKET_SEL1
BUCKET_SEL0
IN_FREQ3
IN_FREQ2
IN_FREQ1
IN_FREQ0
Bit
Name
Description
7
DIRECT_DIV
Refer to the description of the LOCK_8K bit (b6, 19H).
This bit, together with the DIRECT_DIV bit (b7, 19H), determines whether the DivN Divider or the Lock 8k Divider is used for
IN5:
6
5-4
3-0
LOCK_8K
DIRECT_DIV bit
LOCK_8K bit
Used Divider
0
0
1
1
0
1
0
1
Both bypassed (default)
Lock 8k Divider
DivN Divider
Reserved
These bits select one of the four groups of leaky bucket configuration registers for IN5:
00: Group 0; the addresses of the configuration registers are 31H ~ 34H. (default)
BUCKET_SEL[1:0] 01: Group 1; the addresses of the configuration registers are 35H ~ 38H.
10: Group 2; the addresses of the configuration registers are 39H ~ 3CH.
11: Group 3; the addresses of the configuration registers are 3DH ~ 40H.
These bits set the DPLL required frequency for IN5:
0000: 8 kHz.
0001: 1.544 MHz (when the IN_SONET_SDH bit (b2, 09H) is ‘1’) / 2.048 MHz (when the IN_SONET_SDH bit (b2, 09H) is ‘0’).
0010: 6.48 MHz.
0011: 19.44 MHz. (default)
0100: 25.92 MHz.
0101: 38.88 MHz.
IN_FREQ[3:0]
0110 ~ 1000: Reserved.
1001: 2 kHz.
1010: 4 kHz.
1011: Reserved.
1100: 6.25 MHz.
1101 ~ 1111: Reserved.
The required frequency should not be set higher than that clock.
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IN6_CNFG - Input Clock 6 Configuration
Address: 1AH
Type: Read / Write
Default Value: 00000011
7
6
5
4
3
2
1
0
DIRECT_DIV
LOCK_8K
BUCKET_SEL1
BUCKET_SEL0
IN_FREQ3
IN_FREQ2
IN_FREQ1
IN_FREQ0
Bit
Name
Description
7
DIRECT_DIV
Refer to the description of the LOCK_8K bit (b6, 1AH).
This bit, together with the DIRECT_DIV bit (b7, 1AH), determines whether the DivN Divider or the Lock 8k Divider is used for
IN6:
6
5-4
3-0
LOCK_8K
DIRECT_DIV bit
LOCK_8K bit
Used Divider
0
0
1
1
0
1
0
1
Both bypassed (default)
Lock 8k Divider
DivN Divider
Reserved
These bits select one of the four groups of leaky bucket configuration registers for IN6:
00: Group 0; the addresses of the configuration registers are 31H ~ 34H. (default)
BUCKET_SEL[1:0] 01: Group 1; the addresses of the configuration registers are 35H ~ 38H.
10: Group 2; the addresses of the configuration registers are 39H ~ 3CH.
11: Group 3; the addresses of the configuration registers are 3DH ~ 40H.
These bits set the DPLL required frequency for IN6:
0000: 8 kHz.
0001: 1.544 MHz (when the IN_SONET_SDH bit (b2, 09H) is ‘1’) / 2.048 MHz (when the IN_SONET_SDH bit (b2, 09H) is ‘0’).
0010: 6.48 MHz.
0011: 19.44 MHz. (default)
0100: 25.92 MHz.
0101: 38.88 MHz.
IN_FREQ[3:0]
0110 ~ 1000: Reserved.
1001: 2 kHz.
1010: 4 kHz.
1011: Reserved.
1100: 6.25 MHz.
1101 ~ 1111: Reserved.
For IN6, the required frequency should not be set higher than that clock.
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IN7_CNFG - Input Clock 7 Configuration
Address: 1BH
Type: Read / Write
Default Value: 00000011
7
6
5
4
3
2
1
0
DIRECT_DIV
LOCK_8K
BUCKET_SEL1
BUCKET_SEL0
IN_FREQ3
IN_FREQ2
IN_FREQ1
IN_FREQ0
Bit
Name
Description
7
DIRECT_DIV
Refer to the description of the LOCK_8K bit (b6, 1BH).
This bit, together with the DIRECT_DIV bit (b7, 1BH), determines whether the DivN Divider or the Lock 8k Divider is used for
IN7:
6
5-4
3-0
LOCK_8K
DIRECT_DIV bit
LOCK_8K bit
Used Divider
0
0
1
1
0
1
0
1
Both bypassed (default)
Lock 8k Divider
DivN Divider
Reserved
These bits select one of the four groups of leaky bucket configuration registers for IN7:
00: Group 0; the addresses of the configuration registers are 31H ~ 34H. (default)
BUCKET_SEL[1:0] 01: Group 1; the addresses of the configuration registers are 35H ~ 38H.
10: Group 2; the addresses of the configuration registers are 39H ~ 3CH.
11: Group 3; the addresses of the configuration registers are 3DH ~ 40H.
These bits set the DPLL required frequency for IN7:
0000: 8 kHz.
0001: 1.544 MHz (when the IN_SONET_SDH bit (b2, 09H) is ‘1’) / 2.048 MHz (when the IN_SONET_SDH bit (b2, 09H) is ‘0’).
0010: 6.48 MHz.
0011: 19.44 MHz. (default)
0100: 25.92 MHz.
0101: 38.88 MHz.
IN_FREQ[3:0]
0110 ~ 1000: Reserved.
1001: 2 kHz.
1010: 4 kHz.
1011: Reserved.
1100: 6.25 MHz.
1101 ~ 1111: Reserved.
For IN7, the required frequency should not be set higher than that clock.
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IN8_CNFG - Input Clock 8 Configuration
Address: 1CH
Type: Read / Write
Default Value: 00000011
7
6
5
4
3
2
1
0
DIRECT_DIV
LOCK_8K
BUCKET_SEL1
BUCKET_SEL0
IN_FREQ3
IN_FREQ2
IN_FREQ1
IN_FREQ0
Bit
Name
Description
7
DIRECT_DIV
Refer to the description of the LOCK_8K bit (b6, 1CH).
This bit, together with the DIRECT_DIV bit (b7, 1CH), determines whether the DivN Divider or the Lock 8k Divider is used for
IN8:
6
LOCK_8K
5-4
3-0
DIRECT_DIV bit
LOCK_8K bit
Used Divider
0
0
1
1
0
1
0
1
Both bypassed (default)
Lock 8k Divider
DivN Divider
Reserved
These bits select one of the four groups of leaky bucket configuration registers for IN8:
00: Group 0; the addresses of the configuration registers are 31H ~ 34H. (default)
BUCKET_SEL[1:0] 01: Group 1; the addresses of the configuration registers are 35H ~ 38H.
10: Group 2; the addresses of the configuration registers are 39H ~ 3CH.
11: Group 3; the addresses of the configuration registers are 3DH ~ 40H.
These bits set the DPLL required frequency for IN8:
0000: 8 kHz.
0001: 1.544 MHz (when the IN_SONET_SDH bit (b2, 09H) is ‘1’) / 2.048 MHz (when the IN_SONET_SDH bit (b2, 09H) is ‘0’).
0010: 6.48 MHz.
0011: 19.44 MHz. (default)
0100: 25.92 MHz.
0101: 38.88 MHz.
IN_FREQ[3:0]
0110 ~ 1000: Reserved.
1001: 2 kHz.
1010: 4 kHz.
1011: Reserved.
1100: 6.25 MHz.
1101 ~ 1111: Reserved.
For IN8, the required frequency should not be set higher than that clock.
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IN9_CNFG - Input Clock 9 Configuration
Address: 1DH
Type: Read / Write
Default Value: 00000011
7
6
5
4
3
2
1
0
DIRECT_DIV
LOCK_8K
BUCKET_SEL1
BUCKET_SEL0
IN_FREQ3
IN_FREQ2
IN_FREQ1
IN_FREQ0
Bit
Name
Description
7
DIRECT_DIV
Refer to the description of the LOCK_8K bit (b6, 1DH).
This bit, together with the DIRECT_DIV bit (b7, 1DH), determines whether the DivN Divider or the Lock 8k Divider is used for
IN9:
6
5-4
3-0
LOCK_8K
DIRECT_DIV bit
LOCK_8K bit
Used Divider
0
0
1
1
0
1
0
1
Both bypassed (default)
Lock 8k Divider
DivN Divider
Reserved
These bits select one of the four groups of leaky bucket configuration registers for IN9:
00: Group 0; the addresses of the configuration registers are 31H ~ 34H. (default)
BUCKET_SEL[1:0] 01: Group 1; the addresses of the configuration registers are 35H ~ 38H.
10: Group 2; the addresses of the configuration registers are 39H ~ 3CH.
11: Group 3; the addresses of the configuration registers are 3DH ~ 40H.
These bits set the DPLL required frequency for IN9:
0000: 8 kHz.
0001: 1.544 MHz (when the IN_SONET_SDH bit (b2, 09H) is ‘1’) / 2.048 MHz (when the IN_SONET_SDH bit (b2, 09H) is ‘0’).
0010: 6.48 MHz.
0011: 19.44 MHz. (default)
0100: 25.92 MHz.
0101: 38.88 MHz.
IN_FREQ[3:0]
0110 ~ 1000: Reserved.
1001: 2 kHz.
1010: 4 kHz.
1011: Reserved.
1100: 6.25 MHz.
1101 ~ 1111: Reserved.
For IN9, the required frequency should not be set higher than that clock.
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IN10_CNFG - Input Clock 10 Configuration
Address: 1EH
Type: Read / Write
Default Value: 00000011
7
6
5
4
3
2
1
0
DIRECT_DIV
LOCK_8K
BUCKET_SEL1
BUCKET_SEL0
IN_FREQ3
IN_FREQ2
IN_FREQ1
IN_FREQ0
Bit
Name
Description
7
DIRECT_DIV
Refer to the description of the LOCK_8K bit (b6, 1EH).
This bit, together with the DIRECT_DIV bit (b7, 1EH), determines whether the DivN Divider or the Lock 8k Divider is used for
IN10:
6
5-4
3-0
LOCK_8K
DIRECT_DIV bit
LOCK_8K bit
Used Divider
0
0
1
1
0
1
0
1
Both bypassed (default)
Lock 8k Divider
DivN Divider
Reserved
These bits select one of the four groups of leaky bucket configuration registers for IN10:
00: Group 0; the addresses of the configuration registers are 31H ~ 34H. (default)
BUCKET_SEL[1:0] 01: Group 1; the addresses of the configuration registers are 35H ~ 38H.
10: Group 2; the addresses of the configuration registers are 39H ~ 3CH.
11: Group 3; the addresses of the configuration registers are 3DH ~ 40H.
These bits set the DPLL required frequency for IN10:
0000: 8 kHz.
0001: 1.544 MHz (when the IN_SONET_SDH bit (b2, 09H) is ‘1’) / 2.048 MHz (when the IN_SONET_SDH bit (b2, 09H) is ‘0’).
0010: 6.48 MHz.
0011: 19.44 MHz. (default)
0100: 25.92 MHz.
0101: 38.88 MHz.
IN_FREQ[3:0]
0110 ~ 1000: Reserved.
1001: 2 kHz.
1010: 4 kHz.
1011: Reserved.
1100: 6.25 MHz.
1101 ~ 1111: Reserved.
For IN10, the required frequency should not be set higher than that clock.
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SYNCHRONOUS ETHERNET WAN PLL
IN11_CNFG - Input Clock 11 Configuration
Address: 1FH
Type: Read / Write
Default Value: 0000XXXX
7
6
5
4
3
2
1
0
DIRECT_DIV
LOCK_8K
BUCKET_SEL1
BUCKET_SEL0
IN_FREQ3
IN_FREQ2
IN_FREQ1
IN_FREQ0
Bit
Name
Description
7
DIRECT_DIV
Refer to the description of the LOCK_8K bit (b6, 1FH).
This bit, together with the DIRECT_DIV bit (b7, 1FH), determines whether the DivN Divider or the Lock 8k Divider is used for
IN11:
6
5-4
3-0
LOCK_8K
DIRECT_DIV bit
LOCK_8K bit
Used Divider
0
0
1
1
0
1
0
1
Both bypassed (default)
Lock 8k Divider
DivN Divider
Reserved
These bits select one of the four groups of leaky bucket configuration registers for IN11:
00: Group 0; the addresses of the configuration registers are 31H ~ 34H. (default)
BUCKET_SEL[1:0] 01: Group 1; the addresses of the configuration registers are 35H ~ 38H.
10: Group 2; the addresses of the configuration registers are 39H ~ 3CH.
11: Group 3; the addresses of the configuration registers are 3DH ~ 40H.
These bits set the DPLL required frequency for IN11:
0000: 8 kHz.
0001: 1.544 MHz (when the IN_SONET_SDH bit (b2, 09H) is ‘1’) / 2.048 MHz (when the IN_SONET_SDH bit (b2, 09H) is ‘0’).
0010: 6.48 MHz.
0011: 19.44 MHz.
0100: 25.92 MHz.
0101: 38.88 MHz.
0110 ~ 1000: Reserved.
IN_FREQ[3:0] 1001: 2 kHz.
1010: 4 kHz.
1011: Reserved.
1100: 6.25 MHz.
1101 ~ 1111: Reserved.
For IN11, the required frequency should not be set higher than that clock.
The default value of these bits depends on the device application as follows:
In Master / Slave application, when the device is configured as the Master, the default value is ‘0001’; when the device is configured as the Slave, the default value is ‘0010’.
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SYNCHRONOUS ETHERNET WAN PLL
IN12_CNFG - Input Clock 12 Configuration
Address: 20H
Type: Read / Write
Default Value: 00000001
7
6
5
4
3
2
1
0
DIRECT_DIV
LOCK_8K
BUCKET_SEL1
BUCKET_SEL0
IN_FREQ3
IN_FREQ2
IN_FREQ1
IN_FREQ0
Bit
Name
Description
7
DIRECT_DIV
Refer to the description of the LOCK_8K bit (b6, 20H).
This bit, together with the DIRECT_DIV bit (b7, 20H), determines whether the DivN Divider or the Lock 8k Divider is used for
IN12:
6
5-4
3-0
LOCK_8K
DIRECT_DIV bit
LOCK_8K bit
Used Divider
0
0
1
1
0
1
0
1
Both bypassed (default)
Lock 8k Divider
DivN Divider
Reserved
These bits select one of the four groups of leaky bucket configuration registers for IN12:
00: Group 0; the addresses of the configuration registers are 31H ~ 34H. (default)
BUCKET_SEL[1:0] 01: Group 1; the addresses of the configuration registers are 35H ~ 38H.
10: Group 2; the addresses of the configuration registers are 39H ~ 3CH.
11: Group 3; the addresses of the configuration registers are 3DH ~ 40H.
These bits set the DPLL required frequency for IN12:
0000: 8 kHz.
0001: 1.544 MHz (when the IN_SONET_SDH bit (b2, 09H) is ‘1’) / 2.048 MHz (when the IN_SONET_SDH bit (b2, 09H) is ‘0’).
(default)
0010: 6.48 MHz.
0011: 19.44 MHz.
0100: 25.92 MHz.
IN_FREQ[3:0] 0101: 38.88 MHz.
0110 ~ 1000: Reserved.
1001: 2 kHz.
1010: 4 kHz.
1011: Reserved.
1100: 6.25 MHz.
1101 ~ 1111: Reserved.
For IN12, the required frequency should not be set higher than that clock.
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SYNCHRONOUS ETHERNET WAN PLL
IN13_CNFG - Input Clock 13 Configuration
Address: 21H
Type: Read / Write
Default Value: 00000001
7
6
5
4
3
2
1
0
DIRECT_DIV
LOCK_8K
BUCKET_SEL1
BUCKET_SEL0
IN_FREQ3
IN_FREQ2
IN_FREQ1
IN_FREQ0
Bit
Name
Description
7
DIRECT_DIV
Refer to the description of the LOCK_8K bit (b6, 21H).
This bit, together with the DIRECT_DIV bit (b7, 21H), determines whether the DivN Divider or the Lock 8k Divider is used for
IN13:
6
5-4
3-0
LOCK_8K
DIRECT_DIV bit
LOCK_8K bit
Used Divider
0
0
1
1
0
1
0
1
Both bypassed (default)
Lock 8k Divider
DivN Divider
Reserved
These bits select one of the four groups of leaky bucket configuration registers for IN13:
00: Group 0; the addresses of the configuration registers are 31H ~ 34H. (default)
BUCKET_SEL[1:0] 01: Group 1; the addresses of the configuration registers are 35H ~ 38H.
10: Group 2; the addresses of the configuration registers are 39H ~ 3CH.
11: Group 3; the addresses of the configuration registers are 3DH ~ 40H.
These bits set the DPLL required frequency for IN13:
0000: 8 kHz.
0001: 1.544 MHz (when the IN_SONET_SDH bit (b2, 09H) is ‘1’) / 2.048 MHz (when the IN_SONET_SDH bit (b2, 09H) is ‘0’).
(default)
0010: 6.48 MHz.
0011: 19.44 MHz.
0100: 25.92 MHz.
IN_FREQ[3:0] 0101: 38.88 MHz.
0110 ~ 1000: Reserved.
1001: 2 kHz.
1010: 4 kHz.
1011: Reserved.
1100: 6.25 MHz.
1101 ~ 1111: Reserved.
For IN13, the required frequency should not be set higher than that clock.
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SYNCHRONOUS ETHERNET WAN PLL
IN14_CNFG - Input Clock 14 Configuration
Address: 22H
Type: Read / Write
Default Value: 00000001
7
6
5
4
3
2
1
0
DIRECT_DIV
LOCK_8K
BUCKET_SEL1
BUCKET_SEL0
IN_FREQ3
IN_FREQ2
IN_FREQ1
IN_FREQ0
Bit
Name
Description
7
DIRECT_DIV
Refer to the description of the LOCK_8K bit (b6, 22H).
This bit, together with the DIRECT_DIV bit (b7, 22H), determines whether the DivN Divider or the Lock 8k Divider is used for
IN14:
6
5-4
3-0
LOCK_8K
DIRECT_DIV bit
LOCK_8K bit
Used Divider
0
0
1
1
0
1
0
1
Both bypassed (default)
Lock 8k Divider
DivN Divider
Reserved
These bits select one of the four groups of leaky bucket configuration registers for IN14:
00: Group 0; the addresses of the configuration registers are 31H ~ 34H. (default)
BUCKET_SEL[1:0] 01: Group 1; the addresses of the configuration registers are 35H ~ 38H.
10: Group 2; the addresses of the configuration registers are 39H ~ 3CH.
11: Group 3; the addresses of the configuration registers are 3DH ~ 40H.
These bits set the DPLL required frequency for IN14:
0000: 8 kHz.
0001: 1.544 MHz (when the IN_SONET_SDH bit (b2, 09H) is ‘1’) / 2.048 MHz (when the IN_SONET_SDH bit (b2, 09H) is ‘0’).
(default)
0010: 6.48 MHz.
0011: 19.44 MHz.
0100: 25.92 MHz.
IN_FREQ[3:0] 0101: 38.88 MHz.
0110 ~ 1000: Reserved.
1001: 2 kHz.
1010: 4 kHz.
1011: Reserved.
1100: 6.25 MHz.
1101 ~ 1111: Reserved.
For IN14, the required frequency should not be set higher than that clock.
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SYNCHRONOUS ETHERNET WAN PLL
PRE_DIV_CH_CNFG - DivN Divider Channel Selection
Address: 23H
Type: Read / Write
Default Value: XXXX0000
7
6
5
4
3
2
1
0
-
-
-
-
PRE_DIV_CH_VALUE3
PRE_DIV_CH_VALUE2
PRE_DIV_CH_VALUE1
PRE_DIV_CH_VALUE0
Bit
Name
7-4
-
Description
Reserved.
This register is an indirect address register for Register 24H and 25H.
These bits select an input clock. The value set in the PRE_DIVN_VALUE[14:0] bits (25H, 24H) is available for the
selected input clock.
0000: Reserved. (default)
0001, 0010: Reserved.
PRE_DIV_CH_VALUE[3:0] 0011: IN3.
0100: IN4.
......
1101: IN13.
1110: IN14.
1111: Reserved.
3-0
PRE_DIVN[7:0]_CNFG - DivN Divider Division Factor Configuration 1
Address: 24H
Type: Read / Write
Default Value: 00000000
7
6
5
4
3
2
1
0
PRE_DIVN_VA
LUE7
PRE_DIVN_VA
LUE6
PRE_DIVN_VA
LUE5
PRE_DIVN_VA
LUE4
PRE_DIVN_VA
LUE3
PRE_DIVN_VA
LUE2
PRE_DIVN_VA
LUE1
PRE_DIVN_VA
LUE0
Bit
7-0
Name
Description
PRE_DIVN_VALUE[7:0] Refer to the description of the PRE_DIVN_VALUE[14:8] bits (b6~0, 25H).
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PRE_DIVN[14:8]_CNFG - DivN Divider Division Factor Configuration 2
Address: 25H
Type: Read / Write
Default Value: X0000000
7
6
5
4
3
2
1
0
-
PRE_DIVN_VAL
UE14
PRE_DIVN_VAL
UE13
PRE_DIVN_VAL
UE12
PRE_DIVN_VAL
UE11
PRE_DIVN_VAL
UE10
PRE_DIVN_VAL
UE9
PRE_DIVN_VAL
UE8
Bit
Name
Description
7
-
6-0
PRE_DIVN_VALUE[14:8]
Reserved.
The division factor for an input clock is equal to PRE_DIVN_VALUE[14:0] plus 1. The input clock is selected by the
PRE_DIV_CH_VALUE[3:0] bits (b3~0, 23H).
A value from ‘1’ to ‘4BEF’ (Hex) can be written into, corresponding to a division factor from 2 to 19440. The others are
reserved. So the DivN Divider only supports an input clock whose frequency is less than or equal to (≤) 155.52 MHz.
The division factor setting should observe the following order:
1. Write the lower eight bits of the division factor to the PRE_DIVN_VALUE[7:0] bits;
2. Write the higher eight bits of the division factor to the PRE_DIVN_VALUE[14:8] bits.
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IN1_IN2_SEL_PRIORITY_CNFG - Input Clock 1 & 2 Priority Configuration *
Address: 26H
Type: Read / Write
Default Value: T0 - 00110010 / T4 - 00000000
7
6
5
4
3
2
1
0
IN2_SEL_PRIO
RITY3
IN2_SEL_PRIO
RITY2
IN2_SEL_PRIO
RITY1
IN2_SEL_PRIO
RITY0
IN1_SEL_PRIO
RITY3
IN1_SEL_PRIO
RITY2
IN1_SEL_PRIO
RITY1
IN1_SEL_PRIO
RITY0
Bit
7-4
3-0
Name
Description
These bits set the priority of the corresponding INn. Here n is 2:
0000: Disable INn for automatic selection. (T4 default)
0001: Priority 1.
