PIC18F23K22 Datasheet, PDF (127/492 Pages) Microchip Technology – 28/40/44-Pin, Low-Power, High-Performance Microcontrollers with nanoWatt XLP Technology

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
—
bit 7
R/W-1
ADIP
R/W-1
RC1IP
R/W-1
TX1IP
R/W-1
SSP1IP
R/W-1
CCP1IP
R/W-1
TMR2IP
R/W-1
TMR1IP
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
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
 2010 Microchip Technology Inc.
Preliminary
DS41412B-page 127