Single T1/E1/J1 Long Haul /
Short Haul Transceiver
82P2281
Version 12
September 30, 2019
6024 Silver Creek Valley Road, San Jose, CA 95138
Telephone: (800) 345-7015 • TWX: 910-338-2070 • FAX: (408) 284-2775
Printed in U.S.A.
© 2019 Integrated Device Technology, Inc.
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
FEATURES ............................................................................................................................................................................ 12
APPLICATIONS..................................................................................................................................................................... 12
BLOCK DIAGRAM ................................................................................................................................................................ 13
1 PIN ASSIGNMENT ........................................................................................................................................................... 14
2 PIN DESCRIPTION .......................................................................................................................................................... 15
3 FUNCTIONAL DESCRIPTION ......................................................................................................................................... 21
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8
T1 / E1 / J1 MODE SELECTION ................................................................................................................................................................... 23
RECEIVER IMPEDANCE MATCHING .......................................................................................................................................................... 24
3.2.1 Line Monitor .................................................................................................................................................................................... 24
ADAPTIVE EQUALIZER ............................................................................................................................................................................... 27
DATA SLICER ............................................................................................................................................................................................... 27
CLOCK AND DATA RECOVERY ................................................................................................................................................................. 27
RECEIVE JITTER ATTENUATOR ................................................................................................................................................................ 28
DECODER ..................................................................................................................................................................................................... 29
3.7.1 Line Code Rule ............................................................................................................................................................................... 29
3.7.1.1 T1 / J1 Mode .................................................................................................................................................................... 29
3.7.1.2 E1 Mode ........................................................................................................................................................................... 29
3.7.2 Decode Error Detection ................................................................................................................................................................. 29
3.7.2.1 T1 / J1 Mode .................................................................................................................................................................... 29
3.7.2.2 E1 Mode ........................................................................................................................................................................... 29
3.7.3 LOS Detection ................................................................................................................................................................................ 30
FRAME PROCESSOR .................................................................................................................................................................................. 33
3.8.1 T1/J1 Mode ...................................................................................................................................................................................... 33
3.8.1.1 Synchronization Searching ............................................................................................................................................... 33
3.8.1.1.1 Super Frame (SF) Format ............................................................................................................................. 33
3.8.1.1.2 Extended Super Frame (ESF) Format ........................................................................................................... 34
3.8.1.1.3 T1 Digital Multiplexer (DM) Format (T1 only) ................................................................................................ 35
3.8.1.1.4 Switch Line Carrier - 96 (SLC-96) Format (T1 only) ...................................................................................... 36
3.8.1.2 Error Event And Out Of Synchronization Detection .......................................................................................................... 37
3.8.1.2.1 Super Frame (SF) Format ............................................................................................................................. 37
3.8.1.2.2 Extended Super Frame (ESF) Format ........................................................................................................... 37
3.8.1.2.3 T1 Digital Multiplexer (DM) Format (T1 only) ................................................................................................ 37
3.8.1.2.4 Switch Line Carrier - 96 (SLC-96) Format (T1 only) ...................................................................................... 37
3.8.1.3 Overhead Extraction (T1 Mode SLC-96 Format Only) ..................................................................................................... 38
3.8.1.4 Interrupt Summary ............................................................................................................................................................ 38
3.8.2 E1 Mode .......................................................................................................................................................................................... 40
3.8.2.1 Synchronization Searching ............................................................................................................................................... 42
3.8.2.1.1 Basic Frame .................................................................................................................................................. 42
3.8.2.1.2 CRC Multi-Frame ........................................................................................................................................... 43
3.8.2.1.3 CAS Signaling Multi-Frame ........................................................................................................................... 44
3.8.2.2 Error Event And Out Of Synchronization Detection .......................................................................................................... 44
3.8.2.2.1 Out Of Basic Frame Synchronization ............................................................................................................ 45
3.8.2.2.2 Out Of CRC Multi-Frame Synchronization .................................................................................................... 45
3.8.2.2.3 Out Of CAS Signaling Multi-Frame Synchronization ..................................................................................... 45
3.8.2.3 Overhead Extraction ......................................................................................................................................................... 45
3.8.2.3.1 International Bit Extraction ............................................................................................................................. 45
3.8.2.3.2 Remote Alarm Indication Bit Extraction ......................................................................................................... 45
Table of Contents
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September 30, 2019
IDT82P2281
3.9
3.10
3.11
3.12
3.13
3.14
3.15
3.16
3.17
3.18
SINGLE T1/E1/J1 LONG HAUL / SHORT HAUL TRANSCEIVER
3.8.2.3.3 National Bit Extraction ................................................................................................................................... 45