0010: Priority 2.
0011: Priority 3. (T0 default)
0100: Priority 4.
0101: Priority 5.
0110: Priority 6.
INn_SEL_PRIORITY[3:0] 0111: Priority 7.
1000: Priority 8.
1001: Priority 9.
1010: Priority 10.
1011: Priority 11.
1100: Priority 12.
1101: Priority 13.
1110: Priority 14.
1111: Priority 15.
These bits set the priority of the corresponding INn. Here n is 1:
0000: Disable INn for automatic selection. (T4 default)
0001: Priority 1.
0010: Priority 2. (T0 default)
0011: Priority 3.
0100: Priority 4.
0101: Priority 5.
0110: Priority 6.
INn_SEL_PRIORITY[3:0] 0111: Priority 7.
1000: Priority 8.
1001: Priority 9.
1010: Priority 10.
1011: Priority 11.
1100: Priority 12.
1101: Priority 13.
1110: Priority 14.
1111: Priority 15.
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IDT82V3390 DATASHEET
SYNCHRONOUS ETHERNET WAN PLL
IN3_IN4_SEL_PRIORITY_CNFG - Input Clock 3 & 4 Priority Configuration *
Address: 27H
Type: Read / Write
Default Value: T0 - 01010100 / T4 - 00000000
7
6
5
4
3
2
1
0
IN4_SEL_PRIO
RITY3
IN4_SEL_PRIO
RITY2
IN4_SEL_PRIO
RITY1
IN4_SEL_PRIO
RITY0
IN3_SEL_PRIO
RITY3
IN3_SEL_PRIO
RITY2
IN3_SEL_PRIO
RITY1
IN3_SEL_PRIO
RITY0
Bit
Name
7-4
INn_SEL_PRIORITY[3:0]
3-0
INn_SEL_PRIORITY[3:0]
Description
These bits set the priority of the corresponding INn. Here n is 4.
0000: Disable INn for automatic selection. (T4 default)
0001: Priority 1.
0010: Priority 2.
0011: Priority 3.
0100: Priority 4.
0101: Priority 5. (T0 default)
0110: Priority 6.
0111: Priority 7.
1000: Priority 8.
1001: Priority 9.
1010: Priority 10.
1011: Priority 11.
1100: Priority 12.
1101: Priority 13.
1110: Priority 14.
1111: Priority 15.
These bits set the priority of the corresponding INn. Here n is 3.
0000: Disable INn for automatic selection. (T4 default)
0001: Priority 1.
0010: Priority 2.
0011: Priority 3.
0100: Priority 4. (T0 default)
0101: Priority 5.
0110: Priority 6.
0111: Priority 7.
1000: Priority 8.
1001: Priority 9.
1010: Priority 10.
1011: Priority 11.
1100: Priority 12.
1101: Priority 13.
1110: Priority 14.
1111: Priority 15.
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SYNCHRONOUS ETHERNET WAN PLL
IN5_IN6_SEL_PRIORITY_CNFG - Input Clock 5 & 6 Priority Configuration *
Address: 28H
Type: Read / Write
Default Value: T0/T4 - 01110110
7
6
5
4
3
2
1
0
IN6_SEL_PRIO
RITY3
IN6_SEL_PRIO
RITY2
IN6_SEL_PRIO
RITY1
IN6_SEL_PRIO
RITY0
IN5_SEL_PRIO
RITY3
IN5_SEL_PRIO
RITY2
IN5_SEL_PRIO
RITY1
IN5_SEL_PRIO
RITY0
Bit
Name
7-4
INn_SEL_PRIORITY[3:0]
3-0
INn_SEL_PRIORITY[3:0]
Description
These bits set the priority of the corresponding INn. Here n is 6.
0000: Disable INn for automatic selection.
0001: Priority 1.
0010: Priority 2.
0011: Priority 3.
0100: Priority 4.
0101: Priority 5.
0110: Priority 6.
0111: Priority 7. (default)
1000: Priority 8.
1001: Priority 9.
1010: Priority 10.
1011: Priority 11.
1100: Priority 12.
1101: Priority 13.
1110: Priority 14.
1111: Priority 15.
These bits set the priority of the corresponding INn. Here n is 5.
0000: Disable INn for automatic selection.
0001: Priority 1.
0010: Priority 2.
0011: Priority 3.
0100: Priority 4.
0101: Priority 5.
0110: Priority 6. (default)
0111: Priority 7.
1000: Priority 8.
1001: Priority 9.
1010: Priority 10.
1011: Priority 11.
1100: Priority 12.
1101: Priority 13.
1110: Priority 14.
1111: Priority 15.
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SYNCHRONOUS ETHERNET WAN PLL
IN7_IN8_SEL_PRIORITY_CNFG - Input Clock 7 & 8 Priority Configuration *
Address: 29H
Type: Read / Write
Default Value: 10011000
7
6
5
4
3
2
1
0
IN8_SEL_PRIO
RITY3
IN8_SEL_PRIO
RITY2
IN8_SEL_PRIO
RITY1
IN8_SEL_PRIO
RITY0
IN7_SEL_PRIO
RITY3
IN7_SEL_PRIO
RITY2
IN7_SEL_PRIO
RITY1
IN7_SEL_PRIO
RITY0
Bit
7-4
3-0
Name
Description
These bits set the priority of the corresponding INn. Here n is 8.
0000: Disable INn for automatic selection.
0001: Priority 1.
0010: Priority 2.
0011: Priority 3.
0100: Priority 4.
0101: Priority 5.
0110: Priority 6.
INn_SEL_PRIORITY[3:0] 0111: Priority 7.
1000: Priority 8.
1001: Priority 9. (default)
1010: Priority 10.
1011: Priority 11.
1100: Priority 12.
1101: Priority 13.
1110: Priority 14.
1111: Priority 15.
These bits set the priority of the corresponding INn. Here n is 7.
0000: Disable INn for automatic selection.
0001: Priority 1.
0010: Priority 2.
0011: Priority 3.
0100: Priority 4.
0101: Priority 5.
0110: Priority 6.
INn_SEL_PRIORITY[3:0] 0111: Priority 7.
1000: Priority 8. (default)
1001: Priority 9.
1010: Priority 10.
1011: Priority 11.
1100: Priority 12.
1101: Priority 13.
1110: Priority 14.
1111: Priority 15.
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SYNCHRONOUS ETHERNET WAN PLL
IN9_IN10_SEL_PRIORITY_CNFG - Input Clock 9 & 10 Priority Configuration *
Address: 2AH
Type: Read / Write
Default Value: 10111010
7
6
5
4
3
2
1
0
IN10_SEL_PRI
ORITY3
IN10_SEL_PRI
ORITY2
IN10_SEL_PRI
ORITY1
IN10_SEL_PRI
ORITY0
IN9_SEL_PRIO
RITY3
IN9_SEL_PRIO
RITY2
IN9_SEL_PRIO
RITY1
IN9_SEL_PRIO
RITY0
Bit
Name
7-4
INn_SEL_PRIORITY[3:0]
3-0
INn_SEL_PRIORITY[3:0]
Description
These bits set the priority of the corresponding INn. Here n is 10.
0000: Disable INn for automatic selection.
0001: Priority 1.
0010: Priority 2.
0011: Priority 3.
0100: Priority 4.
0101: Priority 5.
0110: Priority 6.
0111: Priority 7.
1000: Priority 8.
1001: Priority 9.
1010: Priority 10.
1011: Priority 11. (default)
1100: Priority 12.
1101: Priority 13.
1110: Priority 14.
1111: Priority 15.
These bits set the priority of the corresponding INn. Here n is 9.
0000: Disable INn for automatic selection.
0001: Priority 1.
0010: Priority 2.
0011: Priority 3.
0100: Priority 4.
0101: Priority 5.
0110: Priority 6.
0111: Priority 7.
1000: Priority 8.
1001: Priority 9.
1010: Priority 10. (default)
1011: Priority 11.
1100: Priority 12.
1101: Priority 13.
1110: Priority 14.
1111: Priority 15.
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SYNCHRONOUS ETHERNET WAN PLL
IN11_IN12_SEL_PRIORITY_CNFG - Input Clock 11 & 12 Priority Configuration *
Address: 2BH
Type: Read / Write
Default Value: 11011100 (T0 Master)/11010001 (T0 Slave) 00000000 (T4)
7
6
5
4
3
2
1
0
IN12_SEL_PRI
ORITY3
IN12_SEL_PRI
ORITY2
IN12_SEL_PRI
ORITY1
IN12_SEL_PRI
ORITY0
IN11_SEL_PRI
ORITY3
IN11_SEL_PRI
ORITY2
IN11_SEL_PRI
ORITY1
IN11_SEL_PRI
ORITY0
Bit
7-4
3-0
Name
Description
These bits set the priority of the corresponding INn. Here n is 12:
0000: Disable INn for automatic selection. (T4 default)
0001: Priority 1.
0010: Priority 2.
0011: Priority 3.
0100: Priority 4.
0101: Priority 5.
0110: Priority 6.
INn_SEL_PRIORITY[3:0] 0111: Priority 7.
1000: Priority 8.
1001: Priority 9.
1010: Priority 10.
1011: Priority 11.
1100: Priority 12.
1101: Priority 13. (T0 Master/Slave default)
1110: Priority 14.
1111: Priority 15.
These bits set the priority of the corresponding INn. Here n is 11:
0000: Disable INn for automatic selection. (T4 default)
0001: Priority 1. (T0 Slave default)
0010: Priority 2.
0011: Priority 3.
0100: Priority 4.
0101: Priority 5.
0110: Priority 6.
INn_SEL_PRIORITY[3:0] 0111: Priority 7.
1000: Priority 8.
1001: Priority 9.
1010: Priority 10.
1011: Priority 11.
1100: Priority 12. (T0 Master default)
1101: Priority 13.
1110: Priority 14.
1111: Priority 15.
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SYNCHRONOUS ETHERNET WAN PLL
IN13_IN14_SEL_PRIORITY_CNFG - Input Clock 13 & 14 Priority Configuration *
Address: 2CH
Type: Read / Write
Default Value: 11111110 (T0) 00000000 (T4)
7
6
5
4
3
2
1
0
IN14_SEL_PRI
ORITY3
IN14_SEL_PRI
ORITY2
IN14_SEL_PRI
ORITY1
IN14_SEL_PRI
ORITY0
IN13_SEL_PRI
ORITY3
IN13_SEL_PRI
ORITY2
IN13_SEL_PRI
ORITY1
IN13_SEL_PRI
ORITY0
Bit
Name
7-4
INn_SEL_PRIORITY[3:0]
3-0
INn_SEL_PRIORITY[3:0]
Description
These bits set the priority of the corresponding INn. Here n is 14:
0000: Disable INn for automatic selection. (T4 default)
0001: Priority 1.
0010: Priority 2.
0011: Priority 3.
0100: Priority 4.
0101: Priority 5.
0110: Priority 6.
0111: Priority 7.
1000: Priority 8.
1001: Priority 9.
1010: Priority 10.
1011: Priority 11.
1100: Priority 12.
1101: Priority 13.
1110: Priority 14.
1111: Priority 15. (T0 default)
These bits set the priority of the corresponding INn. Here n is 13:
0000: Disable INn for automatic selection. (T4 default)
0001: Priority 1.
0010: Priority 2.
0011: Priority 3.
0100: Priority 4.
0101: Priority 5.
0110: Priority 6.
0111: Priority 7.
1000: Priority 8.
1001: Priority 9.
1010: Priority 10.
1011: Priority 11.
1100: Priority 12.
1101: Priority 13.
1110: Priority 14. (T0 default)
1111: Priority 15.
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7.2.4
SYNCHRONOUS ETHERNET WAN PLL
INPUT CLOCK QUALITY MONITORING CONFIGURATION & STATUS REGISTERS
FREQ_MON_FACTOR_CNFG - Factor of Frequency Monitor Configuration
Address: 2EH
Type: Read / Write
Default Value: XXXX1011
7
6
5
4
3
2
1
0
-
-
-
-
FREQ_MON_F
ACTOR3
FREQ_MON_F
ACTOR2
FREQ_MON_F
ACTOR1
FREQ_MON_F
ACTOR0
Bit
Name
7-4
-
3-0
Description
Reserved.
These bits determine a factor. The factor has a relationship with the frequency hard alarm threshold in ppm (refer to
the description of the ALL_FREQ_HARD_THRESHOLD[3:0] bits (b3~0, 2FH)) and with the frequency of the input
clock with respect to the master clock in ppm (refer to the description of the IN_FREQ_VALUE[7:0] bits (b7~0, 42H)).
The factor represents the accuracy of the frequency monitor and should be set according to the requirements of different applications.
0000: 0.0032.
0001: 0.0064.
0010: 0.0127.
0011: 0.0257.
FREQ_MON_FACTOR[3:0]
0100: 0.0514.
0101: 0.103.
0110: 0.206.
0111: 0.412.
1000: 0.823.
1001: 1.646.
1010: 3.292.
1011: 3.81. (default)
1100 - 1111: 4.6.
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IDT82V3390 DATASHEET
SYNCHRONOUS ETHERNET WAN PLL
HARD_FREQ_MON_THRESHOLD_CNFG - Frequency Monitor Threshold for Hard Input Clocks Configuration
Address: 2FH
Type: Read / Write
Default Value: 00100011
7
6
5
4
3
2
1
0
HARD_FREQ_
MON_THRESH
OLD7
HARD_FREQ_
MON_THRESH
OLD6
HARD_FREQ_
MON_THRESH
OLD5
HARD_FREQ_
MON_THRESH
OLD4
HARD_FREQ_
MON_THRESH
OLD3
HARD_FREQ_
MON_THRESH
OLD2
HARD_FREQ_
MON_THRESH
OLD1
HARD_FREQ_
MON_THRESH
OLD0
Bit
Name
Description
These bits are the accepting threshold of reference clock monitoring.
The frequency hard alarm threshold in ppm is calculated as follows:
Frequency Hard Alarm Threshold (ppm) = (HARD_FREQ_MON_THRESHOLD[7:4]
HARD_FREQ_MON_THRESHOLD[7:4]
FREQ_MON_FACTOR[3:0] (b3~0, 2EH)
This threshold is symmetrical about zero.A value of 0010 bin corresponds to an alarm limit of
ppm.
These bits are the rejecting threshold of reference clock monitoring.
The frequency hard alarm threshold in ppm is calculated as follows:
Frequency Hard Alarm Threshold (ppm) = (HARD_FREQ_MON_THRESHOLD[3:0]
HARD_FREQ_MON_THRESHOLD[3:0]
FREQ_MON_FACTOR[3:0] (b3~0, 2EH)
This threshold is symmetrical about zero.A value of 0010 bin corresponds to an alarm limit of
ppm.
7-4
3-0
+ 1) X
+/- 11.43
+ 1) X
+/- 11.43
SOFT_FREQ_MON_THRESHOLD_CNFG - Frequency Monitor Threshold for Soft Input Clocks Configuration
Address: 30H
Type: Read / Write
Default Value: 00100011
7
6
5
4
3
2
1
0
SOFT_FREQ_M
ON_THRESHO
LD7
SOFT_FREQ_M
ON_THRESHO
LD6
SOFT_FREQ_M
ON_THRESHO
LD5
SOFT_FREQ_M
ON_THRESHO
LD4
SOFT_FREQ_
MON_THRESH
OLD3
SOFT_FREQ_
MON_THRESH
OLD2
SOFT_FREQ_
MON_THRESH
OLD1
SOFT_FREQ_
MON_THRESH
OLD0
Bit
7-4
3-0
Name
Description
These bits are the accepting threshold of reference clock monitoring.
The frequency soft alarm threshold in ppm is calculated as follows:
Frequency Soft Alarm Threshold (ppm) = (SOFT_FREQ_MON_THRESHOLD[7:4] + 1) X
SOFT_FREQ_MON_THRESHOLD[7:4]
FREQ_MON_FACTOR[3:0] (b3~0, 2EH)
This threshold is symmetrical about zero.A value of 0010 bin corresponds to an alarm limit of +/- 11.43
ppm.
These bits are the rejecting threshold of reference clock monitoring.
The frequency soft alarm threshold in ppm is calculated as follows:
Frequency Soft Alarm Threshold (ppm) = (SOFT_FREQ_MON_THRESHOLD[3:0] + 1) X
SOFT_FREQ_MON_THRESHOLD[3:0]
FREQ_MON_FACTOR[3:0] (b3~0, 2EH)
This threshold is symmetrical about zero.A value of 0010 bin corresponds to an alarm limit of +/- 11.43
ppm.
108
July 14, 2011
IDT82V3390 DATASHEET
SYNCHRONOUS ETHERNET WAN PLL
UPPER_THRESHOLD_0_CNFG - Upper Threshold for Leaky Bucket Configuration 0
Address: 31H
Type: Read / Write
Default Value: 00000110
7
6
5
4
3
2
1
0
UPPER_THRE
SHOLD_0_DAT
A7
UPPER_THRE
SHOLD_0_DAT
A6
UPPER_THRE
SHOLD_0_DAT
A5
UPPER_THRE
SHOLD_0_DAT
A4
UPPER_THRE
SHOLD_0_DAT
A3
UPPER_THRE
SHOLD_0_DAT
A2
UPPER_THRE
SHOLD_0_DAT
A1
UPPER_THRE
SHOLD_0_DAT
A0
Bit
Name
Description
7-0
UPPER_THRESHOLD_0_DATA[7:0]
These bits set an upper threshold for the internal leaky bucket accumulator. When the number of the accumulated events is above this threshold, a no-activity alarm is raised.
LOWER_THRESHOLD_0_CNFG - Lower Threshold for Leaky Bucket Configuration 0
Address: 32H
Type: Read / Write
Default Value: 00000100
7
6
5
4
3
2
1
0
LOWER_THRE
SHOLD_0_DAT
A7
LOWER_THRE
SHOLD_0_DAT
A6
LOWER_THRE
SHOLD_0_DAT
A5
LOWER_THRE
SHOLD_0_DAT
A4
LOWER_THRE
SHOLD_0_DAT
A3
LOWER_THRE
SHOLD_0_DAT
A2
LOWER_THRE
SHOLD_0_DAT
A1
LOWER_THRE
SHOLD_0_DAT
A0
Bit
Name
Description
7-0
LOWER_THRESHOLD_0_DATA[7:0]
These bits set a lower threshold for the internal leaky bucket accumulator. When the number of the accumulated
events is below this threshold, the no-activity alarm is cleared.
BUCKET_SIZE_0_CNFG - Bucket Size for Leaky Bucket Configuration 0
Address: 33H
Type: Read / Write
Default Value: 00001000
7
6
5
4
3
2
1
0
BUCKET_SIZE
_0_DATA7
BUCKET_SIZE
_0_DATA6
BUCKET_SIZE
_0_DATA5
BUCKET_SIZE
_0_DATA4
BUCKET_SIZE
_0_DATA3
BUCKET_SIZE
_0_DATA2
BUCKET_SIZE
_0_DATA1
BUCKET_SIZE
_0_DATA0
Bit
Name
Description
7-0
BUCKET_SIZE_0_DATA[7:0]
These bits set a bucket size for the internal leaky bucket accumulator. If the number of the accumulated events reach
the bucket size, the accumulator will stop increasing even if further events are detected.
109
July 14, 2011
IDT82V3390 DATASHEET
SYNCHRONOUS ETHERNET WAN PLL
DECAY_RATE_0_CNFG - Decay Rate for Leaky Bucket Configuration 0
Address: 34H
Type: Read / Write
Default Value: XXXXXX01
7
6
5
4
3
2
1
0
-
-
-
-
-
-
DECAY_RATE_
0_DATA1
DECAY_RATE_
0_DATA0
Bit
Name
7-2
-
Description
Reserved.
These bits set a decay rate for the internal leaky bucket accumulator:
00: The accumulator decreases by 1 in every 128 ms with no event detected.
DECAY_RATE_0_DATA[1:0] 01: The accumulator decreases by 1 in every 256 ms with no event detected. (default)
10: The accumulator decreases by 1 in every 512 ms with no event detected.
11: The accumulator decreases by 1 in every 1024 ms with no event detected.
1-0
UPPER_THRESHOLD_1_CNFG - Upper Threshold for Leaky Bucket Configuration 1
Address: 35H
Type: Read / Write
Default Value: 00000110
7
6
5
4
3
2
1
0
UPPER_THRE
SHOLD_1_DAT
A7
UPPER_THRE
SHOLD_1_DAT
A6
UPPER_THRE
SHOLD_1_DAT
A5
UPPER_THRE
SHOLD_1_DAT
A4
UPPER_THRE
SHOLD_1_DAT
A3
UPPER_THRE
SHOLD_1_DAT
A2
UPPER_THRE
SHOLD_1_DAT
A1
UPPER_THRE
SHOLD_1_DAT
A0
Bit
Name
Description
7-0
UPPER_THRESHOLD_1_DATA[7:0]
These bits set an upper threshold for the internal leaky bucket accumulator. When the number of the accumulated events is above this threshold, a no-activity alarm is raised.
LOWER_THRESHOLD_1_CNFG - Lower Threshold for Leaky Bucket Configuration 1
Address: 36H
Type: Read / Write
Default Value: 00000100
7
6
5
4
3
2
1
0
LOWER_THRE
SHOLD_1_DAT
A7
LOWER_THRE
SHOLD_1_DAT
A6
LOWER_THRE
SHOLD_1_DAT
A5
LOWER_THRE
SHOLD_1_DAT
A4
LOWER_THRE
SHOLD_1_DAT
A3
LOWER_THRE
SHOLD_1_DAT
A2
LOWER_THRE
SHOLD_1_DAT
A1
LOWER_THRE
SHOLD_1_DAT
A0
Bit
7-0
Name
Description
These bits set a lower threshold for the internal leaky bucket accumulator. When the number of the accumulated
LOWER_THRESHOLD_1_DATA[7:0]
events is below this threshold, the no-activity alarm is cleared.
