Datasheet

PIC16(L)F1454/5/9
DS41639A-page 144 Preliminary  2012 Microchip Technology Inc.
FIGURE 13-1: INTERRUPT-ON-CHANGE BLOCK DIAGRAM (PORTA EXAMPLE)
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