IDT82P2282 Integrated Device Technology, Inc., IDT82P2282 Datasheet - Page 3

• Manufacturer Part Number: IDT82P2282
• Description: 2 Channel T1/J1/E1 Transceiver
• Manufacturer: Integrated Device Technology, Inc.

1 PIN ASSIGNMENT ............................................................................................................................................................ 3
2 PIN DESCRIPTION ........................................................................................................................................................... 4
3 FUNCTIONAL DESCRIPTION ........................................................................................................................................ 11
Table of Contents
FEATURES ........................................................................................................................................................................ 1
APPLICATIONS ................................................................................................................................................................ 1
BLOCK DIAGRAM ............................................................................................................................................................ 2
3.1 T1 / E1 / J1 MODE SELECTION .................................................................................................................................................................. 13
3.2 RECEIVER IMPEDANCE MATCHING ......................................................................................................................................................... 14
3.3 ADAPTIVE EQUALIZER .............................................................................................................................................................................. 16
3.4 DATA SLICER .............................................................................................................................................................................................. 16
3.5 CLOCK AND DATA RECOVERY ................................................................................................................................................................ 16
3.6 RECEIVE JITTER ATTENUATOR ............................................................................................................................................................... 17
3.7 DECODER .................................................................................................................................................................................................... 18
3.8 FRAME PROCESSOR ................................................................................................................................................................................. 22
3.7.1
3.7.2
3.7.3
3.8.1
3.8.2
Line Code Rule ............................................................................................................................................................................... 18
3.7.1.1
3.7.1.2
Decode Error Detection ................................................................................................................................................................. 18
3.7.2.1
3.7.2.2
LOS Detection ................................................................................................................................................................................ 19
T1/J1 Mode ...................................................................................................................................................................................... 22
3.8.1.1
3.8.1.2
3.8.1.3
3.8.1.4
E1 Mode .......................................................................................................................................................................................... 29
3.8.2.1
3.8.2.2
3.8.2.3
T1 / J1 Mode .................................................................................................................................................................... 18
E1 Mode ........................................................................................................................................................................... 18
T1 / J1 Mode .................................................................................................................................................................... 18
E1 Mode ........................................................................................................................................................................... 18
Synchronization Searching ............................................................................................................................................... 22
3.8.1.1.1
3.8.1.1.2
3.8.1.1.3
3.8.1.1.4
Error Event And Out Of Synchronization Detection .......................................................................................................... 26
3.8.1.2.1
3.8.1.2.2
3.8.1.2.3
3.8.1.2.4
Overhead Extraction (T1 Mode SLC-96 Format Only) ..................................................................................................... 27
Interrupt Summary ............................................................................................................................................................ 27
Synchronization Searching ............................................................................................................................................... 31
3.8.2.1.1
3.8.2.1.2
3.8.2.1.3
Error Event And Out Of Synchronization Detection .......................................................................................................... 33
3.8.2.2.1
3.8.2.2.2
3.8.2.2.3
Overhead Extraction ......................................................................................................................................................... 34
3.8.2.3.1
3.8.2.3.2
Super Frame (SF) Format ............................................................................................................................. 22
Extended Super Frame (ESF) Format ........................................................................................................... 23
T1 Digital Multiplexer (DM) Format (T1 only) ................................................................................................ 24
Switch Line Carrier - 96 (SLC-96) Format (T1 only) ...................................................................................... 25
Super Frame (SF) Format ............................................................................................................................. 26
Extended Super Frame (ESF) Format ........................................................................................................... 26
T1 Digital Multiplexer (DM) Format (T1 only) ................................................................................................ 26
Switch Line Carrier - 96 (SLC-96) Format (T1 only) ...................................................................................... 26
Basic Frame .................................................................................................................................................. 31
CRC Multi-Frame ........................................................................................................................................... 32
CAS Signaling Multi-Frame ........................................................................................................................... 33
Out Of Basic Frame Synchronization ............................................................................................................ 34
Out Of CRC Multi-Frame Synchronization .................................................................................................... 34
Out Of CAS Signaling Multi-Frame Synchronization ..................................................................................... 34
International Bit Extraction ............................................................................................................................. 34
Remote Alarm Indication Bit Extraction ......................................................................................................... 34
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Table of Contents
October 7, 2003