3.29 SETUP | 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 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 |
|
|
(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.
LPT setting | Interrupt level | I/O address |
LPT 1 | 7 | 378H |
LPT 2 | 5 | 278H |
LPT 3 | 7 | 3BCH |
Not Used | Disables port |
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TECRA M1 Maintenance Manual |