110
July 14, 2011
IDT82V3390 DATASHEET
SYNCHRONOUS ETHERNET WAN PLL
BUCKET_SIZE_1_CNFG - Bucket Size for Leaky Bucket Configuration 1
Address: 37H
Type: Read / Write
Default Value: 00001000
7
6
5
4
3
2
1
0
BUCKET_SIZE
_1_DATA7
BUCKET_SIZE
_1_DATA6
BUCKET_SIZE
_1_DATA5
BUCKET_SIZE
_1_DATA4
BUCKET_SIZE
_1_DATA3
BUCKET_SIZE
_1_DATA2
BUCKET_SIZE
_1_DATA1
BUCKET_SIZE
_1_DATA0
Bit
Name
Description
These bits set a bucket size for the internal leaky bucket accumulator. If the number of the accumulated events reach
BUCKET_SIZE_1_DATA[7:0]
the bucket size, the accumulator will stop increasing even if further events are detected.
7-0
DECAY_RATE_1_CNFG - Decay Rate for Leaky Bucket Configuration 1
Address: 38H
Type: Read / Write
Default Value: XXXXXX01
7
6
5
4
3
2
1
0
-
-
-
-
-
-
DECAY_RATE_
1_DATA1
DECAY_RATE_
1_DATA0
Bit
Name
7-2
-
Description
Reserved.
These bits set a decay rate for the internal leaky bucket accumulator:
00: The accumulator decreases by 1 in every 128 ms with no event detected.
DECAY_RATE_1_DATA[1:0] 01: The accumulator decreases by 1 in every 256 ms with no event detected. (default)
10: The accumulator decreases by 1 in every 512 ms with no event detected.
11: The accumulator decreases by 1 in every 1024 ms with no event detected.
1-0
UPPER_THRESHOLD_2_CNFG - Upper Threshold for Leaky Bucket Configuration 2
Address: 39H
Type: Read / Write
Default Value: 00000110
7
6
5
4
3
2
1
0
UPPER_THRE
SHOLD_2_DAT
A7
UPPER_THRE
SHOLD_2_DAT
A6
UPPER_THRE
SHOLD_2_DAT
A5
UPPER_THRE
SHOLD_2_DAT
A4
UPPER_THRE
SHOLD_2_DAT
A3
UPPER_THRE
SHOLD_2_DAT
A2
UPPER_THRE
SHOLD_2_DAT
A1
UPPER_THRE
SHOLD_2_DAT
A0
Bit
7-0
Name
Description
These bits set an upper threshold for the internal leaky bucket accumulator. When the number of the accumuUPPER_THRESHOLD_2_DATA[7:0]
lated events is above this threshold, a no-activity alarm is raised.
111
July 14, 2011
IDT82V3390 DATASHEET
SYNCHRONOUS ETHERNET WAN PLL
LOWER_THRESHOLD_2_CNFG - Lower Threshold for Leaky Bucket Configuration 2
Address: 3AH
Type: Read / Write
Default Value: 00000100
7
6
5
4
3
2
1
0
LOWER_THRE
SHOLD_2_DAT
A7
LOWER_THRE
SHOLD_2_DAT
A6
LOWER_THRE
SHOLD_2_DAT
A5
LOWER_THRE
SHOLD_2_DAT
A4
LOWER_THRE
SHOLD_2_DAT
A3
LOWER_THRE
SHOLD_2_DAT
A2
LOWER_THRE
SHOLD_2_DAT
A1
LOWER_THRE
SHOLD_2_DAT
A0
Bit
Name
Description
7-0
LOWER_THRESHOLD_2_DATA[7:0]
These bits set a lower threshold for the internal leaky bucket accumulator. When the number of the accumulated events is below this threshold, the no-activity alarm is cleared.
BUCKET_SIZE_2_CNFG - Bucket Size for Leaky Bucket Configuration 2
Address: 3BH
Type: Read / Write
Default Value: 00001000
7
6
5
4
3
2
1
0
BUCKET_SIZE
_2_DATA7
BUCKET_SIZE
_2_DATA6
BUCKET_SIZE
_2_DATA5
BUCKET_SIZE
_2_DATA4
BUCKET_SIZE
_2_DATA3
BUCKET_SIZE
_2_DATA2
BUCKET_SIZE
_2_DATA1
BUCKET_SIZE
_2_DATA0
Bit
Name
Description
7-0
BUCKET_SIZE_2_DATA[7:0]
These bits set a bucket size for the internal leaky bucket accumulator. If the number of the accumulated events reach
the bucket size, the accumulator will stop increasing even if further events are detected.
DECAY_RATE_2_CNFG - Decay Rate for Leaky Bucket Configuration 2
Address: 3CH
Type: Read / Write
Default Value: XXXXXX01
7
6
5
4
3
2
1
0
-
-
-
-
-
-
DECAY_RATE_
2_DATA1
DECAY_RATE_
2_DATA0
Bit
Name
7-2
-
1-0
Description
Reserved.
These bits set a decay rate for the internal leaky bucket accumulator:
00: The accumulator decreases by 1 in every 128 ms with no event detected.
DECAY_RATE_2_DATA[1:0] 01: The accumulator decreases by 1 in every 256 ms with no event detected. (default)
10: The accumulator decreases by 1 in every 512 ms with no event detected.
11: The accumulator decreases by 1 in every 1024 ms with no event detected.
112
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IDT82V3390 DATASHEET
SYNCHRONOUS ETHERNET WAN PLL
UPPER_THRESHOLD_3_CNFG - Upper Threshold for Leaky Bucket Configuration 3
Address: 3DH
Type: Read / Write
Default Value: 00000110
7
6
5
4
3
2
1
0
UPPER_THRE
SHOLD_3_DAT
A7
UPPER_THRE
SHOLD_3_DAT
A6
UPPER_THRE
SHOLD_3_DAT
A5
UPPER_THRE
SHOLD_3_DAT
A4
UPPER_THRE
SHOLD_3_DAT
A3
UPPER_THRE
SHOLD_3_DAT
A2
UPPER_THRE
SHOLD_3_DAT
A1
UPPER_THRE
SHOLD_3_DAT
A0
Bit
Name
Description
7-0
UPPER_THRESHOLD_3_DATA[7:0]
These bits set an upper threshold for the internal leaky bucket accumulator. When the number of the accumulated events is above this threshold, a no-activity alarm is raised.
LOWER_THRESHOLD_3_CNFG - Lower Threshold for Leaky Bucket Configuration 3
Address: 3EH
Type: Read / Write
Default Value: 00000100
7
6
5
4
3
2
1
0
LOWER_THRE
SHOLD_3_DAT
A7
LOWER_THRE
SHOLD_3_DAT
A6
LOWER_THRE
SHOLD_3_DAT
A5
LOWER_THRE
SHOLD_3_DAT
A4
LOWER_THRE
SHOLD_3_DAT
A3
LOWER_THRE
SHOLD_3_DAT
A2
LOWER_THRE
SHOLD_3_DAT
A1
LOWER_THRE
SHOLD_3_DAT
A0
Bit
Name
Description
7-0
LOWER_THRESHOLD_3_DATA[7:0]
These bits set a lower threshold for the internal leaky bucket accumulator. When the number of the accumulated events is below this threshold, the no-activity alarm is cleared.
BUCKET_SIZE_3_CNFG - Bucket Size for Leaky Bucket Configuration 3
Address: 3FH
Type: Read / Write
Default Value: 00001000
7
6
5
4
3
2
1
0
BUCKET_SIZE
_3_DATA7
BUCKET_SIZE
_3_DATA6
BUCKET_SIZE
_3_DATA5
BUCKET_SIZE
_3_DATA4
BUCKET_SIZE
_3_DATA3
BUCKET_SIZE
_3_DATA2
BUCKET_SIZE
_3_DATA1
BUCKET_SIZE
_3_DATA0
Bit
Name
Description
7-0
BUCKET_SIZE_3_DATA[7:0]
These bits set a bucket size for the internal leaky bucket accumulator. If the number of the accumulated events reach
the bucket size, the accumulator will stop increasing even if further events are detected.
113
July 14, 2011
IDT82V3390 DATASHEET
SYNCHRONOUS ETHERNET WAN PLL
DECAY_RATE_3_CNFG - Decay Rate for Leaky Bucket Configuration 3
Address: 40H
Type: Read / Write
Default Value: XXXXXX01
7
6
5
4
3
2
1
0
-
-
-
-
-
-
DECAY_RATE_
3_DATA1
DECAY_RATE_
3_DATA0
Bit
Name
7-2
-
Description
Reserved.
These bits set a decay rate for the internal leaky bucket accumulator:
00: The accumulator decreases by 1 in every 128 ms with no event detected.
DECAY_RATE_3_DATA[1:0] 01: The accumulator decreases by 1 in every 256 ms with no event detected. (default)
10: The accumulator decreases by 1 in every 512 ms with no event detected.
11: The accumulator decreases by 1 in every 1024 ms with no event detected.
1-0
IN_FREQ_READ_CH_CNFG - Input Clock Frequency Read Channel Selection
Address: 41H
Type: Read / Write
Default Value: XXXX0000
7
6
5
4
3
2
1
0
-
-
-
-
IN_FREQ_READ
_CH3
IN_FREQ_READ
_CH2
IN_FREQ_READ
_CH1
IN_FREQ_READ
_CH0
Bit
Name
7-4
-
3-0
Description
Reserved.
These bits select an input clock, the frequency of which with respect to the reference clock can be read.
0000: Reserved. (default)
0001: IN1.
0010: IN2.
IN_FREQ_READ_CH[3:0]
......
1101: IN13.
1110: IN14.
1111: Reserved.
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IDT82V3390 DATASHEET
SYNCHRONOUS ETHERNET WAN PLL
IN_FREQ_READ_STS - Input Clock Frequency Read Value
Address: 42H
Type: Read
Default Value: 00000000
7
6
5
4
3
2
1
0
IN_FREQ_VAL
UE7
IN_FREQ_VAL
UE6
IN_FREQ_VAL
UE5
IN_FREQ_VAL
UE4
IN_FREQ_VAL
UE3
IN_FREQ_VAL
UE2
IN_FREQ_VAL
UE1
IN_FREQ_VAL
UE0
Bit
7-0
Name
Description
These bits represent a 2’s complement signed integer. If the value is multiplied by the value in the
FREQ_MON_FACTOR[3:0] bits (b3~0, 2EH), the frequency of an input clock with respect to the reference clock in ppm will
IN_FREQ_VALUE[7:0]
be obtained. The input clock is selected by the IN_FREQ_READ_CH[3:0] bits (b3~0, 41H).
The value in these bits is updated every 16 seconds, starting when an input clock is selected.
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IDT82V3390 DATASHEET
SYNCHRONOUS ETHERNET WAN PLL
IN1_IN2_STS - Input Clock 1 & 2 Status
Address: 43H
Type: Read
Default Value: 01100110
7
6
5
4
3
2
1
0
IN2_FREQ_SO
FT_ALARM
IN2_FREQ_HA
RD_ALARM
IN2_NO_ACTIV
ITY_ALARM
IN2_PH_LOCK
_ALARM
IN1_FREQ_SO
FT_ALARM
IN1_FREQ_HA
RD_ALARM
IN1_NO_ACTIV
ITY_ALARM
IN1_PH_LOCK
_ALARM
Bit
Name
7
IN2_FREQ_SOFT_ALARM
6
IN2_FREQ_HARD_ALARM
5
IN2_NO_ACTIVITY_ALARM
4
IN2_PH_LOCK_ALARM
3
IN1_FREQ_SOFT_ALARM
2
IN1_FREQ_HARD_ALARM
1
IN1_NO_ACTIVITY_ALARM
0
IN1_PH_LOCK_ALARM
Description
This bit indicates whether IN2 is in frequency soft alarm status.
0: Input frequency within soft accept region.
1: Input frequency over the soft reject region.
This bit indicates whether IN2 is in frequency hard alarm status.
0: Input frequency within hard accept region.
1: Input frequency over the hard reject region.
This bit indicates whether IN2 is in no-activity alarm status.
0: No no-activity alarm.
1: In no-activity alarm status. (default)
This bit indicates whether IN2 is in phase lock alarm status.
0: No phase lock alarm. (default)
1: In phase lock alarm status.
If the PH_ALARM_TIMEOUT bit (b5, 09H) is ‘0’, this bit is cleared by writing ‘1’ to this bit; if the
PH_ALARM_TIMEOUT bit (b5, 09H) is ‘1’, this bit is cleared after a period (= TIME_OUT_VALUE[5:0] (b5~0, 08H) X
MULTI_FACTOR[1:0] (b7~6, 08H) in second) which starts from when the alarm is raised.
This bit indicates whether IN1 is in frequency soft alarm status.
0: Input frequency within soft accept region.
1: Input frequency over the soft reject region.
This bit indicates whether IN1 is in frequency hard alarm status.
0: Input frequency within hard accept region.
1: Input frequency over the hard reject region.
This bit indicates whether IN1 is in no-activity alarm status.
0: No no-activity alarm.
1: In no-activity alarm status. (default)
This bit indicates whether IN1 is in phase lock alarm status.
0: No phase lock alarm. (default)
1: In phase lock alarm status.
If the PH_ALARM_TIMEOUT bit (b5, 09H) is ‘0’, this bit is cleared by writing ‘1’ to this bit; if the
PH_ALARM_TIMEOUT bit (b5, 09H) is ‘1’, this bit is cleared after a period (= TIME_OUT_VALUE[5:0] (b5~0, 08H) X
MULTI_FACTOR[1:0] (b7~6, 08H) in second) which starts from when the alarm is raised.
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IDT82V3390 DATASHEET
SYNCHRONOUS ETHERNET WAN PLL
IN3_IN4_STS - Input Clock 3 & 4 Status
Address: 44H
Type: Read
Default Value: 01100110
7
6
5
4
3
2
1
0
IN4_FREQ_SO
FT_ALARM
IN4_FREQ_HAR
D_ALARM
IN4_NO_ACTIVI
TY_ALARM
IN4_PH_LOCK_
ALARM
IN3_FREQ_SO
FT_ALARM
IN3_FREQ_HAR
D_ALARM
IN3_NO_ACTIVI
TY_ALARM
IN3_PH_LOCK_
ALARM
Bit
Name
7
IN4_FREQ_SOFT_ALARM
6
IN4_FREQ_HARD_ALARM
5
IN4_NO_ACTIVITY_ALARM
4
IN4_PH_LOCK_ALARM
3
IN3_FREQ_SOFT_ALARM
2
IN3_FREQ_HARD_ALARM
1
IN3_NO_ACTIVITY_ALARM
0
IN3_PH_LOCK_ALARM
Description
This bit indicates whether IN4 is in frequency soft alarm status.
0: Input frequency within soft accept region.
1: Input frequency over the soft reject region.
This bit indicates whether IN4 is in frequency hard alarm status.
0: Input frequency within hard accept region.
1: Input frequency over the hard reject region.
This bit indicates whether IN4 is in no-activity alarm status.
0: No no-activity alarm.
1: In no-activity alarm status. (default)
This bit indicates whether IN4 is in phase lock alarm status.
0: No phase lock alarm. (default)
1: In phase lock alarm status.
If the PH_ALARM_TIMEOUT bit (b5, 09H) is ‘0’, this bit is cleared by writing ‘1’ to this bit; if the
PH_ALARM_TIMEOUT bit (b5, 09H) is ‘1’, this bit is cleared after a period (= TIME_OUT_VALUE[5:0] (b5~0,
08H) X MULTI_FACTOR[1:0] (b7~6, 08H) in second) which starts from when the alarm is raised.
This bit indicates whether IN3 is in frequency soft alarm status.
0: Input frequency within soft accept region.
1: Input frequency over the soft reject region.
This bit indicates whether IN3 is in frequency hard alarm status.
0: Input frequency within hard accept region.
1: Input frequency over the hard reject region.
This bit indicates whether IN3 is in no-activity alarm status.
0: No no-activity alarm.
1: In no-activity alarm status. (default)
This bit indicates whether IN3 is in phase lock alarm status.
0: No phase lock alarm. (default)
1: In phase lock alarm status.
If the PH_ALARM_TIMEOUT bit (b5, 09H) is ‘0’, this bit is cleared by writing ‘1’ to this bit; if the
PH_ALARM_TIMEOUT bit (b5, 09H) is ‘1’, this bit is cleared after a period (= TIME_OUT_VALUE[5:0] (b5~0,
08H) X MULTI_FACTOR[1:0] (b7~6, 08H) in second) which starts from when the alarm is raised.
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SYNCHRONOUS ETHERNET WAN PLL
IN5_IN6_STS - Input Clock 5 & 6 Status
Address: 45H
Type: Read
Default Value: 01100110
7
6
5
4
3
2
1
0
IN6_FREQ_S
OFT_ALARM
IN6_FREQ_HA
RD_ALARM
IN6_NO_ACTIVI
TY_ALARM
IN6_PH_LOCK_
ALARM
IN5_FREQ_SO
FT_ALARM
IN5_FREQ_HA
RD_ALARM
IN5_NO_ACTIVI
TY_ALARM
IN5_PH_LOCK_
ALARM
Bit
Name
7
IN6_FREQ_SOFT_ALARM
6
IN6_FREQ_HARD_ALARM
5
IN6_NO_ACTIVITY_ALARM
4
IN6_PH_LOCK_ALARM
3
IN5_FREQ_SOFT_ALARM
2
IN5_FREQ_HARD_ALARM
1
IN5_NO_ACTIVITY_ALARM
0
IN5_PH_LOCK_ALARM
Description
This bit indicates whether IN6 is in frequency soft alarm status.
0: Input frequency within soft accept region.
1: Input frequency over the soft reject region.
This bit indicates whether IN6 is in frequency hard alarm status.
0: Input frequency within hard accept region.
1: Input frequency over the hard reject region.
This bit indicates whether IN6 is in no-activity alarm status.
0: No no-activity alarm.
1: In no-activity alarm status. (default)
This bit indicates whether IN6 is in phase lock alarm status.
0: No phase lock alarm. (default)
1: In phase lock alarm status.
If the PH_ALARM_TIMEOUT bit (b5, 09H) is ‘0’, this bit is cleared by writing ‘1’ to this bit; if the
PH_ALARM_TIMEOUT bit (b5, 09H) is ‘1’, this bit is cleared after a period (= TIME_OUT_VALUE[5:0] (b5~0,
08H) X MULTI_FACTOR[1:0] (b7~6, 08H) in second) which starts from when the alarm is raised.
This bit indicates whether IN5 is in frequency soft alarm status.
0: Input frequency within soft accept region.
1: Input frequency over the soft reject region.
This bit indicates whether IN5 is in frequency hard alarm status.
0: Input frequency within hard accept region.
1: Input frequency over the hard reject region.
This bit indicates whether IN5 is in no-activity alarm status.
0: No no-activity alarm.
1: In no-activity alarm status. (default)
This bit indicates whether IN5 is in phase lock alarm status.
0: No phase lock alarm. (default)
1: In phase lock alarm status.
If the PH_ALARM_TIMEOUT bit (b5, 09H) is ‘0’, this bit is cleared by writing ‘1’ to this bit; if the
PH_ALARM_TIMEOUT bit (b5, 09H) is ‘1’, this bit is cleared after a period (= TIME_OUT_VALUE[5:0] (b5~0,
08H) X MULTI_FACTOR[1:0] (b7~6, 08H) in second) which starts from when the alarm is raised.
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SYNCHRONOUS ETHERNET WAN PLL
IN7_IN8_STS - Input Clock 7 & 8 Status
Address: 46H
Type: Read
Default Value: 01100110
7
6
5
4
3
2
1
0
IN8_FREQ_SO
FT_ALARM
IN8_FREQ_HA
RD_ALARM
IN8_NO_ACTIV
ITY_ALARM
IN8_PH_LOCK
_ALARM
IN7_FREQ_SO
FT_ALARM
IN7_FREQ_HA
RD_ALARM
IN7_NO_ACTIV
ITY_ALARM
IN7_PH_LOCK
_ALARM
Bit
Name
7
IN8_FREQ_SOFT_ALARM
6
IN8_FREQ_HARD_ALARM
5
IN8_NO_ACTIVITY_ALARM
4
IN8_PH_LOCK_ALARM
3
IN7_FREQ_SOFT_ALARM
2
IN7_FREQ_HARD_ALARM
1
IN7_NO_ACTIVITY_ALARM
0
IN7_PH_LOCK_ALARM
Description
This bit indicates whether IN8 is in frequency soft alarm status.
0: Input frequency within soft accept region.
1: Input frequency over the soft reject region.
This bit indicates whether IN8 is in frequency hard alarm status.
0: Input frequency within hard accept region.
1: Input frequency over the hard reject region.
This bit indicates whether IN8 is in no-activity alarm status.
0: No no-activity alarm.
1: In no-activity alarm status. (default)
This bit indicates whether IN8 is in phase lock alarm status.
0: No phase lock alarm. (default)
1: In phase lock alarm status.
If the PH_ALARM_TIMEOUT bit (b5, 09H) is ‘0’, this bit is cleared by writing ‘1’ to this bit; if the
PH_ALARM_TIMEOUT bit (b5, 09H) is ‘1’, this bit is cleared after a period (= TIME_OUT_VALUE[5:0] (b5~0, 08H) X
MULTI_FACTOR[1:0] (b7~6, 08H) in second) which starts from when the alarm is raised.
This bit indicates whether IN7 is in frequency soft alarm status.
0: Input frequency within soft accept region.
1: Input frequency over the soft reject region.
This bit indicates whether IN7 is in frequency hard alarm status.
0: Input frequency within hard accept region.
1: Input frequency over the hard reject region.
This bit indicates whether IN7 is in no-activity alarm status.
0: No no-activity alarm.
1: In no-activity alarm status. (default)
This bit indicates whether IN7 is in phase lock alarm status.
0: No phase lock alarm. (default)
1: In phase lock alarm status.
If the PH_ALARM_TIMEOUT bit (b5, 09H) is ‘0’, this bit is cleared by writing ‘1’ to this bit; if the
PH_ALARM_TIMEOUT bit (b5, 09H) is ‘1’, this bit is cleared after a period (= TIME_OUT_VALUE[5:0] (b5~0, 08H) X
MULTI_FACTOR[1:0] (b7~6, 08H) in second) which starts from when the alarm is raised.
