AM79C970

PRELIMINARY Am79C970 PCnetTM-PCI Single-Chip Ethernet Controller for PCI Local Bus DISTINCTIVE CHARACTERISTICS s Single-chip Ethernet controller for the Peripheral Component Interconnect (PCI) local bus s Supports ISO 8802-3 (IEEE/ANSI 802.3) and Ethernet Standards s Direct interface to the PCI local bus s Compliant to PCI local bus specification (Revision 2.0) s Software compatible with AMD’s Am7990 LANCE, Am79C90 C-LANCE, Am79C960 PCnet-ISA, Am79C961 PCnet-ISA+, Am79C965 PCnet-32, and Am79C900 ILACCTM register and descriptor architecture s Compatible with Am2100/Am1500T and Novell® NE2100/NE1500 driver software s High-performance Bus Master architecture with integrated DMA Buffer Management Unit for low CPU and bus utilization s Big endian byte alignment supported s Single +5 V power supply operation s Low-power, CMOS design with sleep modes allows reduced power consumption for critical battery powered applications and Green PCs s MicrowireTM EEPROM interface supports jumperless design s Individual 136-byte transmit and 128-byte receive FIFOs provide frame buffering for increased system latency, and support the following features: Advanced Micro Devices s s s s s s s s s s — Automatic retransmission with no FIFO reload — Automatic receive stripping and transmit padding (individually programmable) — Automatic runt packet rejection — Automatic deletion of received collision frames Look-Ahead Packet Processing (LAPP) concept allows protocol analysis to begin before end...