3.8.2.3.4 National Bit Codeword Extraction .................................................................................................................. 45
3.8.2.3.5 Extra Bit Extraction ........................................................................................................................................ 45
3.8.2.3.6 Remote Signaling Multi-Frame Alarm Indication Bit Extraction ..................................................................... 45
3.8.2.3.7 Sa6 Code Detection Per ETS 300 233 .......................................................................................................... 45
3.8.2.4 V5.2 Link .......................................................................................................................................................................... 46
3.8.2.5 Interrupt Summary ............................................................................................................................................................ 46
PERFORMANCE MONITOR ......................................................................................................................................................................... 48
3.9.1 T1/J1 Mode ...................................................................................................................................................................................... 48
3.9.2 E1 Mode .......................................................................................................................................................................................... 50
ALARM DETECTOR ..................................................................................................................................................................................... 52
3.10.1 T1/J1 Mode ...................................................................................................................................................................................... 52
3.10.2 E1 Mode .......................................................................................................................................................................................... 54
HDLC RECEIVER .......................................................................................................................................................................................... 55
3.11.1 HDLC Channel Configuration ........................................................................................................................................................ 55
3.11.2 HDLC Mode ..................................................................................................................................................................................... 55
BIT-ORIENTED MESSAGE RECEIVER ....................................................................................................................................................... 58
INBAND LOOPBACK CODE DETECTOR (T1/J1 ONLY) ............................................................................................................................ 58
ELASTIC STORE BUFFER ........................................................................................................................................................................... 59
RECEIVE CAS/RBS BUFFER ...................................................................................................................................................................... 59
3.15.1 T1/J1 Mode ...................................................................................................................................................................................... 59
3.15.2 E1 Mode .......................................................................................................................................................................................... 60
RECEIVE PAYLOAD CONTROL .................................................................................................................................................................. 62
RECEIVE SYSTEM INTERFACE .................................................................................................................................................................. 64
3.17.1 T1/J1 Mode ...................................................................................................................................................................................... 64
3.17.1.1 Receive Clock Master Mode ............................................................................................................................................ 64
3.17.1.1.1 Receive Clock Master Full T1/J1 Mode ......................................................................................................... 64
3.17.1.1.2 Receive Clock Master Fractional T1/J1 Mode ............................................................................................... 64
3.17.1.2 Receive Clock Slave Mode .............................................................................................................................................. 65
3.17.1.3 Receive Multiplexed Mode ............................................................................................................................................... 66
3.17.1.4 Offset ................................................................................................................................................................................ 66
3.17.1.5 Output On RSD/MRSD & RSIG/MRSIG ........................................................................................................................... 69
3.17.2 E1 Mode .......................................................................................................................................................................................... 69
3.17.2.1 Receive Clock Master Mode ............................................................................................................................................ 69
3.17.2.1.1 Receive Clock Master Full E1 Mode ............................................................................................................. 69
3.17.2.1.2 Receive Clock Master Fractional E1 Mode ................................................................................................... 69
3.17.2.2 Receive Clock Slave Mode .............................................................................................................................................. 69
3.17.2.3 Receive Multiplexed Mode ............................................................................................................................................... 70
3.17.2.4 Offset ................................................................................................................................................................................ 70
3.17.2.5 Output On RSD/MRSD & RSIG/MRSIG ........................................................................................................................... 70
TRANSMIT SYSTEM INTERFACE ............................................................................................................................................................... 71
3.18.1 T1/J1 Mode ...................................................................................................................................................................................... 71
3.18.1.1 Transmit Clock Master Mode ............................................................................................................................................ 71
3.18.1.1.1 Transmit Clock Master Full T1/J1 Mode ........................................................................................................ 71
3.18.1.1.2 Transmit Clock Master Fractional T1/J1 Mode .............................................................................................. 71
3.18.1.2 Transmit Clock Slave Mode ............................................................................................................................................. 72
3.18.1.3 Transmit Multiplexed Mode .............................................................................................................................................. 73
3.18.1.4 Offset ................................................................................................................................................................................ 73
3.18.2 E1 Mode .......................................................................................................................................................................................... 76
3.18.2.1 Transmit Clock Master Mode ............................................................................................................................................ 76