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SYNCHRONOUS ETHERNET WAN PLL
IN9_IN10_STS - Input Clock 9 & 10 Status
Address: 47H
Type: Read
Default Value: 01100110
7
6
5
4
3
2
1
0
IN10_FREQ_S
OFT_ALARM
IN10_FREQ_H
ARD_ALARM
IN10_NO_ACTI
VITY_ALARM
IN10_PH_LOC
K_ALARM
IN9_FREQ_SOF
T_ALARM
IN9_FREQ_HAR
D_ALARM
IN9_NO_ACTIVI
TY_ALARM
IN9_PH_LOCK_
ALARM
Bit
Name
7
IN10_FREQ_SOFT_ALARM
6
IN10_FREQ_HARD_ALARM
5
IN10_NO_ACTIVITY_ALARM
4
IN10_PH_LOCK_ALARM
3
IN9_FREQ_SOFT_ALARM
2
IN9_FREQ_HARD_ALARM
1
IN9_NO_ACTIVITY_ALARM
0
IN9_PH_LOCK_ALARM
Description
This bit indicates whether IN10 is in frequency soft alarm status.
0: Input frequency within soft accept region.
1: Input frequency over the soft reject region.
This bit indicates whether IN10 is in frequency hard alarm status.
0: Input frequency within hard accept region.
1: Input frequency over the hard reject region.
This bit indicates whether IN10 is in no-activity alarm status.
0: No no-activity alarm.
1: In no-activity alarm status. (default)
This bit indicates whether IN10 is in phase lock alarm status.
0: No phase lock alarm. (default)
1: In phase lock alarm status.
If the PH_ALARM_TIMEOUT bit (b5, 09H) is ‘0’, this bit is cleared by writing ‘1’ to this bit; if the
PH_ALARM_TIMEOUT bit (b5, 09H) is ‘1’, this bit is cleared after a period (= TIME_OUT_VALUE[5:0] (b5~0,
08H) X MULTI_FACTOR[1:0] (b7~6, 08H) in second) which starts from when the alarm is raised.
This bit indicates whether IN9 is in frequency soft alarm status.
0: Input frequency within soft accept region.
1: Input frequency over the soft reject region.
This bit indicates whether IN9 is in frequency hard alarm status.
0: Input frequency within hard accept region.
1: Input frequency over the hard reject region.
This bit indicates whether IN9 is in no-activity alarm status.
0: No no-activity alarm.
1: In no-activity alarm status. (default)
This bit indicates whether IN9 is in phase lock alarm status.
0: No phase lock alarm. (default)
1: In phase lock alarm status.
If the PH_ALARM_TIMEOUT bit (b5, 09H) is ‘0’, this bit is cleared by writing ‘1’ to this bit; if the
PH_ALARM_TIMEOUT bit (b5, 09H) is ‘1’, this bit is cleared after a period (= TIME_OUT_VALUE[5:0] (b5~0,
08H) X MULTI_FACTOR[1:0] (b7~6, 08H) in second) which starts from when the alarm is raised.
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SYNCHRONOUS ETHERNET WAN PLL
IN11_IN12_STS - Input Clock 11 & 12 Status
Address: 48H
Type: Read
Default Value: 01100110
7
6
5
4
3
2
1
0
IN12_FREQ_S
OFT_ALARM
IN12_FREQ_H
ARD_ALARM
IN12_NO_ACTI
VITY_ALARM
IN12_PH_LOC
K_ALARM
IN11_FREQ_S
OFT_ALARM
IN11_FREQ_H
ARD_ALARM
IN11_NO_ACTI
VITY_ALARM
IN11_PH_LOCK
_ALARM
Bit
Name
7
IN12_FREQ_SOFT_ALARM
6
IN12_FREQ_HARD_ALARM
5
IN12_NO_ACTIVITY_ALARM
4
IN12_PH_LOCK_ALARM
3
IN11_FREQ_SOFT_ALARM
2
IN11_FREQ_HARD_ALARM
1
IN11_NO_ACTIVITY_ALARM
0
IN11_PH_LOCK_ALARM
Description
This bit indicates whether IN12 is in frequency soft alarm status.
0: Input frequency within soft accept region.
1: Input frequency over the soft reject region.
This bit indicates whether IN12 is in frequency hard alarm status.
0: Input frequency within hard accept region.
1: Input frequency over the hard reject region.
This bit indicates whether IN12 is in no-activity alarm status.
0: No no-activity alarm.
1: In no-activity alarm status. (default)
This bit indicates whether IN12 is in phase lock alarm status.
0: No phase lock alarm. (default)
1: In phase lock alarm status.
If the PH_ALARM_TIMEOUT bit (b5, 09H) is ‘0’, this bit is cleared by writing ‘1’ to this bit; if the
PH_ALARM_TIMEOUT bit (b5, 09H) is ‘1’, this bit is cleared after a period (= TIME_OUT_VALUE[5:0] (b5~0, 08H)
X MULTI_FACTOR[1:0] (b7~6, 08H) in second) which starts from when the alarm is raised.
This bit indicates whether IN11 is in frequency soft alarm status.
0: Input frequency within soft accept region.
1: Input frequency over the soft reject region.
This bit indicates whether IN11 is in frequency hard alarm status.
0: Input frequency within hard accept region.
1: Input frequency over the hard reject region.
This bit indicates whether IN11 is in no-activity alarm status.
0: No no-activity alarm.
1: In no-activity alarm status. (default)
This bit indicates whether IN11 is in phase lock alarm status.
0: No phase lock alarm. (default)
1: In phase lock alarm status.
If the PH_ALARM_TIMEOUT bit (b5, 09H) is ‘0’, this bit is cleared by writing ‘1’ to this bit; if the
PH_ALARM_TIMEOUT bit (b5, 09H) is ‘1’, this bit is cleared after a period (= TIME_OUT_VALUE[5:0] (b5~0, 08H)
X MULTI_FACTOR[1:0] (b7~6, 08H) in second) which starts from when the alarm is raised.
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SYNCHRONOUS ETHERNET WAN PLL
IN13_IN14_STS - Input Clock 13 & 14 Status
Address: 49H
Type: Read
Default Value: X110X110
7
6
5
4
3
2
1
0
IN14_FREQ_S
OFT_ALARM
IN14_FREQ_H
ARD_ALARM
IN14_NO_ACTI
VITY_ALARM
IN14_PH_LOC
K_ALARM
IN13_FREQ_S
OFT_ALARM
IN13_FREQ_H
ARD_ALARM
IN13_NO_ACTI
VITY_ALARM
IN13_PH_LOC
K_ALARM
Bit
Name
7
IN14_FREQ_SOFT_ALARM
6
IN14_FREQ_HARD_ALARM
5
IN14_NO_ACTIVITY_ALARM
4
IN14_PH_LOCK_ALARM
3
IN13_FREQ_SOFT_ALARM
2
IN13_FREQ_HARD_ALARM
1
IN13_NO_ACTIVITY_ALARM
0
IN13_PH_LOCK_ALARM
Description
This bit indicates whether IN14 is in frequency soft alarm status.
0: Input frequency within soft accept region.
1: Input frequency over the soft reject region.
This bit indicates whether IN14 is in frequency hard alarm status.
0: Input frequency within hard accept region.
1: Input frequency over the hard reject region.
This bit indicates whether IN14 is in no-activity alarm status.
0: No no-activity alarm.
1: In no-activity alarm status. (default)
This bit indicates whether IN14 is in phase lock alarm status.
0: No phase lock alarm. (default)
1: In phase lock alarm status.
If the PH_ALARM_TIMEOUT bit (b5, 09H) is ‘0’, this bit is cleared by writing ‘1’ to this bit; if the
PH_ALARM_TIMEOUT bit (b5, 09H) is ‘1’, this bit is cleared after a period (= TIME_OUT_VALUE[5:0] (b5~0, 08H) X
MULTI_FACTOR[1:0] (b7~6, 08H) in second) which starts from when the alarm is raised.
This bit indicates whether IN13 is in frequency soft alarm status.
0: Input frequency within soft accept region.
1: Input frequency over the soft reject region.
This bit indicates whether IN13 is in frequency hard alarm status.
0: Input frequency within hard accept region.
1: Input frequency over the hard reject region.
This bit indicates whether IN13 is in no-activity alarm status.
0: No no-activity alarm.
1: In no-activity alarm status. (default)
This bit indicates whether IN13 is in phase lock alarm status.
0: No phase lock alarm. (default)
1: In phase lock alarm status.
If the PH_ALARM_TIMEOUT bit (b5, 09H) is ‘0’, this bit is cleared by writing ‘1’ to this bit; if the
PH_ALARM_TIMEOUT bit (b5, 09H) is ‘1’, this bit is cleared after a period (= TIME_OUT_VALUE[5:0] (b5~0, 08H) X
MULTI_FACTOR[1:0] (b7~6, 08H) in second) which starts from when the alarm is raised.
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IDT82V3390 DATASHEET
7.2.5
SYNCHRONOUS ETHERNET WAN PLL
T0 / T4 DPLL INPUT CLOCK SELECTION REGISTERS
INPUT_VALID1_STS - Input Clocks Validity 1
Address: 4AH
Type: Read
Default Value: 00000000
7
6
5
4
3
2
1
0
IN8
IN7
IN6
IN5
IN4
IN3
IN2
IN1
Bit
Name
7-0
INn
Description
This bit indicates the validity of the corresponding INn. Here n is any one of 8 to 1.
0: Invalid. (default)
1: Valid.
INPUT_VALID2_STS - Input Clocks Validity 2
Address: 4BH
Type: Read
Default Value: XX000000
7
6
5
4
3
2
1
0
-
-
IN14
IN13
IN12
IN11
IN10
IN9
Bit
Name
7-6
-
5-0
INn
Description
Reserved.
This bit indicates the validity of the corresponding INn. Here n is any one of 14 to 9.
0: Invalid. (default)
1: Valid.
REMOTE_INPUT_VALID1_CNFG - Input Clocks Validity Configuration 1
Address: 4CH
Type: Read / Write
Default Value: 11111111
7
6
5
4
3
2
1
0
IN8_VALID
IN7_VALID
IN6_VALID
IN5_VALID
IN4_VALID
IN3_VALID
IN2_VALID
IN1_VALID
Bit
Name
7-0
INn_VALID
Description
This bit controls whether the corresponding INn is allowed to be locked for automatic selection. Here n is any one of 8 to 1.
0: Enabled.
1: Disabled. (default)
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REMOTE_INPUT_VALID2_CNFG - Input Clocks Validity Configuration 2
Address: 4DH
Type: Read / Write
Default Value: XX111111
7
6
5
4
3
2
1
0
-
-
IN14_VALID
IN13_VALID
IN12_VALID
IN11_VALID
IN10_VALID
IN9_VALID
Bit
Name
7-6
-
Description
5-0
INn_VALID
Reserved.
This bit controls whether the corresponding INn is allowed to be locked for automatic selection. Here n is any one of 14 to 9.
0: Enabled.
1: Disabled. (default)
PRIORITY_TABLE1_STS - Priority Status 1 *
Address: 4EH
Type: Read
Default Value: 00000000
7
6
5
4
3
2
1
0
HIGHEST_PRI
ORITY_VALIDA
TED3
HIGHEST_PRI
ORITY_VALIDA
TED2
HIGHEST_PRI
ORITY_VALIDA
TED1
HIGHEST_PRI
ORITY_VALIDA
TED0
CURRENTLY_S
ELECTED_INP
UT3
CURRENTLY_S
ELECTED_INP
UT2
CURRENTLY_S
ELECTED_INP
UT1
CURRENTLY_S
ELECTED_INP
UT0
Bit
7-4
3-0
Name
Description
These bits indicate a qualified input clock with the highest priority.
0000: No input clock is qualified. (default)
0001: IN1.
0010: IN2.
......
HIGHEST_PRIORITY_VALIDATED[3:0]
1101: IN13.
1110: IN14.
1111: Reserved.
Note that the input clock is indicated by these bits only when the corresponding INn (b7-0, 4CH) or INn
(b5-0, 4DH) bit is ‘0’.
These bits indicate the T0/T4 selected input clock.
0000: No input clock is selected; or the T4 selected input clock is the T0 DPLL output. (default)
0001: IN1 is selected.
0010: IN2 is selected.
......
CURRENTLY_SELECTED_INPUT[3:0]
1101: IN13 is selected.
1110: IN14 is selected.
1111: Reserved.
Note that the input clock is indicated by these bits only when the corresponding INn (b7-0, 4CH) or INn
(b5-0, 4DH) bit is ‘0’.
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SYNCHRONOUS ETHERNET WAN PLL
PRIORITY_TABLE2_STS - Priority Status 2 *
Address: 4FH
Type: Read
Default Value: 00000000
7
6
5
4
3
2
1
0
THIRD_HIGHE
ST_PRIORITY_
VALIDATED3
THIRD_HIGHE
ST_PRIORITY_
VALIDATED2
THIRD_HIGHE
ST_PRIORITY_
VALIDATED1
THIRD_HIGHE
ST_PRIORITY_
VALIDATED0
SECOND_HIGH
EST_PRIORITY
_VALIDATED3
SECOND_HIGH
EST_PRIORITY
_VALIDATED2
SECOND_HIGH
EST_PRIORITY
_VALIDATED1
SECOND_HIGH
EST_PRIORITY
_VALIDATED0
Bit
Name
Description
These bits indicate a qualified input clock with the third highest priority.
0000: No input clock is qualified. (default)
0001: IN1.
0010: IN2.
......
THIRD_HIGHEST_PRIORITY_VALIDATED[3:0]
1101: IN13.
1110: IN14.
1111: Reserved.
Note that the input clock is indicated by these bits only when the corresponding INn (b7-0,
4CH) or INn (b5-0, 4DH) bit is ‘0’.
These bits indicate a qualified input clock with the second highest priority.
0000: No input clock is qualified. (default)
0001: IN1.
0010: IN2.
......
SECOND_HIGHEST_PRIORITY_VALIDATED[3:0]
1101: IN13.
1110: IN14.
1111: Reserved.
Note that the input clock is indicated by these bits only when the corresponding INn (b7-0,
4CH) or INn (b5-0, 4DH) bit is ‘0’.
7-4
3-0
T0_INPUT_SEL_CNFG - T0 Selected Input Clock Configuration
Address: 50H
Type: Read / Write
Default Value: XXXX0000
7
6
5
4
3
2
1
0
-
-
-
-
T0_INPUT_SEL3
T0_INPUT_SEL2
T0_INPUT_SEL1
T0_INPUT_SEL0
Bit
Name
7-4
-
3-0
Description
Reserved.
This bit determines T0 input clock selection. It is valid only when the EXT_SW bit (b4, 0BH) is ‘0’.
0000: Automatic selection. (default)
0001: Forced selection - IN1 is selected.
0010: Forced selection - IN2 is selected.
T0_INPUT_SEL[3:0]
......
1101: Forced selection - IN13 is selected.
1110: Forced selection - IN14 is selected.
1111: Reserved.
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SYNCHRONOUS ETHERNET WAN PLL
T4_INPUT_SEL_CNFG - T4 Selected Input Clock Configuration
Address: 51H
Type: Read / Write
Default Value: X0000000
7
6
5
4
3
2
1
0
-
T4_LOCK_T0
T0_FOR_T4
T4_TEST_T0_PH
T4_INPUT_SEL3
T4_INPUT_SEL2
T4_INPUT_SEL1
T4_INPUT_SEL0
Bit
Name
7
-
6
5
4
3-0
Description
Reserved.
This bit determines whether the T4 DPLL locks to a T0 DPLL output or locks independently from the T0 DPLL.
T4_LOCK_T0
0: Independently from the T0 path. (default)
1: Locks to a 77.76 MHz or 8 kHz signal from the T0 DPLL 77.76 MHz path.
This bit is valid only when the T4_LOCK_T0 bit (b6, 51H) is ‘1’. It determines whether a 77.76 MHz or 8 kHz signal from the
T0 DPLL 77.76 MHz path is selected by the T4 DPLL.
T0_FOR_T4
0: 77.76 MHz. (default)
1: 8 kHz.
This bit determines whether T4 selected input clock is compared with the feedback signal of the T4 DPLL for T4 DPLL locking
or is compared with the T0 selected input clock to get the phase difference between T0 and T4 selected input clocks.
T4_TEST_T0_PH
0: The T4 DPLL output. (default)
1: The T0 selected input clock.
These bits are valid only when the T4_LOCK_T0 bit (b6, 51H) is ‘0’. They determines the T4 DPLL input clock selection.
0000: Automatic selection. (default)
0001: Forced selection - IN1 is selected.
0010: Forced selection - IN2 is selected.
T4_INPUT_SEL[3:0]
......
1101: Forced selection - IN13 is selected.
1110: Forced selection - IN14 is selected.
1111: Reserved.
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IDT82V3390 DATASHEET
7.2.6
SYNCHRONOUS ETHERNET WAN PLL
T0 / T4 DPLL STATE MACHINE CONTROL REGISTERS
OPERATING_STS - DPLL Operating Status
Address: 52H
Type: Read
Default Value: 10000001
7
6
5
4
3
2
1
0
EX_SYNC_ALA
RM_MON
T4_DPLL_LO
CK
T0_DPLL_SOFT
_FREQ_ALARM
T4_DPLL_SOFT
_FREQ_ALARM
T0_DPLL_LO
CK
T0_DPLL_OPER
ATING_MODE2
T0_DPLL_OPER
ATING_MODE1
T0_DPLL_OPER
ATING_MODE0
Bit
7
6
5
4
3
2-0
Name
Description
This bit indicates whether the frame sync input signal is in external sync alarm status.
0: No external sync alarm.
1: In external sync alarm status. (default)
This bit indicates the T4 DPLL locking status.
T4_DPLL_LOCK
0: Unlocked. (default)
1: Locked.
This bit indicates whether the T0 DPLL is in soft alarm status.
T0_DPLL_SOFT_FREQ_ALARM 0: No T0 DPLL soft alarm. (default)
1: In T0 DPLL soft alarm status.
This bit indicates whether the T4 DPLL is in soft alarm status.
T4_DPLL_SOFT_FREQ_ALARM 0: No T4 DPLL soft alarm. (default)
1: In T4 DPLL soft alarm status.
This bit indicates the T0 DPLL locking status.
T0_DPLL_LOCK
0: Unlocked. (default)
1: Locked.
These bits indicate the current operating mode of T0 DPLL.
000: Reserved.
001: Free-Run. (default)
010: Holdover.
T0_DPLL_OPERATING_MODE[2:0] 011: Reserved.
100: Locked.
101: Pre-Locked2.
110: Pre-Locked.
111: Lost-Phase.
EX_SYNC_ALARM_MON
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IDT82V3390 DATASHEET
SYNCHRONOUS ETHERNET WAN PLL
T0_OPERATING_MODE_CNFG - T0 DPLL Operating Mode Configuration
Address: 53H
Type: Read / Write
Default Value: XXXXX000
7
6
5
4
3
2
1
0
-
-
-
-
-
T0_OPERATING_MODE2
T0_OPERATING_MODE1
T0_OPERATING_MODE0
Bit
Name
7-3
-
2-0
Description
Reserved.
These bits control the T0 DPLL operating mode.
000: Automatic. (default)
001: Forced - Free-Run.
010: Forced - Holdover.
T0_OPERATING_MODE[2:0] 011: Reserved.
100: Forced - Locked.
101: Forced - Pre-Locked2.
110: Forced - Pre-Locked.
111: Forced - Lost-Phase.
T4_OPERATING_MODE_CNFG - T4 DPLL Operating Mode Configuration
Address: 54H
Type: Read / Write
Default Value: XXXXX000
7
6
5
4
3
2
1
0
-
-
-
-
-
T4_OPERATING_MODE2
T4_OPERATING_MODE1
T4_OPERATING_MODE0
Bit
Name
7-3
-
2-0
Description
Reserved.
These bits control the T4 DPLL operating mode.
000: Automatic. (default)
001: Forced - Free-Run.
T4_OPERATING_MODE[2:0] 010: Forced - Holdover.
011: Reserved.
100: Forced - Locked.
101, 110, 111: Reserved.
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IDT82V3390 DATASHEET
7.2.7
SYNCHRONOUS ETHERNET WAN PLL
T0 / T4 DPLL & APLL CONFIGURATION REGISTERS
T0_DPLL_APLL_PATH_CNFG - T0 DPLL & APLL Path Configuration
Address: 55H
Type: Read / Write
Default Value: 00000X0X
7
6
5
4
3
2
1
0
T0_APLL_PATH
3
T0_APLL_PA
TH2
T0_APLL_PA
TH1
T0_APLL_PA
TH0
T0_GSM_OBSAI_
16E1_16T1_SEL1
T0_GSM_OBSAI_
16E1_16T1_SEL0
T0_12E1_24T1_
E3_T3_SEL1
T0_12E1_24T1_
E3_T3_SEL0
Bit
7-4
3-2
1-0
Name
Description
These bits select an input to the T0 APLL.
0000: The output of T0 DPLL 77.76 MHz path. (default)
0001: The output of T0 DPLL 12E1/24T1/E3/T3 path.
0010: The output of T0 DPLL 16E1/16T1 path.
0011: The output of T0 DPLL GSM/OBSAI/16E1/16T1 path.
0100: The output of T4 DPLL 77.76 MHz path.
T0_APLL_PATH[3:0]
0101: The output of T4 DPLL 12E1/24T1/E3/T3 path.
0110: The output of T4 DPLL 16E1/16T1 path.
0111: The output of T4 DPLL GSM/GPS/16E1/16T1 path.
1000: T0 ETH path.
1100: T4 ETH path.
1101~1111: Reserved.
These bits select an output clock from the T0 DPLL GSM/OBSAI/16E1/16T1 path.
00: 16E1.
01: 16T1.
T0_GSM_OBSAI_16E1_16T1_SEL[1:0] 10: GSM.
11: OBSAI.
The default value of the T0_GSM_OBSAI_16E1_16T1_SEL0 bit is determined by the SONET/SDH pin during reset.
These bits select an output clock from the T0 DPLL 12E1/24T1/E3/T3 path.
00: 12E1.
01: 24T1.
10: E3.
T0_12E1_24T1_E3_T3_SEL[1:0]
11: T3.
The default value of the T0_12E1_24T1_E3_T3_SEL0 bit is determined by the SONET/SDH pin during
reset.
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T0_DPLL_START_BW_DAMPING_CNFG - T0 DPLL Start Bandwidth & Damping Factor Configuration
Address: 56H
Type: Read / Write
Default Value: 01101111
7
6
5
4
3
2
1
0
T0_DPLL_STA
RT_DAMPING2
T0_DPLL_STA
RT_DAMPING1
T0_DPLL_STA
RT_DAMPING0
T0_DPLL_STA
RT_BW4
T0_DPLL_STA
RT_BW3
T0_DPLL_STA
RT_BW2
T0_DPLL_STA
RT_BW1
T0_DPLL_STA
RT_BW0
Bit
7-5
4-0
Name
Description
These bits set the starting damping factor for T0 DPLL.
