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Intel 8XC251SA Table A-26. Summary of Bit Instructions, Move Bit from Carry MOV bit,CY, Setb

Models: Embedded Microcontroller 8XC251SP 8XC251SA 8XC251SQ 8XC251SB

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INSTRUCTION SET REFERENCE

 

 

Table A-26. Summary of Bit Instructions

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Clear Bit

 

 

CLR bit

bit ← 0

 

 

 

 

 

Set Bit

 

 

SETB bit

bit ← 1

 

 

 

 

 

Complement Bit

 

CPL bit

bit← Øbit

 

 

 

 

 

AND Carry with Bit

 

ANL CY,bit

CY ← CY Λ bit

 

 

 

AND Carry with Complement of Bit

ANL CY,/bit

CY ← CY Λ Øbit

 

 

 

OR Carry with Bit

 

ORL CY,bit

CY ← CY V bit

 

 

 

ORL Carry with Complement of Bit

ORL CY,/bit

CY ← CY V Øbit

 

 

 

Move Bit to Carry

 

MOV CY,bit

CY ← bit

 

 

 

 

 

Move Bit from Carry

 

MOV bit,CY

bit ← CY

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Mnemonic

<src>,<dest>

 

Notes

 

Binary Mode

Source Mode

 

 

Bytes

 

States

Bytes

 

States

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CY

Clear carry

 

1

 

1

1

 

1

CLR

bit51

Clear dir bit

 

2

 

2 (2)

2

 

2 (2)

 

bit

Clear dir bit

 

4

 

4

3

 

3

 

 

 

 

 

 

 

 

 

 

 

 

CY

Set carry

 

 

1

 

1

1

 

1

SETB

bit51

Set dir bit

 

 

2

 

2 (2)

2

 

2 (2)

 

bit

Set dir bit

 

 

4

 

4 (2)

3

 

3 (2)

 

 

 

 

 

 

 

 

 

 

 

CY

Complement carry

 

1

 

1

1

 

1

CPL

bit51

Complement dir bit

 

2

 

2 (2)

2

 

2 (2)

 

bit

Complement dir bit

 

4

 

4 (2)

3

 

3 (2)

 

 

 

 

 

 

 

 

 

 

ANL

CY,bit51

AND dir bit to carry

 

2

 

1 (3)

2

 

1 (3)

CY,bit

AND dir bit to carry

 

4

 

3 (3)

3

 

2 (3)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ANL/

CY,/bit51

AND complemented dir bit to carry

 

2

 

1 (3)

2

 

1 (3)

CY,/bit

AND complemented dir bit to carry

 

4

 

3 (3)

3

 

2 (3)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ORL

CY,bit51

OR dir bit to carry

 

2

 

1 (3)

2

 

1 (3)

CY,bit

OR dir bit to carry

 

4

 

3 (3)

3

 

2 (3)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ORL/

CY,/bit51

OR complemented dir bit to carry

 

2

 

1 (3)

2

 

1 (3)

CY,/bit

OR complemented dir bit to carry

 

4

 

3 (3)

3

 

2 (3)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CY,bit51

Move dir bit to carry

 

2

 

1 (3)

2

 

1 (3)

MOV

CY,bit

Move dir bit to carry

 

4

 

3 (3)

3

 

2 (3)

 

 

 

 

 

 

 

 

 

 

bit51,CY

Move carry to dir bit

 

2

 

2 (2)

2

 

2 (2)

 

 

 

 

 

bit,CY

Move carry to dir bit

 

4

 

4 (2)

3

 

3 (2)

 

 

 

 

 

 

 

 

 

 

 

NOTES:

1.A shaded cell denotes an instruction in the MCS® 51 architecture.

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

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

A-23

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Intel 8XC251SA, 8XC251SP, 8XC251SQ, 8XC251SB Table A-26. Summary of Bit Instructions, Move Bit from Carry MOV bit,CY, Setb
Page 274 Page 276

Embedded Microcontroller, 8XC251SP, 8XC251SA, 8XC251SQ, 8XC251SB specifications

The Intel 8XC251 series of embedded microcontrollers is a family of versatile and powerful devices, designed to meet the demands of a wide range of applications. With models such as the 8XC251SB, 8XC251SQ, 8XC251SA, and 8XC251SP, this series offers unique features while maintaining a high level of performance and reliability.

At the heart of the 8XC251 microcontrollers is the 8051 architecture, which provides a 16-bit processor capable of executing complex instructions efficiently. This architecture not only allows for a rich instruction set but also facilitates programming in assembly language and higher-level languages like C, which are essential for developing sophisticated embedded systems.

One of the significant features of the 8XC251 family is its integrated peripherals, including timer/counters, serial communication interfaces, and interrupt systems. These peripherals enable developers to implement timing functions, data communication, and real-time processing, all of which are crucial in modern embedded applications. The 8XC251SB and 8XC251SQ models, for instance, come equipped with multiple I/O ports that allow for interfacing with other devices and systems, enhancing their functionality in various environments.

The memory architecture of the 8XC251 devices is noteworthy, featuring on-chip ROM, RAM, and EEPROM. The on-chip memory allows for fast access times, which is essential for executing programs efficiently. Moreover, the EEPROM serves as non-volatile memory, enabling the storage of configuration settings and important data that must be retained even when power is lost.

In terms of operating voltage, the 8XC251 devices are designed to operate in a wide range, typically between 4.0V and 6.0V. This flexibility makes them suitable for battery-powered applications, where energy efficiency is critical. The power management features, including reduced power modes, further enhance their suitability for portable devices.

Lastly, the 8XC251 series is supported by a wide range of development tools and resources, allowing engineers and developers to streamline the development process. This support, combined with the microcontrollers' robust features, makes the Intel 8XC251 family a reliable choice for various embedded applications, such as industrial automation, automotive systems, and consumer electronics.

Overall, the Intel 8XC251SB, 8XC251SQ, 8XC251SA, and 8XC251SP deliver high performance, versatility, and ease of use, making them a preferred choice for embedded system designers looking to develop efficient and effective solutions.