Instruction Set

AND[.W]

Source AND destination

 

 

AND.B

Source AND destination

 

 

Syntax

AND

src,dst

or

AND.W src,dst

 

AND.B

src,dst

 

 

Operation

src .AND. dst −> dst

 

 

Description

The source operand and the destination operand are logically ANDed. The

 

result is placed into the destination.

Status Bits

N: Set if result MSB is set, reset if not set

 

Z: Set if result is zero, reset otherwise

 

C: Set if result is not zero, reset otherwise ( = .NOT. Zero)

 

V: Reset

 

 

 

Mode Bits

OSCOFF, CPUOFF, and GIE are not affected.

Example

The bits set in R5 are used as a mask (#0AA55h) for the word addressed by

 

TOM. If the result is zero, a branch is taken to label TONI.

 

MOV

#0AA55h,R5

; Load mask into register R5

 

AND

R5,TOM

 

; mask word addressed by TOM with R5

 

JZ

TONI

 

;

 

......

 

 

; Result is not zero

 

;

 

 

 

 

;

 

 

 

 

;

or

 

 

 

;

 

 

 

 

;

 

 

 

 

AND

#0AA55h,TOM

 

JZ

TONI

 

 

Example

The bits of mask #0A5h are logically ANDed with the low byte TOM. If the result

 

is zero, a branch is taken to label TONI.

 

AND.B

#0A5h,TOM

; mask Lowbyte TOM with 0A5h

 

JZ

TONI

 

;

 

......

 

 

; Result is not zero

3-24

RISC 16−Bit CPU

Page 59 Page 61
Page 60
Image 60
Texas Instruments MSP430x1xx manual And.W, And.B
Page 59 Page 61

MSP430x1xx specifications

The Texas Instruments MSP430x1xx series is a family of ultra-low-power microcontrollers that are highly regarded in the embedded systems community for their versatility and performance. Designed for applications ranging from portable instrumentation to low-power industrial devices, the MSP430x1xx combines flexibility and efficiency with advanced features tailored for energy-sensitive applications.

One of the standout characteristics of the MSP430x1xx is its ultra-low-power operation. This series offers several low-power modes that can significantly extend battery life in portable devices. The microcontroller can be in active mode, low-power mode, or even in a deep sleep state, allowing developers to optimize power consumption based on the application's requirements. In fact, some configurations can operate at just a few microamps, making it ideal for battery-operated devices.

Another key feature is the 16-bit RISC architecture that provides powerful processing capabilities while maintaining a low power profile. The MSP430x1xx series supports a maximum clock speed of 16 MHz, allowing for efficient task execution while consuming minimal energy. This architecture ensures that programs run smoothly while the microcontroller remains energy efficient.

The MSP430x1xx is equipped with various integrated peripherals, including analog-to-digital converters (ADCs), timers, and communication interfaces like UART, SPI, and I2C. The inclusion of a powerful ADC enables the microcontroller to handle sensor readings with high accuracy, making it suitable for applications like environmental monitoring and medical devices. The integrated timers provide essential functionality for real-time applications, allowing for event-driven programming and precise timing control.

Memory options in the MSP430x1xx series are also robust, with configurations offering flash memory sizes from 1 KB to 64 KB. This flexibility allows developers to choose the optimal memory size for their specific applications, accommodating a wide range of requirements.

Additionally, the MSP430x1xx microcontrollers are designed with a wide operating voltage range, typically from 1.8V to 3.6V, making them compatible with various power sources and further enhancing their usability in diverse applications.

In summary, the Texas Instruments MSP430x1xx series of microcontrollers is an excellent choice for developers seeking low-power, high-performance solutions for embedded applications. With an efficient architecture, a rich set of peripherals, and flexible memory options, these microcontrollers are positioned to meet the growing demands of modern electronic designs, particularly in battery-powered and energy-sensitive applications.
Top Page Image Contents