AX88196 datasheet(4/42 Pages) ASIX

4 / 42 page

AX88196

Local CPU BUS MAC Controller

ASIX ELECTRONICS CORPORATION

1.0 Introduction

1.1 General Description:

The AX88196 provides industrial standard NE2000 registers level compatable instruction set. Various

drivers are easy acquired, maintenance and usage. No much additional effort to be paid. Software is easily

port to various embedded system with no pain and tears

The AX88196 Fast Ethernet Controller is a high performance and highly integrated local CPU bus Ethernet

Controller with embedded 8K*16 bit SRAM. The AX88196 supports both 8 bit and 16 bit local CPU

interfaces include MCS-51 series, 80186 series, MC68K series CPU and ISA bus. The AX88196 implements

both 10Mbps and 100Mbps Ethernet function based on IEEE802.3 / IEEE802.3u LAN standard and

supports both 10Mbps/100Mbps media-independent interface (MII) and legacy pure 10Mbps SNI interface

to simplify the design. Using Serial Network Interface (SNI) transceiver, Home LAN PHY or 10BASE-2 BNC

type media can be supported.

As well as, the chip also provides Standard Print Port ( parallel port interface ), can be used for printer server

device or treat as simple general I/O port.

The main difference between AX88196 and AX88195 are : 1) Replace memory I/F with SNI and SPP I/F. 2)

Canceling SAX address decoding. 3) Fix interrupt status can’t always clean up problem of AX88195.

AX88196 use 128-pin LQFP low profile package, 25MHz operation, dual 5V and 3.3V CMOS process with

5V I/O tolerance or pure 3.3V operation.

1.2 AX88196 Block Diagram:

Fig - 1 AX88196 Block Diagram

MAC

Core

8K* 16 SRAM

and Memory Arbiter

Remote

DMA

FIFOs

NE2000

Registers

Host Interface

STA

SEEPROM

I/F

SD[15:0]

SA[9:0]

Ctl BUS

MII I/F

EECS

EECK

EEDI

EEDO

SNI I/F

SPP

/ GIO

Print Port

General

I/O

SMDC

SMDIO

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