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PIC16F1825T-ESS Datasheet(PDF) 140 Page - Microchip Technology

Part # PIC16F1825T-ESS
Description  14/20-Pin Flash Microcontrollers with XLP Technology
PDF  448 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PIC16F1825T-ESS Datasheet(HTML) 140 Page - Microchip Technology

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PIC16(L)F1825/1829
DS41440C-page 140
 2010-2012 Microchip Technology Inc.
FIGURE 13-1:
INTERRUPT-ON-CHANGE BLOCK DIAGRAM (PORTA EXAMPLE)
13.6
Interrupt-on-Change Registers
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
REGISTER 13-1:
IOCAP: INTERRUPT-ON-CHANGE PORTA POSITIVE EDGE REGISTER
U-0
U-0
R/W-0/0
R/W-0/0
R/W-0/0
R/W-0/0
R/W-0/0
R/W-0/0
—
—
IOCAP5
IOCAP4
IOCAP3
IOCAP2
IOCAP1
IOCAP0
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 7-6
Unimplemented: Read as ‘0’
bit 5-0
IOCAP<5:0>: Interrupt-on-Change PORTA Positive Edge Enable bits
1 = Interrupt-on-change enabled on the pin for a positive going edge. Associated Status bit and interrupt flag will
be set upon detecting an edge.
0 = Interrupt-on-change disabled for the associated pin.



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