Advantech PCM-3780 Interrupt Clear Register, Direction Control Register, O Direction Control Bit

C.10		Interrupt Clear Register
Write any data to these two bytes to clear the interrupt.
Base			PCM-3780 Register Format
Address
			15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
+ HEX
24h	W		Interrupt Clear
	R

C.11	I/O Direction Control Register
Base		PCM-3780 Register Format
Address +		15 14 13 12 11 10 9 8 7 6 5 4	3	2	1	0
HEX
2Ch	W	I/O Direction Control Register
		PA	PCH		PB	PCL
	R	I/O Direction Control Register
		PA	PCH		PB	PCL

1.I/O Direction Control Bit:

0= Output

1= Input

C.12 Port A/B/C Interrupt Status Register

Base

PCM-3780 Register Format

Address

15

14

13

12

11

10 9

8

7

6

5

4

3

2

1

0

+ HEX

2Eh

W

Port A Interrupt Status Register

N/A

R

Port A Interrupt Status Register

Bit7

Bit6

Bit5

Bit4

Bit3

Bit2

Bit1

Bit0

30h

W

Port B Interrupt Status Register

N/A

R

Port B Interrupt Status Register

Bit7

Bit6

Bit5

Bit4

Bit3

Bit2

Bit1

Bit0

32h

W

Port C Interrupt Status Register

N/A

R

Port C Interrupt Status Register

Bit7

Bit6

Bit5

Bit4

Bit3

Bit2

Bit1

Bit0

1.Bit7 to Bit0: Port A/B/C Interrupt Status Register

0= No interrupt occurred

1= Interrupt occurred

PCM-3780 User Manual 40