Ide controller, Keyboard and mouse controller, Network controller – Intel Express 5800/120Ld User Manual

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1-12 System Overview

IDE Controller

The system includes a single channel enhanced IDE 32 bit interface controller for
intelligent disk drives with disk controller electronics onboard. The controller has a
connector located on the system board that supports a master and a slave device. The
IDE controller provides support for the internally mounted CD-ROM.

The device controls:

!

PIO and DMA transfer modes

!

Mode 4 timings

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Transfer rates up to 33 MB/s

!

Buffering for PCI/IDE burst transfers

!

Master/slave IDE mode

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Up to two devices.

Keyboard and Mouse Controller

The keyboard and mouse controller is PS/2 compatible.

Network Controller

The system board includes a 10BASE-T/100BASE-TX network controller based on the
Intel 82559 Fast Ethernet PCI Bus Controller. As a PCI bus master, the controller can
burst data at up to 132 MB/sec. The controller contains two receive and transmit FIFO
buffers that prevent data overruns or underruns while waiting for access to the PCI bus.
The controller has the following:

!

32-bit PCI bus master interface (direct drive of bus), compatible with PCI Bus
Specification, Revision 2.1

!

Chained memory structure with improved dynamic transmit chaining for
enhanced performance

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Programmable transmit threshold for improved bus utilization

!

Early receive interrupt for concurrent processing of receive data

!

On-chip counters for network management

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Autodetect and autoswitching for 10 or 100 Mbps network speeds

!

Support for both 10 Mbps and 100 Mbps networks, capable of full or half
duplex, with back-to-back transmit at 100 Mbps.

!

Support for Wake On LAN.

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