ASIX ELECTRONICS CORPORATION

4

AX88195 Local CPU Bus Fast Ethernet MAC Controller

1.0 Introduction

1.1 General Description:

The AX88195 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 AX88195 Fast Ethernet Controller is a high performance local CPU bus Ethernet Controller. The AX88195

supports both 8 bit and 16 bit local CPU interfaces include MCS-51 series, 80x86 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) to simplify

the design.

AX88195 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 AX88195 Block Diagram:

Fig - 1 AX88195 Block Diagram

MAC

Core

SRAM

Arbiter

Remote

DMA

FIFOs

NE2000

Registers

Host Interface

STA

SEEPROM

I/F

SD[15:0]

SA[9:0]

Ctl BUS

MII I/F

MEMD[15:0]

MEMA[15:1]

EECS

EECK

EEDI

EEDO