RTL8019AS-LF Full-duplex Ethernet controller, Plug & Play function , PQFP

SA Full-Duplex Ethernet Controller with Plug and Play Function

General Description The RTL8019AS integrates the RTL8019 and 16K-byte SRAM in a single chip. It is designed not only to provide more friendly functions but also to save the effort of SRAM sourcing and inventory. Most of the design spec. inherit from RTL8019. Thus, this document mainly describes those spec. different from RTL8019.

Features: - 100-pin PQFP - 16K byte SRAM built in - Compatible with Ethernet II and IEEE802.3 10Base5, 10Base2, 10BaseT - Supports UTP, AUI & BNC auto-detect - Software compatible with NE2000 on both 8 and 16-bit slots - Supports jumper, jumperless and PnP modes - Supports PnP auto detect mode - Supports Full-Duplex Ethernet function to double channel bandwidth - Supports three level power down modes:

- Sleep

- Power down with internal clock running clock

- Power down with internal halted - Built-in data prefetch function to improve performance - Supports auto polarity correction for 10BaseT - Support 8 IRQ lines - Supports IO address fully decode mode - Supports 16K, 32K, 64K and 16K-page mode access to BROM (up to 256 pages with 16K bytes/page), and Flash memory read/write - Supports BROM disable command to release memory after remote boot - Capable of programming blank 9346 on board for manufacturing convenience - Support 4 diagnostic LED pins with programmable outputs - Improves the blinking problem of CRS LED when the cable is not connected