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PIC16 데이터시트(PDF) 74 Page - Microchip Technology

부품명 PIC16
상세설명  20-Pin Flash, 8-Bit Microcontrollers with XLP Technology
PDF  418 Pages
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제조업체  MICROCHIP [Microchip Technology]
홈페이지  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PIC16 데이터시트(HTML) 74 Page - Microchip Technology

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PIC16(L)F1508/9
DS40001609C-page 74
 2011-2013 Microchip Technology Inc.
FIGURE 7-3:
INT PIN INTERRUPT TIMING
Q2
Q1
Q3 Q4
Q2
Q1
Q3 Q4
Q2
Q1
Q3 Q4
Q2
Q1
Q3 Q4
Q2
Q1
Q3 Q4
FOSC
CLKOUT
INT pin
INTF
GIE
INSTRUCTION FLOW
PC
Instruction
Fetched
Instruction
Executed
Interrupt Latency
PC
PC + 1
PC + 1
0004h
0005h
Inst (0004h)
Inst (0005h)
Forced NOP
Inst (PC)
Inst (PC + 1)
Inst (PC – 1)
Inst (0004h)
Forced NOP
Inst (PC)
—
Note 1: INTF flag is sampled here (every Q1).
2: Asynchronous interrupt latency = 3-5 TCY. Synchronous latency = 3-4 TCY, where TCY = instruction cycle time.
Latency is the same whether Inst (PC) is a single cycle or a 2-cycle instruction.
3: For minimum width of INT pulse, refer to AC specifications in Section 29.0 “Electrical Specifications”.
4: INTF is enabled to be set any time during the Q4-Q1 cycles.
(1)
(2)
(3)
(4)
(1)



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