4 unused address, 5 counter load & read registers – Measurement Computing PC104-DAS08 User Manual
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INTE = 1 enables interrupts (positive edge triggered) onto the PC bus IRQ selected
via the IRQ jumper on the PC104-DAS08.
INTE = 0 disables the passing of the interrupt detected at pin 10 to the PC bus.
IRQ is set to 1 every time an interrupt occurs. If you want to process successive
interrupts then set INTE = 1 as the last step in your interrupt service
routine.
MUX2 to MUX0. Set the current channel address by writing a binary coded number
between 0 and 7 to these three bits.
NOTE
Every write to this register sets the current A/D channel MUX
setting to the number in bits 2-0.
3.4 UNUSED ADDRESS
BASE ADDRESS + 3
This address is not used
3.5 COUNTER LOAD & READ REGISTERS
COUNTER 0
BASE ADDRESS + 4
D0
D1
D2
D3
D4
D5
D6
D7
0
1
2
3
4
5
6
7
COUNTER 1
BASE ADDRESS + 5
D0
D1
D2
D3
D4
D5
D6
D7
0
1
2
3
4
5
6
7
COUNTER 2
BASE ADDRESS + 6
D0
D1
D2
D3
D4
D5
D6
D7
0
1
2
3
4
5
6
7
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