Intel Vig390s User Manual

Page 22

Vig390s Motherboard Manual V1.0

Parallel Port

The connector for the multimode bi-directional parallel port is a 25-pin D-Sub
connector located on the back panel. In the Setup program, the parallel port can be
configured for the following:

• Compatible

(standard

mode).

• Bi-directional (PS/2 compatible).
• Extended

Parallel

Port

(EPP).

• Enhanced Capabilities Port (ECP).

Floppy Controller

The I/O controller is software compatible with the N82077 floppy drive controllers
and supports both PC-AT and PS/2 modes. In the Setup program, the floppy
interface can be configured for the following floppy drive capacities and sizes:

• 360 KB, 5.25-inch
• 1.2 MB, 5.25-inch

• 720 KB, 3.5-inch
• 1.2 MB, 3.5-inch (driver required)

• 1.25/1.44 MB, 3.5-inch (default configuration)
• 2.88 MB, 3.5-inch

PS/2 Keyboard and Mouse Interface

PS/2 keyboard and mouse connectors are located on the back panel. The +5 V lines
to these connectors are protected with a PolySwitch circuit that, like a self-healing
fuse, re-establishes the connection after an over-current condition is removed.

The keyboard controller contains the AMI Megakey keyboard and mouse controller
code, provides the keyboard and mouse control functions, and supports password
protection for power on/reset. A power on/reset password can be specified in Setup.
The keyboard controller also supports the hot-key sequence for a
software reset. This key sequence resets the computer’s software by jumping to the
beginning of the BIOS code and running the Power-On Self Test (POST).