I/O Controller; Serial Ports; Parallel Port; Diskette Drive Controller - Intel D845PEMY Specification

1.8 I/O Controller

The I/O controller provides the following features:
•
One serial port
•
One parallel port with Extended Capabilities Port (ECP) and Enhanced Parallel Port
(EPP) support
•
Serial IRQ interface compatible with serialized IRQ support for PCI systems
•
PS/2-style mouse and keyboard interfaces
•
Interface for one 1.44 MB or 2.88 MB diskette drive
•
Intelligent power management, including a programmable wake-up event interface
•
PCI power management support
The BIOS Setup program provides configuration options for the I/O controller.
For information about
National Semiconductor I/O controller

1.8.1 Serial Ports

The Desktop Board has two serial port connectors. Serial port A is located on the back panel.
Serial port B (optional) is accessible using a connector on the component side of the Desktop
Board. The serial ports support data transfers at speeds up to 115.2 kbits/sec with BIOS support.
For information about
The location of the serial port A connector
The location of the optional serial port B connector

1.8.2 Parallel Port

The 25-pin D-Sub parallel port connector is located on the back panel. Use the BIOS Setup
program to set the parallel port mode.

1.8.3 Diskette Drive Controller

The I/O controller supports one diskette drive. Use the BIOS Setup program to configure the
diskette drive interface.

1.8.4 Keyboard and Mouse Interface

PS/2 keyboard and mouse connectors are located on the back panel.
INTEGRATOR'S NOTE
The keyboard is supported in the bottom PS/2 connector and the mouse is supported in the top PS/2
connector. Power to the computer should be turned off before a keyboard or mouse is connected or
disconnected.
Product Description
Refer to
http://www.national.com
Refer to
Figure 4, page 38
Figure 7, page 44
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