Toshiba Portege M100 Maintenance Manual page 176

3.23 SETUP
(b) Parallel
This option sets the interrupt request level (IRQ) and I/O port base address for the
parallel port. When the Printer Port Mode is set to Std. Bi-direct, the options are:
LPT setting
LPT 1
LPT 2
LPT 3
Not Used
When the Printer Port Mode (see settings below) is set to ECP, the DMA channel
can also be set to 1 or 3. The default is 3.
LPT setting
LPT 1
LPT 2
LPT 3
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 DMA. The options for this setting
are Channel 1and Channel 3 (Default).
For most printers, the port should be set to ECP. With some other parallel devices,
the setting should be Std. Bi-Direct.
PORTEGE M100 Maintenance Manual (960-452)
Interrupt level
7
5
7
Interrupt level
7
5
7
OPTIONS
DMA = Channel 3
3 Tests and Diagnostics
I/O address
378H
278H
3BCH
Disables port
I/O address DMA channel
378H 3 (Parallel port default)
278H 3
3BCH 3
Disables port
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