AX88190AL datasheet(5/49 Pages) ETC

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AX88190A

PCMCIA Fast Ethernet MAC Controller

ASIX ELECTRONICS CORPORATION

1.0 Introduction

1.1 General Description:

The AX88190A provides industrial standard NE2000 registers level compatable instruction set. Various drivers

are easy acquired, maintenance and usage with no pain and tears

The AX88190A Fast Ethernet Controller is a high performance and highly integrated PCMCIA bus Ethernet

Controller with embedded 8K*16 bit SRAM. The AX88190A contains a 16 bit PCMCIA interfaces to host CPU

and compliant with PC Card Standard – February 1995. The AX88190A implements both 10Mbps and

100Mbps Ethernet function based on IEEE802.3 / IEEE802.3u LAN standard. The AX88190A support

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. The AX88190A is built in interface to connect FAX/MODEM chipset with parallel bus interface.

The main difference between AX88190A and AX88190 are : 1) Replace memory I/F with SNI I/F. 2) Fix OE#

signal synchronous problem 3) Fix interrupt status can’t always clean up problem of AX88190. 4) Add 8 general

Purpose I/O ports. 5) Change MPD_SET (pin 74 -> pin 68) and PPD_SET (pin 76 -> pin 70) power on setup

pins location.

AX88190A use 128-pin LQFP low profile package, typical 25MHz operation, dual 5V and 3.3V CMOS process

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

1.2 AX88190A Block Diagram:

Fig - 1 AX88190A Block Diagram

MAC

Core

8K* 16 SRAM

and Memory Arbiter

Remote

DMA

FIFOs

NE2000/GPIO

Registers

PCMCIA Interface

STA

SEEPROM

LOADER I/F

SD[15:0]

SA[9:0]

Ctl BUS

MII I/F

SMDC

SMDIO

EECS

EECK

EEDI

EEDO

MODEM

I/F

SNI I/F

GPI/O

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