AM79C90 Datasheet - Advanced Micro Devices

AM79C90 CMOS Local Area Network Controller for Ethernet (C-LANCE)

The Am79C90 CMOS Local Area Network Controller for Ethernet (C-LANCE) is a 48-pin VLSI device designed to greatly simplify interfacing a microcomputer or minicomputer to an IEEE 802.3/Ethernet Local Area Network. The C-LANCE, in conjunction with the Am7992B Serial Interface Adapter (SIA), Am7996 or .

PRELIMINARY Am79C90 CMOS Local Area Network Controller for Ethernet (C-LANCE) DISTINCTIVE CHARACTERISTICS s Compatible with Ethernet and IEEE 802.3 10BASE-5 Type A, and 10BASE-2 Type B, “Cheapernet,” 10BASE-T s Easily interfaced with 80x86, 680x0, Am29000®, Z8000™ microprocessors s On-board DMA and buffer management, 64-byte Receive, 48-byte Transmit FIFOs s 24-bit-wide linear addressing (Bus Master Mode) s Network and packet error reporting s Back-to-back packet reception with as little as 0.5.

AM79C90 Features

* a collision is occurring o

AM79C90_AdvancedMicroDevices.pdf