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PIC16F716 Scheda tecnica(PDF) 85 Page - Microchip Technology

Il numero della parte PIC16F716
Spiegazioni elettronici  8-bit Flash-based Microcontroller with A/D Converter and Enhanced Capture/Compare/PWM
PDF  136 Pages
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Produttore elettronici  MICROCHIP [Microchip Technology]
Homepage  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PIC16F716 Scheda tecnica(HTML) 85 Page - Microchip Technology

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© 2007 Microchip Technology Inc.
DS41206B-page 83
PIC16F716
RETFIE
Return from Interrupt
Syntax:
[ label ] RETFIE
Operands:
None
Operation:
TOS
→ PC,
1
→ GIE
Status Affected:
None
Description:
Return from Interrupt. Stack is
POPed and Top-of-Stack (TOS) is
loaded in the PC. Interrupts are
enabled by setting Global
Interrupt Enable bit, GIE
(INTCON<7>). This is a two-cycle
instruction.
Words:
1
Cycles:
2
Example:
RETFIE
After Interrupt
PC =
TOS
GIE =
1
RETLW
Return with literal in W
Syntax:
[ label ] RETLW k
Operands:
0
≤ k ≤ 255
Operation:
k
→ (W);
TOS
→ PC
Status Affected:
None
Description:
The W register is loaded with the
eight bit literal ‘k’. The program
counter is loaded from the top of
the stack (the return address).
This is a two-cycle instruction.
Words:
1
Cycles:
2
Example:
TABLE
CALL TABLE;W contains
table
;offset value
•
;W now has table value
•
•
ADDWF PC
;W = offset
RETLW k1
;Begin table
RETLW k2 ;
•
•
•
RETLW kn
; End of table
Before Instruction
W =
0x07
After Instruction
W =
value of k8
RETURN
Return from Subroutine
Syntax:
[ label ] RETURN
Operands:
None
Operation:
TOS
→ PC
Status Affected:
None
Description:
Return from subroutine. The stack
is POPed and the top of the stack
(TOS) is loaded into the program
counter. This is a two-cycle
instruction.



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