Microchip Technology DM183021 Data Sheet
2010 Microchip Technology Inc.
DS39616D-page 105
PIC18F2331/2431/4331/4431
10.3
PIE Registers
The PIE registers contain the individual enable bits for
the peripheral interrupts. Due to the number of peripheral
interrupt sources, there are three Peripheral Interrupt
Enable Registers (PIE1, PIE2 and PIE3). When
IPEN = 0, the PEIE bit must be set to enable any of these
peripheral interrupts.
the peripheral interrupts. Due to the number of peripheral
interrupt sources, there are three Peripheral Interrupt
Enable Registers (PIE1, PIE2 and PIE3). When
IPEN = 0, the PEIE bit must be set to enable any of these
peripheral interrupts.
REGISTER 10-7:
PIE1: PERIPHERAL INTERRUPT ENABLE REGISTER 1
U-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
—
ADIE
RCIE
TXIE
SSPIE
CCP1IE
TMR2IE
TMR1IE
bit 7
bit 0
Legend:
R = Readable bit
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
ADIE:
A/D Converter Interrupt Enable bit
1
= Enables the A/D interrupt
0
= Disables the A/D interrupt
bit 5
RCIE:
EUSART Receive Interrupt Enable bit
1
= Enables the EUSART receive interrupt
0
= Disables the EUSART receive interrupt
bit 4
TXIE:
EUSART Transmit Interrupt Enable bit
1
= Enables the EUSART transmit interrupt
0
= Disables the EUSART transmit interrupt
bit 3
SSPIE:
Synchronous Serial Port Interrupt Enable bit
1
= Enables the SSP interrupt
0
= Disables the SSP interrupt
bit 2
CCP1IE:
CCP1 Interrupt Enable bit
1
= Enables the CCP1 interrupt
0
= Disables the CCP1 interrupt
bit 1
TMR2IE:
TMR2 to PR2 Match Interrupt Enable bit
1
= Enables the TMR2 to PR2 match interrupt
0
= Disables the TMR2 to PR2 match interrupt
bit 0
TMR1IE:
TMR1 Overflow Interrupt Enable bit
1
= Enables the TMR1 overflow interrupt
0
= Disables the TMR1 overflow interrupt