The T7630 provides glueless interconnection from a
T1/E1 line to a digital PCM system. Minimal external
clocks are needed. Only a system clock/frame sync
and a phase-locked line rate clock are required. Sys-
tem diagnostic and performance monitoring capabil-
ity with integrated programmable test pattern
generator/detector and loopback modes is provided.
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Alarm reporting and performance monitoring per
AT&T
®
,
ANSI
®
, and ITU-T standards.
Programmable, independent transmit and receive
system interfaces at a 2.048 MHz, 4.096 MHz, or
8.192 MHz data rate.
System interface master mode for generation of
system frame sync from the line source.
Internal phase-locked loop (with external VCXO)
for generation of system clock from the line source.
Facility Data Link Features
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Power Requirements and Package
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Single 5 V ± 5% supply.
Low power: 375 mW per channel maximum.
144-pin TQFP package.
Operating temperature range: –40 °C to +85 °C.
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HDLC or transparent modes.
Automatic transmission and detection of
ANSI
T1.403 FDL performance report message and bit-
oriented codes.
64-byte FIFO in both transmit and receive direc-
tions.
Microprocessor Interface
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T1/E1 Line Interface Features
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Full T1/E1 pulse template compliance.
Receiver provides equalization for up to 11 dB of
loss.
Digital clock and data recovery.
Line coding: B8ZS, HDB3, ZCS, and AMI.
Line interface coupling and matching networks for
T1 and E1 (120
Ω
and 75
Ω).
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33 MHz, 8-bit data interface, no wait-states.
Intel
®
or
Motorola
®
interface modes with multi-
plexed or demultiplexed buses.
Directly addressable control registers.
Applications
s
T1/E1 Framer Features
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Supports T1 framing modes ESF, D4,
SLC
®
-96,
T1DM DDS.
Supports G.704 basic and CRC-4 multiframe for-
mat E1 framing and procedures consistent with
G.706.
Supports unframed transmission format.
T1 signaling modes: transparent; ESF 2-state,
4-state, and 16-state; D4 2-state and 4-state;
SLC
-96 2-state, 4-state, 9-state and 16-state. E1
signaling modes: transparent and CAS.
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Customer Premises Equipment—CSU/DSU,
routers, digital PBX, channel banks (CB), base
transceiver stations (BTS-picocell), small switches,
and digital subscriber loop access multiplexers
(DSLAM).
Loop/Access—DLC/IDLC,
DCS, BTS (microcell/
macrocell), DSLAMs, and multiplexers (terminal,
synchronous/asynchronous, add drop).
Central Office—Digital
switches, DCS, CB,
access concentrators, remote switch modules
(RSM), and DSLAMs.
Test Equipment—Transmission/BERT
tester.
T7630 Dual T1/E1 5.0 V Short-Haul Terminator (Terminator-II)
Preliminary Data Sheet
May 2002
Table of Contents
Contents
Page
Features ................................................................................................................................................................... 1
T1/E1 Line Interface Features............................................................................................................................... 1
Power Requirements and Package....................................................................................................................... 1
T1/E1 Framer Features ......................................................................................................................................... 1
Facility Data Link Features.................................................................................................................................... 1
T1/E1 Line Interface Features............................................................................................................................. 12
T1/E1 Framer Features ....................................................................................................................................... 12
Facility Data Link Features.................................................................................................................................. 13
Pin Information ....................................................................................................................................................... 18
Line Interface Unit: Block Diagram ......................................................................................................................... 25
Line Interface Unit: Receive ................................................................................................................................... 25
Data Recovery..................................................................................................................................................... 25
Jitter Accommodation and Jitter Transfer Without the Jitter Attenuator .............................................................. 26
Receive Line Interface Configuration Modes ...................................................................................................... 26
Line Interface Unit: Transmit .................................................................................................................................. 32
LIU Transmitter Configuration Modes ................................................................................................................. 33
LIU Transmitter Alarms ....................................................................................................................................... 33
DSX-1 Transmitter Pulse Template and Specifications ...................................................................................... 34
CEPT Transmitter Pulse Template and Specifications ....................................................................................... 36
Line Interface Unit: Jitter Attenuator ....................................................................................................................... 37
Jitter Transfer Function ....................................................................................................................................... 37
Jitter Attenuator Enable (Transmit or Receive Path)........................................................................................... 38
Line Interface Unit: Loopbacks ............................................................................................................................... 41
Full Local Loopback (FLLOOP)........................................................................................................................... 41
Digital Local Loopback (DLLOOP) ...................................................................................................................... 41
Line Interface Unit: Other Features ........................................................................................................................ 41
LIU Powerdown (PWRDN) .................................................................................................................................. 41
Loss of Framer Receive Line Clock (LOFRMRLCK Pin)..................................................................................... 41
In-Circuit Testing and Driver High-Impedance State (3-STATE)......................................................................... 41
LIU Delay Values................................................................................................................................................. 42
Line Interface Unit: Line Interface Networks........................................................................................................... 43
Interface Mode and Line Encoding...................................................................................................................... 47
DS1: Alternate Mark Inversion (AMI)................................................................................................................... 48
DS1: Zero Code Suppression (ZCS)................................................................................................................... 48
CEPT: High-Density Bipolar of Order 3 (HDB3).................................................................................................. 49
