Toshiba Satellite A40 Series Maintenance Manual page 185

3 Tests and Diagnostics
9. I/O ports
This option controls settings for the parallel port.
NOTE: Do not assign the same interrupt request level and I/O address to the PC card.
This option sets the interrupt request level and I/O port base address for the
parallel port. When the parallel port mode is set to Std. Bi-direct, the options
are as follows:
LPT setting
LPT 1
LPT 2
LPT 3
Not Used
When the parallel 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 subwindow
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 in Peripheral. With some
other parallel devices, the setting should be Std. Bi-Direct.
3-64
Interrupt level
7
5
7
Interrupt level
7
5
7
OPTIONS
DMA = Channel 3 (Default)
I/O address
378H
278H
3BCH
Disables port
I/O address DMA channel
378H 3 (Default)
278H 3
3BCH 3
Disables port
Satellite A40 Maintenance Manual (960-458)
3.23 SETUP