3 Tests and Diagnostics 3.30 SETUP
8. Configuration
This option lets you set the device configuration.
All Devices BIOS sets all devices.
Setup by OS Initializes devices, which is needed to load an operating
system. Operating system initializes other devices.
NOTE: (1) When using installed OS, selecting “Setup by OS” is recommended.
(2) When executing test programs, be sure to select “ALL Devices”.
9. I/O port
(a) Parallel
This option sets the interrupt request level (IRQ) and I/O port base address for
the parallel port. When the “Parallel Port Mode” is set to Std. Bi-direct, the
options are:
LPT setting Interrupt level I/O address
LPT 1 7 378H
LPT 2 5 278H
LPT 3 7 3BCH
Not Used Disables port
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 Interrupt level I/O address DMA channel
LPT 1 7 378H 3 (Parallel port default)
LPT 2 5 278H 3
LPT 3 7 3BCH 3
Not Used Disables the port
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).
DMA = Channel 3 (Default)
O
PTIONS
For most printers, the port should be set to ECP. With some other parallel
devices, the setting should be Std. Bi-Direct.
3-100 [CONFIDENTIAL] TECRA M4 Maintenance Manual (960-521)