ax88772a

Manufacturer Part Numberax88772a
DescriptionAsix Ax88772a - Single Chip Low-pin-count Usb 2.0 To 10/100m Fast Ethernet Controller.
ManufacturerASIX Electronics Corporation
ax88772a datasheet
 
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Features
Single chip USB 2.0 to 10/100M Fast Ethernet controller –
AX88772A
Single chip USB 2.0 to MII, single chip MII to Ethernet and
USB Bridging controller in Dual-PHY mode (US Patent
Pending) – AX88172A
USB Device Interface
Integrates on-chip USB 2.0 transceiver and SIE
compliant to USB Spec 1.1 and 2.0
Supports USB Full and High Speed modes with
Bus-Power or Self-Power capability
Supports 4 or 6 programmable endpoints on USB
interface
High performance packet transfer rate over USB bus
using proprietary burst transfer mechanism (US Patent
Approval)
Supports USB to Ethernet bridging or vice versa in
hardware
Fast Ethernet Controller
Integrates 10/100Mbps Fast Ethernet MAC/PHY
IEEE 802.3 10BASE-T/100BASE-TX compatible
Supports
twisted
pair
crossover
auto-correction (HP Auto-MDIX)
Embedded 16KB SRAM for RX packet buffering and
8KB SRAM for TX packet buffering
Supports both Full-duplex with flow control and
Half-duplex with backpressure operation
Supports 2 VLAN ID filtering, received VLAN Tag (4
bytes) can be stripped off or preserved
MAC/PHY loop-back diagnostic capability
Support Wake-on-LAN Function
Product Description
The AX88x72A Low-pin-count USB 2.0 to 10/100M Fast Ethernet controller is a high performance and highly integrated ASIC
which enables a low cost, small form factor, and simple plug-and-play Fast Ethernet network connection capability for desktops,
notebook PC’s, UMPC’s, cradles/port replicators/docking stations, game consoles, digital-home appliances, and any embedded
system using a standard USB port.
The AX88x72A features a USB interface to communicate with a USB Host Controller and is compliant with USB specification V1.1
and V2.0. The AX88x72A implements 10/100Mbps Ethernet LAN function based on IEEE802.3 and IEEE802.3u standards with
24KB of embedded SRAM for packet buffering. In addition, it integrates an on-chip 10/100Mbps Ethernet PHY, simplifying system
design.
The AX88172A provides an optional External Media Interface (EMI) for an external PHY or an external MAC depending on
ASIX Electronics Corporation
4F, No.8, Hsin Ann Rd.,
Hsinchu Science Park,
Hsinchu 30078, Taiwan
USB 2.0 to 10/100M Fast Ethernet Controller
Supports Suspend mode and Remote Wakeup via
Link-up, Magic packet, MS wakeup frame and external
pin
Optional PHY power down during Suspend mode
Versatile External Media Interface
Optional MII interface in MAC mode allows AX88172A
to work with external 100BASE-FX Ethernet PHY or
HomePNA PHY
Optional Reverse-MII or Reverse-RMII interface in
PHY mode allows AX88172A to work with external
HomePlug PHY or glueless MAC-to-MAC connections
Optional Reverse-MII interface in Dual-PHY mode (US
Patent Pending) allows AX88172A to act as an Ethernet
PHY or USB 2.0 PHY for external MAC device that
needs Ethernet and USB in system application
Supports 256/512 bytes (93c56/93c66) of serial EEPROM
(for storing USB Descriptors)
Supports automatic loading of Ethernet ID, USB
Descriptors and Adapter Configuration from EEPROM after
power-on initialization
Provides optional serial interface, I2C, SPI and UART
detection
and
Integrates on-chip voltage regulator and only requires a
single 3.3V power supply
12MHz and 25Mhz clock input from either crystal or
oscillator source
Integrates on-chip power-on reset circuit
Small form factor with 64-pin LQFP (AX88772A) or
80-pin TQFP (AX88172A) RoHS compliant package
Operating temperature range: 0°C to 70°C
different application purposes. The EMI can be a
media-independent interface (MII) for implementing
100BASE-FX Ethernet or HomePNA functions. The
EMI can also be a Reverse-MII or Reverse
Reduced-MII
MAC-to-MAC connections to any MCU with
Ethernet MAC MII or RMII interface. In addition,
the EMI can be configured to Dual-PHY mode
allowing the AX88172A to act as an Ethernet PHY
or USB 2.0 PHY for external MAC devices that
need Ethernet and USB interfaces in their system
applications. Optional serial interfaces such as I2C,
SPI, and UART are provided as a control channel
from the USB Host Controller to communicate with
the external MCU chip.
1
AX88772A/AX88172A
Low-pin-count
Product Brief
(Reverse-RMII)
for
glueless
Released Date: 12/17/2007
TEL: +886-3-579-9500
FAX: +886-3-579-9558
http://www.asix.com.tw/

ax88772a Summary of contents

  • Page 1

    ... Integrates on-chip power-on reset circuit Small form factor with 64-pin LQFP (AX88772A) or 80-pin TQFP (AX88172A) RoHS compliant package Operating temperature range: 0°C to 70°C different application purposes. The EMI can be a media-independent interface (MII) for implementing 100BASE-FX Ethernet or HomePNA functions ...

  • Page 2

    ... Application Diagram High-speed USB-to-LAN Applications ASIX Electronics Corporation 4F, No.8, Hsin Ann Rd., Hsinchu Science Park, Hsinchu 30078, Taiwan AX88772A/AX88172A USB 2.0 to 10/100M Fast Ethernet Controller 2 Low-pin-count Released Date: 12/17/2007 TEL: +886-3-579-9500 FAX: +886-3-579-9558 http://www.asix.com.tw/ ...