PIC18F44K20-I/MV【PDF 233/234 页】MCU 16KB FLASH 768B RAM 40-UQFN

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dsPIC33F

DS70165E-page 96

Preliminary

2007 Microchip Technology Inc.

REGISTER 6-5:

IFS0: INTERRUPT FLAG STATUS REGISTER 0

U-0

R/W-0

—

DMA1IF

AD1IF

U1TXIF

U1RXIF

SPI1IF

SPI1EIF

T3IF

bit 15

bit 8

R/W-0

T2IF

OC2IF

IC2IF

DMA01IF

T1IF

OC1IF

IC1IF

INT0IF

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 15

Unimplemented: Read as ‘0’

bit 14

DMA1IF: DMA Channel 1 Data Transfer Complete Interrupt Flag Status bit

1

= Interrupt request has occurred

0

= Interrupt request has not occurred

bit 13

AD1IF: ADC1 Conversion Complete Interrupt Flag Status bit

1

= Interrupt request has occurred

0

= Interrupt request has not occurred

bit 12

U1TXIF: UART1 Transmitter Interrupt Flag Status bit

1

= Interrupt request has occurred

0

= Interrupt request has not occurred

bit 11

U1RXIF: UART1 Receiver Interrupt Flag Status bit

1

= Interrupt request has occurred

0

= Interrupt request has not occurred

bit 10

SPI1IF: SPI1 Event Interrupt Flag Status bit

1

= Interrupt request has occurred

0

= Interrupt request has not occurred

bit 9

SPI1EIF: SPI1 Fault Interrupt Flag Status bit

1

= Interrupt request has occurred

0

= Interrupt request has not occurred

bit 8

T3IF: Timer3 Interrupt Flag Status bit

1

= Interrupt request has occurred

0

= Interrupt request has not occurred

bit 7

T2IF: Timer2 Interrupt Flag Status bit

1

= Interrupt request has occurred

0

= Interrupt request has not occurred

bit 6

OC2IF: Output Compare Channel 2 Interrupt Flag Status bit

1

= Interrupt request has occurred

0

= Interrupt request has not occurred

bit 5

IC2IF: Input Capture Channel 2 Interrupt Flag Status bit

1

= Interrupt request has occurred

0

= Interrupt request has not occurred

bit 4

DMA0IF: DMA Channel 0 Data Transfer Complete Interrupt Flag Status bit

1

= Interrupt request has occurred

0

= Interrupt request has not occurred

bit 3

T1IF: Timer1 Interrupt Flag Status bit

1

= Interrupt request has occurred

0

= Interrupt request has not occurred

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