Texas Instruments TLC552CD

DESCRIPTION

The STLC5464 is a Subscriber line interface card 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 TelephoneService) 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