Microchip Technology AC244045 Data Sheet
2010-2012 Microchip Technology Inc.
DS41440C-page 141
PIC16(L)F1825/1829
REGISTER 13-2:
IOCAN: INTERRUPT-ON-CHANGE PORTA NEGATIVE EDGE REGISTER
U-0
U-0
R/W-0/0
R/W-0/0
R/W-0/0
R/W-0/0
R/W-0/0
R/W-0/0
—
—
IOCAN5
IOCAN4
IOCAN3
IOCAN2
IOCAN1
IOCAN0
bit 7
bit 0
Legend:
R = Readable bit
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
u = Bit is unchanged
x = Bit is unknown
-n/n = Value at POR and BOR/Value at all other Resets
‘1’ = Bit is set
‘0’ = Bit is cleared
bit 7-6
Unimplemented: Read as ‘0’
bit 5-0
IOCAN<5:0>: Interrupt-on-Change PORTA Negative Edge Enable bits
1 = Interrupt-on-change enabled on the pin for a negative going edge. Associated Status bit and interrupt flag will
1 = Interrupt-on-change enabled on the pin for a negative going edge. Associated Status bit and interrupt flag will
be set upon detecting an edge.
0 = Interrupt-on-change disabled for the associated pin.
REGISTER 13-3:
IOCAF: INTERRUPT-ON-CHANGE PORTA FLAG REGISTER
U-0
U-0
R/W/HS-0/0
R/W/HS-0/0
R/W/HS-0/0
R/W/HS-0/0
R/W/HS-0/0
R/W/HS-0/0
—
—
IOCAF5
IOCAF4
IOCAF3
IOCAF2
IOCAF1
IOCAF0
bit 7
bit 0
Legend:
R = Readable bit
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
u = Bit is unchanged
x = Bit is unknown
-n/n = Value at POR and BOR/Value at all other Resets
‘1’ = Bit is set
‘0’ = Bit is cleared
HS - Bit is set in hardware
bit 7-6
Unimplemented: Read as ‘0’
bit 5-0
IOCAF<5:0>: Interrupt-on-Change PORTA Flag bits
1 = An enabled change was detected on the associated pin.
1 = An enabled change was detected on the associated pin.
Set when IOCAPx = 1 and a rising edge was detected on RAx, or when IOCANx = 1 and a falling edge was
detected on RAx.
detected on RAx.
0 = No change was detected, or the user cleared the detected change.
REGISTER 13-4:
IOCBP: INTERRUPT-ON-CHANGE PORTB POSITIVE EDGE REGISTER
(PIC16(L)F1829 ONLY)
(PIC16(L)F1829 ONLY)
R/W-0/0
R/W-0/0
R/W-0/0
R/W-0/0
U-0
U-0
U-0
U-0
IOCBP7
IOCBP6
IOCBP5
IOCBP4
—
—
—
—
bit 7
bit 0
Legend:
R = Readable bit
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
u = Bit is unchanged
x = Bit is unknown
-n/n = Value at POR and BOR/Value at all other Resets
‘1’ = Bit is set
‘0’ = Bit is cleared
bit 7-4
IOCBP<7:4>: Interrupt-on-Change PORTB Positive Edge Enable bits
1 = Interrupt-on-change enabled on the pin for a positive going edge. Associated Status bit and interrupt
1 = Interrupt-on-change enabled on the pin for a positive going edge. Associated Status bit and interrupt
flag will be set upon detecting an edge.
0 = Interrupt-on-change disabled for the associated pin.
bit 3-0
Unimplemented: Read as ‘0’