PIC18F2221 MICROCHIP [Microchip Technology], PIC18F2221 Datasheet - Page 301

• Manufacturer Part Number: PIC18F2221
• Description: 28/40/44-Pin Enhanced Flash Microcontrollers with 10-Bit A/D and nanoWatt Technology
• Manufacturer: MICROCHIP [Microchip Technology]

MOVLW
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example:
© 2007 Microchip Technology Inc.
Q Cycle Activity:
After Instruction
Decode
W
Q1
=
Move Literal to W
MOVLW k
0 ≤ k ≤ 255
k → W
None
The eight-bit literal ‘k’ is loaded into W.
1
1
MOVLW
literal ‘k’
Read
0000
Q2
5Ah
1110
5Ah
Process
Data
Q3
kkkk
Write to W
Q4
kkkk
Preliminary
MOVWF
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example:
Q Cycle Activity:
PIC18F4321 FAMILY
Before Instruction
After Instruction
Decode
W
REG
W
REG
Q1
=
=
=
=
register ‘f’
Move W to f
MOVWF
0 ≤ f ≤ 255
a ∈ [0,1]
(W) → f
None
Move data from W to register ‘f’.
Location ‘f’ can be anywhere in the
256-byte bank.
If ‘a’ is ‘0’, the Access Bank is selected.
If ‘a’ is ‘1’, the BSR is used to select the
GPR bank (default).
If ‘a’ is ‘0’ and the extended instruction
set is enabled, this instruction operates
in Indexed Literal Offset Addressing
mode whenever f ≤ 95 (5Fh). See
Section 24.2.3 “Byte-Oriented and
Bit-Oriented Instructions in Indexed
Literal Offset Mode” for details.
1
1
MOVWF
Read
0110
Q2
4Fh
FFh
4Fh
4Fh
REG, 0
f {,a}
111a
Process
Data
Q3
DS39689E-page 299
ffff
register ‘f’
Write
Q4
ffff