RTL8029AS中文资料ETC数据手册PDF规格书

[Realtek]

GENERAL DESCRIPTION

The RTL8029AS controller is an NE2000 compatible Ethernet Controller for PCI interface. Taking the benefit of PCIs high throughput rate, the RTL8029AS controller offers a 32-bit data path to highly improve the data transfer rate compared with traditional Ethernet card on ISA, EISA and MCA bus. Due to the additional benefits of PCI, the RTL8029AS controller provides a low maintaining cost network environment without usage barriers. The Auto-configuration function of PCI can relieve the users from pains of taking care the system resource conflict. The RTL8029AS controller also supports full-duplex and power down features. With three levels power down control features, the RTL8029AS controller is made to be an ideal choice of the network device for a GREEN PCI PC system. The full-duplex function enables simultaneously transmission and reception on the twisted-pair link to a full-duplex Ethernet switching hub. This feature not only increases the channel bandwidth from 10 to 20 Mbps but also avoids the performance degrading problem due to the channel contention characteristics of the Ethernet CSMA/CD protocol.

FEATURES

○ 100-pin PQFP

* Pin-to-pin compatible with RTL8029

* 16K byte SRAM built in

* Compliance to PCI V2.1

* Programmable PCI Vendor ID and Sub Vendor ID

○ PCI local bus single-chip Ethernet controller

○ Compliant to Ethernet II and IEEE802.3 10Base5, 10Base2, 10BaseT

○ Supports Full-Duplex Ethernet function to double channel bandwidth

* Support Flow Control(802.3x) to improve network performance in full-duplex ○ode

○ Supports three level power down modes:

* Sleep

* Power down with internal clock running

* Power down with internal clock halted

○ Built-in data prefetch function to improve performance

○ Built-in 10BaseT transceiver

○ Provides auto-detect capability between integrated 10BaseT transceiver and Attachment Unit Interface (AUI)

○ Supports auto polarity correction for 10BaseT

○ Supports Boot ROM function for PCI bus

○ Supports 8K, 16K and 32K Boot ROM size

○ Use 9346 (64*16-bit EEPROM) to store resource configurations and ID parameters

○ Capable of programming blank 9346 on board for manufacturing convenience

○ Supports 4 diagnostic LED pins with programmable outputs