000: Reserved.
001: 1.2.
010: 2.5.
T0_DPLL_START_DAMPING[2:0]
011: 5. (default)
100: 10.
101: 20.
110, 111: Reserved.
These bits set the starting bandwidth for T0 DPLL.
00000: 0.5 mHz.
00001: 1 mHz.
00010: 2 mHz.
00011: 4 mHz.
00100: 8 mHz.
00101: 15 mHz.
00110: 30 mHz.
00111: 60 mHz.
01000: 0.1 Hz.
01001: 0.3 Hz.
T0_DPLL_START_BW[4:0]
01010: 0.6 Hz.
01011: 1.2 Hz.
01100: 2.5 Hz.
01101: 4 Hz.
01110: 8 Hz.
01111: 18 Hz. (default)
10000: 35 Hz.
10001: 70 Hz.
10010: 560 Hz.
10011 ~ 11111: Reserved.
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T0_DPLL_ACQ_BW_DAMPING_CNFG - T0 DPLL Acquisition Bandwidth & Damping Factor Configuration
Address: 57H
Type: Read / Write
Default Value: 01101111
7
6
5
4
3
2
1
0
T0_DPLL_ACQ
_DAMPING2
T0_DPLL_ACQ
_DAMPING1
T0_DPLL_ACQ
_DAMPING0
T0_DPLL_ACQ
_BW4
T0_DPLL_ACQ
_BW3
T0_DPLL_ACQ
_BW2
T0_DPLL_ACQ
_BW1
T0_DPLL_ACQ
_BW0
Bit
7-5
4-0
Name
Description
These bits set the acquisition damping factor for T0 DPLL.
000: Reserved.
001: 1.2.
010: 2.5.
T0_DPLL_ACQ_DAMPING[2:0]
011: 5. (default)
100: 10.
101: 20.
110, 111: Reserved.
These bits set the acquisition bandwidth for T0 DPLL.
00000: 0.5 mHz.
00001: 1 mHz.
00010: 2 mHz.
00011: 4 mHz.
00100: 8 mHz.
00101: 15 mHz.
00110: 30 mHz.
00111: 60 mHz.
01000: 0.1 Hz.
01001: 0.3 Hz.
T0_DPLL_ACQ_BW[4:0]
01010: 0.6 Hz.
01011: 1.2 Hz.
01100: 2.5 Hz.
01101: 4 Hz.
01110: 8 Hz.
01111: 18 Hz. (default)
10000: 35 Hz.
10001: 70 Hz.
10010: 560 Hz.
10011 ~ 11111: Reserved.
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T0_DPLL_LOCKED_BW_DAMPING_CNFG - T0 DPLL Locked Bandwidth & Damping Factor Configuration
Address: 58H
Type: Read / Write
Default Value: 01101011
7
6
5
4
3
2
1
0
T0_DPLL_LOCK
ED_DAMPING2
T0_DPLL_LOCK
ED_DAMPING1
T0_DPLL_LOCK
ED_DAMPING0
T0_DPLL_LOC
KED_BW4
T0_DPLL_LOC
KED_BW3
T0_DPLL_LOC
KED_BW2
T0_DPLL_LOC
KED_BW1
T0_DPLL_LOC
KED_BW0
Bit
7-5
4-0
Name
Description
These bits set the locked damping factor for T0 DPLL.
000: Reserved.
001: 1.2.
010: 2.5.
T0_DPLL_LOCKED_DAMPING[2:0]
011: 5. (default)
100: 10.
101: 20.
110, 111: Reserved.
These bits set the locked bandwidth for T0 DPLL.
00000: 0.5 mHz.
00001: 1 mHz.
00010: 2 mHz.
00011: 4 mHz.
00100: 8 mHz.
00101: 15 mHz.
00110: 30 mHz.
00111: 60 mHz.
01000: 0.1 Hz.
01001: 0.3 Hz.
T0_DPLL_LOCKED_BW[4:0]
01010: 0.6 Hz.
01011: 1.2 Hz. (default)
01100: 2.5 Hz.
01101: 4 Hz.
01110: 8 Hz.
01111: 18 Hz.
10000: 35 Hz.
10001: 70 Hz.
10010: 560 Hz.
10011 ~ 11111: Reserved.
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T0_BW_OVERSHOOT_CNFG - T0 DPLL Bandwidth Overshoot Configuration
Address: 59H
Type: Read / Write
Default Value: 1XXX1XXX
7
6
5
4
3
2
1
0
AUTO_BW_SEL
-
-
-
T0_LIMT
-
-
-
Bit
7
6-4
3
2-0
Name
Description
This bit determines whether starting or acquisition bandwidth / damping factor is used for T0 DPLL.
0: The starting and acquisition bandwidths / damping factors are not used. Only the locked bandwidth / damping factor is used
AUTO_BW_SEL regardless of the T0 DPLL locking stage.
1: The starting, acquisition or locked bandwidth / damping factor is used automatically depending on different T0 DPLL locking
stages. (default)
Reserved.
This bit determines whether the integral path value is frozen when the T0 DPLL hard limit is reached.
T0_LIMT
0: Not frozen.
1: Frozen. It will minimize the subsequent overshoot when T0 DPLL is pulling in. (default)
Reserved.
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PHASE_LOSS_COARSE_LIMIT_CNFG - Phase Loss Coarse Detector Limit Configuration *
Address: 5AH
Type: Read / Write
Default Value: 10000101
7
6
5
4
3
2
1
0
COARSE_PH_L
OS_LIMT_EN
WIDE_EN
MULTI_PH_APP
MULTI_PH_8K_
4K_2K_EN
PH_LOS_COA
RSE_LIMT3
PH_LOS_COA
RSE_LIMT2
PH_LOS_COA
RSE_LIMT1
PH_LOS_COA
RSE_LIMT0
Bit
7
6
5
Name
Description
This bit controls whether the occurrence of the coarse phase loss will result in the T0/T4 DPLL unlocked.
COARSE_PH_LOS_LIMT_EN 0: Disabled.
1: Enabled. (default)
WIDE_EN
Refer to the description of the MULTI_PH_8K_4K_2K_EN bit (b4, 5AH).
This bit determines whether the PFD output of T0/T4 DPLL is limited to ±1 UI or is limited to the coarse phase limit.
0: Limited to ±1 UI. (default)
1: Limited to the coarse phase limit. When the selected input clock is of 2 kHz, 4 kHz or 8 kHz, the coarse phase limit depends
MULTI_PH_APP
on the MULTI_PH_8K_4K_2K_EN bit, the WIDE_EN bit and the PH_LOS_COARSE_LIMT[3:0] bits; when the selected input
clock is of other frequencies but 2 kHz, 4 kHz and 8 kHz, the coarse phase limit depends on the WIDE_EN bit and the
PH_LOS_COARSE_LIMT[3:0] bits. Refer to the description of the MULTI_PH_8K_4K_2K_EN bit (b4, 5AH) for details.
This bit, together with the WIDE_EN bit (b6, 5AH) and the PH_LOS_COARSE_LIMT[3:0] bits (b3~0, 5AH), determines the
coarse phase limit when the selected input clock is of 2 kHz, 4 kHz or 8 kHz. When the selected input clock is of other frequencies but 2 kHz, 4 kHz and 8 kHz, the coarse phase limit depends on the WIDE_EN bit and the PH_LOS_COARSE_LIMT[3:0]
bits.
Selected Input Clock MULTI_PH_8K_4K_2K_EN WIDE_EN
4
0
MULTI_PH_8K_4K_2K_EN
2 kHz, 4 kHz or 8 kHz
other than 2 kHz, 4
kHz and 8 kHz
1
don’t-care
0
1
0
don’t-care
1
Coarse Phase Limit
±1 UI
±1 UI
set by the PH_LOS_COARSE_LIMT[3:0] bits
(b3~0, 5AH).
±1 UI
set by the PH_LOS_COARSE_LIMT[3:0] bits
(b3~0, 5AH).
These bit set the coarse phase limit. The limit is used only in some cases. Refer to the description of the
MULTI_PH_8K_4K_2K_EN bit (b4, 5AH).
0000: ±1 UI.
0001: ±3 UI.
0010: ±7 UI.
0011: ±15 UI.
3 - 0 PH_LOS_COARSE_LIMT[3:0] 0100: ±31 UI.
0101: ±63 UI. (default)
0110: ±127 UI.
0111: ±255 UI.
1000: ±511 UI.
1001: ±1023 UI (T0); Reserved (T4).
1010-1111: Reserved.
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PHASE_LOSS_FINE_LIMIT_CNFG - Phase Loss Fine Detector Limit Configuration *
Address: 5BH
Type: Read / Write
Default Value: 10XXX010
7
6
5
4
3
2
1
0
FINE_PH_LOS_
LIMT_EN
FAST_LOS_SW
-
-
-
PH_LOS_FINE
_LIMT2
PH_LOS_FINE
_LIMT1
PH_LOS_FINE
_LIMT0
Bit
7
6
5-3
2-0
Name
Description
This bit controls whether the occurrence of the fine phase loss will result in the T0/T4 DPLL unlocked.
FINE_PH_LOS_LIMT_EN 0: Disabled.
1: Enabled. (default)
The value in this bit can be switched only when it is available for T0 path; this bit is always ‘1’ when it is available for T4
path.
This bit controls whether the occurrence of the fast loss will result in the T0/T4 DPLL unlocked.
FAST_LOS_SW
0: Does not result in the T0 DPLL unlocked. T0 DPLL will enter Temp-Holdover mode automatically. (default)
1: Results in the T0/T4 DPLL unlocked. For T0 path, T0 DPLL will enter Lost-Phase mode if the T0 DPLL operating
mode is switched automatically.
Reserved.
These bits set a fine phase limit.
000: 0.
001: ± (45 ° ~ 90 °).
010: ± (90 ° ~ 180 °). (default)
PH_LOS_FINE_LIMT[2:0] 011: ± (180 ° ~ 360 °).
100: ± (20 ns ~ 25 ns).
101: ± (60 ns ~ 65 ns).
110: ± (120 ns ~ 125 ns).
111: ± (950 ns ~ 955 ns).
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T0_HOLDOVER_MODE_CNFG - T0 DPLL Holdover Mode Configuration
Address: 5CH
Type: Read / Write
Default Value: 010001XX
7
6
5
4
3
2
1
0
MAN_HOLDOV
ER
AUTO_AVG
FAST_AVG
READ_AVG
TEMP_HOLDO
VER_MODE1
TEMP_HOLDO
VER_MODE0
-
-
Bit
Name
Description
7
6
MAN_HOLDOVER
AUTO_AVG
Refer to the description of the FAST_AVG bit (b5, 5CH).
Refer to the description of the FAST_AVG bit (b5, 5CH).
This bit, together with the AUTO_AVG bit (b6, 5CH) and the MAN_HOLDOVER bit (b7, 5CH), determines a frequency offset acquiring method in T0 DPLL Holdover Mode.
MAN_HOLDOVER
5
AUTO_AVG
FAST_AVG
Frequency Offset Acquiring Method
0
don’t-care
0
1
Automatic Instantaneous
Automatic Slow Averaged (default)
Automatic Fast Averaged
Manual
FAST_AVG
0
1
1
don’t-care
This bit controls the holdover frequency offset reading, which is read from the T0_HOLDOVER_FREQ[23:0] bits
(5FH ~ 5DH).
0: The value read from the T0_HOLDOVER_FREQ[23:0] bits (5FH ~ 5DH) is equal to the one written to them.
(default)
READ_AVG
1: The value read from the T0_HOLDOVER_FREQ[23:0] bits (5FH ~ 5DH) is not equal to the one written to them.
The value is acquired by Automatic Slow Averaged method if the FAST_AVG bit (b5, 5CH) is ‘0’; or is acquired by
Automatic Fast Averaged method if the FAST_AVG bit (b5, 5CH) is ‘1’.
These bits determine the frequency offset acquiring method in T0 DPLL Temp-Holdover Mode.
00: The method is the same as that used in T0 DPLL Holdover mode.
TEMP_HOLDOVER_MODE[1:0] 01: Automatic Instantaneous. (default)
10: Automatic Fast Averaged.
11: Automatic Slow Averaged.
Reserved.
4
3-2
1-0
T0_HOLDOVER_FREQ[7:0]_CNFG - T0 DPLL Holdover Frequency Configuration 1
Address: 5DH
Type: Read / Write
Default Value: 00000000
7
6
5
4
3
2
1
0
T0_HOLDOVER
_FREQ7
T0_HOLDOVER
_FREQ6
T0_HOLDOVER
_FREQ5
T0_HOLDOVE
R_FREQ4
T0_HOLDOVE
R_FREQ3
T0_HOLDOVE
R_FREQ2
T0_HOLDOVE
R_FREQ1
T0_HOLDOVE
R_FREQ0
Bit
7-0
Name
Description
T0_HOLDOVER_FREQ[7:0] Refer to the description of the T0_HOLDOVER_FREQ[23:16] bits (b7~0, 5FH).
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T0_HOLDOVER_FREQ[15:8]_CNFG - T0 DPLL Holdover Frequency Configuration 2
Address: 5EH
Type: Read / Write
Default Value: 00000000
7
6
5
4
3
2
1
0
T0_HOLDOVER
_FREQ15
T0_HOLDOVER
_FREQ14
T0_HOLDOVER
_FREQ13
T0_HOLDOVE
R_FREQ12
T0_HOLDOVE
R_FREQ11
T0_HOLDOVE
R_FREQ10
T0_HOLDOVE
R_FREQ9
T0_HOLDOVE
R_FREQ8
Bit
Name
7-0
Description
T0_HOLDOVER_FREQ[15:8] Refer to the description of the T0_HOLDOVER_FREQ[23:16] bits (b7~0, 5FH).
T0_HOLDOVER_FREQ[23:16]_CNFG - T0 DPLL Holdover Frequency Configuration 3
Address: 5FH
Type: Read / Write
Default Value: 00000000
7
6
5
4
3
2
1
0
T0_HOLDOVER
_FREQ23
T0_HOLDOVER
_FREQ22
T0_HOLDOVER
_FREQ21
T0_HOLDOVE
R_FREQ20
T0_HOLDOVE
R_FREQ19
T0_HOLDOVE
R_FREQ18
T0_HOLDOVE
R_FREQ17
T0_HOLDOVE
R_FREQ16
Bit
7-0
Name
Description
The T0_HOLDOVER_FREQ[23:0] bits represent a 2’s complement signed integer.
In T0 DPLL Holdover mode, the value written to these bits multiplied by 0.000011 is the frequency offset set manuT0_HOLDOVER_FREQ[23:16]
ally; the value read from these bits multiplied by 0.000011 is the frequency offset automatically slow or fast averaged or manually set, as determined by the READ_AVG bit (b4, 5CH) and the FAST_AVG bit (b5, 5CH).
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T4_DPLL_APLL_PATH_CNFG - T4 DPLL & APLL Path Configuration
Address: 60H
Type: Read / Write
Default Value: 01000X0X
7
6
5
4
3
2
1
0
T4_APLL_PATH
3
T4_APLL_PA
TH2
T4_APLL_PA
TH1
T4_APLL_PA
TH0
T4_GSM_GPS_16
E1_16T1_SEL1
T4_GSM_GPS_16
E1_16T1_SEL0
T4_12E1_24T1_
E3_T3_SEL1
T4_12E1_24T1_
E3_T3_SEL0
Bit
7-4
3-2
1-0
Name
Description
These bits select an input to the T4 APLL.
0000: The output of T0 DPLL 77.76 MHz path.
0001: The output of T0 DPLL 12E1/24T1/E3/T3 path.
0010: The output of T0 DPLL 16E1/16T1 path.
0011: The output of T0 DPLL GSM/OBSAI/16E1/16T1 path.
0100: The output of T4 DPLL 77.76 MHz path. (default)
T4_APLL_PATH[3:0]
0101: The output of T4 DPLL 12E1/24T1/E3/T3 path.
0110: The output of T4 DPLL 16E1/16T1 path.
0111: The output of T4 DPLL GSM/GPS/16E1/16T1 path.
1000: T0 ETH path.
1100: T4 ETH path.
1101~1111: Reserved.
These bits select an output clock from the T4 DPLL GSM/GPS/16E1/16T1 path.
00: 16E1.
01: 16T1.
T4_GSM_GPS_16E1_16T1_SEL[1:0] 10: GSM.
11: GPS.
The default value of the T0_GSM_GPS_16E1_16T1_SEL0 bit is determined by the SONET/SDH pin during
reset.
These bits select an output clock from the T4 DPLL 12E1/24T1/E3/T3 path.
00: 12E1.
01: 24T1.
T4_12E1_24T1_E3_T3_SEL[1:0]
10: E3.
11: T3.
The default value of the T4_12E1_24T1_E3_T3_SEL0 bit is determined by the SONET/SDH pin during reset.
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T4_DPLL_LOCKED_BW_DAMPING_CNFG - T4 DPLL Locked Bandwidth & Damping Factor Configuration
Address: 61H
Type: Read / Write
Default Value: 011XXX00
7
6
5
4
3
2
1
0
T4_DPLL_LOCK
ED_DAMPING2
T4_DPLL_LOCK
ED_DAMPING1
T4_DPLL_LOCK
ED_DAMPING0
-
-
-
T4_DPLL_LOC
KED_BW1
T4_DPLL_LOC
KED_BW0
Bit
Name
7-5
4-2
1-0
Description
These bits set the locked damping factor for T4 DPLL.
000: Reserved.
001: 1.2.
010: 2.5.
T4_DPLL_LOCKED_DAMPING[2:0]
011: 5. (default)
100: 10.
101: 20.
110, 111: Reserved.
Reserved.
These bits set the locked bandwidth for T4 DPLL.
00: 18 Hz. (default)
01: 35 Hz.
T4_DPLL_LOCKED_BW[1:0]
10: 70 Hz.
11: 560 Hz.
CURRENT_DPLL_FREQ[7:0]_STS - DPLL Current Frequency Status 1 *
Address: 62H
Type: Read
Default Value: 00000000
7
6
5
4
3
2
1
0
CURRENT_DP
LL_FREQ7
CURRENT_DP
LL_FREQ6
CURRENT_DP
LL_FREQ5
CURRENT_DP
LL_FREQ4
CURRENT_DP
LL_FREQ3
CURRENT_DP
LL_FREQ2
CURRENT_DP
LL_FREQ1
CURRENT_DP
LL_FREQ0
Bit
Name
7-0
Description
CURRENT_DPLL_FREQ[7:0] Refer to the description of the CURRENT_DPLL_FREQ[23:16] bits (b7~0, 64H).
CURRENT_DPLL_FREQ[15:8]_STS - DPLL Current Frequency Status 2 *
Address: 63H
Type: Read
Default Value: 00000000
7
6
5
4
3
2
1
0
CURRENT_DP
LL_FREQ15
CURRENT_DP
LL_FREQ14
CURRENT_DP
LL_FREQ13
CURRENT_DP
LL_FREQ12
CURRENT_DP
LL_FREQ11
CURRENT_DP
LL_FREQ10
CURRENT_DP
LL_FREQ9
CURRENT_DP
LL_FREQ8
Bit
7-0
Name
Description
CURRENT_DPLL_FREQ[15:8] Refer to the description of the CURRENT_DPLL_FREQ[23:16] bits (b7~0, 64H).
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CURRENT_DPLL_FREQ[23:16]_STS - DPLL Current Frequency Status 3 *
Address: 64H
Type: Read
Default Value: 00000000
7
6
5
4
3
2
1
0
CURRENT_DP
LL_FREQ23
CURRENT_DP
LL_FREQ22
CURRENT_DP
LL_FREQ21
CURRENT_DP
LL_FREQ20
CURRENT_DP
LL_FREQ19
CURRENT_DP
LL_FREQ18
CURRENT_DP
LL_FREQ17
CURRENT_DP
LL_FREQ16
Bit
Name
Description
The CURRENT_DPLL_FREQ[23:0] bits represent a 2’s complement signed integer. If the value in these bits is mulCURRENT_DPLL_FREQ[23:16] tiplied by 0.000011, the current frequency offset of the T0/T4 DPLL output in ppm with respect to the master clock
will be obtained.
7-0
DPLL_FREQ_SOFT_LIMIT_CNFG - DPLL Soft Limit Configuration
Address: 65H
Type: Read / Write
Default Value: 10001100
7
6
5
4
3
2
1
0
FREQ_LIMT_P
H_LOS
DPLL_FREQ_S
OFT_LIMT6
DPLL_FREQ_S
OFT_LIMT5
DPLL_FREQ_S
OFT_LIMT4
DPLL_FREQ_S
OFT_LIMT3
DPLL_FREQ_S
OFT_LIMT2
DPLL_FREQ_S
OFT_LIMT1
DPLL_FREQ_S
OFT_LIMT0
Bit
Name
Description
This bit determines whether the T0/T4 DPLL in hard alarm status will result in it unlocked.
0: Disabled.
1: Enabled. (default)
These bits represent an unsigned integer. If the value is multiplied by 0.724, the DPLL soft limit for T0 and T4 paths in
DPLL_FREQ_SOFT_LIMT[6:0] ppm will be obtained.
The DPLL soft limit is symmetrical about zero.
7
FREQ_LIMT_PH_LOS
6-0
DPLL_FREQ_HARD_LIMIT[7:0]_CNFG - DPLL Hard Limit Configuration 1
Address: 66H
Type: Read / Write
Default Value: 10101011
7
6
5
4
3
2
1
0
DPLL_FREQ_H
ARD_LIMT7
DPLL_FREQ_H
ARD_LIMT6
DPLL_FREQ_H
ARD_LIMT5
DPLL_FREQ_H
ARD_LIMT4
DPLL_FREQ_H
ARD_LIMT3
DPLL_FREQ_H
ARD_LIMT2
DPLL_FREQ_H
ARD_LIMT1
DPLL_FREQ_H
ARD_LIMT0
Bit
7-0
Name
Description
DPLL_FREQ_HARD_LIMT[7:0] Refer to the description of the DPLL_FREQ_HARD_LIMT[15:8] bits (b7~0, 67H).
