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参数资料
型号： RFPIC12F675K-E/SS
元件分类： 微控制器/微处理器
英文描述： 8-BIT, FLASH, 20 MHz, RISC MICROCONTROLLER, PDSO20
封装： 0.209 INCH, PLASTIC, MO-150, SSOP-20
文件页数： 28/123页
文件大小： 5438K
代理商： RFPIC12F675K-E/SS
2003 Microchip Technology Inc.
Preliminary
DS70091A-page 11
rfPIC12F675
2.2.2.3
INTCON Register
The INTCON register is a readable and writable
register, which contains the various enable and flag bits
for TMR0 register overflow, GPIO port change and
external GP2/INT pin interrupts.
REGISTER 2-3:
INTCON — INTERRUPT CONTROL REGISTER (ADDRESS: 0Bh OR 8Bh)
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
GIE
PEIE
T0IE
INTE
GPIE
T0IF
INTF
GPIF
bit 7
bit 0
bit 7
GIE: Global Interrupt Enable bit
1 = Enables all unmasked interrupts
0 = Disables all interrupts
bit 6
PEIE: Peripheral Interrupt Enable bit
1 = Enables all unmasked peripheral interrupts
0 = Disables all peripheral interrupts
bit 5
T0IE: TMR0 Overflow Interrupt Enable bit
1 = Enables the TMR0 interrupt
0 = Disables the TMR0 interrupt
bit 4
INTE: GP2/INT External Interrupt Enable bit
1 = Enables the GP2/INT external interrupt
0 = Disables the GP2/INT external interrupt
bit 3
GPIE: Port Change Interrupt Enable bit(1)
1 = Enables the GPIO port change interrupt
0 = Disables the GPIO port change interrupt
bit 2
T0IF: TMR0 Overflow Interrupt Flag bit(2)
1 = TMR0 register has overflowed (must be cleared in software)
0 = TMR0 register did not overflow
bit 1
INTF: GP2/INT External Interrupt Flag bit
1 = The GP2/INT external interrupt occurred (must be cleared in software)
0 = The GP2/INT external interrupt did not occur
bit 0
GPIF: Port Change Interrupt Flag bit
1 = When at least one of the GP5:GP0 pins changed state (must be cleared in software)
0 = None of the GP5:GP0 pins have changed state
Note 1: IOC register must also be enabled to enable an interrupt-on-change.
2: T0IF bit is set when TIMER0 rolls over. TIMER0 is unchanged on RESET and
should be initialized before clearing T0IF bit.
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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