PIC16LC924-08/CL 데이터 시트보기 (PDF) - Microchip Technology

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PIC16LC924-08/CL

8-Bit CMOS Microcontroller with LCD Driver

Microchip Technology 

PIC16C9XX

BSF

Bit Set f

Syntax:

[label] BSF f,b

Operands:

0 ≤ f ≤ 127

0≤b≤7

Operation:

1 → (f<b>)

Status Affected: None

Encoding:

01 01bb bfff ffff

Description:

Bit 'b' in register 'f' is set.

Words:

1

Cycles:

1

Q Cycle Activity:

Q1

Q2 Q3

Q4

Decode

Read

register

'f'

Process Write

data register 'f'

Example

BSF

FLAG_REG, 7

Before Instruction

FLAG_REG = 0x0A

After Instruction

FLAG_REG = 0x8A

BTFSC

Bit Test, Skip if Clear

Syntax:

[label] BTFSC f,b

Operands:

0 ≤ f ≤ 127

0≤b≤7

Operation:

skip if (f<b>) = 0

Status Affected: None

Encoding:

01

10bb

bfff ffff

Description:

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.

Words:

1

Cycles:

1(2)

Q Cycle Activity:

Q1

Q2

Q3

Q4

Decode

Read Process

No-

register 'f' data 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> = 0,

PC = address TRUE

if FLAG<1>=1,

PC = address FALSE

© 1997 Microchip Technology Inc.

DS30444E - page 123

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