PIC18F1220ESLASHSSSQTP datasheet(81/308 Pages) MICROCHIP

81 / 308 page

DS39605F-page 79

PIC18F1220/1320

PIR2: PERIPHERAL INTERRUPT REQUEST (FLAG) REGISTER 2

R/W-0

U-0

R/W-0

U-0

R/W-0

U-0

OSCFIF

—

EEIF

—

LVDIF

TMR3IF

—

bit 7

bit 0

bit 7

OSCFIF: Oscillator Fail Interrupt Flag bit

= System oscillator failed, clock input has changed to INTOSC (must be cleared in software)

= System clock operating

bit 6-5

Unimplemented: Read as ‘0’

bit 4

EEIF: Data EEPROM/Flash Write Operation Interrupt Flag bit

= The write operation is complete (must be cleared in software)

= The write operation is not complete or has not been started

bit 3

Unimplemented: Read as ‘0’

bit 2

LVDIF: Low-Voltage Detect Interrupt Flag bit

= A low-voltage condition occurred (must be cleared in software)

= The device voltage is above the Low-Voltage Detect trip point

bit 1

TMR3IF: TMR3 Overflow Interrupt Flag bit

= TMR3 register overflowed (must be cleared in software)

= TMR3 register did not overflow

bit 0

Unimplemented: Read as ‘0’

Legend:

R = Readable bit

W = Writable bit

U = Unimplemented bit, read as ‘0’

-n = Value at POR

‘1’ = Bit is set

‘0’ = Bit is cleared

x = Bit is unknown

PIC18F1220E/SSSQTP Datasheet(PDF) 81 Page - Microchip Technology

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