AX88796BLF / AX88796BLI
Low-pin-count Non-PCI 8/16-bit 10/100M Fast Ethernet Controller
Features
High-performance non-PCI local bus
Support both 8 bit and 16 bit local CPU interfaces
include MCS-51 series, 80186 series CPU and ISA
bus
SRAM-like host interface (US Patent Approval),
easily interfaced to most common embedded
MCUs
Embed 8Kx16 bits SRAM for packet buffers
Support Slave-DMA to minimize CPU overhead
Support burst-mode read for highest performance
applications
Interrupt pin with programmable Hold-off timer
Single-chip Fast Ethernet controller
Compatible with IEEE802.3, 802.3u standards
Integrate Fast Ethernet MAC/PHY transceiver in one
chip
Support 10Mbps and 100Mbps data rate
Support full and half duplex operations
Support 10/100Mbps N-way Auto-negotiation
operation
Support twisted pair crossover detection and
auto-correction (HP Auto-MDIX)
Support IEEE 802.3x flow control for full-duplex
operation
Document No.: AX88796B_115/01/13/12
Support back-pressure flow control for half-duplex
operation
Support VLAN match filter
Support Wake-on-LAN function to reduce power by
following events
Detection of a change in the network link state
Receipt of a Magic Packet
Receipt of a MS wakeup frame
NE2000 register level compatible instruction
Performance can be enhanced with only a minor host
driver modification from original NE2000 driver
Support EEPROM interface to store MAC address
(Optional)
Support up to 2 (out) /1 (in/out) General Purpose pins
Support LED pins for various network activity
indications
Integrate voltage regulator and 25MHz crystal
oscillator
0.18um CMOS process. 3.3V power supply with 5V
tolerance I/O pins
64-pin LQFP , RoHS package
Operate over 0 to +70 C or -40 to +85 C temperature
range
Product description
The AX88796B is a low-pin-count (64-pin LQFP) non-PCI Ethernet controller for the Embedded and Industrial Ethernet
applications. The AX88796B supports 8/16-bit SRAM-like host interface, providing a glue-less connection to most
common embedded MCUs. The AX88796B integrates on-chip Fast Ethernet MAC and PHY, which is IEEE802.3
10Base-T and IEEE802.3u 100Base-TX compatible, and 8Kx16 bits embedded SRAM for packet buffering to
accommodate high bandwidth applications. The AX88796B has a wide array of features including support for Twisted
Pair Crossover Detection and Auto-Correction, Wake-on-LAN power management, and IEEE 802.3x and back-pressure
flow control. The AX88796B supports two operating temperature ranges, namely, commercial grade from 0 to 70 C and
industrial grade from –40 to 85 C. The small form factor of 64-pin LQFP package helps reduce the overall PCB space.
The programming of AX88796B is simple and compatible with NE2000, so the users don‟t need any modification and can
easily port the software drivers to many embedded systems very quickly. Combining these features with ASIX‟s free
TCP/IP software stack for 8-bit microcontrollers, AX88796B provides the best Ethernet solution for embedded
networking applications.
System Block Diagram
51 series
/
186 bus
series
/
ISA bus
General
processor
8bit / 16bit
Non-PCI bus
Address
Bus
CSn
RDn / WRn
Data Bus
AX88796B
With
10/100 Mbps
PHY
ASIX ELECTRONICS CORPORATION
Interrupt
AX88796B
With
10/100 Mbps
PHY
First Released Date: 2006 / 03 / 01
4F, NO.8, HSIN ANN Rd., Science-based Industrial Park, Hsin-Chu City, Taiwan, R.O.C.
TEL: 886-3-579-9500
FAX: 886-3-579-9558
http://www.asix.com.tw
