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PIC16F913 Datasheet(PDF) 199 Page - Microchip Technology

Part # PIC16F913
Description  28/40/44-Pin Flash-Based, 8-Bit CMOS Microcontrollers with LCD Driver and nanoWatt Technology
PDF  272 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PIC16F913 Datasheet(HTML) 199 Page - Microchip Technology

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© 2005 Microchip Technology Inc.
Preliminary
DS41250E-page 197
PIC16F917/916/914/913
FIGURE 16-8:
INT PIN INTERRUPT TIMING
TABLE 16-6:
SUMMARY OF INTERRUPT REGISTERS
Addr
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
0Bh,
8Bh
INTCON
GIE
PEIE
T0IE
INTE
RBIE
T0IF
INTF
RBIF
0000 000x 0000 000x
0Ch
PIR1
EEIF
ADIF
RCIF
TXIF
SSPIF
CCP1IF
TMR2IF TMR1IF 0000 0000 0000 0000
0Dh
PIR2
OSFIF
C2IF
C1IF
LCDIF
—LVDIF
—
CCP2IF 0000 -0-0 0000 -0-0
8Ch
PIE1
EEIE
ADIE
RCIE
TXIE
SSPIE
CCP1IE
TMR2IE TMR1IE 0000 0000 0000 0000
8Dh
PIE2
OSFIE
C2IE
C1IE
LCDIE
—LVDIE
—
CCP2IE 0000 -0-0 0000 -0-0
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
CLKO(3)
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:
CLKO is available only in INTOSC and RC Oscillator modes.
4:
For minimum width of INT pulse, refer to AC specifications in Section 19.0 “Electrical Specifications”.
5:
INTF is enabled to be set any time during the Q4-Q1 cycles.
(1)
(2)
(4)
(5)
(1)



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