1-12
System Overview
IDE Controller
The system includes a dual channel enhanced IDE 32 bit interface controller for
compatible IDE devices. 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 and supports ATA-66 synchronous DMA mode transfers.
The device controls:
!
PIO and DMA transfer modes
!
Mode 4 timings
!
Transfer rates up to 66 MB/s
!
Buffering for PCI/IDE burst transfers
!
Master/slave IDE mode
!
Up to two devices.
Keyboard and Mouse Controller
The keyboard and mouse controller is PS/2 compatible.
Network Controller
The system board includes two 10BASE-T/100BASE-TX network controllers based on
the Intel 82550 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
!
Programmable transmit threshold for improved bus utilization
!
Early receive interrupt for concurrent processing of receive data
!
On-chip counters for network management
!
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.
Summary of Contents for EXPRESS5800/120Lf
Page 1: ... U s e r s G u i d e EXPRESS5800 120Lf ...
Page 2: ...NEC ...
Page 3: ... U s e r s G u i d e EXPRESS5800 120Lf ...
Page 9: ...Contents vii ...
Page 10: ...viii Contents ...
Page 36: ...1 20 System Overview ...
Page 99: ...Upgrading Your System 4 13 Figure 4 9 Replacing the Real Time Clock Battery ...
Page 146: ...4 60 Upgrading Your System Figure 4 60 Installing a Power Supply ...
Page 170: ...5 24 Problem Solving ...
Page 171: ...A Technical Specifications Server Unit ...
Page 174: ...A 4 Technical Specifications ...
Page 175: ...B Connectors Overview External Device Connector Pin Information ...
Page 190: ...10 Glossary ...
Page 196: ...Index 4 ...
Page 197: ...xx ...
Page 198: ... 456 01575 N00 ...