PIC18F44K22-I/SO 查看數據表（PDF） - Microchip Technology

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PIC18F44K22-I/SO

28/40/44-Pin, Low-Power,High-Performance Microcontrollers with XLP Technology

Microchip Technology 

PIC18(L)F2X/4XK22

9.7 IPR Registers

The IPR registers contain the individual priority bits for the

peripheral interrupts. Due to the number of peripheral

interrupt sources, there are five Peripheral Interrupt

Priority registers (IPR1, IPR2, IPR3, IPR4 and IPR5).

Using the priority bits requires that the Interrupt Priority

Enable (IPEN) bit be set.

REGISTER 9-14: IPR1: PERIPHERAL INTERRUPT PRIORITY REGISTER 1

U-0

—

bit 7

R/W-1

ADIP

R/W-1

RC1IP

R/W-1

TX1IP

R/W-1

SSP1IP

R/W-1

CCP1IP

R/W-1

TMR2IP

R/W-1

TMR1IP

bit 0

Legend:

R = Readable bit

-n = Value at POR

W = Writable bit

‘1’ = Bit is set

U = Unimplemented bit, read as ‘0’

‘0’ = Bit is cleared

x = Bit is unknown

bit 7

Unimplemented: Read as ‘0’

bit 6

ADIP: A/D Converter Interrupt Priority bit

1 = High priority

0 = Low priority

bit 5

RC1IP: EUSART1 Receive Interrupt Priority bit

1 = High priority

0 = Low priority

bit 4

TX1IP: EUSART1 Transmit Interrupt Priority bit

1 = High priority

0 = Low priority

bit 3

SSP1IP: Master Synchronous Serial Port 1 Interrupt Priority bit

1 = High priority

0 = Low priority

bit 2

CCP1IP: CCP1 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

 2010 Microchip Technology Inc.

Preliminary

DS41412A-page 127

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