Functional Description
CPB902
C P B 9 0 2 U s e r M a n u a l
29
© 2 0 0 8 F a s t w e l v . 1 . 5 b E
Port
(hex)
Bit
Read
Write
Value
Comment
0
310.6=0
no
1
Matrix keypad row 0:
0 – No key pressed
1 – Key pressed
0
0
yes
310.6=1
yes
1
Write: Set status of the KEY_C2 discrete I/O channel trigger
(gray indicates trigger status after reset)
Read: KEY_C2 discrete I/O channel status
0
310.6=0
no
1
Matrix keypad row 1:
0 – No key pressed
1 – Key pressed
0
1
yes
310.6=1
yes
1
Write: Set status of the KEY_C3 discrete I/O channel trigger
(gray indicates trigger status after reset)
Read: KEY_C3 discrete I/O channel status
0
310.6=0
no
1
Matrix keypad row 2:
0 – No key pressed
1 – Key pressed
0
2
yes
310.6=1
yes
1
Write: Set status of the KEY_C4 discrete I/O channel trigger
(gray indicates trigger status after reset)
Read: KEY_C4 discrete I/O channel status
0
310.6=0
no
1
Matrix keypad row 3:
0 – No key pressed
1 – Key pressed
0
3
yes
310.6=1
yes
1
Write: Set status of the KEY_C5 discrete I/O channel trigger
(gray indicates trigger status after reset)
Read: KEY_C5 discrete I/O channel status
0
310.6=0
no
1
Matrix keypad row 4:
0 – No key pressed
1 – Key pressed
0
4
yes
310.6=1
no
1
KEY_R0 discrete I/O channel trigger status
0
310.6=0
no
1
Matrix keypad row 5:
0 – No key pressed
1 – Key pressed
0
5
yes
310.6=1
no
1
KEY_R1 discrete I/O channel trigger status
310.6=0
no
0
–
0
6
yes
310.6=1
no
1
KEY_R2 discrete I/O channel trigger status
310.6=0
no
0
–
0
316
7
yes
310.6=1
no
1
KEY_R3 discrete I/O channel trigger status
0
IRQ1 source selection: SIO_IRQ1
0
yes
yes
1
IRQ1 source selection: KBD_IRQ (matrix keypad)
0
IRQ5 source selection: FBUS_IRQ (FBUS unit)
1
yes
yes
1
IRQ5 source selection: PC104_IRQ5
0
IRQ6 source selection: SIO_IRQ6
2
yes
yes
1
IRQ6 source selection: PC104_IRQ6
0
IRQ7 source selection: SIO_IRQ7
3
yes
yes
1
IRQ7 source selection: PC104_IRQ7
0
IRQ8 source selection: SIO_IRQ8
4
yes
yes
1
IRQ8 source selection: PC104_IRQ4
0
IRQ9 source selection: UART_IRQ (internal)
5
yes
yes
1
IRQ9 source selection: PC104_IRQ9
6
yes
no
0
–
0
IRQ11 source selection: UART_IRQ (internal)
317*
7
yes
yes
1
IRQ11 source selection: PC104_IRQ11
0
IRQ12 source selection: SIO_IRQ12
0
yes
yes
1
IRQ12 source selection: PC104_IRQ12
0
IRQ14 source selection: OPTO_IRQ
1
yes
yes
1
IRQ14 source selection: PC104_IRQ14
0
IRQ15 source selection: FL_RB (NAND FLASH available)
2
yes
yes
1
IRQ15 source selection: PC104_IRQ15
3
yes
no
0
–
4
yes
no
0
–
5
yes
no
0
–
6
yes
no
0
–
318*
7
yes
no
0
–