3.18.2.1.1 Transmit Clock Master Full E1 Mode ............................................................................................................ 76
3.18.2.1.2 Transmit Clock Master Fractional E1 Mode .................................................................................................. 76
3.18.2.2 Transmit Clock Slave Mode ............................................................................................................................................. 76
3.18.2.3 Transmit Multiplexed Mode .............................................................................................................................................. 76
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IDT82P2281
SINGLE T1/E1/J1 LONG HAUL / SHORT HAUL TRANSCEIVER
3.18.2.4 Offset ................................................................................................................................................................................ 77
3.19 TRANSMIT PAYLOAD CONTROL ............................................................................................................................................................... 78
3.20 FRAME GENERATOR .................................................................................................................................................................................. 79
3.20.1 Generation ...................................................................................................................................................................................... 79
3.20.1.1 T1 / J1 Mode .................................................................................................................................................................... 79
3.20.1.1.1 Super Frame (SF) Format ............................................................................................................................. 79
3.20.1.1.2 Extended Super Frame (ESF) Format ........................................................................................................... 79
3.20.1.1.3 T1 Digital Multiplexer (DM) Format (T1 only) ................................................................................................ 79
3.20.1.1.4 Switch Line Carrier - 96 (SLC-96) Format (T1 only) ...................................................................................... 79
3.20.1.1.5 Interrupt Summary ......................................................................................................................................... 80
3.20.1.2 E1 Mode ........................................................................................................................................................................... 81
3.20.1.2.1 Interrupt Summary ......................................................................................................................................... 82
3.20.2 HDLC Transmitter .......................................................................................................................................................................... 84
3.20.2.1 HDLC Channel Configuration ........................................................................................................................................... 84
3.20.2.2 HDLC Mode ...................................................................................................................................................................... 84
3.20.2.2.1 HDLC Mode ................................................................................................................................................... 84
3.20.2.3 Interrupt Summary ............................................................................................................................................................ 84
3.20.2.4 Reset ................................................................................................................................................................................ 84
3.20.3 Automatic Performance Report Message (T1/J1 Only) .............................................................................................................. 86
3.20.4 Bit-Oriented Message Transmitter (T1/J1 Only) .......................................................................................................................... 87
3.20.5 Inband Loopback Code Generator (T1/J1 Only) .......................................................................................................................... 87
3.20.6 All ‘Zero’s & All ‘One’s ................................................................................................................................................................... 87
3.20.7 Change Of Frame Alignment ......................................................................................................................................................... 87
3.21 TRANSMIT BUFFER ..................................................................................................................................................................................... 88
3.22 ENCODER ..................................................................................................................................................................................................... 88
3.22.1 Line Code Rule ............................................................................................................................................................................... 88
3.22.1.1 T1/J1 Mode ...................................................................................................................................................................... 88
3.22.1.2 E1 Mode ........................................................................................................................................................................... 88
3.22.2 BPV Error Insertion ........................................................................................................................................................................ 88
3.22.3 All ‘One’s Insertion ........................................................................................................................................................................ 88
3.23 TRANSMIT JITTER ATTENUATOR ............................................................................................................................................................. 89
3.24 WAVEFORM SHAPER / LINE BUILD OUT .................................................................................................................................................. 90
3.24.1 Preset Waveform Template ........................................................................................................................................................... 90
3.24.1.1 T1/J1 Mode ...................................................................................................................................................................... 90
3.24.1.2 E1 Mode ........................................................................................................................................................................... 90
3.24.2 Line Build Out (LBO) (T1 Only) ..................................................................................................................................................... 91
3.24.3 User-Programmable Arbitrary Waveform .................................................................................................................................... 91
3.25 LINE DRIVER ................................................................................................................................................................................................ 98
3.26 TRANSMITTER IMPEDANCE MATCHING .................................................................................................................................................. 99
3.27 TESTING AND DIAGNOSTIC FACILITIES ................................................................................................................................................ 100
3.27.1 PRBS Generator / Detector ......................................................................................................................................................... 100
3.27.1.1 Pattern Generator ........................................................................................................................................................... 100
3.27.1.2 Pattern Detector ............................................................................................................................................................. 100
3.27.2 Loopback ...................................................................................................................................................................................... 101
