PIC16F1847 datasheet(95/408 Pages) MICROCHIP

95 / 408 page

 2011 Microchip Technology Inc.

Preliminary

DS41453B-page 95

PIC16(L)F1847

8.5.7

PIR2 REGISTER

The PIR2 register contains the interrupt flag bits, as

shown in Register 8-7.

Note:

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.

PIR2: PERIPHERAL INTERRUPT REQUEST REGISTER 2

R/W-0/0

U-0

R/W-0/0

OSFIF

C2IF

C1IF

EEIF

BCL1IF

—

CCP2IF

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

OSFIF:

Oscillator Fail Interrupt Flag bit

= Interrupt is pending

= Interrupt is not pending

bit 6

C2IF:

Comparator C2 Interrupt Flag bit

= Interrupt is pending

= Interrupt is not pending

bit 5

C1IF:

Comparator C1 Interrupt Flag bit

= Interrupt is pending

= Interrupt is not pending

bit 4

EEIF:

EEPROM Write Completion Interrupt Flag bit

= Interrupt is pending

= Interrupt is not pending

bit 3

BCL1IF:

MSSP1 Bus Collision Interrupt Flag bit

= Interrupt is pending

= Interrupt is not pending

bit 2-1

Unimplemented:

Read as ‘0’

bit 0

CCP2IF:

CCP2 Interrupt Flag bit

= Interrupt is pending

= Interrupt is not pending

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