p16f877 Microchip Technology Inc., p16f877 Datasheet - Page 26

• Manufacturer Part Number: p16f877
• Description: 28/40-pin 8-bit Cmos Flash Microcontrollers
• Manufacturer: Microchip Technology Inc.

PIC16F87X
2.2.2.7
The PIR2 register contains the flag bits for the CCP2
interrupt, the SSP bus collision interrupt and the
EEPROM write operation interrupt.
REGISTER 2-7:
DS30292C-page 24
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2-1
bit 0
PIR2 Register
PIR2 REGISTER (ADDRESS 0Dh)
bit 7
Unimplemented: Read as '0'
Reserved: Always maintain this bit clear
Unimplemented: Read as '0'
EEIF: EEPROM Write Operation Interrupt Flag bit
1 = The write operation completed (must be cleared in software)
0 = The write operation is not complete or has not been started
BCLIF: Bus Collision Interrupt Flag bit
1 = A bus collision has occurred in the SSP, when configured for I2C Master mode
0 = No bus collision has occurred
Unimplemented: Read as '0'
CCP2IF: CCP2 Interrupt Flag bit
Capture mode:
1 = A TMR1 register capture occurred (must be cleared in software)
0 = No TMR1 register capture occurred
Compare mode:
1 = A TMR1 register compare match occurred (must be cleared in software)
0 = No TMR1 register compare match occurred
PWM mode:
Unused
Legend:
R = Readable bit
- n = Value at POR
U-0
—
Reserved
R/W-0
U-0
—
W = Writable bit
’1’ = Bit is set
R/W-0
EEIF
.
Note:
U = Unimplemented bit, read as ‘0’
’0’ = Bit is cleared
R/W-0
BCLIF
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 (INTCON<7>). User soft-
ware should ensure the appropriate inter-
rupt flag bits are clear prior to enabling an
interrupt.
U-0
—
2001 Microchip Technology Inc.
x = Bit is unknown
U-0
—
CCP2IF
R/W-0
bit 0