3.27.2.1 System Loopback ........................................................................................................................................................... 101
3.27.2.1.1 System Remote Loopback .......................................................................................................................... 101
3.27.2.1.2 System Local Loopback .............................................................................................................................. 101
3.27.2.2 Payload Loopback .......................................................................................................................................................... 102
3.27.2.3 Local Digital Loopback 1 ................................................................................................................................................ 102
3.27.2.4 Remote Loopback .......................................................................................................................................................... 102
3.27.2.5 Local Digital Loopback 2 ................................................................................................................................................ 102
3.27.2.6 Analog Loopback ............................................................................................................................................................ 102
3.28 INTERRUPT SUMMARY ............................................................................................................................................................................. 103
4 OPERATION ................................................................................................................................................................... 104
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IDT82P2281
4.1
4.2
4.3
4.4
4.5
SINGLE T1/E1/J1 LONG HAUL / SHORT HAUL TRANSCEIVER
POWER-ON SEQUENCE ............................................................................................................................................................................ 104
RESET ......................................................................................................................................................................................................... 104
RECEIVE / TRANSMIT PATH POWER DOWN .......................................................................................................................................... 104
MICROPROCESSOR INTERFACE ............................................................................................................................................................ 105
4.4.1 SPI Mode ....................................................................................................................................................................................... 105
4.4.2 Parallel Microprocessor Interface .............................................................................................................................................. 106
INDIRECT REGISTER ACCESS SCHEME ................................................................................................................................................ 107
4.5.1 Indirect Register Read Access ................................................................................................................................................... 107
4.5.2 Indirect Register Write Access ................................................................................................................................................... 107
5 PROGRAMMING INFORMATION .................................................................................................................................. 108
5.1
5.2
REGISTER MAP .......................................................................................................................................................................................... 108
5.1.1 T1/J1 Mode .................................................................................................................................................................................... 108
5.1.1.1 Direct Register ................................................................................................................................................................ 108
5.1.1.2 Indirect Register ............................................................................................................................................................. 113
5.1.2 E1 Mode ........................................................................................................................................................................................ 114
5.1.2.1 Direct Register ................................................................................................................................................................ 114
5.1.2.2 Indirect Register ............................................................................................................................................................. 119
REGISTER DESCRIPTION ......................................................................................................................................................................... 121
5.2.1 T1/J1 Mode .................................................................................................................................................................................... 122
5.2.1.1 Direct Register ................................................................................................................................................................ 122
5.2.1.2 Indirect Register ............................................................................................................................................................. 220
5.2.2 E1 Mode ........................................................................................................................................................................................ 233
5.2.2.1 Direct Register ................................................................................................................................................................ 233
5.2.2.2 Indirect Register ............................................................................................................................................................. 332
6 IEEE STD 1149.1 JTAG TEST ACCESS PORT ............................................................................................................ 347
6.1
6.2
6.3
JTAG INSTRUCTIONS AND INSTRUCTION REGISTER (IR) ................................................................................................................... 348
JTAG DATA REGISTER ............................................................................................................................................................................. 349
6.2.1 Device Identification Register (IDR) ........................................................................................................................................... 349
6.2.2 Bypass Register (BYP) ................................................................................................................................................................ 349
6.2.3 Boundary Scan Register (BSR) ................................................................................................................................................... 349
TEST ACCESS PORT CONTROLLER ....................................................................................................................................................... 351
7 PHYSICAL AND ELECTRICAL SPECIFICATIONS ...................................................................................................... 354
7.1
7.2
ABSOLUTE MAXIMUM RATINGS ............................................................................................................................................................. 354
RECOMMENDED OPERATING CONDITIONS .......................................................................................................................................... 354
7.2.1 Recommended Operating Condition .......................................................................................................................................... 354
7.2.2 Operating Current Requirements ............................................................................................................................................... 354
7.3 D.C. CHARACTERISTICS .......................................................................................................................................................................... 355
7.4 DIGITAL I/O TIMING CHARACTERISTICS ................................................................................................................................................ 356
