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Omega Engineering OME-PIO-D96 User Manual

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3.3.6    Interrupt Polarity Control Register 
 
(Read/Write): wBase+0x2A 
Bit 7 
Bit 6 
Bit 5 
Bit 4 
Bit 3 
Bit 2 
Bit 1 
Bit 0 
0 0 0 0 INV3 
INV2 
INV1 
INV0 
Note. Refer to Sec. 3.1 for more information about wBase. 
 
INV0=1Æ select the non-inverted signal from P2C0 
INV0=0Æ select the inverted signal from P2C0 
 
outportb(wBase+0x2a,0x0f);  /* select the non-inverted input P2/5/8/11C0    */ 
outportb(wBase+0x2a,0x00); /* select the inverted input of P2/5/8/11C0       */ 
 
outportb(wBase+0x2a,0x0e); /* select the inverted input of P2C0                  */ 
 
 
 
 
 
 
/* select the non-inverted input P5/8/11C0       */ 
 
outportb(wBase+0x2a,0x0c); /* select the inverted input of P2/5C0               */ 
 
 
 
 
 
 
/* select the non-inverted input P8/11C0          */ 
 
Refer to Sec. 2.5 for more information. 
Refer to DEMO5.C for more information. 
 
 
 
 
 
 
 
 
 
 
 
 
 
OME-PIO-D96 User Manual (Ver.1.1, Mar/2003)    
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