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2010-2012 Microchip Technology Inc.
DS41414D-page 155
PIC16(L)F1946/47
13.6
Register Definitions: Interrupt-on-Change Control
REGISTER 13-1:
IOCBP: INTERRUPT-ON-CHANGE PORTB POSITIVE EDGE REGISTER
R/W-0/0
IOCBP7
IOCBP6
IOCBP5
IOCBP4
IOCBP3
IOCBP2
IOCBP1
IOCBP0
bit 7
bit 0
Legend:
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 7-0
IOCBP<7:0>:
Interrupt-on-Change PORTB Positive Edge Enable bits
1 = Interrupt-on-change enabled on the pin for a positive going edge. IOCBFx bit and IOCIF flag will
be set upon detecting an edge.
0 = Interrupt-on-change disabled for the associated pin.
REGISTER 13-2:
IOCBN: INTERRUPT-ON-CHANGE PORTB NEGATIVE EDGE REGISTER
R/W-0/0
IOCBN7
IOCBN6
IOCBN5
IOCBN4
IOCBN3
IOCBN2
IOCBN1
IOCBN0
bit 7
bit 0
Legend:
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 7-0
IOCBN<7:0>:
Interrupt-on-Change PORTB Negative Edge Enable bits
1 = Interrupt-on-change enabled on the pin for a negative going edge. IOCBFx bit and IOCIF flag will
be set upon detecting an edge.
0 = Interrupt-on-change disabled for the associated pin.
REGISTER 13-3:
IOCBF: INTERRUPT-ON-CHANGE PORTB FLAG REGISTER
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 R/W/HS-0/0
IOCBF7
IOCBF6
IOCBF5
IOCBF4
IOCBF3
IOCBF2
IOCBF1
IOCBF0
bit 7
bit 0
Legend:
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 7-0
IOCBF<7:0>:
Interrupt-on-Change PORTB Flag bits
1 = An enabled change was detected on the associated pin.
Set when IOCBPx = 1 and a rising edge was detected on RBx, or when IOCBNx = 1 and a falling
edge was detected on RBx.
0 = No change was detected, or the user cleared the detected change.
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