Omega OME-PIO-D144 manual Aux Status Register, Interrupt Polarity Control Register

3.3.5Aux Status Register

(Read/Write): wBase+7

Bit 7	Bit 6	Bit 5	Bit 4	Bit 3	Bit 2	Bit 1	Bit 0
Aux7	Aux6	Aux5	Aux4	Aux3	Aux2	Aux1	Aux0

Note. Refer to Sec. 3.1 for more information about wBase.

Aux0=CN_PC0, Aux1=CN1_PC1, Aux2=CN1_PC2, CN1_Aux3=PC3, Aux7~4=Aux-ID. Refer to DEMO5.C for more information. The Aux0~3 are used as interrupt source. The interrupt service routine has to read this register for interrupt source identification. Refer to Sec. 2.5 for more information.

3.3.6Interrupt 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	CN1_PC3	CN1_PC2	CN1_PC1	CN1_PC0

Note. Refer to Sec. 3.1 for more information about wBase.

For Example:

CN1_PC0=0Æ select the non-inverted signal from PC0 of CN1_PC. CN1_PC0=1Æ select the inverted signal from PC0 of CN1_PC.

outp(wBase+0x2a,0x0f);	/* select the non-inverted input CN1_PC0/1/2/3 */
outp(wBase+0x2a,0);	/* select the inverted input of CN1_PC0/1/2/3	*/
outp(wBase+0x2a,0x0e);	/* select the inverted input of CN1_PC0	*/
/* select the non-inverted input CN1_PC1/2/3		*/
outp(wBase+0x2a,0x03);	/* select the inverted input of CN1_PC0/1	*/
/* select the non-inverted input CN1_PC2/3		*/

Refer to Sec. 2.5 for more information.

Refer to DEMO5.C for more information.

OME-PIO-D144 User’s Manual (Ver.2.1, Sep/2001) ---- 30