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S y s t e m m o t h e r b o a r d
PCI/IDE Peripheral Interface
I/O Features
3/8
LS700 HANDBOOK
The motherboard has a high-speed, 32-bit PCI/IDE
interface that supports the following:
♦
Up to four PCI/IDE hard drives on the PCI bus
♦
PIO Mode 3 and Mode 4 hard drives
♦
Logical block addressing (LBA) of hard drives larger
than 528 MB
♦
Extended Cylinder Head Sector (ECHS) translation
modes
♦
ATAPI devices (such as CD-ROMs)
The I/O controller integrates the functions for the serial
ports, parallel port, diskette drive, and keyboard. This
component provides:
♦
Multimode bidirectional parallel port:
◊ Standard mode: Centronics-compatible operation
◊ High-speed mode: support for enhanced capabilities
port (ECP) and enhanced parallel port (EPP)
♦
Two RS-232C (16550-compatible) 9-pin serial ports
♦
Integrated real-time clock with an accuracy of ±13
minutes/year at 25 °C and 5 V
♦
Integrated 8042-compatible keyboard controller
♦
Flexible IRQ and DMA mapping to support
Windows 95
♦
Support for an IrDA or Consumer IR compatible
infrared interface. The infrared interface supports data
transfer rates of up to 115 K baud with either half- or
full-duplex operation
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Troubleshooting
