PIC16F1512-I Datasheet, PDF (122/348 Pages) Microchip Technology – 28-Pin Flash Microcontrollers with XLP Technology

PIC16(L)F1512/3
FIGURE 13-1:
INTERRUPT-ON-CHANGE BLOCK DIAGRAM
IOCBNx
D
Q
CK
R
Q4Q1
edge
detect
RBx
IOCBPx
Q2
D
Q
CK
R
data bus =
0 or 1
write IOCBFx
S
D
Q
CK
to data bus
IOCBFx
IOCIE
from all other
IOCBFx 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
DS41624B-page 122
Preliminary
 2012 Microchip Technology Inc.