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PIC16F684-E/ST bảng dữ liệu(PDF) 104 Page - Microchip Technology

tên linh kiện PIC16F684-E/ST
Giải thích chi tiết về linh kiện  14-Pin Flash-Based, 8-Bit CMOS Microcontrollers with nanoWatt Technology
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nhà sản xuất  MICROCHIP [Microchip Technology]
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PIC16F684
DS41202C-page 102
Preliminary
 2004 Microchip Technology Inc.
12.4.2
TMR0 INTERRUPT
An overflow (FFh
→ 00h) in the TMR0 register will set
the T0IF (INTCON<2>) bit. The interrupt can be
enabled/disabled
by
setting/clearing
T0IE
(INTCON<5>) bit. See Section 5.0 “Timer0 Module”
for operation of the Timer0 module.
12.4.3
PORTA INTERRUPT
An input change on PORTA change sets the RAIF
(INTCON<0>) bit. The interrupt can be enabled/
disabled by setting/clearing the RAIE (INTCON<3>)
bit. Plus, individual pins can be configured through the
IOCA register.
FIGURE 12-7:
INTERRUPT LOGIC
Note:
If a change on the I/O pin should occur
when the read operation is being executed
(start of the Q2 cycle), then the RAIF
interrupt flag may not get set.
TMR1IF
TMR1IE
C1IF
C1IE
T0IF
T0IE
INTF
INTE
RAIF
RAIE
GIE
PEIE
Wake-up (If in Sleep mode)
Interrupt to CPU
EEIE
EEIF
ADIF
ADIE
IOC-RA0
IOCA0
IOC-RA1
IOCA1
IOC-RA2
IOCA2
IOC-RA3
IOCA3
IOC-RA4
IOCA4
IOC-RA5
IOCA5
TMR2IF
TMR2IE
CCP1IF
CCP1IE
OSFIF
OSFIE
C2IF
C2IE



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