General Description

The DM9000 is a fully integrated and cost-effective single chip Fast Ethernet MAC controller with a general processor interface, a 10/100M PHY and 4K Dword SRAM. It is designed with low power and high performance process that support 3.3V with 5V tolerance.

特性 Features

■ Supports processor interface: byte/word/dword of I/O command to internal memory data operation

■ Integrated 10/100M transceiver

■ Supports MII and reverses MII interface

■ Supports back pressure mode for half-duplex mode flow control

■ IEEE802.3x flow control for full-duplex mode

■ Supports wakeup frame, link status change and magic packet events for remote wake up

■ Integrated 4K dword SRAM

■ Supports automatically load vendor ID and product ID from EEPROM

■Supports 4 GPIO pins

■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

■100-pin LQFP with CMOS process