I/O Controller; Serial Port; Parallel Port - Intel D850GB Technical Product Specification

Intel Desktop Board D850GB Technical Product Specification

1.7 I/O Controller

The SMSC LPC47M102 I/O controller provides the following features:
•
3.3 V operation
•
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 1.2 MB or 1.44 MB diskette drive
•
Intelligent power management, including a programmable wake up event interface
•
PCI power management support
•
One fan tachometer input
The BIOS Setup program provides configuration options for the I/O controller.
For information about
SMSC LPC47M102 I/O controller

1.7.1 Serial Port

The D850GB board has one serial port connector on the back panel. The serial port's NS16C550-
compatible UART supports data transfers at speeds up to 115.2 kbits/sec with BIOS support. The
serial port can be assigned as COM1 (3F8h), COM2 (2F8h), COM3 (3E8h), or COM4 (2E8h).
For information about
The location of the serial port connector
The signal names of the serial port connector

1.7.2 Parallel Port

The connector for the multimode bidirectional parallel port is a 25-pin D-Sub connector located on
the back panel. In the BIOS Setup program, the parallel port can be configured for the following:
•
Output only (PC AT
•
Bi-directional (PS/2 compatible)
•
EPP
•
ECP
For information about
The location of the parallel port connector
The signal names of the parallel port connector
26
†
-compatible mode)
Refer to
http://www.smsc.com
Refer to
Figure 8, page 50
Table 20, page 52
Refer to
Figure 8, page 50
Table 19, page 51