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P12C508 Datasheet(PDF) 44 Page - Microchip Technology

Part # P12C508
Description  8-Pin, 8-Bit CMOS Microcontroller
PDF  84 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

P12C508 Datasheet(HTML) 44 Page - Microchip Technology

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PIC12C5XX
DS40139A-page 44
Advanced Information
© 1996 Microchip Technology Inc.
MOVF
Move f
Syntax:
[
label ]
MOVF f,d
Operands:
0
≤ f ≤ 31
d
∈ [0,1]
Operation:
(f)
→ (dest)
Status Affected:
Z
Encoding:
0010
00df
ffff
Description:
The contents of register 'f' is moved to
destination 'd'. If 'd' is 0, destination is
the W register. If 'd' is 1, the destination
is file register 'f'. 'd' is 1 is useful to test
a file register since status flag Z is
affected.
Words:
1
Cycles:
1
Example:
MOVF
FSR,
0
After Instruction
W
=
value in FSR register
MOVLW
Move Literal to W
Syntax:
[
label ]
MOVLW k
Operands:
0
≤ k ≤ 255
Operation:
k
→ (W)
Status Affected:
None
Encoding:
1100
kkkk
kkkk
Description:
The eight bit literal 'k' is loaded into the
W register. The don’t cares will assem-
ble as 0s.
Words:
1
Cycles:
1
Example:
MOVLW
0x5A
After Instruction
W
=
0x5A
MOVWF
Move W to f
Syntax:
[
label ]
MOVWF
f
Operands:
0
≤ f ≤ 31
Operation:
(W)
→ (f)
Status Affected:
None
Encoding:
0000
001f
ffff
Description:
Move data from the W register to regis-
ter 'f'
.
Words:
1
Cycles:
1
Example:
MOVWF
TEMP_REG
Before Instruction
TEMP_REG
=
0xFF
W
=
0x4F
After Instruction
TEMP_REG
=
0x4F
W
=
0x4F
NOP
No Operation
Syntax:
[
label ]
NOP
Operands:
None
Operation:
No operation
Status Affected:
None
Encoding:
0000
0000
0000
Description:
No operation.
Words:
1
Cycles:
1
Example:
NOP



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