Datasheet

PIC18F6525/6621/8525/8621
DS39612C-page 94  2003-2013 Microchip Technology Inc.
REGISTER 9-6: PIR3: PERIPHERAL INTERRUPT REQUEST (FLAG) REGISTER 3
U-0 U-0 R-0 R-0 R/W-0 R/W-0 R/W-0 R/W-0
— — RC2IF TX2IF TMR4IF CCP5IF CCP4IF CCP3IF
bit 7 bit 0
bit 7-6 Unimplemented: Read as ‘0’
bit 5 RC2IF: USART2 Receive Interrupt Flag bit
1 = The USART2 receive buffer, RCREGx, is full (cleared when RCREGx is read)
0 = The USART2 receive buffer is empty
bit 4 TX2IF: USART2 Transmit Interrupt Flag bit
1 = The USART2 transmit buffer, TXREGx, is empty (cleared when TXREGx is written)
0 = The USART2 transmit buffer is full
bit 3 TMR4IF: TMR3 Overflow Interrupt Flag bit
1 = TMR4 register overflowed (must be cleared in software)
0 = TMR4 register did not overflow
bit 2-0 CCPxIF: CCPx Interrupt Flag bit (ECCP3, CCP4 and CCP5)
Capture mode:
1 = A TMR1 or TMR3 register capture occurred (must be cleared in software)
0 = No TMR1 or TMR3 register capture occurred
Compare mode:
1 = A TMR1 or TMR3 register compare match occurred (must be cleared in software)
0 = No TMR1 or TMR3 register compare match occurred
PWM mode:
Unused in this mode.
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