Specification Sheet

SMAYS 10/100M Fast Ethernet Controller
Features
1. Single chip 10/100M Fast Ethernet controller
2. Single chip MII, single chip MII to Ethernet and USB Bridging controller in Dual-PHY mode (submitted for
US patent application)
3. USB Device Interface
a. Integrates on-chip USB 2.0 transceiver and SIE compliant to USB Spec 1.1 and 2.0
b. Supports USB Full and High Speed modes with Bus-Power or Self-Power capability
c. Supports 4 or 6 programmable endpoints on USB interface
d. High performance packet transfer rate over USB bus using proprietary burst transfer mechanism
(submitted for US patent application)
e. Supports USB to Ethernet bridging or vice versa in hardware
4. Fast Ethernet Controller
a. Integrates 10/100Mbps Fast Ethernet MAC/PHY
b. IEEE 802.3 10BASE-T/100BASE-TX compatible
c. Supports twisted pair crossover detection and auto-correction (HP Auto-MDIX)
d. Embedded 16KB SRAM for RX packet buffering and 8KB SRAM for TX packet buffering
e. Supports both Full-duplex with flow control and Half-duplex with backpressure operation
f. Supports 2 VLAN ID filtering, received VLAN Tag (4 bytes) can be stripped off or preserved
g. MAC/PHY loop-back diagnostic capability
5. Support Wake-on-LAN Function
a. Supports Suspend Mode and Remote Wakeup via Link-up, Magic packet, MS wakeup frame and external
pin
b. Optional PHY power down during Suspend Mode
6. Versatile External Media Interface
a. Optional MII interface in MAC mode allows Ethernet adapter to work with external 100BASE-FX
Ethernet PHY or HomePNA PHY
b. Optional Reverse-MII or Reverse-RMII interface in PHY mode allows AX88172A to work with external
HomePlug PHY or glueless MAC-to-MAC connections
c. Optional Reverse-MII interface in Dual-PHY mode allows Ethernet adapter to act as an Ethernet PHY or
USB 2.0 PHY for external MAC device that needs Ethernet and USB in system application
7. Supports 256/512 bytes (93c56/93c66) of serial EEPROM (for storing USB Descriptors)
8. Supports automatic loading of Ethernet ID, USB Descriptors and Adapter Configuration from EEPROM after
power-on initialization
9. Provides optional serial interface, I2C, SPI and UART
10. Integrates on-chip voltage regulator and only requires a single 3.3V power supply
11. 12MHz and 25Mhz clock input from either crystal or oscillator source
12. Integrates on-chip power-on reset circuit
13. Small form factor with 64-pin LQFP or 80-pin TQFP RoHS compliant package
14. Operating temperature range: 0°C to 70°C.