Microchip Technology AC244044 Data Sheet

Page of 448
 2010-2012 Microchip Technology Inc.
DS41440C-page 97
PIC16(L)F1825/1829
8.6.8
PIR3 REGISTER
The PIR3 register contains the interrupt flag bits, as
shown in 
.
             
Note 1: Interrupt flag bits are set when an
interrupt condition occurs, regardless of
the state of its corresponding enable bit
or the Global Enable bit, GIE, of the
INTCON register. User software should
ensure the appropriate interrupt flag bits
are clear prior to enabling an interrupt.
REGISTER 8-8:
PIR3: PERIPHERAL INTERRUPT REQUEST REGISTER 3
U-0
U-0
R/W-0/0
R/W-0/0
R/W-0/0
U-0
R/W-0/0
U-0
CCP4IF
CCP3IF
TMR6IF
TMR4IF
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
CCP4IF: CCP4 Interrupt Flag bit
1 = Interrupt is pending
0 = Interrupt is not pending
bit 4
CCP3IF: CCP3 Interrupt Flag bit
1 = Interrupt is pending
0 = Interrupt is not pending
bit 3
TMR6IF: TMR6 to PR6 Match Interrupt Flag bit
1 = Interrupt is pending
0 = Interrupt is not pending
bit 2
Unimplemented: Read as ‘0’
bit 1
TMR4IF: TMR4 to PR4 Match Interrupt Flag bit
1 = Interrupt is pending
0 = Interrupt is not pending
bit 0
Unimplemented: Read as ‘0’