100/10Mbps Ethernet Controller

W89C840AF is a highly integrated Ethernet LAN controller for both 100BaseT and 10BaseT Ethernet. It provides a host bus interface complying with the PCI local bus specification revision 2.1, and the MII interface complying with the IEEE802.3u standard for easily implementing an Ethernet LAN adapter. The built-in 2K bytes transmit FIFO and 4K bytes receive FIFO, controlled by the on-chip bus master, are designed for improving network performance and reducing the host bus utilitzation.

特性 Features

? Complies with IEEE 802.3, 802.3u, ANSI 8802-3 and Ethernet standards

? Supports PCI bus master mode for DMA operation, fully complying with PCI 2.1 standard

? Compliant with APCI R1.0, PCI power management R1.0 and Network device Class Power

management Reference specification V1.0a

? Supports remote wakeup function

? Both half duplex and full duplex available for 10/100M operation

? Flexible data structure for host compatibility and system performance

? Supports 25 to 33 Mhz PCI clock speed

? Supports full MII management function

? Provides EEPROM and flash memory on-board programming function

? Supports both big and little endian byte ordering for descriptor and buffer

? Flexible address filtering modes

-- 64-bit hash-table and one perfect address

-- all multicast and promiscuous

? A boot ROM interface, capable of supporting up to 256KB

? Supports automatic loading configuration register

? Internal and external loopback mode for diagnostic

? Single 5 volt power supply

? 128 pins PQFP package