AT80251G2D-3CSUM(2006) View Datasheet(PDF) - Atmel Corporation

Part Name

Description

Manufacturer

AT80251G2D-3CSUM
(Rev.:2006)

8/16-bit Microcontroller with Serial Communication Interfaces

Atmel Corporation 

Table 27. Summary of Bit Instructions

Clear BitCLR <dest>dest opnd ← 0

Set BitSETB <dest>dest opnd ← 1

Complement BitCPL <dest>dest opnd ← ∅ bit

AND Carry with BitANL CY, <src>(CY) ← (CY) ∧ src opnd

AND Carry with Complement of BitANL CY, /<src>(CY) ← (CY) ∧ ∅ src opnd

OR Carry with BitORL CY, <src>(CY) ← (CY) ∨ src opnd

OR Carry with Complement of BitORL CY, /<src>(CY) ← (CY) ∨ ∅ src opnd

Move Bit to CarryMOV CY, <src>(CY) ← src opnd

Move Bit from CarryMOV <dest>, CYdest opnd ← (CY)

Mnemonic

<dest>,

<src>(1)

Comments

Binary Mode

Source Mode

Bytes States Bytes States

CLR

CY

bit51

Clear carry

Clear direct bit

1

1

1

1

2

2(3)

2

2(3)

bit

Clear direct bit

4

4(3)

3

3(3)

SETB

CY

bit51

bit

Set carry

Set direct bit

Set direct bit

1

1

1

1

2

2(3)

2

2(3)

4

4(3)

3

3(3)

CY

Complement carry

1

1

1

1

CPL

bit51

Complement direct bit

2

2(3)

2

2(3)

bit

CY, bit51

CY, bit

Complement direct bit

And direct bit to carry

And direct bit to carry

4

4(3)

3

3(3)

2

1(2)

2

1(2)

4

3(2)

3

2(2)

ANL

CY, /bit51

And complemented direct bit to

carry

2

1(2)

2

1(2)

CY, /bit

And complemented direct bit to

carry

4

3(2)

3

2(2)

CY, bit51

Or direct bit to carry

2

1(2)

2

1(2)

CY, bit

Or direct bit to carry

4

3(2)

3

2(2)

ORL

CY, /bit51

Or complemented direct bit to

carry

2

1(2)

2

1(2)

CY, /bit

Or complemented direct bit to

carry

4

3(2)

3

2(2)

CY, bit51

Move direct bit to carry

2

1(2)

2

1(2)

MOV

CY, bit

bit51, CY

Move direct bit to carry

Move carry to direct bit

4

3(2)

3

2(2)

2

2(3)

2

2(3)

bit, CY

Move carry to direct bit

4

4(3)

3

3(3)

Notes:

1. A shaded cell denotes an instruction in the C51 Architecture.

2. If this instruction addresses an I/O Port (Px, x = 0-3), add 1 to the number of states.

Add 2 if it addresses a Peripheral SFR.

3. If this instruction addresses an I/O Port (Px, x = 0-3), add 2 to the number of states.

Add 3 if it addresses a Peripheral SFR.

34 AT/TSC8x251G2D

4135F–8051–11/06

Share Link: