Description

The TLC551IPWR is an electronic component model in the product category of IC Chips. It is a Subscriber line interface card controller for Central Office, Central Exchange, NT2 and PBX. It is capable of handling various interfaces such as U Interfaces, Megabits line interface cards, SLICs (Plain Old TelephoneService), mixed analogue and digital Interfaces (SLICs or U Interfaces), and S Interfaces. It also features a switching network with centralized processing.

Specifications and 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 signalings
• 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 automatically store events in shared memory
• PQFP160 package

Application Scenarios

The TLC551IPWR electronic component model is commonly used in Subscriber line interface card controllers for Central Office, Central Exchange, NT2, and PBX. It is suitable for applications that require handling various interfaces, including U Interfaces, Megabits line interface cards, SLICs, mixed analogue and digital Interfaces, and S Interfaces. It is also applicable for switching networks with centralized processing.

Comparison

• Wide range of interface handling capabilities
• High-performance switching network
• Multiple Tx and Rx channels
• Support for various microprocessors
• Large memory capacity

• Specific to the PQFP160 package