PIC18F2331 MICROCHIP [Microchip Technology], PIC18F2331 Datasheet - Page 104

• Manufacturer Part Number: PIC18F2331
• Description: 28/40/44-Pin Enhanced Flash Microcontrollers with nanoWatt Technology, High Performance PWM and A/D
• Manufacturer: MICROCHIP [Microchip Technology]

PIC18F2331/2431/4331/4431
9.4
The IPR registers contain the individual priority bits for
the peripheral interrupts. Due to the number of
peripheral interrupt sources, there are two peripheral
interrupt priority registers (IPR1, IPR2). Using the
priority bits requires that the Interrupt Priority Enable
(IPEN) bit be set.
REGISTER 9-10:
DS39616B-page 102
IPR Registers
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
IPR1: PERIPHERAL INTERRUPT PRIORITY REGISTER 1
bit 7
Unimplemented: Read as ‘0’
ADIP: A/D Converter Interrupt Priority bit
1 = High priority
0 = Low priority
RCIP: USART Receive Interrupt Priority bit
1 = High priority
0 = Low priority
TXIP: USART Transmit Interrupt Priority bit
1 = High priority
0 = Low priority
SSPIP: Synchronous Serial Port Interrupt Priority bit
1 = High priority
0 = Low priority
CCP1IP: CCP1 Interrupt Priority bit
1 = High priority
0 = Low priority
TMR2IP: TMR2 to PR2 Match Interrupt Priority bit
1 = High priority
0 = Low priority
TMR1IP: TMR1 Overflow Interrupt Priority bit
1 = High priority
0 = Low priority
Legend:
R = Readable bit
- n = Value at POR
U-0
—
R/W-1
ADIP
R/W-1
RCIP
Preliminary
W = Writable bit
‘1’ = Bit is set
R/W-1
TXIP
SSPIP
R/W-1
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
CCP1IP
R/W-1
 2003 Microchip Technology Inc.
x = Bit is unknown
TMR2IP
R/W-1
TMR1IP
R/W-1
bit 0