ax88190a ASIX Electronics Corporation, ax88190a Datasheet - Page 5

• Manufacturer Part Number: ax88190a
• Description: Pcmcia 10/100m Fast Ethernet Mac Controller With Embedded Memory
• Manufacturer: 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,
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
AX88190A
EECS
EECK
EEDI
EEDO
GPI/O
NE2000/GPIO
Registers
MODEM
LOADER I/F
SEEPROM
I/F
PCMCIA Fast Ethernet MAC Controller
Ctl BUS
and Memory Arbiter
PCMCIA Interface
8K* 16 SRAM
5
Remote
FIFOs
DMA
Home LAN PHY or
SA[9:0]
ASIX ELECTRONICS CORPORATION
10BASE-2 BNC type media can be
SD[15:0]
MAC
Core
STA
SMDC
SMDIO
SNI I/F
MII I/F