PIC12C508AT-04E-SN 데이터 시트보기 (PDF) - Microchip Technology

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PIC12C508AT-04E-SN

8-Pin, 8-Bit CMOS Microcontrollers

Microchip Technology 

PIC12C5XX

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 =

W

=

0xFF

0x4F

After Instruction

TEMP_REG =

W

=

0x4F

0x4F

NOP

No Operation

Syntax:

[ label ] NOP

Operands:

None

Operation:

No operation

Status Affected: None

Encoding:

0000 0000

Description:

No operation.

Words:

1

Cycles:

1

Example:

NOP

0000

DS40139E-page 54

© 1999 Microchip Technology Inc.

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