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PIC16F882-I bảng dữ liệu(PDF) 224 Page - Microchip Technology

tên linh kiện PIC16F882-I
Giải thích chi tiết về linh kiện  28/40/44-Pin, Enhanced Flash-Based 8-Bit CMOS Microcontrollers
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nhà sản xuất  MICROCHIP [Microchip Technology]
Trang chủ  http://www.microchip.com
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PIC16F882-I bảng dữ liệu(HTML) 224 Page - Microchip Technology

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PIC16F882/883/884/886/887
DS41291F-page 222
© 2009 Microchip Technology Inc.
FIGURE 14-8:
INT PIN INTERRUPT TIMING
TABLE 14-6:
SUMMARY OF INTERRUPT REGISTERS
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Value on
POR, BOR
Value on
all other
Resets
INTCON
GIE
PEIE
T0IE
INTE
RBIE
T0IF
INTF
RBIF
0000 000x
0000 000x
PIE1
—
ADIE
RCIE
TXIE
SSPIE
CCP1IE
TMR2IE
TMR1IE
-000 0000
-000 0000
PIE2
OSFIE
C2IE
C1IE
EEIE
BCLIE
ULPWUIE
—
CCP2IE
0000 00-0
0000 00-0
PIR1
—
ADIF
RCIF
TXIF
SSPIF
CCP1IF
TMR2IF
TMR1IF
-000 0000
-000 0000
PIR2
OSFIF
C2IF
C1IF
EEIF
BCLIF
ULPWUIF
—
CCP2IF
0000 00-0
0000 00-0
Legend:
x
= unknown, u = unchanged, — = unimplemented read as ‘0’, q = value depends upon condition.
Shaded cells are not used by the Interrupt module.
Q2
Q1
Q3
Q4
Q2
Q1
Q3
Q4
Q2
Q1
Q3
Q4
Q2
Q1
Q3
Q4
Q2
Q1
Q3
Q4
OSC1
CLKOUT
INT pin
INTF flag
(INTCON<1>)
GIE bit
(INTCON<7>)
INSTRUCTION FLOW
PC
Instruction
Fetched
Instruction
Executed
Interrupt Latency
PC
PC + 1
PC + 1
0004h
0005h
Inst (0004h)
Inst (0005h)
Dummy Cycle
Inst (PC)
Inst (PC + 1)
Inst (PC – 1)
Inst (0004h)
Dummy Cycle
Inst (PC)
—
Note 1:
INTF flag is sampled here (every Q1).
2:
Asynchronous interrupt latency = 3-4 TCY. Synchronous latency = 3 TCY, where TCY = instruction cycle time. Latency
is the same whether Inst (PC) is a single cycle or a 2-cycle instruction.
3:
CLKOUT is available only in INTOSC and RC Oscillator modes.
4:
For minimum width of INT pulse, refer to AC specifications in Section 17.0 “Electrical Specifications”.
5:
INTF is enabled to be set any time during the Q4-Q1 cycles.
(1)
(2)
(3)
(4)
(5)
(1)



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