7990 Local Area Network Controller

Overview

The SI79C90 Local Area Network Controller for Ethernet is an IP core designed to greatly simplify interfacing a microcomputer or minicomputer to an IEEE 802.3 / Ethernet Local Area Network. The SI 79C90 interfaces a minicomputer or microcomputer with the IEEE 802.3 / Ethernet Local Area Network. Its versatile bus interface logic interfaces the peripheral chip with Intel, Motorola, Zilog or AMD microprocessors. The serial I/O interface is compatible with Ethernet IEEE 802.3 draft specifications. On - board DMA, advanced buffer management, and extensive error reporting and diagnostics facilitate design and improve system performance.

There are several LAN technologies in use today, but Ethernet is by far the most popular. The widespread popularity of Ethernet ensures that there is a large market for Ethernet equipment, which also helps keep the technology competitively priced. Silicon Interfaces' Ethernet family IP cores can be easily inserted into the complex ethernet subsystem. The result is, very less time to market, cost and performance efficiency.

Key Features

Compatible with Ethernet and IEEE 802.3 10BASE 5 Type A, and 10BASE 2 Type B, 10BASE - T
Easily interfaced with 80x86, 680x0, Am29000^®, Z8000^™, LSI - II^™ microprocessors.
Can be programmed by the host using its internal control and status registers.
Supports 16 bit wide multiplexed data bus and 24 bit wide address bus.
Flexible parallel bus interface so as to easily interface with variety of 16 bit microprocessors with minimum glue logic.
On - board DMA and buffer management, 64 byte Receive, 48 byte Transmit FIFOs.
Network and packet error reporting.
Back - to - back packet reception with as little as 0.5 ms interframe spacing.
Incorporates number of self - test and diagnostic routines to test the operation. Reports both network and packet errors.
Fully synthesizable Register Transfer Level (RTL) VHDL.

Block Diagram

Deliverables

Fully synthesizable Register Transfer Level (RTL) VHDL.

Technical Specifications

Availability

now

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