AM79C973

PRELIMINARY Am79C973/Am79C975 PCnet™-FAST III Single-Chip 10/100 Mbps PCI Ethernet Controller with Integrated PHY DISTINCTIVE CHARACTERISTICS s Single-chip PCI-to-Wire Fast Ethernet controller — 32-bit glueless PCI host interface — Supports PCI clock frequency from DC to 33 MHz independent of network clock — Supports network operation with PCI clock from 15 MHz to 33 MHz — High performance bus mastering architecture with integrated Direct Memory Access (DMA) Buffer Management Unit for low CPU and bus utilization — PCI specification revision 2.2 compliant — Supports PCI Subsystem/Subvendor ID/ Vendor ID programming through the EEPROM interface — Supports both PCI 5.0 V and 3.3 V signaling environments — Plug and Play compatible — Big endian and little endian byte alignments supported s Fully Integrated 10/100 Mbps Physical Layer Interface (PHY) — Conforms to IEEE 802.3 standard for 10BASE-T, 100BASE-TX, and 100BASE-FX interfaces — Integrated 10BASE-T transceiver with onchip filtering — Fully integrated MLT-3 encoder/decoder for 100BASE-TX — Provides a PECL interface for 100BASE-FX fiber implementations — Full-duplex capability for 10BASE-T and 100BASE-TX — IEEE 802.3u Auto-Negotiation between 10 Mbps and 100 Mbps, half- and full-duplex operation s Dual-speed CSMA/CD (10 Mbps and 100 Mbps) Media Access Controller (MAC) compliant with IEEE/ANSI 802.3 and Blue Book Ethernet standards s Supports PC98/PC99 and Wired for Management baseline specifications — Full OnNow support inclu...