FS9912

Rev. 3.6

21/34

HALT

Stop CPU Core Clock

Syntax

HALT

Operation

CPU Stop

Status Affected

None

Description

CPU clock is stopped. Oscillator is running. CPU can be waked up by internal and

external interrupt sources.

SLEEP

Oscillator stop

Syntax

SLEEP

Operation

CPU oscillator is stopped

Status Affected

PD

Description

CPU oscillator is stopped. CPU can be waked up by external interrupt sources.

PS. Please make sure all interrupt flags are cleared before running SLEEP; "NOP" command must follow HALT

and SLEEP commands.

CLRWDT

Clear watch dog timer counter

Syntax

CLRWDT

Operation

Watch dog timer counter will reset

Status Affected

None

Description

CLRWDT instruction will reset watch dog timer counter.

BSF

Bit Set f

Syntax

BSF

f, b

Operation

1 => M (f) [b]

Status Affected

None

Description

Bit b in M (f) is set to 1.

BCF

Bit Clear f

Syntax

BCF

f, b

Operation

0 => M (f) [b]

Status Affected

None

Description

Bit b in M (f) is reset to 0.

BTFSC

Bit Test skip if Clear

Syntax

BTFSCf, b

Operation

Skip if M (f) [b] = 0

Status Affected

None

Description

If bit 'b' in M (f) is 0, the next fetched instruction is discarded and a NOP is

executed instead making it a two-cycle instruction.

BTFSS

Bit Test skip if Set

Syntax

BTFSSf, b

Operation

Skip if M (f) [b] = 1

Status Affected

None

Description

If bit 'b' in M (f) is 1, the next fetched instruction is discarded and a NOP is

executed instead making it a two-cycle instruction.