PIC16LF1508 Datasheet, PDF (126/384 Pages) Microchip Technology – 20-Pin Flash, 8-Bit Microcontrollers with nanoWatt XLP Technology

PIC16(L)F1508/9
FIGURE 12-1:
INTERRUPT-ON-CHANGE BLOCK DIAGRAM (PORTA EXAMPLE)
IOCANx
D
Q
CK
R
Q4Q1
Edge
Detect
RAx
IOCAPx
Q2
D
Q
CK
R
Data Bus =
0 or 1
Write IOCAFx
S
D
Q
CK
To Data Bus
IOCAFx
IOCIE
From all other
IOCAFx individual
Pin Detectors
IOC interrupt
to CPU core
Q1
Q1
Q1
Q2
Q2
Q2
Q3
Q3
Q3
Q4 _Q4
Q4
Q4
Q4Q1
Q4Q1
Q4Q1
Q4Q1
DS41609A-page 126
Preliminary
 2011 Microchip Technology Inc.