7.4.1 In Non-Multiplexed Mode ............................................................................................................................................................. 356
7.4.2 In Multiplexed Mode ..................................................................................................................................................................... 357
7.5 CLOCK FREQUENCY REQUIREMENT ..................................................................................................................................................... 357
7.6 T1/J1 LINE RECEIVER ELECTRICAL CHARACTERISTICS .................................................................................................................... 358
7.7 E1 LINE RECEIVER ELECTRICAL CHARACTERISTICS ......................................................................................................................... 359
7.8 T1/J1 LINE TRANSMITTER ELECTRICAL CHARACTERISTICS ............................................................................................................. 360
7.9 E1 LINE TRANSMITTER ELECTRICAL CHARACTERISTICS ................................................................................................................. 361
7.10 JITTER TOLERANCE ................................................................................................................................................................................. 362
7.10.1 T1/J1 Mode .................................................................................................................................................................................... 362
7.10.2 E1 Mode ........................................................................................................................................................................................ 363
7.11 JITTER TRANSFER .................................................................................................................................................................................... 364
7.11.1 T1/J1 Mode .................................................................................................................................................................................... 364
7.11.2 E1 Mode ........................................................................................................................................................................................ 365
7.12 MICROPROCESSOR TIMING SPECIFICATION ........................................................................................................................................ 366
7.12.1 Motorola Non-Multiplexed Mode ................................................................................................................................................. 366
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SINGLE T1/E1/J1 LONG HAUL / SHORT HAUL TRANSCEIVER
7.12.1.1 Read Cycle Specification ...............................................................................................................................................
7.12.1.2 Write Cycle Specification ................................................................................................................................................
7.12.2 Intel Non-Multiplexed Mode .........................................................................................................................................................
7.12.2.1 Read Cycle Specification ...............................................................................................................................................
7.12.2.2 Write Cycle Specification ................................................................................................................................................
7.12.3 SPI Mode .......................................................................................................................................................................................
366
367
368
368
369
370
ORDERING INFORMATION .......................................................................................................................................... 371
DOCUMENT HISTORY .................................................................................................................................................. 371
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List of Tables
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Operating Mode Selection ...........................................................................................................................................................................
Related Bit / Register In Chapter 3.1 ...........................................................................................................................................................
Impedance Matching Value For The Receiver .............................................................................................................................................
Related Bit / Register In Chapter 3.2 ...........................................................................................................................................................
Related Bit / Register In Chapter 3.3 & Chapter 3.4 ....................................................................................................................................
Criteria Of Speed Adjustment Start ..............................................................................................................................................................
Related Bit / Register In Chapter 3.6 ...........................................................................................................................................................
Excessive Zero Error Definition ...................................................................................................................................................................
LOS Condition In T1/J1 Mode ......................................................................................................................................................................
LOS Condition In E1 Mode ..........................................................................................................................................................................
Related Bit / Register In Chapter 3.7 ...........................................................................................................................................................
The Structure of SF .....................................................................................................................................................................................
The Structure of ESF ...................................................................................................................................................................................
The Structure of T1 DM ...............................................................................................................................................................................
The Structure of SLC-96 ..............................................................................................................................................................................
Interrupt Source In T1/J1 Frame Processor ................................................................................................................................................
Related Bit / Register In Chapter 3.8.1 ........................................................................................................................................................
The Structure Of TS0 In CRC Multi-Frame ..................................................................................................................................................
FAS/NFAS Bit/Pattern Error Criteria ............................................................................................................................................................
Interrupt Source In E1 Frame Processor .....................................................................................................................................................
Related Bit / Register In Chapter 3.8.2 ........................................................................................................................................................
Monitored Events In T1/J1 Mode .................................................................................................................................................................
Related Bit / Register In Chapter 3.9.1 ........................................................................................................................................................
