AM79C32A Advanced Micro Devices, AM79C32A Datasheet
AM79C32A
Manufacturer Part Number
AM79C32A
Description
Digital Subscriber Controller (DSC) Circuit
Manufacturer
Advanced Micro Devices
Datasheet
1.AM79C32A.pdf
(101 pages)
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Am79C30A/32A
Digital Subscriber Controller™ (DSC™) Circuit
DISTINCTIVE CHARACTERISTICS
BLOCK DIAGRAM
This document contains information on a product under development at Advanced Micro Devices. The information
is intended to help you evaluate this product. AMD reserves the right to change or discontinue work on this proposed
product without notice.
Combines CCITT I.430 S/T-Interface Transceiver,
D-Channel LAPD Processor, Audio
Processor (DSC device only), and IOM-2
Interface in a single chip
Special operating modes allow realization of
CCITT I.430 power-compliant terminal
equipment
S- or T-Interface Transceiver
— Level 1 Physical Layer Controller
— Supports point-to-point, short and extended
— Provides multiframe support
passive bus configurations
XTAL1
XTAL2
MCLK
AREF
EAR1
EAR2
AINA
AINB
WR
RD
CS
LS1
LS2
FINAL
CAP1
Processor (MAP)
Oscillator
(Am79C30A
Main Audio
(OSC)
Only)
CAP2
D7 D6 D5 D4 D3 D2 D1 D0 INT A2
Ba
SBIN
Microprocessor Interface
Microprocessor Interface
B-channel Multiplexer
SBIOUT
Bd Be Bf
Bb
Peripheral Port
SBP/IOM-2 Interface
(MUX)
(MUX)
SCLK
(PP)
Bc
SFS
BCL/CH2STRB*
Certified protocol software support available
CMOS technology, TTL compatible
D-channel processing capability
— Flag generation/detection
— CRC generation/checking
— Zero insertion/deletion
— Four 2-byte address detectors
— 32-byte receive and 16-byte transmit FIFOs
B1
B2
A1 A0
D-Channel Data
Link Controller
Interface Unit
Publication# 09893 Rev: H Amendment/0
Issue Date: December 1998
S/T Line
(DLC)
HSW
(LIU)
Channel
Channel
D
D
LOUT1
LOUT2
LIN1
LIN2
RESET
09893H-1
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