DG33FB Datasheet, PDF (23/88 Pages) Intel Corporation – Technical Product Specification

Product Description
1.9 Legacy I/O Controller
The I/O controller provides the following features:
• One serial port header
• 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.
1.9.1 Serial Port Interface
The serial port header is located on the component side of the board. The serial port
supports data transfers at speeds up to 115.2 kbits/sec with BIOS support.
For information about
The location of the serial port header
The serial port header signal mapping
Refer to
Figure 10, page 42
Table 11, page 44
1.9.2 Parallel Port Interface
The parallel port connector is located on the back panel of the board. Use the BIOS
Setup program to set the parallel port mode.
For information about
The location of the parallel port connector
Refer to
Figure 9, page 41
1.9.3 Diskette Drive Interface
The I/O controller supports one diskette drive. Use the BIOS Setup program to
configure the diskette drive interface.
For information about
The location of the diskette drive connector
Refer to
Figure 10, page 42
1.9.4 PS/2 Keyboard and Mouse Interface
The PS/2 keyboard and mouse connectors are located on the back panel.
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.
For information about
The location of the keyboard and mouse connectors
Refer to
Figure 9, page 41
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