PIC16C925SLASHCL datasheet(130/182 Pages) MICROCHIP

130 / 182 page

PIC16C925/926

DS39544A-page 128

Preliminary

 2001 Microchip Technology Inc.

RRF

Rotate Right f through Carry

Syntax:

[ label ]

RRF f [,d]

Operands:

≤ f ≤ 127

∈ [0,1]

Operation:

See description below

Status Affected:

Encoding:

1100

dfff

ffff

Description:

The contents of register ’f’ are rotated

one bit to the right through the Carry

Flag. If ’d’ is 0, the result is placed in

the W register. If ’d’ is 1, the result is

placed back in register ’f’.

Words:

Cycles:

Q Cycle Activity:

Decode

Read

’f’

Process

data

Write to

destination

Example

RRF

REG1,0

Before Instruction:

REG1

1110 0110

After Instruction:

REG1

1110 0110

0111 0011

SLEEP

Syntax:

[ label ] SLEEP

Operands:

None

Operation:

00h

→ WDT,

→ WDT prescaler,

→ TO,

→ PD

Status Affected:

TO, PD

Encoding:

0000

0110

0011

Description:

The power-down status bit, PD is

cleared. Time-out status bit, TO is

set. Watchdog Timer and its

prescaler are cleared.

The processor is put into SLEEP

mode with the oscillator stopped.

See Section 12.8 for more details.

Words:

Cycles:

Q Cycle Activity:

Decode

Operation

Go to

Sleep

Example:

SLEEP

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