PIC18F66K80 FAMILY
DS39977F-page 162
2010-2012 Microchip Technology Inc.
10.4
IPR Registers
The IPR registers contain the individual priority bits for
the peripheral interrupts. Due to the number of
peripheral interrupt sources, there are six Peripheral
Interrupt Priority registers (IPR1 through IPR6). Using
the priority bits requires that the Interrupt Priority
Enable (IPEN) bit (RCON<7>) be set.
REGISTER 10-14: IPR1: PERIPHERAL INTERRUPT PRIORITY REGISTER 1
R/W-1
PSPIP
ADIP
RC1IP
TX1IP
SSPIP
TMR1GIP
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
PSPIP:
Parallel Slave Port Read/Write Interrupt Priority bit
1
=High priority
0
= Low priority
bit 6
ADIP:
A/D Converter Interrupt Priority bit
1
=High priority
0
= Low priority
bit 5
RC1IP:
EUSARTx Receive Interrupt Priority bit
1
=High priority
0
= Low priority
bit 4
TX1IP:
EUSARTx Transmit Interrupt Priority bit
1
=High priority
0
= Low priority
bit 3
SSPIP:
Master Synchronous Serial Port Interrupt Priority bit
1
=High priority
0
= Low priority
bit 2
TMR1GIP:
Timer1 Gate 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
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