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DESCRIPTION

The STLC5465B is a Subscriberline interfacecard controller for Central Office, Central Exchange, NT2 and PBX capable of handling :

- 16 U Interfacesor

- 2 Megabits line interface cards or

- 16 SLICs (Plain Old Telephone Service) or

- Mixed analogue and digital Interfaces (SLICs or

U Interfaces)or

- 16 S Interfaces

- Switching Network with centralized processing

■ 32 TxHDLCs WITH BROADCASTING CAPABILITY AND/OR CSMA/CR FUNCTION WITH

AUTOMATIC RESTART IN CASE OF TX

FRAME ABORT

■ 32 RxHDLCs INCLUDING ADDRESS RECOGNITION

■ 16 COMMAND/INDICATE CHANNELS (4 OR

6-BIT PRIMITIVE)

■ 16 MONITOR CHANNELS PROCESSED IN

ACCORDANCE WITH GCI OR V*

■ 256 x 256 SWITCHING MATRIX WITHOUT

BLOCKING AND WITH TIME SLOT SEQUENCE INTEGRITY AND LOOPBACK PER

BIDIRECTIONAL CONNECTION

■ DMA CONTROLLER FOR 32 Tx CHANNELS

AND 32 Rx CHANNELS

■ HDLCs AND DMA CONTROLLER ARE CAPABLE OF HANDLING A MIX OF LAPD, LAPB,

SS7,CASANDPROPRIETARYSIGNALLINGS

■ EXTERNAL SHARED MEMORY ACCESS BETWEEN DMA CONTROLLER

AND MICROPROCESSOR

■ SINGLE MEMORY SHARED BETWEEN

n x MULTI-HDLCs AND SINGLE MICROPROCESSOR ALLOWS TO HANDLE n x 32

CHANNELS

■ BUS ARBITRATION

■ INTERFACE FOR VARIOUS 8,16 OR 32 BIT

MICROPROCESSORS

■ RAM CONTROLLER ALLOWS TO INTERFACE UP TO :

-16 MEGABYTES OF DYNAMIC RAM OR

-1 MEGABYTE OF STATIC RAM

■ INTERRUPT CONTROLLER TO STORE

AUTOMATICALLY EVENTS IN SHARED

MEMORY

■ PQFP160 PACKAGE

■ BOUNDARY SCAN FOR TEST FACILITY