Aux Status Register; Interrupt Polarity Control Register - ICP DAS USA PIO-D64 User Manual

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3.3.5 Aux Status Register

(Read/Write): wBase+7
Bit 7 Bit 6 Bit 5
Aux7 Aux6 Aux5
Note. Refer to Sec. 3.1 for more information about wBase.
Aux0=INT_CHAN_0, Aux1=INT_CHAN_1, Aux2=INT_CHAN_2,
Aux3=INT_CHAN_3, Aux7~4=Aux-ID. The Aux 0~3 are used as interrupt sources.
The interrupt service routine has to read this register for interrupt source
identification. Refer to Sec. 2.7 for more information.

3.3.6 Interrupt Polarity Control Register

(Read/Write): wBase+0x2A
Bit 7 Bit 6 Bit 5
0 0 0
Note. Refer to Sec. 3.1 for more information about wBase.
INV0/1/2=0 select the invert signal from INT_CHAN_0/1/2
INV0/1/2=1 select the non-invert signal from INT_CHAN_0/1/2
outportb(wBase+0x2a,0);
outportb(wBase+0x2a,0x0f);
outportb(wBase+0x2a,0x0e);
outportb(wBase+0x2a,0x0c);
Refer to DEMO6.C of DOS for more information.
PIO-D64/PIO-D64U User's Manual ( Ver.1.6, Mar. 2015, PMH-007-16 ) ----- 33
Bit 4 Bit 3 Bit 2
Aux4 Aux3 Aux2
Bit 4 Bit 3 Bit 2
0 0 INV2
/* select the invert input from all 3 channels
/* select the non-invert input from all 3 channels */
/* select the inverted input of INT_CHAN_0
/* select the non-inverted input from the others
/* select the inverted input of INT_CHAN_0 &
/*
/* select the non-inverted input from the others
Bit 1 Bit 0
Aux1 Aux0
Bit 1 Bit 0
INV1 INV0
INT_CHAN_1
*/
*/
*/
*/
*/
*/