Microchip Technology DM164134 Data Sheet
© 2006 Microchip Technology Inc.
DS41159E-page 85
PIC18FXX8
8.3
PIE Registers
The Peripheral Interrupt Enable (PIE) registers contain
the individual enable bits for the peripheral interrupts
(Register 8-7 through Register 8-9). Due to the number
of peripheral interrupt sources, there are three Periph-
eral Interrupt Enable registers (PIE1, PIE2, PIE3).
When IPEN is clear, the PEIE bit must be set to enable
any of these peripheral interrupts.
the individual enable bits for the peripheral interrupts
(Register 8-7 through Register 8-9). Due to the number
of peripheral interrupt sources, there are three Periph-
eral Interrupt Enable registers (PIE1, PIE2, PIE3).
When IPEN is clear, the PEIE bit must be set to enable
any of these peripheral interrupts.
REGISTER 8-7:
PIE1: PERIPHERAL INTERRUPT ENABLE REGISTER 1
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
PSPIE
(1)
ADIE
RCIE
TXIE
SSPIE
CCP1IE
TMR2IE
TMR1IE
bit 7
bit 0
bit 7
PSPIE: Parallel Slave Port Read/Write Interrupt Enable bit
(1)
1
= Enables the PSP read/write interrupt
0
= Disables the PSP read/write interrupt
bit 6
ADIE: A/D Converter Interrupt Enable bit
1
= Enables the A/D interrupt
0
= Disables the A/D interrupt
bit 5
RCIE: USART Receive Interrupt Enable bit
1
= Enables the USART receive interrupt
0
= Disables the USART receive interrupt
bit 4
TXIE: USART Transmit Interrupt Enable bit
1
= Enables the USART transmit interrupt
0
= Disables the USART transmit interrupt
bit 3
SSPIE: Master Synchronous Serial Port Interrupt Enable bit
1
= Enables the MSSP interrupt
0
= Disables the MSSP 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
Note 1: This bit is only available on PIC18F4X8 devices. For PIC18F2X8 devices, this bit
is unimplemented and reads as ‘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