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參數(shù)資料
| 型號(hào)： | 16F630 |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | 14-Pin FLASH-Based 8-Bit CMOS Microcontrollers |
| 中文描述： | 14引腳基于閃存的8位CMOS微控制器 |
| 文件頁(yè)數(shù)： | 17/132頁(yè) |
| 文件大小： | 2651K |
| 代理商： | 16F630 |
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2003 Microchip Technology Inc.
DS40039C-page 15
PIC16F630/676
2.2.2.5
PIR1 Register
The PIR1 register contains the interrupt flag bits, as
shown in Register 2-5.
REGISTER 2-5:
PIR1 — PERIPHERAL INTERRUPT REGISTER 1 (ADDRESS: 0Ch)
Note:
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.
R/W-0
R/W-0
U-0
U-0
R/W-0
U-0
U-0
R/W-0
EEIF
ADIF
—
—
CMIF
—
—
TMR1IF
bit 7
bit 0
bit 7
EEIF:
EEPROM Write Operation Interrupt Flag bit
1
= The write operation completed (must be cleared in software)
0
= The write operation has not completed or has not been started
bit 6
ADIF:
A/D Converter Interrupt Flag bit (PIC16F676 only)
1
= The A/D conversion is complete (must be cleared in software)
0
= The A/D conversion is not complete
bit 5-4
Unimplemented
: Read as ‘0’
bit 3
CMIF
: Comparator Interrupt Flag bit
1
= Comparator input has changed (must be cleared in software)
0
= Comparator input has not changed
bit 2-1
Unimplemented
: Read as ‘0’
bit 0
TMR1IF
: TMR1 Overflow Interrupt Flag bit
1
= TMR1 register overflowed (must be cleared in software)
0
= TMR1 register did not overflow
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
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