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DPLL_FREQ_HARD_LIMIT[15:8]_CNFG - DPLL Hard Limit Configuration 2
Address: 67H
Type: Read / Write
Default Value: 00011001
7
6
5
4
3
2
1
0
DPLL_FREQ_H
ARD_LIMT15
DPLL_FREQ_H
ARD_LIMT14
DPLL_FREQ_H
ARD_LIMT13
DPLL_FREQ_H
ARD_LIMT12
DPLL_FREQ_H
ARD_LIMT11
DPLL_FREQ_H
ARD_LIMT10
DPLL_FREQ_H
ARD_LIMT9
DPLL_FREQ_H
ARD_LIMT8
Bit
Name
7-0
Description
The DPLL_FREQ_HARD_LIMT[15:0] bits represent an unsigned integer. If the value is multiplied by 0.0014, the
DPLL_FREQ_HARD_LIMT[15:8] DPLL hard limit for T0 and T4 paths in ppm will be obtained.
The DPLL hard limit is symmetrical about zero.
CURRENT_DPLL_PHASE[7:0]_STS - DPLL Current Phase Status 1 *
Address: 68H
Type: Read
Default Value: 00000000
7
6
5
4
3
2
1
0
CURRENT_PH
_DATA7
CURRENT_PH
_DATA6
CURRENT_PH
_DATA5
CURRENT_PH
_DATA4
CURRENT_PH
_DATA3
CURRENT_PH
_DATA2
CURRENT_PH
_DATA1
CURRENT_PH
_DATA0
Bit
Name
7-0
Description
CURRENT_PH_DATA[7:0] Refer to the description of the CURRENT_PH_DATA[15:8] bits (b7~0, 69H).
CURRENT_DPLL_PHASE[15:8]_STS - DPLL Current Phase Status 2 *
Address: 69H
Type: Read
Default Value: 00000000
7
6
5
4
3
2
1
0
CURRENT_PH
_DATA15
CURRENT_PH
_DATA14
CURRENT_PH
_DATA13
CURRENT_PH
_DATA12
CURRENT_PH
_DATA11
CURRENT_PH
_DATA10
CURRENT_PH
_DATA9
CURRENT_PH
_DATA8
Bit
7-0
Name
Description
The CURRENT_PH_DATA[15:0] bits represent a 2’s complement signed integer. If the value is multiplied by 0.61, the
CURRENT_PH_DATA[15:8]
averaged phase error of the T0/T4 DPLL feedback with respect to the selected input clock in ns will be obtained.
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T0_T4_APLL_BW_CNFG - T0 / T4 APLL Bandwidth Configuration
Address: 6AH
Type: Read / Write
Default Value: 10011011
7
6
5
4
3
2
1
0
-
APLL
T0_APLL_BW2
T0_APLL_BW1
T0_APLL_BW0
T4_APLL_BW2
T4_APLL_BW1
T4_APLL_BW0
Bit
Name
7
-
6
5-3
2-0
Description
Reserved.
For best jitter performance, the following bits in the MS_SL_CTRL_CNFG, T0_T4_APLL_BW_CNFG and APLL_CNFG registers must be set.
APLL Settings Bit 7 to Bit 3 of MS_SEL_CTRL_CNFG register (address 13H) must be set to 01010.
Bit 6 to Bit 0 of T0_T4_APLL_BW_CNFG (address 6AH) must be set to 1010010.
Bit 7 of APLL_CNFG (address 77H) must be set to 0.
These bits set the bandwidth for T0 APLL.
000: 10 kHz.
001: 20 kHz.
010: 50 kHz.
T0_APLL_BW[2:0] 011: 100 kHz.
100: 200 kHz.
101: 500 kHz.
110: 1 MHz.
111: 2 MHz.
These bits set the bandwidth for T4 APLL.
000: 10 kHz.
001: 20 kHz.
010: 50 kHz.
T4_APLL_BW[2:0] 011: 100 kHz.
100: 200 kHz.
101: 500 kHz.
110: 1 MHz.
111: 2 MHz.
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7.2.8
SYNCHRONOUS ETHERNET WAN PLL
OUTPUT CONFIGURATION REGISTERS
OUT1_FREQ_CNFG - Output Clock 1 Frequency Configuration
Address: 6BH
Type: Read / Write
Default Value: 00001011
7
6
5
4
3
2
1
0
OUT1_PATH_S
EL3
OUT1_PATH_S
EL2
OUT1_PATH_S
EL1
OUT1_PATH_S
EL0
OUT1_DIVIDER
3
OUT1_DIVIDER
2
OUT1_DIVIDER
1
OUT1_DIVIDER
0
Bit
7-4
3-0
Name
Description
These bits select an input to OUT1.
0000 ~ 0010: The output of T0 APLL. (default: 0000)
0011: T0 DPLL ETH path
0100: The output of T0 DPLL 77.76 MHz path.
0101: The output of T0 DPLL 12E1/24T1/E3/T3 path.
0110: The output of T0 DPLL 16E1/16T1 path.
OUT1_PATH_SEL[3:0] 0111: The output of T0 DPLL GSM/OBSAI/16E1/16T1 path.
1000 ~ 1010: The output of T4 APLL.
1011: T4 DPLL ETH path.
1100: The output of T4 DPLL 77.76 MHz path.
1101: The output of T4 DPLL 12E1/24T1/E3/T3 path.
1110: The output of T4 DPLL 16E1/16T1 path.
1111: The output of T4 DPLL GSM/GPS/16E1/16T1 path.
These bits select a division factor of the divider for OUT1.
The output frequency is determined by the division factor and the signal derived from T0/T4 DPLL or T0/T4 APLL output
OUT1_DIVIDER[3:0] (selected by the OUT1_PATH_SEL[3:0] bits (b7~4, 6BH)). If the signal is derived from one of the T0/T4 DPLL outputs,
please refer to Table 25 for the division factor selection. If the signal is derived from the T0/T4 APLL output, please refer to
Table 26~Table 27 for the division factor selection.
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OUT2_FREQ_CNFG - Output Clock 2 Frequency Configuration
Address: 6CH
Type: Read / Write
Default Value: 00000110
7
6
5
4
3
2
1
0
OUT2_PATH_S
EL3
OUT2_PATH_S
EL2
OUT2_PATH_S
EL1
OUT2_PATH_S
EL0
OUT2_DIVIDER
3
OUT2_DIVIDER
2
OUT2_DIVIDER
1
OUT2_DIVIDER
0
Bit
Name
7-4
OUT2_PATH_SEL[3:0]
3-0
OUT2_DIVIDER[3:0]
Description
These bits select an input to OUT2.
0000 ~ 0011: The output of T0 APLL. (default: 0000)
0100: The output of T0 DPLL 77.76 MHz path.
0101: The output of T0 DPLL 12E1/24T1/E3/T3 path.
0110: The output of T0 DPLL 16E1/16T1 path.
0111: The output of T0 DPLL GSM/OBSAI/16E1/16T1 path.
1000 ~ 1010: The output of T4 APLL.
1011: T4 DPLL ETH path.
1100: The output of T4 DPLL 77.76 MHz path.
1101: The output of T4 DPLL 12E1/24T1/E3/T3 path.
1110: The output of T4 DPLL 16E1/16T1 path.
1111: The output of T4 DPLL GSM/GPS/16E1/16T1 path.
These bits select a division factor of the divider for OUT2.
The output frequency is determined by the division factor and the signal derived from T0/T4 DPLL or T0/T4 APLL output
(selected by the OUT2_PATH_SEL[3:0] bits (b7~4, 6CH)). If the signal is derived from one of the T0/T4 DPLL outputs,
please refer to Table 25 for the division factor selection. If the signal is derived from the T0/T4 APLL output, please refer
to Table 26~Table 27 for the division factor selection.
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OUT3_FREQ_CNFG - Output Clock 3 Frequency Configuration
Address: 6DH
Type: Read / Write
Default Value: 00001000
7
6
5
4
3
2
1
0
OUT3_PATH_S
EL3
OUT3_PATH_S
EL2
OUT3_PATH_S
EL1
OUT3_PATH_S
EL0
OUT3_DIVIDER
3
OUT3_DIVIDER
2
OUT3_DIVIDER
1
OUT3_DIVIDER
0
Bit
7-4
3-0
Name
Description
These bits select an input to OUT3.
0000 ~ 0011: The output of T0 APLL. (default: 0000)
0100: The output of T0 DPLL 77.76 MHz path.
0101: The output of T0 DPLL 12E1/24T1/E3/T3 path.
0110: The output of T0 DPLL 16E1/16T1 path.
0111: The output of T0 DPLL GSM/OBSAI/16E1/16T1 path.
OUT3_PATH_SEL[3:0]
1000 ~ 1010: The output of T4 APLL.
1011: T4 DPLL ETH path.
1100: The output of T4 DPLL 77.76 MHz path.
1101: The output of T4 DPLL 12E1/24T1/E3/T3 path.
1110: The output of T4 DPLL 16E1/16T1 path.
1111: The output of T4 DPLL GSM/GPS/16E1/16T1 path.
These bits select a division factor of the divider for OUT3.
The output frequency is determined by the division factor and the signal derived from T0/T4 DPLL or T0/T4 APLL output
OUT3_DIVIDER[3:0] (selected by the OUT3_PATH_SEL[3:0] bits (b7~4, 6DH)). If the signal is derived from one of the T0/T4 DPLL outputs,
please refer to Table 25 for the division factor selection. If the signal is derived from the T0/T4 APLL output, please refer to
Table 26~Table 27 for the division factor selection.
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OUT4_FREQ_CNFG - Output Clock 4 Frequency Configuration
Address: 6EH
Type: Read / Write
Default Value: 00000110
7
6
5
4
3
2
1
0
OUT4_PATH_S
EL3
OUT4_PATH_S
EL2
OUT4_PATH_S
EL1
OUT4_PATH_S
EL0
OUT4_DIVIDER
3
OUT4_DIVIDER
2
OUT4_DIVIDER
1
OUT4_DIVIDER
0
Bit
7-4
3-0
Name
Description
These bits select an input to OUT4.
0000 ~ 0011: The output of T0 APLL. (default: 0000)
0100: The output of T0 DPLL 77.76 MHz path.
0101: The output of T0 DPLL 12E1/24T1/E3/T3 path.
0110: The output of T0 DPLL 16E1/16T1 path.
0111: The output of T0 DPLL GSM/OBSAI/16E1/16T1 path.
OUT4_PATH_SEL[3:0]
1000 ~ 1010: The output of T4 APLL.
1011: T4 DPLL ETH path.
1100: The output of T4 DPLL 77.76 MHz path.
1101: The output of T4 DPLL 12E1/24T1/E3/T3 path.
1110: The output of T4 DPLL 16E1/16T1 path.
1111: The output of T4 DPLL GSM/GPS/16E1/16T1 path.
These bits select a division factor of the divider for OUT4.
The output frequency is determined by the division factor and the signal derived from T0/T4 DPLL or T0/T4 APLL output
OUT4_DIVIDER[3:0] (selected by the OUT4_PATH_SEL[3:0] bits (b7~4, 6EH)). If the signal is derived from one of the T0/T4 DPLL outputs,
please refer to Table 25 for the division factor selection. If the signal is derived from the T0/T4 APLL output, please refer to
Table 26~Table 27 for the division factor selection.
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OUT5_FREQ_CNFG - Output Clock 5 Frequency Configuration
Address: 6FH
Type: Read / Write
Default Value: 00000100
7
6
5
4
3
2
1
0
OUT5_PATH_S
EL3
OUT5_PATH_S
EL2
OUT5_PATH_S
EL1
OUT5_PATH_S
EL0
OUT5_DIVIDER
3
OUT5_DIVIDER
2
OUT5_DIVIDER
1
OUT5_DIVIDER
0
Bit
7-4
3-0
Name
Description
These bits select an input to OUT5.
0000 ~ 0011: The output of T0 APLL. (default: 0000)
0100: The output of T0 DPLL 77.76 MHz path.
0101: The output of T0 DPLL 12E1/24T1/E3/T3 path.
0110: The output of T0 DPLL 16E1/16T1 path.
0111: The output of T0 DPLL GSM/OBSAI/16E1/16T1 path.
OUT5_PATH_SEL[3:0]
1000 ~ 1010: The output of T4 APLL.
1011: T4 DPLL ETH path.
1100: The output of T4 DPLL 77.76 MHz path.
1101: The output of T4 DPLL 12E1/24T1/E3/T3 path.
1110: The output of T4 DPLL 16E1/16T1 path.
1111: The output of T4 DPLL GSM/GPS/16E1/16T1 path.
These bits select a division factor of the divider for OUT5.
The output frequency is determined by the division factor and the signal derived from T0/T4 DPLL or T0/T4 APLL output
OUT5_DIVIDER[3:0] (selected by the OUT5_PATH_SEL[3:0] bits (b7~4, 6FH)). If the signal is derived from one of the T0/T4 DPLL outputs,
please refer to Table 25 for the division factor selection. If the signal is derived from the T0/T4 APLL output, please refer to
Table 26~Table 27 for the division factor selection.
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OUT6_FREQ_CNFG - Output Clock 6 Frequency Configuration
Address:70H
Type: Read / Write
Default Value: 00000110
7
6
5
4
3
2
1
0
OUT6_PATH_S
EL3
OUT6_PATH_S
EL2
OUT6_PATH_S
EL1
OUT6_PATH_S
EL0
OUT6_DIVIDER
3
OUT6_DIVIDER
2
OUT6_DIVIDER
1
OUT6_DIVIDER
0
Bit
7-4
3-0
Name
Description
These bits select an input to OUT6.
0000 ~ 0011: The output of T0 APLL. (default: 0000)
0100: The output of T0 DPLL 77.76 MHz path.
0101: The output of T0 DPLL 12E1/24T1/E3/T3 path.
0110: The output of T0 DPLL 16E1/16T1 path.
0111: The output of T0 DPLL GSM/OBSAI/16E1/16T1 path.
OUT6_PATH_SEL[3:0]
1000 ~ 1010: The output of T4 APLL.
1011: T4 DPLL ETH path.
1100: The output of T4 DPLL 77.76 MHz path.
1101: The output of T4 DPLL 12E1/24T1/E3/T3 path.
1110: The output of T4 DPLL 16E1/16T1 path.
1111: The output of T4 DPLL GSM/GPS/16E1/16T1 path.
These bits select a division factor of the divider for OUT6.
The output frequency is determined by the division factor and the signal derived from T0/T4 DPLL or T0/T4 APLL output
OUT6_DIVIDER[3:0] (selected by the OUT6_PATH_SEL[3:0] bits (b7~4, 70H)). If the signal is derived from one of the T0/T4 DPLL outputs,
please refer to Table 25 for the division factor selection. If the signal is derived from the T0/T4 APLL output, please refer to
Table 26~Table 27 for the division factor selection.
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OUT7_FREQ_CNFG - Output Clock 7 Frequency Configuration
Address:71H
Type: Read / Write
Default Value: 00001000
7
6
5
4
3
2
1
0
OUT7_PATH_S
EL3
OUT7_PATH_S
EL2
OUT7_PATH_S
EL1
OUT7_PATH_S
EL0
OUT7_DIVIDER
3
OUT7_DIVIDER
2
OUT7_DIVIDER
1
OUT7_DIVIDER
0
Bit
7-4
3-0
Name
Description
These bits select an input to OUT7.
0000 ~ 0011: The output of T0 APLL. (default: 0000)
0100: The output of T0 DPLL 77.76 MHz path.
0101: The output of T0 DPLL 12E1/24T1/E3/T3 path.
0110: The output of T0 DPLL 16E1/16T1 path.
0111: The output of T0 DPLL GSM/OBSAI/16E1/16T1 path.
OUT7_PATH_SEL[3:0]
1000 ~ 1010: The output of T4 APLL.
1011: T4 DPLL ETH path.
1100: The output of T4 DPLL 77.76 MHz path.
1101: The output of T4 DPLL 12E1/24T1/E3/T3 path.
1110: The output of T4 DPLL 16E1/16T1 path.
1111: The output of T4 DPLL GSM/GPS/16E1/16T1 path.
These bits select a division factor of the divider for OUT7.
The output frequency is determined by the division factor and the signal derived from T0/T4 DPLL or T0/T4 APLL output
OUT7_DIVIDER[3:0] (selected by the OUT7_PATH_SEL[3:0] bits (b7~4, 71H)). If the signal is derived from one of the T0/T4 DPLL outputs,
please refer to Table 25 for the division factor selection. If the signal is derived from the T0/T4 APLL output, please refer to
Table 26~Table 27 for the division factor selection.
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OUT8_FREQ_CNFG - Output Clock 8 Frequency Configuration & Output Clock 6, 7 & 9 Invert Configuration
Address:72H
Type: Read / Write
Default Value: 01000000
7
6
5
4
3
2
1
0
OUT8_PATH_S
EL
OUT8_EN
T4_INPUT_FAI
L
AMI_OUT_DUT
Y
400HZ_SEL
OUT9_INV
OUT7_INV
OUT6_INV
Bit
7
6
Name
Description
These bits select an input to OUT8.
OUT8_PATH_SEL 0: The output of T4 DPLL 77.76 MHz path. (default)
1: The output of T0 DPLL 77.76 MHz path.
OUT8_EN
Refer to the description of the T4_INPUT_FAIL bit (b5, 72H).
This bit, together with the OUT8_EN bit (b6, 72H), determines whether a clock is enabled to be output on OUT8.
OUT8_EN T4_INPUT_FAIL
5
T4_INPUT_FAIL
0
1
4
3
2
1
0
don’t-care
0
1
Output on OUT8
Output is disabled (output low).
Output is enabled. (default)
Output is enabled when the T4 selected input clock does not fail.
Output is disabled (output low) when the T4 selected input clock fails.
This bit determines the duty cycle of the output on OUT8.
AMI_OUT_DUTY 0: 50:50. (default)
1: 5:8.
This bit determines the frequency of the output on OUT8.
400HZ_SEL
0: 64 kHz + 8 kHz. (default)
1: 64 kHz + 8 kHz + 0.4 kHz.
This bit determines whether the output on OUT9 is inverted.
OUT9_INV
0: Not inverted. (default)
1: Inverted.
This bit determines whether the output on OUT7 is inverted.
OUT7_INV
0: Not inverted. (default)
1: Inverted.
This bit determines whether the output on OUT6 is inverted.
OUT6_INV
0: Not inverted. (default)
1: Inverted.
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OUT9_FREQ_CNFG - Output Clock 9 Frequency Configuration & Output Clock 1 ~ 5 Invert Configuration
Address:73H
Type: Read / Write
Default Value: 01000000
7
6
5
4
3
2
1
0
OUT9_PATH_S
EL
OUT9_EN
T4_INPUT_FAI
L
OUT5_INV
OUT4_INV
OUT3_INV
OUT2_INV
OUT1_INV
Bit
7
6
5
Name
Description
These bits select an input to OUT9.
OUT9_PATH_SEL 0: The output of T4 DPLL 16E1/16T1 path. (default)
1: The output of T0 DPLL 16E1/16T1 path.
OUT9_EN
Refer to the description of the T4_INPUT_FAIL bit (b5, 73H).
This bit, together with the OUT9_EN bit (b6, 73H), determines whether clock is enabled to output on OUT9.
OUT9_EN
T4_INPUT_FAIL
Output on OUT9
0
don’t-care
0
Output is disabled (output low).
Output is enabled. (default)
Output is enabled when the T4 selected input clock does not fail.
Output is disabled (output low) when the T4 selected input clock fails.
(Whether the T4 selected input clock is switched or not, as long as the T4 selected
input clock does not change to be invalid, the T4 selected input clock does not fail).
T4_INPUT_FAIL
1
4
OUT5_INV
3
OUT4_INV
2
OUT3_INV
1
OUT2_INV
0
OUT1_INV
1
This bit determines whether the output on OUT5 is inverted.
0: Not inverted. (default)
1: Inverted.
This bit determines whether the output on OUT4 is inverted.
0: Not inverted. (default)
1: Inverted.
This bit determines whether the output on OUT3 is inverted.
0: Not inverted. (default)
1: Inverted.
This bit determines whether the output on OUT2 is inverted.
0: Not inverted. (default)
1: Inverted.
This bit determines whether the output on OUT1 is inverted.
0: Not inverted. (default)
1: Inverted.
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FR_MFR_SYNC_CNFG - Frame Sync & Multiframe Sync Output Configuration
Address:74H
Type: Read / Write
Default Value: 01100000
7
6
5
4
3
2
1
0
IN_2K_4K_8K_I
NV
8K_EN
2K_EN
2K_8K_PUL_P
OSITION
8K_INV
8K_PUL
2K_INV
2K_PUL
Bit
7
6
5
4
3
2
1
0
Name
Description
This bit determines whether the input clock is inverted before locked by the T0/T4 DPLL when the input clock is 2 kHz, 4
kHz or 8 kHz.
IN_2K_4K_8K_INV
0: Not inverted. (default)
1: Inverted.
This bit determines whether an 8 kHz signal is enabled to be output on FRSYNC_8K.
8K_EN
0: Disabled. FRSYNC_8K outputs low.
1: Enabled. (default)
This bit determines whether a 2 kHz signal is enabled to be output on MFRSYNC_2K.
2K_EN
0: Disabled. MFRSYNC_2K outputs low.
1: Enabled. (default)
This bit is valid only when FRSYNC_8K and/or MFRSYNC_2K output pulse; i.e., when one of the 8K_PUL bit (b2, 74H)
and the 2K_PUL bit (b0, 74H) is ‘1’ or when the 8K_PUL bit (b2, 74H) and the 2K_PUL bit (b0, 74H) are both ‘1’. It deter2K_8K_PUL_POSITION mines the pulse position referring to the standard 50:50 duty cycle.
0: Pulsed on the falling edge of the standard 50:50 duty cycle position. (default)
1: Pulsed on the rising edge of the standard 50:50 duty cycle position.
This bit determines whether the output on FRSYNC_8K is inverted.
8K_INV
0: Not inverted. (default)
1: Inverted.
This bit determines whether the output on FRSYNC_8K is 50:50 duty cycle or pulsed.
8K_PUL
0: 50:50 duty cycle. (default)
1: Pulsed. The pulse width is defined by the period of the output on OUT3.
This bit determines whether the output on MFRSYNC_2K is inverted.
2K_INV
0: Not inverted. (default)
1: Inverted.
This bit determines whether the output on MFRSYNC_2K is 50:50 duty cycle or pulsed.
2K_PUL
0: 50:50 duty cycle. (default)
1: Pulsed. The pulse width is defined by the period of the output on OUT3.