T7630 Dual T1/E1 5.0 V Short-Haul Terminator (Terminator-II)
Table of Contents
(continued)
Contents
Page
T1 Loss of Frame Alignment (LFA)......................................................................................................................57
CEPT Loss of Basic Frame Alignment (LFA).......................................................................................................63
CEPT Loss of Frame Alignment Recovery Algorithm ..........................................................................................63
CEPT Time Slot 0 CRC-4 Multiframe Structure...................................................................................................64
CEPT Loss of CRC-4 Multiframe Alignment (LTS0MFA) ....................................................................................65
CEPT Loss of CRC-4 Multiframe Alignment Recovery Algorithms......................................................................66
CEPT Time Slot 16 Multiframe Structure.............................................................................................................70
CEPT Loss of Time Slot 16 Multiframe Alignment (LTS16MFA) .........................................................................71
CEPT Loss of Time Slot 16 Multiframe Alignment Recovery Algorithm ..............................................................71
CEPT Time Slot 0 FAS/NOT FAS Control Bits ......................................................................................................71
FAS/NOT FAS Si- and E-Bit Source....................................................................................................................71
NOT FAS A-Bit (CEPT Remote Frame Alarm) Sources ......................................................................................72
NOT FAS Sa-Bit Sources ....................................................................................................................................72
Sa Facility Data Link Access................................................................................................................................73
NOT FAS Sa Stack Source and Destination........................................................................................................74
CEPT Time Slot 16 X0—X2 Control Bits .............................................................................................................76
CEPT: Time Slot 16 Signaling.................................................................................................................................77
Alarms and Performance Monitoring.......................................................................................................................81
Loopback and Transmission Modes ....................................................................................................................88
Line Test Patterns................................................................................................................................................91
Automatic and On-Demand Commands ..............................................................................................................95
Receive Facility Data Link Interface.....................................................................................................................97
Transmit Facility Data Link Interface..................................................................................................................103
CHI Parameters .................................................................................................................................................113
CHI Frame Timing..............................................................................................................................................115
CHI Offset Programming....................................................................................................................................118
Principle of the Boundary Scan..........................................................................................................................120
Agere Systems Inc.
3
T7630 Dual T1/E1 5.0 V Short-Haul Terminator (Terminator-II)
Preliminary Data Sheet
May 2002
Table of Contents
(continued)
Contents
Page
Test Access Port Controller............................................................................................................................... 121
Global Register Architecture................................................................................................................................. 139
Global Register Structure ..................................................................................................................................... 140
Primary Block Interrupt Status Register (GREG0) ............................................................................................ 140
Global Loopback Control Register (GREG2) .................................................................................................... 141
Global Loopback Control Register (GREG3) .................................................................................................... 141
Global Control Register (GREG4) ..................................................................................................................... 142
Device ID and Version Registers (GREG5—GREG7) ...................................................................................... 142
Line Interface Unit (LIU) Register Architecture..................................................................................................... 143
Line Interface Alarm Register ............................................................................................................................... 144
Alarm Status Register (LIU_REG0)................................................................................................................... 144
Line Interface Alarm Interrupt Enable Register .................................................................................................... 144
Line Interface Control Registers ........................................................................................................................... 145
LIU Control Register (LIU_REG2) ..................................................................................................................... 145
LIU Control Register (LIU_REG3) ..................................................................................................................... 145
LIU Control Register (LIU_REG4) ..................................................................................................................... 146
LIU Configuration Register (LIU_REG5) ........................................................................................................... 147
LIU Configuration Register (LIU_REG6) ........................................................................................................... 147
Global Registers................................................................................................................................................ 198
Line Interface Unit Parameter/Control and Status Registers ............................................................................ 198
Facility Data Link Parameter/Control and Status Registers (Read-Write)........................................................ 206
Absolute Maximum Ratings................................................................................................................................. 207
4
Agere Systems Inc.
Preliminary Data Sheet
May 2002
T7630 Dual T1/E1 5.0 V Short-Haul Terminator (Terminator-II)
Power Supply Bypassing ......................................................................................................................................208
Ordering Information .............................................................................................................................................210
Figures
Page
Figure 1. T7630 Block Diagram (One of Two Channels) ........................................................................................14
Figure 2. T7630 Block Diagram: Receive Section (One of Two Channels) ............................................................16
Figure 3. T7630 Block Diagram: Transmit Section (One of Two Channels)............................................................17