Toshiba T2100 Series Maintenance Manual page 109

5. I/O Ports
This option controls the settings for the serial and parallel ports.
(a) Serial Port
This option allows you to set the COM level (COM1 or COM2) for the serial
port and PCMCIA slot.
The serial port interrupt request level (IRQ) and I/O port base address for
each COM level is shown below.
COM level
COM1
COM2
Not Used
NOTE: Do not assign the same interrupt request level and I/O address
to the serial port and PCMCIA card.
(b) Parallel Port
This option sets the address for the parallel port. The options are:
LPT1 (378H)
LPT2 (278H)
LPT3 (3BCH)
Not Used
When you select one of the above options, except for Not Used, a sub-
window similar to the one below appears to let you set the parallel port
mode. The options for this setting are Output (default) and Bi-Directional.
Mode
For most printers, the port should be set to Output. With some other parallel
devices, the setting should be Bi-Directional.
T2100 Series
Interrupt level
4
3
Sets the address to 378H (Default)
Sets the address to 278H
Sets the address to 3BCH
Disables the port
Option
=
I/O address
3F8h (Serial Port default)
2F8h
(Disables Port)
Output
3-59