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APLL Configuration
Address: 77H
Type: Read / Write
Default Value: 1xxxxxxx
7
6
5
4
3
2
1
0
APLL
-
-
-
-
-
-
-
Bit
Name
7
APLL Settings
6-0
-
Description
For best jitter performance, the following bits in the MS_SL_CTRL_CNFG, T0_T4_APLL_BW_CNFG and APLL_CNFG registers must be set.
Bit 7 to Bit 3 of MS_SL_CTRL_CNFG register (address 13H) must be set to 01010.
Bit 6 to Bit 0 of T0_T4_APLL_BW_CNFG (address 6AH) must be set to 1010010.
Bit 7 of APLL_CNFG (address 77H) must be set to 0..
Reserved.
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7.2.9
SYNCHRONOUS ETHERNET WAN PLL
PHASE TRANSIENT MONITOR & PHASE OFFSET CONTROL REGISTERS
PHASE_MON_CNFG - Phase Transient Monitor Configuration
Address:78H
Type: Read / Write
Default Value: 0X000110
7
6
5
4
3
2
1
0
IN_NOISE_WIN
DOW
-
-
-
-
-
-
-
Bit
Name
7
IN_NOISE_WINDOW
6-0
-
Description
This bit determines whether the input clock whose edge respect to the reference clock is outside ±5% is enabled to be
selected for T0/T4 DPLL.
0: Disabled. (default)
1: Enabled.
Reserved.
PHASE_OFFSET[7:0]_CNFG - Phase Offset Configuration 1
Address:7AH
Type: Read / Write
Default Value: 00000000
7
6
5
4
3
2
1
0
PH_OFFSET7
PH_OFFSET6
PH_OFFSET5
PH_OFFSET4
PH_OFFSET3
PH_OFFSET2
PH_OFFSET1
PH_OFFSET0
Bit
Name
7-0
Description
PH_OFFSET[7:0] Refer to the description of the PH_OFFSET[9:8] bits (b1~0, 7BH).
PHASE_OFFSET[9:8]_CNFG - Phase Offset Configuration 2
Address:7BH
Type: Read / Write
Default Value: 0XXXXX00
7
6
5
4
3
2
1
0
PH_OFFSET_E
N
-
-
-
-
-
PH_OFFSET9
PH_OFFSET8
Bit
7
6-2
1-0
Name
Description
This bit determines whether the input-to-output phase offset is enabled.
If the device is configured as the Master, the input-to-output phase offset:
PH_OFFSET_EN 0: Disabled. (default)
1: Enabled.
If the device is configured as the Slave, the input-to-output phase offset is always enabled.
Reserved.
These bits represent a 2’s complement signed integer.The input-to-output phase offset adjustment in ns is equal to this regisPH_OFFSET[9:8]
ter value is multiplied by 0.61.
154
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7.2.10
SYNCHRONOUS ETHERNET WAN PLL
SYNCHRONIZATION CONFIGURATION REGISTERS
SYNC_MONITOR_CNFG - Sync Monitor Configuration
Address:7CH
Type: Read / Write
Default Value: X0101011
7
6
5
4
3
2
1
0
-
SYNC_MON_LIMT2
SYNC_MON_LIMT1
SYNC_MON_LIMT0
-
-
-
-
Bit
Name
7
-
Description
Reserved.
These bits set the limit for the external sync alarm.
000: ±1 UI.
001: ±2 UI.
010: ±3 UI. (default)
SYNC_MON_LIMT[2:0] 011: ±4 UI.
100: ±5 UI.
101: ±6 UI.
110: ±7 UI.
111: ±8 UI.
These bits must be set to ‘1011’.
6-4
3-0
SYNC_PHASE_CNFG - Sync Phase Configuration
Address:7DH
Type: Read / Write
Default Value: 00XXXX00
7
6
5
4
3
2
1
0
-
-
-
-
-
-
SYNC_PH11
SYNC_PH10
Bit
Name
Description
7-2
-
1-0
SYNC_PH1[1:0]
Reserved.
These bits set the sampling of EX_SYNC1 when EX_SYNC1 is enabled to synchronize the frame sync output signal. Nominally, the falling edge of EX_SYNC1 is aligned with the rising edge of the T0 selected input clock.
00: On target. (default)
01: 0.5 UI early.
10: 1 UI late.
11: 0.5 UI late.
155
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IDT82V3390 DATASHEET
8
SYNCHRONOUS ETHERNET WAN PLL
THERMAL MANAGEMENT
The junction temperature Tj can be calculated as follows:
Tj = TA + P X θJA = 85°C + 1.2W X 18.9°C/W = 107.7°C
The device operates over the industry temperature range -40°C ~
+85°C. To ensure the functionality and reliability of the device, the maximum junction temperature Tjmax should not exceed 125°C. In some
applications, the device will consume more power and a thermal solution
should be provided to ensure the junction temperature Tj does not
exceed the Tjmax.
8.1
The junction temperature of 107.7°C is below the maximum junction
temperature of 125°C so no extra heat enhancement is required.
In some operation environments, the calculated junction temperature
might exceed the maximum junction temperature of 125°C and an external thermal solution such as a heatsink is required.
8.3
JUNCTION TEMPERATURE
A heatsink is expanding the surface area of the device to which it is
attached. θJA is now a combination of device case and heat-sink thermal
resistance, as the heat flowing from the die junction to ambient goes
through the package and the heatsink. θJA can be calculated as follows:
Equation 2: θJA = θJC + θCH+ θHA
Junction temperature Tj is the temperature of package typically at the
geographical center of the chip where the device's electrical circuits are.
It can be calculated as follows:
Equation 1: Tj = TA + P X θJA
Where:
θJA = Junction-to-Ambient Thermal Resistance of the Package
Where:
θJC = Junction-to-Case Thermal Resistance
θCH = Case-to-Heatsink Thermal Resistance
θHA = Heatsink-to-Ambient Thermal Resistance
Tj = Junction Temperature
TA = Ambient Temperature
P = Device Power Consumption
θCH+ θHA determines which heatsink and heatsink attachment can
In order to calculate junction temperature, an appropriate θJA must
be used. The θJA is shown in Table 48:
be selected to ensure the junction temperature does not exceed the
maximum junction temperature. According to Equation 1 and 2,
Power consumption is the core power excluding the power dissipated
in the loads. Table 47 provides power consumption in special environments.
θCH+ θHA can be calculated as follows:
Equation 3: θCH+ θHA = (Tj - TA) / P - θJC
Assume:
Table 47: Power Consumption and Maximum Junction Temperature
Package
Power
Consumption (W)
Operating
Voltage
(V)
1.2
3.465
TQFP/EQG100
8.2
Tj = 125°C (Tjmax)
Maximum
TA (°C)
Junction
Temperature (°C)
85
HEATSINK EVALUATION
TA = 85°C
P = 1.2W
θJC = 16.1°C/W (TQFP/EQG100)
125
θCH+ θHA can be calculated as follows:
EXAMPLE OF JUNCTION TEMPERATURE
CALCULATION
θCH+ θHA = (125°C - 85°C ) / 1.2W - 16.1°C/W = 17.2°C/W
That is, if a heatsink and heatsink attachment whose θCH+ θHA is
below or equal to 17.2°C/W is used in such operation environment, the
junction temperature will not exceed the maximum junction temperature.
Assume:
TA = 85°C
θJA = 18.9°C/W (TQFP/EQG100 Soldered & when airfow rate is 0 m/
s)
P = 1.2W
Table 48: Thermal Data
Package
Pin Count
Thermal Pad
TQFP/EQG100
100
Yes/Exposed
TQFP/EQG100
100
Yes/Soldered*
*note: Simulated with 3 x 3 array of thermal vias.
Thermal Management
θJC (°C/W)
θJB (°C/W)
16.1
16.1
34.2
1.3
156
θJA (°C/W) Air Flow in m/s
0
1
2
3
4
5
35.8
18.9
31.1
14.6
29.5
13.5
28.6
12.9
27.9
12.6
27.4
12.4
July 14, 2011
IDT82V3390 DATASHEET
8.4
SYNCHRONOUS ETHERNET WAN PLL
TQFP EPAD THERMAL RELEASE PATH
by the solder mask, should be at least the same size/shape as the
exposed pad/slug area on the package to maximize the thermal/electrical performance. Sufficient clearance should be designed on the PCB
between the outer edges of the land pattern and the inner edges of pad
pattern for the leads to avoid any shorts.
In order to maximize both the removal of heat from the package and
the electrical performance, a land pattern must be incorporated on the
Printed Circuit Board (PCB) within the footprint of the package corresponding to the exposed metal pad or exposed heat slug on the package, as shown in Figure 31. The solderable area on the PCB, as defined
SOLDER
PIN
PIN
PAD
EXPOSED HEAT SLUG
GROUND
PLANE
SOLDER
LAND
PATTERN
THERMAL
VIA
SOLDER
PIN
PIN
PAD
(GROUND PAD)
Figure 31. Assembly for Expose Pad thermal Release Path (Side View)
nected to ground as possible. It is also recommended that the via
diameter should be 12 to 13mils (0.30 to 0.33mm) with 1 oz copper via
barrel plating. This is desirable to avoid any solder wicking inside the via
during the soldering process which may result in voids in solder between
the exposed pad/slug and the thermal land. Precautions should be taken
to eliminate any solder voids between the exposed heat slug and the
land pattern. Note: These recommendations are to be used as a guideline only. For further information, please refer to the Application Note on
the Surface Mount Assembly of Amkor’s Thermally/Electrically Enhance
Leadframe Base Package, Amkor Technology.
While the land pattern on the PCB provides a means of heat transfer
and electrical grounding from the package to the board through a solder
joint, thermal vias are necessary to effectively conduct from the surface
of the PCB to the ground plane(s). The land pattern must be connected
to ground through these vias. The vias act as ‘heat pipes’. The number
of vias (i.e. ‘heat pipes’) are application specific and dependent upon the
package power dissipation as well as electrical conductivity requirements. Thus, thermal and electrical analysis and/or testing are recommended to determine the minimum number needed. Maximum thermal
and electrical performance is achieved when an array of vias is incorporated in the land pattern. It is recommended to use as many vias con-
Thermal Management
157
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SYNCHRONOUS ETHERNET WAN PLL
9
ELECTRICAL SPECIFICATIONS
9.1
ABSOLUTE MAXIMUM RATING
Table 49: Absolute Maximum Rating
Symbol
Parameter
Min
Max
Unit
VDD
Supply Voltage VDD
-0.5
5.5
V
VIN
Input Voltage (non-supply pins)
5.5
V
VOUT
Output Voltage (non-supply pins)
5.5
V
TA
Ambient Operating Temperature Range
-40
+85
°C
TSTOR
Storage Temperature
-50
+150
°C
ESD Performance
CDM Classification - Class II (JESD22 - C101E)
HBM Classification - Class 2 (JESD22-A114)
9.2
RECOMMENDED OPERATION CONDITIONS
Table 50: Recommended Operation Conditions
Symbol
Parameter
Min
Typ
Max
VDD
Power Supply (DC voltage) VDD
3.135
3.3
3.465
V
TA
Ambient Temperature Range
-40
+85
°C
IDD
Supply Current
345
mA
PTOT
Total Power Dissipation
1.2
W
Electrical Specifications
158
Unit
Test Condition
Exclude the loading
current and power
July 14, 2011
IDT82V3390 DATASHEET
SYNCHRONOUS ETHERNET WAN PLL
9.3
I/O SPECIFICATIONS
9.3.1
AMI INPUT / OUTPUT PORT
9.3.1.1
Structure
Violation
Violation
Violation
8 kHz (125 µs)
8 kHz (125 µs)
8 kHz (125 µs)
Figure 32. 64 kHz + 8 kHz Signal Structure
Violation
Violation
Violation
8 kHz (125 µs)
8 kHz (125 µs)
Violation
8 kHz (125 µs)
8 kHz (125 µs)
0.4 kHz (2.5 ms)
Figure 33. 64 kHz + 8 kHz + 0.4 kHz Signal Structure
9.3.1.2
I/O Level
15.6 µs
15.6 µs
7.8 µs
7.8 µs
+ VDD
+ 1.0 VIH
2 Vp-p
0 VIM
470 nF
1V
IN1
0V
OUT8_POS
- 1.0 VIL
1V
Signal structure of 64 kHz / 8 kHz central
clock interface after suitable transformer
IN2
15.6 µs
470 pF
470 nF
7.8 µs
OUT8_NEG
Figure 34. 64 kHz + 8 kHz / 64 kHz + 8 kHz + 0.4 kHz Signal Input Level
+ VDD
0V
Figure 35. 64 kHz + 8 kHz / 64 kHz + 8 kHz + 0.4 kHz Signal Output Level
Electrical Specifications
159
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AMI input
Turns ratio
3:1
IN1 OUT8_POS
AMI output
470 nF
Rload
470 pF
GND
IN2 OUT8_NEG
AMI input
2 nF
470 nF
For a transformer with a turns ratio of 1:1, a 3:1 ratio potential divider Rload must be used
to achieve the required 1 V pk-pk voltage level for the positive and negative pulses.
Figure 36. AMI Input / Output Port Line Termination (Recommended)
Table 51: AMI Input / Output Port Electrical Characteristics
Parameter
Description
tPW
Input Pulse Width
tR/F
Input Pulse Rise/Fall Time
Min
Typ
Max
µS
7.8
VIH
Input Voltage High
2.13
VIM
Input Voltage Middle
1.5
VIL
Input Voltage Low
0
IOUT
Output Current Drive
VOH
Output Voltage High, Output Current = -4 mA
VOL
Output Voltage Low, Output Current = 4 mA
RTEST
Nominal Test Load Impedance
1.65
Unit
2
µS
VDD + 0.3
V
1.8
V
1.4
V
20
mA
0.4
V
2.4
V
Ω
110
VMARK
Peak ‘Mark’ Amplitude after Transformer
0.9
1
1.1
V
VSPACE
Peak “Space” Amplitude after Transformer
-0.1
0
0.1
V
Electrical Specifications
160
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IDT82V3390 DATASHEET
9.3.1.3
SYNCHRONOUS ETHERNET WAN PLL
Over-Voltage Protection
The device may require over-voltage protection on AMI input ports
according to ITU Recommendation K.41.
9.3.2
CMOS INPUT / OUTPUT PORT
Table 52: CMOS Input Port Electrical Characteristics
Parameter
Description
Min
VIH
Input Voltage High
2
VIL
Input Voltage Low
IIN
Input Current
VIN
Input Voltage
Typ
Max
Unit
Test Condition
V
-0.5
0.8
V
±10
µA
5.5
V
Max
Unit
Table 53: CMOS Input Port with Internal Pull-Up Resistor Electrical Characteristics
Parameter
Description
Min
VIH
Input Voltage High
2
VIL
Input Voltage Low
PU
Pull-Up Resistor
IIN
Input Current
VIN
Input Voltage
Typ
Test Condition
V
0.8
V
KΩ
44
-0.5
±150
µA
5.5
V
Table 54: CMOS Input Port with Internal Pull-Down Resistor Electrical Characteristics
Parameter
Description
Min
VIH
Input Voltage High
2
VIL
Input Voltage Low
PD
Pull-Down Resistor
IIN
Input Current
VIN
Input Voltage
Typ
Max
Unit
Test Condition
V
0.8
-0.5
V
KΩ
60
±150
µA
5.5
V
Table 55: CMOS Output Port Electrical Characteristics
Application Pin
Parameter
Description
Min
VOH
Output Voltage High
2.4
Max
Unit
Test Condition
VDD
V
IOH = -8 mA
VOL
Output Voltage Low
0.4
V
IOL = 8 mA
tR
Rise time
4
ns
15 pF
tF
Fall time
4
ns
15 pF
VOH
Output Voltage High
VDD
V
IOH = -4 mA
VOL
Output Voltage Low
0.4
V
IOL= 4 mA
tR
Rise Time
15
ns
50 pF
tF
Fall Time
15
ns
50 pF
Output Clock
Other Output
Electrical Specifications
2.4
161
Typ
July 14, 2011
IDT82V3390 DATASHEET
SYNCHRONOUS ETHERNET WAN PLL
9.3.3
PECL / LVDS INPUT / OUTPUT PORT
9.3.3.1
PECL Input / Output Port
VDD (+ 3.3 V)
OUT6_POS
VDD (+ 3.3 V)
50 Ω (transmission line)
130 Ω
OUT6_NEG
IN5_POS
82 Ω
2 kHz
to
667 MHz
50 Ω (transmission line)
50 Ω (transmission line)
VDD (+ 3.3 V)
130 Ω
GND
VDD (+ 3.3 V)
50 Ω (transmission line)
130 Ω
VDD (+ 3.3 V)
OUT7_POS
IN5_NEG
OUT7_NEG
82 Ω
GND
VDD (+ 3.3 V)
50 Ω (transmission line)
130 Ω 82 Ω
2 kHz
to
667 MHz
82 Ω
130 Ω 82 Ω
50 Ω (transmission line)
50 Ω (transmission line)
VDD (+ 3.3 V)
130 Ω
GND
GND
GND
2 kHz
to
667 MHz
82 Ω
GND
Figure 38. Recommended PECL Output Port Line Termination
130 Ω
IN6_POS
82 Ω
2 kHz
to
667 MHz
GND
VDD (+ 3.3 V)
50 Ω (transmission line)
130 Ω
IN6 _NEG
82 Ω
GND
Figure 37. Recommended PECL Input Port Line Termination
Electrical Specifications
162
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Table 56: PECL Input / Output Port Electrical Characteristics
Parameter
Description
Min
Max
Unit
VDD - 2.5
VDD - 0.5
V
VDD - 2.4
VDD - 0.4
V
Input Differential Voltage
1
1.4
V
Input Low Voltage, Single-ended Input 2
VDD - 2.4
VDD - 1.5
V
VDD - 1.3
VDD - 0.5
V
IIH
Input High Voltage, Single-ended Input 2
Input High Current, Input Differential Voltage VID = 1.4 V
10
µA
IIL
Input Low Current, Input Differential Voltage VID = 1.4 V
-10
VOL
Output Voltage Low 3
1.15
1.75
V
VOH
Output Voltage High 3
1.95
2.55
V
VOD
Output Differential Voltage3
0.65
0.85
V
tRISE
Output Rise time (20% to 80%)
150
300
pS
tFALL
Output Fall time (20% to 80%)
150
300
pS
tSKEW
Output Differential Skew
100
pS
VIL
Input Low Voltage, Differential Inputs
1
VIH
Input High Voltage, Differential Inputs 1
VID
VIL_S
VIH_S
Typ
Test Condition
µA
Note:
1. Assuming a differential input voltage of at least 100 mV.
2. Unused differential input terminated to VDD-1.4 V.
3. With 50 Ω load on each pin to VDD-2 V, i.e. 82 to GND and 130 to VDD.
Electrical Specifications
163
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IDT82V3390 DATASHEET
9.3.3.2
SYNCHRONOUS ETHERNET WAN PLL
LVDS Input / Output Port
50 Ω (transmission line)
2 kHz
to
667 MHz
OUT6_POS
IN5_POS
50 Ω (transmission line)
100 Ω
50 Ω (transmission line)
50 Ω (transmission line)
2 kHz
to
667 MHz
IN5_NEG
OUT6_NEG
IN6_POS
OUT7_POS
50 Ω (transmission line)
50 Ω (transmission line)
100 Ω
100 Ω
50 Ω (transmission line)
2 kHz
to
667 MHz
100 Ω
IN6_NEG
OUT7_NEG
Figure 39. Recommended LVDS Input Port Line Termination
2 kHz
to
667 MHz
50 Ω (transmission line)
Figure 40. Recommended LVDS Output Port Line Termination
Table 57: LVDS Input / Output Port Electrical Characteristics
Parameter
Description
Min
Typ
Max
Unit
1200
Test Condition
VCM
Input Common-mode Voltage Range
200
2200
mV
VDIFF
Input Peak Differential Voltage
100
900
mV
VIDTH
Input Differential Threshold
-100
100
mV
RTERM
External Differential Termination Impedance
95
105
Ω
VOH
Output Voltage High
1150
1850
mV
RLOAD = 100 Ω ± 1%
VOL
Output Voltage Low
850
1350
mV
RLOAD = 100 Ω ± 1%
VOD
Differential Output Voltage
247
454
mV
RLOAD = 100 Ω ± 1%
VOS
Output Offset Voltage
1095
1405
mV
RLOAD = 100 Ω ± 1%
RO
Differential Output Impedance
80
120
Ω
VCM = 1.0 V or 1.4 V
100
350
∆RO
RO Mismatch between A and B
20
%
VCM = 1.0 V or 1.4 V
∆VOD
Change in VOD between Logic 0 and Logic 1
50
mV
RLOAD = 100 Ω ± 1%
50
mV
RLOAD = 100 Ω ± 1%
∆VOS
Change in VOS between Logic 0 and Logic 1
ISA, ISB
Output Current
24
mA
Driver shorted to GND
ISAB
Output Current
12
mA
Driver shorted together
tRISE
Output Rise time (20% to 80%)
300
pS
RLOAD = 100 Ω ± 1%
300
pS
RLOAD = 100 Ω ± 1%
100
pS
RLOAD = 100 Ω ± 1%
tFALL
Output Fall time (20% to 80%)
tSKEW
Output Differential Skew
Electrical Specifications
100
100
164
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IDT82V3390 DATASHEET
9.3.3.3
SYNCHRONOUS ETHERNET WAN PLL
Single-Ended Input for Differential Input
This is a recommended and tested interface circuit to drive differential input with a single-ended signal.
