AR-B2002 User’s Guide
7 DIP Switch8 Yes No 0 / 1
Interrupt & Timer Enable Register (08h & 09h)
Bit Field Description Software
Readable
Software
Writable Value after
Reset
0 Port A Interrupt Enable bit. ‘0’ = No support Interrupt from
Port A as Input; ‘1’ = Support Interrupt from Port A as Input Yes Yes 0
1 Port B Interrupt Enable bit. ‘0’ = No support Interrupt from
Port B as Input; ‘1’ = Support Interrupt from Port B as Input Ye s Yes 0
2 Port C Interrupt Enable bit. ‘0’ = No support Interrupt from
Port C as Input; ‘1’ = Support Interrupt from Port C as Input Yes Yes 0
3 Port D Interrupt Enable bit. ‘0’ = No support Interrupt from
Port D as Input; ‘1’ = Support Interrupt from Port D as Input
Yes Ye s 0
4 Port E Interrupt Enable bit. ‘0’ = No support Interrupt from
Port E as Input; ‘1’ = Support Interrupt from Port E as Input
Yes Ye s 0
5 Port F Interrupt Enable bit. ‘0’ = No support Interrupt from
Port F as Input; ‘1’ = Support Interrupt from Port F as Input
Yes Ye s 0
6 Port G Interrupt Enable bit. ‘0’ = No support Interrupt from
Port G as Input; ‘1’ = Support Interrupt from Port G as Input
Yes Ye s 0
7 Port H Interrupt Enable bit. ‘0’ = No support Interrupt from
Port H as Input; ‘1’ = Support Interrupt from Port H as Input
Yes Ye s 0
8 Port I Interrupt Enable bit. ‘0’ = No support Interrupt from Port
I as Input; ‘1’ = Support Interrupt from Port I as Input
Yes Ye s 0
9 Port J Interrupt Enable bit. ‘0’ = No support Interrupt from
Port J as Input; ‘1’ = Support Interrupt from Port J as Input
Yes Ye s 0
10 Port K Interrupt Enable bit. ‘0’ = No support Interrupt from
Port K as Input; ‘1’ = Support Interrupt from Port K as Input
Yes Ye s 0
11 Port L Interrupt Enable bit. ‘0’ = No support Interrupt from
Port L as Input; ‘1’ = Support Interrupt from Port L as Input
Yes Ye s 0
12 Timer-A Enable bit. ‘0’ = Timer-A disable; ‘1’ = Timer-A
Enable
Yes Ye s 0
13 Timer-B Enable bit. ‘0’ = Timer-B disable; ‘1’ = Timer-B
Enable
Yes Ye s 0
14 Timer-C Enable bit. ‘0’ = Timer-C disable; ‘1’ = Timer-C
Enable
Yes Ye s 0
15 Timer-D Enable bit. ‘0’ = Timer-D disable; ‘1’ = Timer-D
Enable
Yes Ye s 0
Interrupt Source Register (0Ch & 0Dh)
Bit Field Description Software
Readable
Software
Writable Value after
Reset
0
Interrupt Status in Port A. 0 = No Interrupt, 1 = Interrupt
active. To clear this bit, must be wrote any data to Port A as
Input
Yes N o 0
1
Interrupt Status in Port B. 0 = No Interrupt, 1 = Interrupt
active. To clear this bit, must be wrote any data to Port B as
Input
Yes N o 0
2
Interrupt Status in Port C. 0 = No Interrupt, 1 = Interrupt
active. To clear this bit, must be wrote any data to Port C as
Input
Yes N o 0
3
Interrupt Status in Port D. 0 = No Interrupt, 1 = Interrupt
active. To clear this bit, must be wrote any data to Port D as
Input
Yes N o 0
4
Interrupt Status in Port E. 0 = No Interrupt, 1 = Interrupt
active. To clear this bit, must be wrote any data to Port E as
Input
Yes N o 0
5
Interrupt Status in Port F. 0 = No Interrupt, 1 = Interrupt
active. To clear this bit, must be wrote any data to Port F as
Input
Yes N o 0
AR-B2002 PCI I/O board with discrete I/O, battery backup SRAM,
Timer, power off intrusion event logger and Protect-U
18/45