Monitored Events In E1 Mode .....................................................................................................................................................................
Related Bit / Register In Chapter 3.9.2 ........................................................................................................................................................
RED Alarm, Yellow Alarm & Blue Alarm Criteria .........................................................................................................................................
Related Bit / Register In Chapter 3.10.1 ......................................................................................................................................................
Related Bit / Register In Chapter 3.10.2 ......................................................................................................................................................
Related Bit / Register In Chapter 3.11.1 ......................................................................................................................................................
Interrupt Summarize In HDLC Mode ...........................................................................................................................................................
Related Bit / Register In Chapter 3.11.2 ......................................................................................................................................................
Related Bit / Register In Chapter 3.12 .........................................................................................................................................................
Related Bit / Register In Chapter 3.13 .........................................................................................................................................................
Related Bit / Register In Chapter 3.14 .........................................................................................................................................................
Related Bit / Register In Chapter 3.15 .........................................................................................................................................................
A-Law Digital Milliwatt Pattern .....................................................................................................................................................................
µ-Law Digital Milliwatt Pattern .....................................................................................................................................................................
Related Bit / Register In Chapter 3.16 .........................................................................................................................................................
Operating Modes Selection In T1/J1 Receive Path .....................................................................................................................................
Operating Modes Selection In E1 Receive Path ..........................................................................................................................................
Related Bit / Register In Chapter 3.17 .........................................................................................................................................................
Operating Modes Selection In T1/J1 Transmit Path ....................................................................................................................................
Operating Modes Selection In E1 Transmit Path .........................................................................................................................................
Related Bit / Register In Chapter 3.18 .........................................................................................................................................................
Related Bit / Register In Chapter 3.19 .........................................................................................................................................................
Related Bit / Register In Chapter 3.20.1.1 ...................................................................................................................................................
E1 Frame Generation ..................................................................................................................................................................................
Control Over E Bits ......................................................................................................................................................................................
List of Tables
8
23
23
24
26
27
28
28
29
31
31
32
33
34
35
36
38
39
43
44
46
47
48
49
50
51
52
53
54
55
56
57
58
58
59
61
62
62
63
64
69
70
71
76
77
78
80
81
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IDT82P2281
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SINGLE T1/E1/J1 LONG HAUL / SHORT HAUL TRANSCEIVER
Interrupt Summary In E1 Mode .................................................................................................................................................................... 82
Related Bit / Register In Chapter 3.20.1.2 ................................................................................................................................................... 83
Related Bit / Register In Chapter 3.20.2.1 ................................................................................................................................................... 84
Related Bit / Register In Chapter 3.20.2.2 ~ Chapter 3.20.2.4 .................................................................................................................... 85
APRM Message Format .............................................................................................................................................................................. 86
APRM Interpretation .................................................................................................................................................................................... 86
Related Bit / Register In Chapter 3.20.3 ...................................................................................................................................................... 87
Related Bit / Register In Chapter 3.20.4 & Chapter 3.20.5 .......................................................................................................................... 87
Related Bit / Register In Chapter 3.20.6, Chapter 3.20.7 & Chapter 3.21 ................................................................................................... 88
Related Bit / Register In Chapter 3.22 ......................................................................................................................................................... 88
Related Bit / Register In Chapter 3.23 ......................................................................................................................................................... 89
PULS[3:0] Setting In T1/J1 Mode ................................................................................................................................................................ 90
LBO PULS[3:0] Setting In T1 Mode ............................................................................................................................................................. 91
Transmit Waveform Value For E1 75 Ohm .................................................................................................................................................. 92
Transmit Waveform Value For E1 120 Ohm ................................................................................................................................................ 92
Transmit Waveform Value For T1 0~133 ft ................................................................................................................................................. 93
