PIC16F819 Datasheet

IC型号：
PIC16F819
PDF描述：
18/20-Pin Enhanced Flash Microcontrollers with nanoWatt Tech...
文件大小：
68.31KB
PDF页数：
176页
芯片厂家：
MICROCHIP

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PIC16F818/819

2.2.2.5

PIR1 Register

Note:

This register contains the individual flag bits for the

peripheral interrupts.

Interrupt flag bits are set when an interrupt

condition occurs regardless of the state of

its corresponding enable bit, or the global

enable bit, GIE (INTCON<7>). User

software should ensure the appropriate

interrupt flag bits are clear prior to

enabling an interrupt.

PIR1: PERIPHERAL INTERRUPT FLAG REGISTER 1 (ADDRESS 0Ch)

U-0

鈥?/div>

bit 7

R/W-0

ADIF

U-0

鈥?/div>

U-0

鈥?/div>

R/W-0

SSPIF

R/W-0

CCP1IF

R/W-0

TMR2IF

R/W-0

TMR1IF

bit 0

bit 7

bit 6

Unimplemented:

Read as 鈥?鈥?/div>

ADIF:

A/D Converter Interrupt Flag bit

= An A/D conversion completed

= The A/D conversion is not complete

Unimplemented:

Read as 鈥?鈥?/div>

SSPIF:

Synchronous Serial Port (SSP) Interrupt Flag bit

= The SSP interrupt condition has occurred and must be cleared in software before returning

from the Interrupt Service Routine. The conditions that will set this bit are a transmission/

reception has taken place.

= No SSP interrupt condition has occurred

CCP1IF:

CCP1 Interrupt Flag bit

Capture mode:

= A TMR1 register capture occurred (must be cleared in software)

= No TMR1 register capture occurred

Compare mode:

= A TMR1 register compare match occurred (must be cleared in software)

= No TMR1 register compare match occurred

PWM mode:

Unused in this mode.

TMR2IF:

TMR2 to PR2 Match Interrupt Flag bit

= TMR2 to PR2 match occurred (must be cleared in software)

= No TMR2 to PR2 match occurred

TMR1IF:

TMR1 Overflow Interrupt Flag bit

= TMR1 register overflowed (must be cleared in software)

= TMR1 register did not overflow

Legend:

R = Readable bit

- n = Value at POR

W = Writable bit

鈥?鈥?= Bit is set

U = Unimplemented bit, read as 鈥?鈥?/div>

鈥?鈥?= Bit is cleared

x = Bit is unknown

bit 5-4

bit 3

bit 2

bit 1

bit 0

DS39598D-page 20

Preliminary

铮?/div>

2003 Microchip Technology Inc.

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