Input/Output (I/O) Controller (O); I/O Controller Components; Support; I/O Controller - Intel MS440GX Product Manual

MS440GX Motherboard Product Guide

Input/Output (I/O) Controller (O)

The I/O controller handles the exchange of information between the processor and external devices
like the mouse and keyboard or a printer that are connected to the computer.
The National Semiconductor PC97307 I/O Controller is an ISA Plug and Play compatible
multifunction I/O device with components and features listed in the table below.
Table 5.

I/O Controller Components

Component
Serial Ports
Multimode Bidirectional Parallel Port
Diskette Drive Controller
8042A Compatible Keyboard and Mouse Controller
†
Support for IrDA and Consumer Infrared Compliant
Infrared Interface
By default, the I/O controller interfaces are automatically configured during boot up. The I/O
controller can also be manually configured in the Setup program.
22
Feature(s)
Two 16450/16550A software compatible UARTs
Internal send/receive 16-byte FIFO buffer
Four internal 8-bit DMA options for the UART with
SIR support (USI)
Standard mode: IBM and Centronics compatible
Enhanced parallel port (EPP) mode with BIOS and
driver support
High speed extended capabilities port (ECP) mode
DP8473 and N82077 compatible
16-byte FIFO buffer
PS/2 diagnostic-register support
High performance digital data separator (DDS)
PC-AT, PS/2, and 3 mode diskette drive mode

support