参数资料
型号: PIC16LC556-04/SS
元件分类: 微控制器/微处理器
英文描述: 8-BIT, OTPROM, 4 MHz, RISC MICROCONTROLLER, PDSO20
封装: 0.209 INCH, PLASTIC, SSOP-20
文件页数: 14/104页
文件大小: 697K
代理商: PIC16LC556-04/SS
1996 Microchip Technology Inc.
Preliminary
DS40143A-page 17
PIC16C55X
4.2.2.3
INTCON REGISTER
The INTCON register is a readable and writable
register which contains the various enable and ag bits
for all interrupt sources.
Note:
Interrupt ag bits get set when an interrupt
condition occurs regardless of the state of
its corresponding enable bit or the global
enable bit, GIE (INTCON<7>).
FIGURE 4-8:
INTCON REGISTER (ADDRESS 0BH OR 8BH)
R/W-0
R/W-x
GIE
T0IE
INTE
RBIE
T0IF
INTF
RBIF
R
= Readable bit
W = Writable bit
- n = Value at POR reset
- x = Unknown at POR reset
bit7
bit0
bit 7:
GIE: Global Interrupt Enable bit
1 = Enables all un-masked interrupts
0 = Disables all interrupts
bit 6:
— =
Reserved for future use. Always maintain this bit clear.
bit 5:
T0IE: TMR0 Overow Interrupt Enable bit
1 = Enables the TMR0 interrupt
0 = Disables the TMR0 interrupt
bit 4:
INTE: RB0/INT External Interrupt Enable bit
1 = Enables the RB0/INT external interrupt
0 = Disables the RB0/INT external interrupt
bit 3:
RBIE: RB Port Change Interrupt Enable bit
1 = Enables the RB port change interrupt
0 = Disables the RB port change interrupt
bit 2:
T0IF: TMR0 Overow Interrupt Flag bit
1 = TMR0 register has overowed (must be cleared in software)
0 = TMR0 register did not overow
bit 1:
INTF: RB0/INT External Interrupt Flag bit
1 = The RB0/INT external interrupt occurred (must be cleared in software)
0 = The RB0/INT external interrupt did not occur
bit 0:
RBIF: RB Port Change Interrupt Flag bit
1 = When at least one of the RB7:RB4 pins changed state (must be cleared in software)
0 = None of the RB7:RB4 pins have changed state
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