Intel BOXD845BGSE Product Specification - Page 31

Serial Ports, Parallel Port

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Product Description 1.9.1 Serial Ports The D845BG and D845PT boards have two serial port connectors. Serial port A is located on the back panel. Serial port B is accessible using a connector located near the main power connector. The serial ports' NS16C550-compatible UART supports data transfers at speeds up to 115.2 kbits/sec with BIOS support. The serial ports can be assigned as COM1 (3F8h), COM2 (2F8h), COM3 (3E8h), or COM4 (2E8h). For information about The location of the serial port A connector The signal names of the serial port A connector The location of the serial port B connector The signal names of the serial port B connector Refer to Figure 11, page 55 Table 21, page 57 Figure 16, page 71 Table 41, page 72 1.9.2 Parallel Port The 25-pin D-Sub parallel port connector is located on the back panel. In the BIOS Setup program, the parallel port can be set to the following modes: • Output only (PC AT†-compatible mode) • 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 Setting the parallel port's mode Refer to Figure 11, page 55 Table 20, page 56 Table 65, page 106 31

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Product Description
31
1.9.1
Serial Ports
The D845BG and D845PT boards have two serial port connectors.
Serial port A is located on the
back panel.
Serial port B is accessible using a connector located near the main power connector.
The serial ports
’
NS16C550-compatible UART supports data transfers at speeds up to
115.2 kbits/sec with BIOS support.
The serial ports can be assigned as COM1 (3F8h),
COM2 (2F8h), COM3 (3E8h), or COM4 (2E8h).
For information about
Refer to
The location of the serial port A connector
Figure 11, page 55
The signal names of the serial port A connector
Table 21, page 57
The location of the serial port B connector
Figure 16, page 71
The signal names of the serial port B connector
Table 41, page 72
1.9.2
Parallel Port
The 25-pin D-Sub parallel port connector is located on the back panel.
In the BIOS Setup
program, the parallel port can be set to the following modes:
•
Output only (PC AT
†
-compatible mode)
•
Bi-directional (PS/2 compatible)
•
EPP
•
ECP
For information about
Refer to
The location of the parallel port connector
Figure 11, page 55
The signal names of the parallel port connector
Table 20, page 56
Setting the parallel port
’
s mode
Table 65, page 106