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PIC12F752 Datasheet(PDF) 148 Page - Microchip Technology

Part # PIC12F752
Description  8-Pin Flash-Based 8-Bit CMOS Microcontrollers
PDF  204 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PIC12F752 Datasheet(HTML) 148 Page - Microchip Technology

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PIC12F752/HV752
DS41576A-page 148
Preliminary
 2011 Microchip Technology Inc.
FIGURE 17-8:
INT PIN INTERRUPT TIMING
TABLE 17-6:
SUMMARY OF REGISTERS ASSOCIATED WITH INTERRUPTS
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Register on
Page
INTCON
GIE
PEIE
T0IE
INTE
IOCIE
T0IF
INTF
IOCIF
20
IOCAF
—
—
IOCAF5
IOCAF4
IOCAF3
IOCAF2
IOCAF1
IOCAF0
51
IOCAN
—
—
IOCAN5
IOCAN4
IOCAN3
IOCAN2
IOCAN1
IOCAN0
51
IOCAP
—
—
IOCAP5
IOCAP4
IOCAP3
IOCAP2
IOCAP1
IOCAP0
51
LATA
—
—LATA5
LATA4
—
LATA2
LATA1
LATA0
48
PIE1
TMR1GIE
ADIE
—
—
—
HLTMR1IE
TMR2IE
TMR1IE
21
PIR1
TMR1GIF
ADIF
—
—
—
HLTMR1IF
TMR2IF
TMR1IF
23
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
CLKIN
CLKOUT
INT pin
INTF flag
(INTCON reg.)
GIE bit
(INTCON reg.)
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 20.0 “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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