Transmit Waveform Value For T1 133~266 ft ............................................................................................................................................. 93
Transmit Waveform Value For T1 266~399 ft ............................................................................................................................................. 94
Transmit Waveform Value For T1 399~533 ft ............................................................................................................................................. 94
Transmit Waveform Value For T1 533~655 ft ............................................................................................................................................. 95
Transmit Waveform Value For J1 0~655ft ................................................................................................................................................... 95
Transmit Waveform Value For DS1 0 dB LBO ............................................................................................................................................ 96
Transmit Waveform Value For DS1 -7.5 dB LBO ........................................................................................................................................ 96
Transmit Waveform Value For DS1 -15.0 dB LBO ...................................................................................................................................... 97
Transmit Waveform Value For DS1 -22.5 dB LBO ...................................................................................................................................... 97
Related Bit / Register In Chapter 3.24 ......................................................................................................................................................... 97
Impedance Matching Value For The Transmitter ........................................................................................................................................ 99
Related Bit / Register In Chapter 3.25 & Chapter 3.26 ................................................................................................................................ 99
Related Bit / Register In Chapter 3.27.1 .................................................................................................................................................... 100
Related Bit / Register In Chapter 3.27.2 .................................................................................................................................................... 102
Related Bit / Register In Chapter 3.28 ....................................................................................................................................................... 103
Parallel Microprocessor Interface .............................................................................................................................................................. 106
Related Bit / Register In Chapter 4 ............................................................................................................................................................ 107
IR Code ...................................................................................................................................................................................................... 348
IDR ............................................................................................................................................................................................................. 349
Boundary Scan (BS) Sequence ................................................................................................................................................................. 349
TAP Controller State Description ............................................................................................................................................................... 351
List of Tables
9
September 30, 2019
List of Figures
Figure 1. 80-Pin TQFP (Top View) .............................................................................................................................................................................. 14
Figure 2. Receive / Transmit Line Circuit .................................................................................................................................................................... 24
Figure 3. Receive Path Monitoring (Twisted Pair) ....................................................................................................................................................... 25
Figure 4. Transmit Path Monitoring (Twisted Pair) ...................................................................................................................................................... 25
Figure 5. Receive Path Monitoring (COAX) ................................................................................................................................................................ 26
Figure 6. Transmit Path Monitoring(COAX) ................................................................................................................................................................ 26
Figure 7. Jitter Attenuator ............................................................................................................................................................................................ 28
Figure 8. AMI Bipolar Violation Error ........................................................................................................................................................................... 30
Figure 9. B8ZS Excessive Zero Error ......................................................................................................................................................................... 30
Figure 10. HDB3 Code Violation & Excessive Zero Error ............................................................................................................................................ 30
Figure 11. E1 Frame Searching Process ..................................................................................................................................................................... 41
Figure 12. Basic Frame Searching Process ................................................................................................................................................................ 42
Figure 13. TS16 Structure Of CAS Signaling Multi-Frame .......................................................................................................................................... 44
Figure 14. Standard HDLC Packet .............................................................................................................................................................................. 55
Figure 15. Overhead Indication In The FIFO ............................................................................................................................................................... 56
Figure 16. Signaling Output In T1/J1 Mode ................................................................................................................................................................. 60
Figure 17. Signaling Output In E1 Mode ...................................................................................................................................................................... 60
Figure 18. T1/J1 To E1 Format Mapping - G.802 Mode .............................................................................................................................................. 65
Figure 19. T1/J1 To E1 Format Mapping - One Filler Every Fourth Channel Mode .................................................................................................... 65
Figure 20. T1/J1 To E1 Format Mapping - Continuous Channels Mode ..................................................................................................................... 66
