37959

Features:

·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, CAS AND PROPRIETARY SIGNALLINGS .
·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

Pinout




Specifications

Symbol	Parameter	Value	Unit
VDD	5V Power Supply Voltage	-0.5, 6.5	V
	Input or Output Voltage	-0.5, VDD + 0.5	V
Tstg	Storage Temperature	-55, +125

Description

The 37959 is a Subscriber line interface card controller for Central Office, Central Exchange,NT2 and PBX capable of handling :
- 16 U Interfaces or
- 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