PIC18F2450-ESLASHMLQTP datasheet(94/320 Pages) MICROCHIP

94 / 320 page

PIC18F2450/4450

DS39760A-page 92

Advance Information

8.4

PIE Registers

The PIE registers contain the individual enable bits for

the peripheral interrupts. Due to the number of

peripheral interrupt sources, there are two Peripheral

Interrupt Enable registers (PIE1 and PIE2). When

IPEN = 0, the PEIE bit must be set to enable any of

these peripheral interrupts.

PIE1: PERIPHERAL INTERRUPT ENABLE REGISTER 1

U-0

R/W-0

U-0

R/W-0

—

ADIE

RCIE

TXIE

—

CCP1IE

TMR2IE

TMR1IE

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

Unimplemented: Read as ‘0’

bit 6

ADIE: A/D Converter Interrupt Enable bit

= Enables the A/D interrupt

= Disables the A/D interrupt

bit 5

RCIE: EUSART Receive Interrupt Enable bit

= Enables the EUSART receive interrupt

= Disables the EUSART receive interrupt

bit 4

TXIE: EUSART Transmit Interrupt Enable bit

= Enables the EUSART transmit interrupt

= Disables the EUSART transmit interrupt

bit 3

Unimplemented: Read as ‘0’

bit 2

CCP1IE: CCP1 Interrupt Enable bit

= Enables the CCP1 interrupt

= Disables the CCP1 interrupt

bit 1

TMR2IE: TMR2 to PR2 Match Interrupt Enable bit

= Enables the TMR2 to PR2 match interrupt

= Disables the TMR2 to PR2 match interrupt

bit 0

TMR1IE: TMR1 Overflow Interrupt Enable bit

= Enables the TMR1 overflow interrupt

= Disables the TMR1 overflow interrupt

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