PIC18F2450/4450
REGISTER 8-5:
PIR2: PERIPHERAL INTERRUPT REQUEST (FLAG) REGISTER 2
R/W-0
OSCFIF
bit 7
U-0
—
R/W-0
USBIF
U-0
—
U-0
—
R/W-0
U-0
—
U-0
—
HLVDIF
bit 0
Legend:
R = Readable bit
-n = Value at POR
W = Writable bit
‘1’ = Bit is set
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared x = Bit is unknown
bit 7
OSCFIF: Oscillator Fail Interrupt Flag bit
1= System oscillator failed, clock input has changed to INTRC (must be cleared in software)
0= System clock operating
bit 6
bit 5
Unimplemented: Read as ‘0’
USBIF: USB Interrupt Flag bit
1= USB has requested an interrupt (must be cleared in software)
0= No USB interrupt request
bit 4-3
bit 2
Unimplemented: Read as ‘0’
HLVDIF: High/Low-Voltage Detect Interrupt Flag bit
1= A high/low-voltage condition occurred
0= No high/low-voltage event has occurred
bit 1-0
Unimplemented: Read as ‘0’
© 2006 Microchip Technology Inc.
Advance Information
DS39760A-page 91
MICROCHIP [ MICROCHIP ]
