简介： 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 detection and 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 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 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 80-pin TQFP RoHS compliant package Operating temperature range: 0℃ to 70℃