Measurement-computing PC104-DAS08 Manual do Utilizador descarregar pdf (Página 15)

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

D0D1D2D3D4D5D6D7

01234567

COUNTER 1

BASE ADDRESS + 5

D0D1D2D3D4D5D6D7

01234567

COUNTER 2

BASE ADDRESS + 6

D0D1D2D3D4D5D6D7

01234567

1 2 ... 10 11 12 13 14 15 16 17 18 19 20 ... 23 24

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Measurement-computing PC104-DAS08 Manual do Utilizador Página 15