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PIC16F616-I/MLQTP Datasheet(PDF) 119 Page - Microchip Technology

Part # PIC16F616-I/MLQTP
Description  14-Pin, Flash-Based 8-Bit CMOS Microcontrollers
PDF  180 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PIC16F616-I/MLQTP Datasheet(HTML) 119 Page - Microchip Technology

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© 2007 Microchip Technology Inc.
Preliminary
DS41288C-page 117
PIC16F610/616/16HV610/616
FIGURE 12-8:
INT PIN INTERRUPT TIMING
TABLE 12-6:
SUMMARY OF REGISTERS ASSOCIATED WITH INTERRUPTS
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
RAIE
T0IF
INTF
RAIF
0000 0000
0000 0000
IOCA
—
—
IOCA5
IOCA4
IOCA3
IOCA2
IOCA1
IOCA0
--00 0000
--00 0000
PIR1
—ADIF(1)
CCP1IF(1)
C2IF
C1IF
—TMR2IF(1)
TMR1IF
-000 0-00
-000 0-00
PIE1
—ADIE(1)
CCP1IE(1)
C2IE
C1IE
—TMR2IE(1)
TMR1IE
-000 0-00
-000 0-00
Legend:
x
= unknown, u = unchanged, – = unimplemented read as ‘0’, q = value depends upon condition.
Shaded cells are not used by the interrupt module.
Note
1:
PIC16F616/16HV616 only.
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 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 15.0 “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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