VCC = 3.3 V
VCC = 3.3 V
R4
100 (Option)
Ro ~ 7 Ω
R1
1K
Zo = 50 Ω
Rs
+
Vth
43
R5
100 (Option)
Driver_LVCMOS
C1
0.1 uF
R2
1K
Receive
Ro + Rs = Zo
Figure 41. Example of Single-Ended Signal to Drive Differential Input
Vth = VDD*[R2/(R1+R2)]
For the example in Figure 41, R1 = R2, so Vth = VDD/2 =1.65 V
The suggested single-ended signal input:
VIHmax = VDD
VILmin = 0 V
Vswing = 0.6 V ~ VDD
DC offset (Swing Center) = Vth/2 +/- Vswing*10%
Electrical Specifications
165
July 14, 2011
IDT82V3390 DATASHEET
9.4
SYNCHRONOUS ETHERNET WAN PLL
JITTER PERFORMANCE
Table 58: Output Clock Jitter Generation - External T0 APLL Loop Filter
(jitter measured on one differential output (OUT6 or OUT7) with all other outputs disabled)
Test Definition 1
25 MHz without T0 APLL
125 MHz with T0 APLL
156.25 MHz with T0 APLL
N x 2.048 MHz without APLL
N x 2.048 MHz with T0 APLL
N x 1.544 MHz without APLL
N x 1.544 MHz with T0 APLL
44.736 MHz without APLL
44.736 MHz with T0 APLL
34.368 MHz without APLL
34.368 MHz with T0 APLL
625 MHz with T0 APLL
Electrical Specifications
Output
Frequency
RMS
Typ (pS)
RMS
Max (pS)
25 MHz
125 MHz
156.25 MHz
71
16
17
44
42
44
42
47
40
44
41
0.3
80
20
21
200
200
200
200
100
100
100
100
1
44.736 MHz
44.736 MHz
34.368 MHz
34.368 MHz
625 MHz
166
Note
Test Filter
12 kHz - 5 MHz
12 kHz - 20 MHz
12 kHz - 20 MHz
20 Hz - 100 kHz
20 Hz - 100 kHz
10 Hz - 40 kHz
10 Hz - 40 kHz
100 Hz - 800 kHz
100 Hz - 800 kHz
10 Hz - 400 kHz
10 Hz - 400 kHz
1.875 MHz - 20 MHz
July 14, 2011
IDT82V3390 DATASHEET
SYNCHRONOUS ETHERNET WAN PLL
Table 58: Output Clock Jitter Generation - External T0 APLL Loop Filter
(jitter measured on one differential output (OUT6 or OUT7) with all other outputs disabled)
Test Definition 1
Output
Frequency
19.44 MHz
OC-3 and STM-1
(Chip T0 DPLL + T0 APLL) 19.44 MHz,
77.76 MHz, 155.52 MHz output
77.76 MHz
155.52 MHz
Electrical Specifications
RMS
Typ (pS)
RMS
Max (pS)
2
3.5
3
5.6
1
2.2
2
3.5
3
5.6
1
2.1
2
3.2
3
5.1
1
2
167
Note
GR-253-CORE and ITU-T G.813 Option 2
limit 0.1 UI p-p
(1 UI-6430 ps)
ITU-T G.813 Option 1
limit 0.5 UI p-p
(1 UI-6430 ps)
ITU-T G.813 Option 1
limit 0.1 UI p-p
(1 UI-6430 ps)
GR-253-CORE and ITU-T G.813 Option 2
limit 0.1 UI p-p
(1 UI-6430 ps)
ITU-T G.813 Option 1
limit 0.5 UI p-p
(1 UI-6430 ps)
ITU-T G.813 Option 1
limit 0.1 UI p-p
(1 UI-6430 ps)
GR-253-CORE and ITU-T G.813 Option 2
limit 0.1 UI p-p
(1 UI-6430 ps)
ITU-T G.813 Option 1
limit 0.5 UI p-p
(1 UI-6430 ps)
ITU-T G.813 Option 1
limit 0.1 UI p-p
(1 UI-6430 ps)
Test Filter
12 kHz - 1.3 MHz
500 Hz to 1.3 MHz
65 kHz to 1.3 MHz
12 kHz - 1.3 MHz
500 Hz to 1.3 MHz
65 kHz to 1.3 MHz
12 kHz - 1.3 MHz
500 Hz to 1.3 MHz
65 kHz to 1.3 MHz
July 14, 2011
IDT82V3390 DATASHEET
SYNCHRONOUS ETHERNET WAN PLL
Table 58: Output Clock Jitter Generation - External T0 APLL Loop Filter
(jitter measured on one differential output (OUT6 or OUT7) with all other outputs disabled)
Test Definition 1
Output
Frequency
77.76 MHz
OC-12 and STM-4
(Chip T0 DPLL + T0 APLL) 77.76 MHz,
155.52 MHz, 622.08 MHz output
155.52 MHz
622.08 MHz
155.52 MHz
OC-48 and STM-16
(Chip T0 DPLL + T0 APLL) 155.52 MHz,
622.08 MHz output
622.08 MHz
RMS
Typ (pS)
RMS
Max (pS)
2
3.5
3
5
0.8
1.3
2
3.2
3
4.7
0.8
1.3
2
3.4
3
4.9
0.8
1.5
2
3.2
2
3.8
0.4
0.7
2
3.5
2
4.2
0.3
0.6
Note
GR-253-CORE and ITU-T G.813 Option 2
limit 0.1 UI p-p
(1 UI-1608 ps)
ITU-T G.813 Option 1
limit 0.5 UI p-p
(1 UI-1608 ps)
ITU-T G.813 Option 1
limit 0.1 UI p-p
(1 UI-1608 ps)
GR-253-CORE and ITU-T G.813 Option 2
limit 0.1 UI p-p
(1 UI-1608 ps)
ITU-T G.813 Option 1
limit 0.5 UI p-p
(1 UI-1608 ps)
ITU-T G.813 Option 1
limit 0.1 UI p-p
(1 UI-1608 ps)
GR-253-CORE and ITU-T G.813 Option 2
limit 0.1 UI p-p
(1 UI-1608 ps)
ITU-T G.813 Option 1
limit 0.5 UI p-p
(1 UI-1608 ps)
ITU-T G.813 Option 1
limit 0.1 UI p-p
(1 UI-1608 ps)
GR-253-CORE and ITU-T G.813 Option 2
limit 0.1 UI p-p
(1 UI-401.878 ps)
ITU-T G.813 Option 1
limit 0.5 UI p-p
(1 UI-401.878 ps)
ITU-T G.813 Option 1
limit 0.1 UI p-p
(1 UI-401.878 ps)
GR-253-CORE and ITU-T G.813 Option 2
limit 0.1 UI p-p
(1 UI-401.878 ps)
ITU-T G.813 Option 1
limit 0.5 UI p-p
(1 UI-401.878 ps)
ITU-T G.813 Option 1
limit 0.1 UI p-p
(1 UI-401.878 ps)
Test Filter
12 kHz - 5 MHz
1000 Hz to 5 MHz
250 kHz to 5 MHz
12 kHz - 5 MHz
1000 Hz to 5 MHz
250 kHz to 5 MHz
12 kHz - 5 MHz
1000 Hz to 5 MHz
250 kHz to 5 MHz
12 kHz - 20 MHz
5000 Hz to 20 MHz
1 MHz to 20 MHz
12 kHz - 20 MHz
5000 Hz to 20 MHz
1 MHz to 20 MHz
Note:
1. Rakon TCXO E3198 is used.
2. Lock to 19.44MHz at IN3.
Electrical Specifications
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Table 59: Output Clock Jitter Generation - External T0 APLL Loop Filter
(jitter measured on one CMOS output (OUT1 - OUT5) with all other outputs disabled)
Test Definition 1
25 MHz without T0 APLL
125 MHz with T4 APLL
156.25 MHz with T4 APLL
N x 2.048 MHz without APLL
N x 2.048 MHz with T0/T4 APLL
N x 1.544 MHz without APLL
N x 1.544 MHz with T0/T4 APLL
44.736 MHz without APLL
44.736 MHz with T0/T4 APLL
34.368 MHz without APLL
34.368 MHz with T0/T4 APLL
Output
Frequency
RMS
Typ (pS)
RMS
Max (pS)
25 MHz
125 MHz
156.25 MHz
68
17
17
42
43
44
43
49
43
46
43
120
21
22
200
200
200
200
100
100
100
100
2
3.1
3
4.7
1
2.1
2
2.9
3
4.7
1
2.1
2
3
3
4.9
1
2
44.736 MHz
44.736 MHz
34.368 MHz
34.368 MHz
19.44 MHz
OC-3 and STM-1
(Chip T0 DPLL + T0 APLL) 19.44 MHz,
77.76 MHz, 155.52 MHz output
77.76 MHz
155.52 MHz
Note
Test Filter
12 kHz - 5 MHz
12 kHz - 20 MHz
12 kHz - 20 MHz
20 Hz - 100 kHz
20 Hz - 100 kHz
10 Hz - 40 kHz
10 Hz - 40 kHz
100 Hz - 800 kHz
100 Hz - 800 kHz
10 Hz - 400 kHz
10 Hz - 400 kHz
GR-253-CORE and ITU-T G.813 Option 2
limit 0.1 UI p-p
(1 UI-6430 ps)
ITU-T G.813 Option 1
limit 0.5 UI p-p
(1 UI-6430 ps)
ITU-T G.813 Option 1
limit 0.1 UI p-p
(1 UI-6430 ps)
GR-253-CORE and ITU-T G.813 Option 2
limit 0.1 UI p-p
(1 UI-6430 ps)
ITU-T G.813 Option 1
limit 0.5 UI p-p
(1 UI-6430 ps)
ITU-T G.813 Option 1
limit 0.1 UI p-p
(1 UI-6430 ps)
GR-253-CORE and ITU-T G.813 Option 2
limit 0.1 UI p-p
(1 UI-6430 ps)
ITU-T G.813 Option 1
limit 0.5 UI p-p
(1 UI-6430 ps)
ITU-T G.813 Option 1
limit 0.1 UI p-p
(1 UI-6430 ps)
12 kHz - 1.3 MHz
500 Hz to 1.3 MHz
65 kHz to 1.3 MHz
12 kHz - 1.3 MHz
500 Hz to 1.3 MHz
65 kHz to 1.3 MHz
12 kHz - 1.3 MHz
500 Hz to 1.3 MHz
65 kHz to 1.3 MHz
Note:
1. Rakon TCXO E3198 is used.
2. Lock to 19.44MHz at IN3.
Electrical Specifications
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9.5
SYNCHRONOUS ETHERNET WAN PLL
OUTPUT WANDER GENERATION
GR-1244 TDEV Wander Generation Stratum 3
1.00000E-07
TDEV (secs.)
1.00000E-08
GR-1244 Figure 5-4 TDEV
TDEV (-40C)
1.00000E-09
TDEV (85C)
TDEV (25C)
1.00000E-10
1.00000E-11
1.00E-01
1.00E+00
1.00E+01
1.00E+02
1.00E+03
1.00E+04
Integration Time (secs.)
Figure 42. Output Wander Generation (TDEV)
GR-1244 MTIE Wander Generation Stratum 3
MTIE (secs.)
1.00E-06
GR-1244 Figure 5-5 MTIE
MTIE (-40C)
1.00E-07
MTIE (85C)
MTIE (25C)
1.00E-08
1.00E-01
1.00E+00
1.00E+01
1.00E+02
1.00E+03
1.00E+04
1.00E+05
Integration Time (secs.)
Figure 43. Output Wander Generation (MTIE)
Electrical Specifications
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9.6
SYNCHRONOUS ETHERNET WAN PLL
INPUT / OUTPUT CLOCK TIMING
The inputs and outputs are aligned ideally. But due to the circuit delays, there is delay between the inputs and outputs.
8 kHz Input Clock
t1
8 kHz Output Clock
6. 48 MHz Input Clock
t2
6. 48 MHz Output Clock
19. 44 MHz Input Clock
t3
19. 44 MHz Output Clock
25. 92 MHz Input Clock
t4
25. 92 MHz Output Clock
38. 88 MHz Input Clock
t5
38. 88 MHz Output Clock
Figure 44. Input / Output Clock Timing
Table 60: Input/Output Clock Timing 1
Symbol
Typical Delay 2 (ns)
Maximum Delay (ns)
Peak to Peak Delay Variation (ns)
t1
8
20
1
t2
5
18
1
t3
5
19
1
t4
6.5
23
1.5
t5
5
15
1
Note:
1. ‘Tested when IN3 is selected.
2. Test for typical value is done with 3.3V VDD, at 25°C.
Electrical Specifications
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9.7
SYNCHRONOUS ETHERNET WAN PLL
OUTPUT CLOCK TIMING
MFRSYNC_2K/
FRSYNC_8K
t1
NX156.25 (156.25MHz)
t2
NXT1 (1.544MHz)
t3
NXE1 (2.048MHz)
t4
E3 (34.368MHz)
t5
T3 (44.736MHz)
t6
6.48MHz
t7
19.44MHz
t8
25.92MHz
t9
38.88MHz
t 10
51.84MHz
t 11
77.76MHz
t 12
155.52MHz
t 13
311.04MHz
t 14
622.08MHz
Figure 45. Output Clock Timing
Electrical Specifications
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SYNCHRONOUS ETHERNET WAN PLL
Table 61: Output Clock Timing
Symbol
Typical Delay (ns)
Maximum Delay (ns)
Peak to Peak Delay Variation (ns)
t1
2
4
1
t2
-1
-2
2
t3
-1
-2
2
t4
-2
-4
2
t5
-2
-4
2
t6
-2.5
-5
2
t7
-2.5
-5
2
t8
-2
-4
2
t9
-2
-4
2
t10
-1.5
-3
2
t11
-1.5
-3
2
t12
1.5
3
2
t13
0.5
1
1
t14
-1
-2
1
Electrical Specifications
173
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Glossary
Datasheet
3G
---
Third Generation
ADSL
---
Asymmetric Digital Subscriber Line
APLL
---
Analog Phase Locked Loop
ATM
---
Asynchronous Transfer Mode
BITS
---
Building Integrated Timing Supply
CMOS
---
Complementary Metal-Oxide Semiconductor
DCO
---
Digital Controlled Oscillator
DPLL
---
Digital Phase Locked Loop
DSL
---
Digital Subscriber Line
DSLAM
---
Digital Subscriber Line Access MUX
DWDM
---
Dense Wavelength Division Multiplexing
EPROM
---
Erasable Programmable Read Only Memory
ETH
---
Synchronous Ethernet System
GPS
---
Global Positioning System
GSM
---
Global System for Mobile Communications
HS
---
Hitless Switching
IIR
---
Infinite Impulse Response
IP
---
Internet Protocol
ISDN
---
Integrated Services Digital Network
JTAG
---
Joint Test Action Group
LPF
---
Low Pass Filter
LVDS
---
Low Voltage Differential Signal
MTIE
---
Maximum Time Interval Error
MUX
---
Multiplexer
OBSAI
---
Open Base Station Architecture Initiative
OC-n
---
Optical Carried rate, n = 1, 3, 12, 48, 192, 768; 51 Mbit/s, 155 Mbit/s, 622 Mbit/s, 2.5 Gbit/s, 10 Gbit/s, 40 Gbit/s.
Glossary
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IDT82V3390 DATASHEET
SYNCHRONOUS ETHERNET WAN PLL
PDH
---
Plesiochronous Digital Hierarchy
PECL
---
Positive Emitter Coupled Logic
PFD
---
Phase & Frequency Detector
PLL
---
Phase Locked Loop
RMS
---
Root Mean Square
PRS
---
Primary Reference Source
SDH
---
Synchronous Digital Hierarchy
SEC
---
SDH / SONET Equipment Clock
SMC
---
SONET Minimum Clock
SONET
---
Synchronous Optical Network
SSU
---
Synchronization Supply Unit
STM
---
Synchronous Transfer Mode
TCM-ISDN
---
Time Compression Multiplexing Integrated Services Digital Network
TDEV
---
Time Deviation
UI
---
Unit Interval
WLL
---
Wireless Local Loop
Datasheet
175
July 14, 2011
Index
Datasheet
A
Fine Phase Loss ................................................................................ 28
AMI Violation ...................................................................................... 20
Frequency Hard Alarm ....................................................................... 30
Averaged Phase Error ........................................................................ 35
H
B
Hard Limit ........................................................................................... 28
Bandwidths and Damping Factors ..................................................... 35
Acquisition Bandwidth and Damping Factor ............................... 35
Locked Bandwidth and Damping Factor ..................................... 35
Starting Bandwidth and Damping Factor .................................... 35
Holdover Frequency Offset ................................................................ 36
C
Input Clock Frequency ....................................................................... 24
I
IIR ...................................................................................................... 36
Input Clock Selection ...................................................................26, 30
Automatic selection ..............................................................27, 30
External Fast selection .........................................................26, 30
Forced selection ...................................................................27, 30
Non-Revertive switching ............................................................ 31
Revertive switching .................................................................... 30
Calibration .......................................................................................... 19
Coarse Phase Loss ............................................................................ 28
Crystal Oscillator ................................................................................ 19
Current Frequency Offset ................................................................... 35
D
DPLL Hard Alarm ............................................................................... 28
Internal Leaky Bucket Accumulator ................................................... 23
Bucket Size ................................................................................ 23
Decay Rate ................................................................................ 23
Lower Threshold ........................................................................ 23
Upper Threshold ........................................................................ 23
DPLL Hard Limit ................................................................................. 28
L
DPLL Operating Mode ................................................................. 35, 36
Free-Run mode ................................................................... 35, 36
Holdover mode .................................................................... 35, 36
Automatic Fast Averaged ................................................... 36
Automatic Instantaneous .................................................... 36
Automatic Slow Averaged .................................................. 36
Manual ................................................................................ 36
Locked mode ....................................................................... 35, 36
Temp-Holdover mode ......................................................... 35
Lost-Phase mode ....................................................................... 35
Pre-Locked mode ....................................................................... 35
Pre-Locked2 mode ..................................................................... 36
LOS ..............................................................................................23, 30
DCO ................................................................................................... 35
Division Factor .................................................................................... 21
LPF .................................................................................................... 35
M
Master / Slave Configuration .............................................................. 45
Master Clock ...................................................................................... 19
Microprocessor Interface ................................................................... 49
microprocessor interface
EPROM ...................................................................................... 51
Intel ............................................................................................ 55
Motorola ..................................................................................... 57
Multiplexed ................................................................................. 52
Serial ....................................................................................59, 61
DPLL Soft Alarm ................................................................................. 28
DPLL Soft Limit .................................................................................. 28
E
MON_SW_HS_CNFG - Frequency Monitor, Input Clock Selection & HS
Control ............................................................................................... 65
External Sync Alarm ........................................................................... 43
MON_SW_PBO_CNFG - Frequency Monitor, Input Clock Selection &
PBO Control ....................................................................................... 65
F
Fast Loss ............................................................................................ 28
Index
176
July 14, 2011
IDT82V3390 DATASHEET
SYNCHRONOUS ETHERNET WAN PLL
N
DivN Divider ............................................................................... 21
HF Divider .................................................................................. 21
Lock 8k Divider .......................................................................... 21
No-activity Alarm ......................................................................... 23, 30
P
R
PFD .................................................................................................... 35
Reference Clock ................................................................................ 24
Phase Lock Alarm ....................................................................... 29, 30
S
Phase Offset ....................................................................................... 38
State Machine ..............................................................................32, 34
Phase-compared ......................................................................... 28, 38
V
Phase-time ......................................................................................... 38
Validity ............................................................................................... 30
Pre-Divider ......................................................................................... 21
Datasheet
177
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IDT82V3390 DATASHEET
SYNCHRONOUS ETHERNET WAN PLL
PACKAGE DIMENSIONS
Figure 46. 100-Pin EQG Package Dimensions (a) (in Millimeters)
178
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IDT82V3390 DATASHEET
SYNCHRONOUS ETHERNET WAN PLL
Figure 47. 100-Pin EQG Package Dimensions (b) (in Millimeters)
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IDT82V3390 DATASHEET
SYNCHRONOUS ETHERNET WAN PLL
REVISIONS
DCN
DESCRIPTION
REV
DATE
APPROVED
LAND PATTERN DIMENSIONS
P
P1
P
P1
P2
X
e
D
E
N
N
1
UNIT (MM)
16.90
13.90
12.00
.30
.50
6.80
6.80
100
2
3
P
E
P1
X
P2
e
P2
T
TOLERANCES
UNLESS SPECIFIED
DECIMAL
XX±
XXX±
XXXX±
APPROVALS
DRAWN
PKP
TM
ANGULAR
±
www.IDT.com
DATE
TITLE
09/04/08
CHECKED
SIZE
6024 Silver Creek Valley Rd
San Jose, CA 95138
PHONE: (408) 284-8200
FAX: (408) 284-3572
EQ/EQG PACKAGE OUTLINE
14 X 14 X 1.4 mm TQFP
1.00/.10 FORM
DRAWING No.
C
REV
PSC-XXXX
DO NOT SCALE DRAWING
SHEET OF2
2
Figure 48. EQG100 Recommended Land Pattern with Exposed Pad (in Millimeters)
180
July 14, 2011
IDT82V3390 DATASHEET
SYNCHRONOUS ETHERNET WAN PLL
ORDERING INFORMATION
XXXXXXX
Device Type
XX
X
Process /
Temperature
Range
Blank
Industrial (- 40 °C to + 85 °C)
EQG
Green Thin Quad Flatpack ( TQFP, EQG100)
82V3390B
WAN PLL
REVISION HISTORY
April 15, 2011
Initial Revision
April 28, 2011
Cover Page, deleted the word “Preliminary”
July 14, 2011
pgs 9 - 11, 13 - 15, 17, 19 - 21, 24 - 28, 31, 35, 38 - 41, 45 - 46, 48, 62, 65, 70, 72 - 73, 76, 85 - 86, 88 - 97, 99, 115, 140 - 141,
154-156, 166, 169
181
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IDT82V3390 DATASHEET
SYNCHRONOUS ETHERNET WAN PLL
We’ve Got Your Timing Solution
6024 Silver Creek Valley Road
San Jose, California 95138
Sales
800-345-7015 (inside USA)
+408-284-8200 (outside USA)
Fax: 408-284-2775
www.IDT.com/go/contactIDT
Technical Support
[email protected]
+480-763-2056
DISCLAIMER Integrated Device Technology, Inc. (IDT) and its subsidiaries reserve the right to modify the products and/or specifications described herein at any time and at IDT’s sole discretion. All information in this document, including descriptions of product features and performance, is subject to change without notice. Performance specifications and the operating parameters of the described products are determined in the independent state
and are not guaranteed to perform the same way when installed in customer products. The information contained herein is provided without representation or warranty of any kind, whether express or implied, including, but not
limited to, the suitability of IDT’s products for any particular purpose, an implied warranty of merchantability, or non-infringement of the intellectual property rights of others. This document is presented only as a guide and
does not convey any license under intellectual property rights of IDT or any third parties.
IDT’s products are not intended for use in life support systems or similar devices where the failure or malfunction of an IDT product can be reasonably expected to significantly affect the health or safety of users. Anyone using
an IDT product in such a manner does so at their own risk, absent an express, written agreement by IDT.
Integrated Device Technology, IDT and the IDT logo are registered trademarks of IDT. Other trademarks and service marks used herein, including protected names, logos and designs, are the property of IDT or their respective
third party owners.
Copyright 2011. All rights reserved.
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