82596CA
HIGH-PERFORMANCE 32-BIT LOCAL
AREA NETWORK COPROCESSOR
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Performs Complete CSMA/CD Medium
Access Control (MAC) Functions—
Independently of CPU
— IEEE 802.3 (EOC) Frame Delimiting
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Supports Industry Standard LANs
— IEEE TYPE 10BASE-T,
IEEE TYPE 10BASE5 (Ethernet),
IEEE TYPE 10BASE2,
IEEE TYPE 1BASE5 (StarLAN*),
and the Proposed Standard
10BASE-F
— Proprietary CSMA/CD Networks Up
to 20 Mb/s
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On-Chip Memory Management
— Automatic Buffer Chaining
— Buffer Reclamation after Receipt of
Bad Frames; Optional Save Bad
Frames
— 32-Bit Segmented or Linear (Flat)
Memory Addressing Formats
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Network Management and Diagnostics
— Monitor Mode
— 32-Bit Statistical Counters
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82586 Software Compatible
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Optimized CPU Interface
— Optimized Bus Interface to Intel
i486 TM DX, i486 TM SX, i487SX and
80960CA Processors
— 33 MHz, 25 MHz, 20 MHz and 16 MHz
Clock Frequencies
— Supports Big Endian and Little
Endian Byte Ordering
32-Bit Bus Master Interface
— 106 MB/s Bus Bandwidth
— Burst Bus Transfers
— Bus Throttle Timers
— Transfers Data at 100% of Serial
Bandwidth
— 128-Byte Receive FIFO, 64-Byte
Transmit FIFO
Configurable Initialization Root for Data
Structures
High-Speed, 5V, CHMOS IV
Technology
132-Pin Plastic Quad Flat Pack (PQFP)
and PGA Package
(See Packaging Spec Order No. 240800-001,
Package Type KU and A)
Self-Test Diagnostics
290218 –1
Figure 1? 82596CA Block Diagram
