Datasheet

 2010 Microchip Technology Inc. Preliminary DS41412C-page 127
PIC18(L)F2X/4XK22
9.7 IPR Registers
The IPR registers contain the individual priority bits for the
peripheral interrupts. Due to the number of peripheral
interrupt sources, there are five Peripheral Interrupt
Priority registers (IPR1, IPR2, IPR3, IPR4 and IPR5).
Using the priority bits requires that the Interrupt Priority
Enable (IPEN) bit be set.
REGISTER 9-14: IPR1: PERIPHERAL INTERRUPT PRIORITY REGISTER 1
U-0 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1
— ADIP RC1IP TX1IP SSP1IP CCP1IP TMR2IP TMR1IP
bit 7 bit 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
bit 7 Unimplemented: Read as ‘0’
bit 6 ADIP: A/D Converter Interrupt Priority bit
1 = High priority
0 = Low priority
bit 5 RC1IP: EUSART1 Receive Interrupt Priority bit
1 = High priority
0 = Low priority
bit 4 TX1IP: EUSART1 Transmit Interrupt Priority bit
1 = High priority
0 = Low priority
bit 3 SSP1IP: Master Synchronous Serial Port 1 Interrupt Priority bit
1 = High priority
0 = Low priority
bit 2 CCP1IP: CCP1 Interrupt Priority bit
1 = High priority
0 = Low priority
bit 1 TMR2IP: TMR2 to PR2 Match Interrupt Priority bit
1 = High priority
0 = Low priority
bit 0 TMR1IP: TMR1 Overflow Interrupt Priority bit
1 = High priority
0 = Low priority