MiTAC 7521 PLUS/N service manual 7521Plus / N N/B MAINTENANCE, SiS900 Features

7521Plus / N N/B MAINTENANCE

SiS900 Features

Integrated Fast Ethernet controller and 10/100 megabit per second (Mbps) Physical Layer Transceivers for the PCI local bus

PCI specification revision 2.1 compliant 32-bit glueless PCI host interface Plug and Play compatible

Supports PCI clock frequency from DC to 33 MHz independent of network clock Supports network operation with PCI clock from 25Mhz to 33Mhz

Supports both +3.3v and +5v PCI signaling

High-performance 32-bit PCI bus master architecture with integrated Direct Memory Access (DMA) Controller for low CPU and bus utilization

Supports an unlimited PCI burst length

Supports big endian and little endian byte alignments

Supports PCI Device ID, Vendor ID/Subsystem ID, Subsystem Vendor ID programming through the EEPROM interface Implements optional PCI 3.3v auxiliary power source 3.3Vaux pin and optional PCI power management event (PME#) pin IEEE 802.3 and 802.3u standard compatible

IEEE 802.3u Auto Negotiation and Parallel detection for automatic speed selection Full duplex and half duplex mode for both 10 and 100 Mbps.

Fully compliant ANSI X3.263 TP-PMD physical sub-layer which includes adaptive equalization and Baseline Wander compensation.

Automatic Jam and IEEE 802.3x Auto-Negotiation for flow control Single access to complete PHY register set

Built-in waveform shaping requires no external filters Single 25Mhz clock for 10 and 100 Mbps operation.

34