PIC16LC925T-I/CL View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

PIC16LC925T-I/CL

64/68-Pin CMOS Microcontrollers with LCD Driver

Microchip Technology 

PIC16C925/926

BCF

Syntax:

Operands:

Operation:

Status Affected:

Encoding:

Description:

Words:

Cycles:

Q Cycle Activity:

Bit Clear f

[ label ] BCF f [,b]

0 ≤ f ≤ 127

0≤b≤7

0 → (f<b>)

None

01 00bb bfff

ffff

Bit ’b’ in register ’f’ is cleared.

1

1

Q1

Q2

Q3

Q4

Decode

Read

register

’f’

Process Write

data register ’f’

Example

BCF

Before Instruction:

FLAG_REG =

After Instruction:

FLAG_REG =

FLAG_REG, 7

0xC7

0x47

BSF

Syntax:

Operands:

Operation:

Status Affected:

Encoding:

Description:

Words:

Cycles:

Q Cycle Activity:

Bit Set f

[ label ] BSF f [,b]

0 ≤ f ≤ 127

0≤b≤7

1 → (f<b>)

None

01 01bb bfff

ffff

Bit ’b’ in register ’f’ is set.

1

1

Q1

Q2

Q3

Q4

Decode Read Process Write

register data register ’f’

’f’

Example

BSF

FLAG_REG, 7

Before Instruction:

FLAG_REG =

After Instruction:

FLAG_REG =

0x0A

0x8A

BTFSC

Syntax:

Operands:

Operation:

Status Affected:

Encoding:

Description:

Words:

Cycles:

Q Cycle Activity:

Bit Test, Skip if Clear

[ label ] BTFSC f [,b]

0 ≤ f ≤ 127

0≤b≤7

skip if (f<b>) = 0

None

01

10bb bfff

ffff

If bit ’b’ in register ’f’ is ’1’, then the

next instruction is executed.

If bit ’b’ in register ’f’ is ’0’, then the

next instruction is discarded, and a

NOP is executed instead, making this a

2TCY instruction.

1

1(2)

Q1

Q2

Q3

Q4

Decode

Read

register ’f’

Process

data

No

Operation

If Skip:

(2nd Cycle)

Q1

Q2

Q3

Q4

No

No

No

No

Operation Operation Operation Operation

Example

HERE

FALSE

TRUE

BTFSC

GOTO

•

•

•

FLAG,1

PROCESS_CODE

Before Instruction:

PC

= address HERE

After Instruction:

if FLAG<1> =

PC

=

if FLAG<1> =

PC

=

0,

address TRUE

1,

address FALSE

 2001 Microchip Technology Inc.

Preliminary

DS39544A-page 117

Share Link: