General Description
The DM9000BI is a fully integrated and cost-effective Industrial-grade low pin count single chip Fast
Ethernet controller with a general processor interface, a 10/100M PHY and 4K Dword SRAM. It is designed with low power and high performance process interface that support 3.3V with 5V IO tolerance.

FEATUREs
■ Supports processor interface: byte/word of I/O command to internal memory data operation
■ Integrated 10/100M transceiver With HP Auto-MDIX
■ Supports back pressure mode for half-duplex
■ IEEE802.3x flow control for full-duplex mode
■ Supports wakeup frame, link status change and magic packet events for remote wake up
■ Support 100M Fiber interface.
■ Integrated 16K Byte SRAM
■ Build in 3.3V to 1.8V regulator
■ Supports IP/TCP/UDP checksum generation and checking
■ Supports early Transmit
■ Supports automatically load vendor ID and 
product ID from EEPROM 
■ Optional EEPROM configuration
■ Very low power consumption mode:
   – Power reduced mode (cable detection)
   – Power down mode
   – Selectable TX drivers for 1:1 or 1.25:1 transformers for additional power reduction.
■ Compatible with 3.3V and 5.0V tolerant I/O
■ DSP architecture PHY Transceiver.
■ Supports Industrial-grade: -40 °C.~ +85°C
■ 48-pin LQFP, 0.18 um process