Ide Peripheral Interface; System I/O - NEC POWERMATE PRO150 Manual

IDE Peripheral Interface

The onboard 82450 PCI chipset provides a high speed, 32-bit PCI/IDE
interface. The PCI/IDE interface supports:
Up to four PCI/IDE hard drives on the PCI bus
Enhanced Mode 3 and Mode 4 support
Logical block addressing (LBA) of hard drives larger than 528 MB
Extended Cylinder Head Sector (ECHS) translation modes
ATAPI devices (such as CD-ROMs) on both IDE interfaces

System I/O

The onboard I/O controller (PC87306B) integrates the functions for the
serial ports, parallel port, diskette drives, and keyboard. This component
provides:
Multimode bi-directional parallel port
Standard mode: Centronics-compatible operation
High-speed mode: support for enhanced capabilities port (ECP) and
enhanced parallel port (EPP)
Two RS-232C 116550A-compatible 9-pin serial ports
Integrated real time clock with an accuracy of ±13 minutes/year
A 242-byte battery-backed CMOS RAM
Integrated 8042 compatible keyboard controller
Flexible IRQ and DMA mapping to support Windows 95
Support for an IrDA-compatible infrared interface. The infrared
interface supports data transfer rates of up to 115 Kbaud with either
half- or full-duplex operation. In full-duplex mode, both the transmitter
and receiver are enabled simultaneously for higher throughput.
Industry standard diskette drive controller that supports 720 KB,
1.44 MB, and 2.88 MB 3.5-inch drives (at 135 tracks per inch); and
360 KB and 1.2 MB 5.25-inch drives
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Product Description