TI380FPA PACKETBLASTER^TM

SPWS011A - MARCH 1995 - REVISED AUGUST 1995

features

• Frame-Processing Accelerator for TI380C2x and TI380C3x
• Supports TI380C2x and TI380C3x Token-Ring^TM Adapters
• Supports TI380C2x Ethernet^TM Adapters
• Supports 4- or 6-MHz Adapter Local Bus Operation
• Interfaces Directly to TI380C2x Network Commprocessors
• Hardware Capture of Network Statistics
• Increases Adapter-Frame-Processing Rate up to 28K Frames per Second
• Single 5-V Supply
• 0.8-um CMOS Technology
• 52-Pin Plastic Leaded Chip Carrier (FN)
• Operating Temperature Range 0°C to 70°C

description

The TI380FPA frame processing accelerator (FPA) provides hardware to accelerate the processing rate of frames by the network communications processor (commprocessor). It supports a 4-MHz or 6-MHz adapter local bus operation. The CPU of a normal TI380C2x or TI380C3x adapter is responsible for frame transport between network and host, gathering adapter and network statistics, local-network-management protocols, and medium-access-control (MAC) protocols. The TI380FPA puts the performance bottlenecks of frame transport and statistics gathering into dedicated hardware, leaving the CPU to run MAC and management protocols.

The TI380FPA is responsible for:

• Management of all commprocessor protocol handler (PH) operations. The FPA manages all receive- and transmit-frame queues.
• Management of adapter buffers. The FPA manages all adapter memory buffers, allocating them to the appropriate queues as required.
• Management of host direct memory access (DMA) by way of the commprocessor system interface (SIF) DMA controller.
• Management of frame transfers to the host. The FPA manages queues of frames to and from the host, manages rx/tx list information, and coordinates the two.
• Gathering adapter and network statistics in dedicated hardware counters.

IBM and Token-Ring Network are trademarks of International Business Machines Corp. PacketBlaster is a trademark of Texas Instruments Incorporated.

Title: PACKETBLASTER(TM)
Product Family: NETWORKING COMPONENTS
Device Functionality: TOKEN RING

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View the complete PDF datasheet: spws011a.pdf (314 K Bytes) (Requires Acrobat Reader 3.x)

View more information about generic part numbers:TI380FPA

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