MESA Electronic 4C24, Руководство пользователя

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CPU OPERATION
SET4CSIO
The format of the configuration file is very simple: each line of the configuration file consists of a
parameter name followed by a parameter value. If a parameter name is not specified in the
configuration file, that parameter will be set to the default value shown in the following table.
The parameter names, parameter values, and default parameter values are as follows:
PARAMETER PARAMETER VALUES DEFAULT
PP-ADDRESS OFF 278
278
378
3BC
The PP-ADDRESS parameter selects the location of the parallel port. The parallel port can be
disabled if desired by setting the parameter to 'OFF'
PP-MODE UNI-DIRECT UNI-DIRECT
BI-DIRECT
The PP-MODE parameter sets the operational mode of the parallel port. The default uni-
directional mode is the standard printer port mode. When set to the bi-directional mode, bit 5 of the
printer control port determines the signal direction on the printer data lines. A low on bit 5 sets the
lines to the output direction, a high on bit 5 sets the data lines to the input direction.
COM3&4-ADDRESS 338-238 338-238
3E8-2E8
2E8-2E0
220-228
The COM3&4-ADDRESS parameter allows selection of the locations of serial ports COM3 and
COM4. These port addresses will not be used unless the primary or secondary serial port has COM3
or COM4 selected as an address.
Note that 3E8 and 2E8 are the most commonly used locations for COM3 and COM4
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4C24 CPU USER'S MANUAL