Figure 21. No Offset When FE = 1 & DE = 1 In Receive Path .................................................................................................................................... 67
Figure 22. No Offset When FE = 0 & DE = 0 In Receive Path .................................................................................................................................... 67
Figure 23. No Offset When FE = 0 & DE = 1 In Receive Path .................................................................................................................................... 68
Figure 24. No Offset When FE = 1 & DE = 0 In Receive Path .................................................................................................................................... 68
Figure 25. E1 To T1/J1 Format Mapping - G.802 Mode .............................................................................................................................................. 72
Figure 26. E1 To T1/J1 Format Mapping - One Filler Every Fourth Channel Mode .................................................................................................... 72
Figure 27. E1 To T1/J1 Format Mapping - Continuous Channels Mode ..................................................................................................................... 73
Figure 28. No Offset When FE = 1 & DE = 1 In Transmit Path ................................................................................................................................... 74
Figure 29. No Offset When FE = 0 & DE = 0 In Transmit Path ................................................................................................................................... 74
Figure 30. No Offset When FE = 0 & DE = 1 In Transmit Path ................................................................................................................................... 75
Figure 31. No Offset When FE = 1 & DE = 0 In Transmit Path ................................................................................................................................... 75
Figure 32. DSX-1 Waveform Template ........................................................................................................................................................................ 90
Figure 33. T1/J1 Pulse Template Measurement Circuit .............................................................................................................................................. 90
Figure 34. E1 Waveform Template .............................................................................................................................................................................. 90
Figure 35. E1 Pulse Template Measurement Circuit ................................................................................................................................................... 90
Figure 36. Hardware Reset When Powered-Up ........................................................................................................................................................ 104
Figure 37. Hardware Reset In Normal Operation ...................................................................................................................................................... 104
Figure 38. Read Operation In SPI Mode ................................................................................................................................................................... 105
Figure 39. Write Operation In SPI Mode .................................................................................................................................................................... 105
Figure 40. JTAG Architecture .................................................................................................................................................................................... 347
Figure 41. JTAG State Diagram ................................................................................................................................................................................ 353
Figure 42. I/O Timing in Non-Multiplexed Mode ........................................................................................................................................................ 356
Figure 43. I/O Timing in Multiplexed Mode ................................................................................................................................................................ 357
Figure 44. T1/J1 Jitter Tolerance Performance Requirement .................................................................................................................................... 362
Figure 45. E1 Jitter Tolerance Performance Requirement ........................................................................................................................................ 363
Figure 46. T1/J1 Jitter Transfer Performance Requirement (AT&T62411 / GR-253-CORE / TR-TSY-000009) ....................................................... 364
Figure 47. E1 Jitter Transfer Performance Requirement (G.736) .............................................................................................................................. 365
Figure 48. Motorola Non-Multiplexed Mode Read Cycle ........................................................................................................................................... 366
List of Figures
10
September 30, 2019
IDT82P2281
Figure 49.
Figure 50.
Figure 51.
Figure 52.
SINGLE T1/E1/J1 LONG HAUL / SHORT HAUL TRANSCEIVER
Motorola Non-Multiplexed Mode Write Cycle ...........................................................................................................................................
Intel Non-Multiplexed Mode Read Cycle ..................................................................................................................................................
Intel Non-Multiplexed Mode Write Cycle ..................................................................................................................................................
SPI Timing Diagram .................................................................................................................................................................................
List of Figures
11
367
368
369
370
September 30, 2019
Single T1/E1/J1 Long Haul /
82P2281
Short Haul Transceiver
FEATURES
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LINE INTERFACE
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The device can be configured as T1, E1 or J1
Supports T1/E1/J1 long haul/short haul line interface
HPS for 1+1 protection without external relays
Receive sensitivity exceeds -36 dB @ 772 Hz and -43 dB @ 1024
Hz
Selectable internal line termination impedance: 100 (for T1), 75
/ 120 (for E1) and 110 (for J1)
Supports AMI/B8ZS (for T1/J1) and AMI/HDB3 (for E1) line encoding/decoding
Provides T1/E1/J1 short haul pulse templates, long haul LBO (per
ANSI T1.403 and FCC68: 0 dB, -7.5 dB, -15 dB, -22 dB) and userprogrammable arbitrary pulse template
Supports T1.102 line monitor
Transmit line short-circuit detection and protection
Separate Transmit and Receive Jitter Attenuators (2 per link)
Indicates the interval between the write pointer and the read pointer
of the FIFO in JA
Loss of signal indication with programmable thresholds according
to ITUT-T G.775, ETS 300 233 (E1) and ANSI T1.403 (T1/J1)
Supports Analog Loopback, Digital Loopback and Remote Loopback
The receiver and transmitter can be individually powered down
CONTROL INTERFACE
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Supports Serial Peripheral Interface (SPI) microprocessor and parallel Intel/Motorola non-multiplexed microprocessor interface
Global hardware and software reset
One general purpose I/O pin
Device power down
GENERAL
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Flexible reference clock (N x 1.544 MHz or N x 2.048 MHz)
(0
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