Datasheet

PIC12(L)F1840
DS40001441D-page 110  2011-2013 Microchip Technology Inc.
FIGURE 13-1: INTERRUPT-ON-CHANGE BLOCK DIAGRAM
D
CK
R
Q
D
CK
R
Q
RAx
IOCANx
IOCAPx
Q2
D
CK
S
Q
Q4Q1
Data Bus =
0 or 1
write IOCAFx
IOCIE
To Data Bus
IOCAFx
Edge
Detect
IOC Interrupt
to CPU core
From all other
IOCAFx individual
Pin Detectors
Q1
Q2
Q3
Q4
Q4Q1
Q1
Q2
Q3
Q4
Q1
Q2
Q3
Q4
Q4
Q4Q1
Q4Q1
Q4Q1