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PIC16LF1454 Datasheet, PDF (100/418 Pages) Microchip Technology – 14/20-Pin Flash, 8-Bit USB Microcontrollers with XLP Technology
PIC16(L)F1454/5/9
REGISTER 8-5: PIR2: PERIPHERAL INTERRUPT REQUEST REGISTER 2
R/W-0/0
R/W-0/0
R/W-0/0
U-0
R/W-0/0
R/W-0/0
R/W-0/0
OSFIF
C2IF
C1IF
—
BCL1IF
USBIF
ACTIF
bit 7
U-0
—
bit 0
Legend:
R = Readable bit
u = Bit is unchanged
‘1’ = Bit is set
W = Writable bit
x = Bit is unknown
‘0’ = Bit is cleared
U = Unimplemented bit, read as ‘0’
-n/n = Value at POR and BOR/Value at all other Resets
bit 7
OSFIF: Oscillator Fail Interrupt Flag bit
1 = Interrupt is pending
0 = Interrupt is not pending
bit 6
C2IF: Numerically Controlled Oscillator Flag bit
1 = Interrupt is pending
0 = Interrupt is not pending
bit 5
C1IF: Numerically Controlled Oscillator Flag bit
1 = Interrupt is pending
0 = Interrupt is not pending
bit 4
Unimplemented: Read as ‘0’
bit 3
BCL1IF: MSSP Bus Collision Interrupt Flag bit
1 = Interrupt is pending
0 = Interrupt is not pending
bit 2
USBIF: USB Flag bit
1 = Interrupt is pending
0 = Interrupt is not pending
bit 1
ACTIF: Active Clock Tuning Interrupt Flag bit
1 = Interrupt is pending
0 = Interrupt is not pending
bit 0
Unimplemented: Read as ‘0’
Note:
Interrupt flag bits are set when an interrupt
condition occurs, regardless of the state of
its corresponding enable bit or the Global
Interrupt Enable bit, GIE, of the INTCON
register. User software should ensure the
appropriate interrupt flag bits are clear prior
to enabling an interrupt.
DS41639A-page 100
Preliminary
 2012 Microchip Technology Inc.