Toshiba Portege M100 Maintenance Manual - Page 175
Tests and Diagnostics, SETUP
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3 Tests and Diagnostics 3.23 SETUP 10. I/O ports This option controls settings for the serial and parallel ports and the sound system. NOTE: Do not assign the same interrupt request level and I/O address to the serial port and PC card. (a) Serial Use this option to set the COM level for the serial port. The serial port interrupt request level (IRQ) and I/O port base address for each COM level is shown below: COM level COM1 COM2 COM3 COM3 COM3 COM4 COM4 COM4 Not Used Interrupt level 4 3 4 5 7 3 5 7 I/O address 3F8H 2F8H 3E8H 3E8H 3E8H 2E8H 2E8H 2E8H Disables port (Serial port default) 3-66 PORTEGE M100 Maintenance Manual (960-452)
3
Tests and Diagnostics
3.23
SETUP
3-66
PORTEGE M100 Maintenance Manual (960-452)
10.
I/O ports
This option controls settings for the serial and parallel ports and the sound system.
NOTE:
Do not assign the same interrupt request level and I/O address to the serial port
and PC card.
(a)
Serial
Use this option to set the COM level for the serial port.
The serial port interrupt
request level (IRQ) and I/O port base address for each COM level is shown below:
COM level
Interrupt level
I/O address
COM1
4
3F8H
(Serial port default)
COM2
3
2F8H
COM3
4
3E8H
COM3
5
3E8H
COM3
7
3E8H
COM4
3
2E8H
COM4
5
2E8H
COM4
7
2E8H
Not Used
Disables port