ax88772b ASIX Electronics Corporation, ax88772b Datasheet
ax88772b
Manufacturer Part Number
ax88772b
Description
Low-power Usb 2.0 To 10/100m Fast Ethernet Controller
Manufacturer
ASIX Electronics Corporation
Datasheet
1.AX88772B.pdf
(2 pages)
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Features
Product Description
The AX88772B Low-power 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, Ultra-Mobile PC’s, docking stations, game consoles, digital-home appliances, and any embedded system using a standard USB
port.
The AX88772B features a USB interface to communicate with a USB Host Controller and is compliant with USB specification V1.1
and V2.0. The AX88772B implements 10/100Mbps Ethernet LAN function based on IEEE802.3 and IEEE802.3u standards with
embedded SRAM for packet buffering. The AX88772B integrates an on-chip 10/100Mbps Ethernet PHY to simplify system design.
The AX88772B provides an optional Multi-Function-Bus portion A and B (MFA and MFB) for external PHY or external MAC for
different application purposes. The MFA/MFB can be a reduce-media-independent interface (RMII) for implementing HomePlug,
HomePNA, etc. functions. The MFA/MFB can also be a Reverse Reduced-MII (Reverse-RMII) for glueless MAC-to-MAC
connections to any MCU with Ethernet MAC RMII interface. In addition, the MFA/MFB can be configured as general purpose I/O.
ASIX Electronics Corporation
4F, No.8, Hsin Ann Rd.,
Hsinchu Science Park,
Hsinchu, Taiwan 30078
Single chip USB 2.0 to 10/100M Fast Ethernet controller
Single chip USB 2.0 to RMII, support HomePNA
Single chip USB 2.0 to Reverse-RMII, supports glueless
USB Device Interface
Fast Ethernet Controller
Support Wake-on-LAN Function
HomePlug PHY
MAC-to-MAC connections
Supports USB Full and High Speed modes with
Bus-Power or Self-Power capability
Supports 4 or 6 programmable endpoints on USB
interface
Supports AutoDetach power saving, Detach from USB
host when Ethernet cable is unplugged
High performance packet transfer rate over USB bus
using proprietary burst transfer mechanism (US Patent
Approval)
Integrates 10/100Mbps Fast Ethernet MAC/PHY
IEEE 802.3 10Base-T/100Base-TX compatible
IEEE 802.3 100BASE-FX compatible
Supports
auto-correction (HP Auto-MDIX)
Embedded SRAM for RX/TX packet buffering
Supports IPv4/ IPv6 packet Checksum Offload Engine
to
IP/TCP/UDP/ICMP/IGMP & IPv6 TCP/UDP/ICMPv6
checksum check & generation
Supports full duplex operation with IEEE 802.3x flow
control and half duplex operation with back-pressure
flow control
Supports 2 VLAN ID filtering, received VLAN Tag (4
bytes) can be stripped off or preserved
PHY loop-back diagnostic capability
Supports Suspend Mode and Remote Wakeup via
Link-change, Magic packet, MS wakeup frame and
external wakeup pin
Integrates on-chip USB 2.0 transceiver and SIE
compliant to USB Spec 1.1 and 2.0
reduce
twisted
CPU
pair
loading,
crossover
including
detection
TM
USB 2.0 to 10/100M Fast Ethernet Controller
IPv4
and
and
1
*IEEE is a registered trademark of the Institute of Electrical and
*All other trademarks and registered trademark are the property of their
respective holders.
Electronic Engineers, Inc.
Supports embedded ID SRAM (online programmable
(for storing USB Descriptors)
memory for USB Device Descriptors ,etc) to save external
EEPROM
Descriptors and Adapter Configuration from EEPROM after
power-on initialization
single 3.3V power supply
source
package
Versatile External Media Interface
Advanced Power Management Features
Supports 256/512 bytes (93c56/93c66) of serial EEPROM
Integrates on-chip voltage regulator and only requires a
Single 25MHz clock input from either crystal or oscillator
Integrates on-chip power-on reset circuit
Operating over 0°C to 70°C or -40 to +85°C temperature
Small form factor with 64-pin LQFP RoHS compliant
Supports automatic loading of Ethernet ID, USB
range
Optional PHY power down during Suspend mode
Optional RMII interface in MAC mode allows
AX88772B to work with HomePNA and HomePlug
PHY
Optional Reverse-RMII interface in PHY mode allows
AX88772B
connections
Supports dynamic power management to reduce power
dissipation during idle or light traffic period
Supports very low power Wake-on-LAN (WOL) mode
when the system enters suspend mode and waits for
network event to awake it up
Supports Protocol Offloads (ARP & NS) for Windows 7
Networking Power Management
to
support
Released Date: 4/30/2010
http://www.asix.com.tw/
FAX: +886-3-579-9558
TEL: +886-3-579-9500
glueless
Product Brief
Low-Power
AX88772B
MAC-to-MAC
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ax88772b Summary of contents
Page 1
... SRAM for packet buffering. The AX88772B integrates an on-chip 10/100Mbps Ethernet PHY to simplify system design. The AX88772B provides an optional Multi-Function-Bus portion A and B (MFA and MFB) for external PHY or external MAC for different application purposes. The MFA/MFB can be a reduce-media-independent interface (RMII) for implementing HomePlug, HomePNA, etc ...
Page 2
... Block Diagram Application Diagram High-speed USB-to-LAN Applications ASIX Electronics Corporation 4F, No.8, Hsin Ann Rd., Hsinchu Science Park, Hsinchu, Taiwan 30078 USB 2.0 to 10/100M Fast Ethernet Controller 2 AX88772B Low-Power Released Date: 4/30/2010 TEL: +886-3-579-9500 FAX: +886-3-579-9558 http://www.asix.com.tw/ ...