Individual Instruction Descriptions

MOV AP1,

3

; Point to

loc corresponding to

 

 

; extended

word in acc

MOVS A0,

*R0

;

R0 POINTS TO VALUE

IN MEMORY

EXTSGN A1

 

;

not string version

as above

Alternatively, the following code can do the same thing but requires more code:

 

MOV AP0, 0

;

POINT TO LSW OF ACCUM STRING

 

MOV AP1, 3

;

Point to loc corresponding to

 

 

;

extended word in acc

 

ZAC A1

;

INITIALIZE EXTENDED SIGN VALUE as positive

 

MOVS A0, *R0

;

R0 POINTS TO VALUE IN MEMORY

 

JNS POSITIVE ;

branch around negative extension,

 

 

;

accepting default pos extension

 

NOT A1

; INVERT EXTENDED SIGN WORD FOR NEG CASE POSITIVE

 

......

 

 

See Also

EXTSGN

 

 

Example 4.14.17.1

EXTSGNS A0~

 

 

Sign extend accumulator string A0~. See the above IMPORTANT note on the bug in this instruction at the present time.

Assembly Language Instructions

4-99

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Texas Instruments MSP50C614 manual Extsgn
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MSP50C614 specifications

The Texas Instruments MSP50C614 is a microcontroller that belongs to the MSP430 family, renowned for its low power consumption and versatile functionality. Primarily designed for embedded applications, this microcontroller is favored in various industries, including consumer electronics, industrial automation, and healthcare devices.

One of the standout features of the MSP50C614 is its ultra-low power technology, which enables it to operate in various power modes. This makes it ideal for battery-powered applications, where energy efficiency is crucial. The MSP430 architecture allows for a flexible power management system, ensuring that energy is conserved while providing robust performance.

The MSP50C614 is equipped with a 16-bit RISC CPU that delivers high performance while maintaining low power usage. With a maximum clock frequency of 16 MHz, it can execute most instructions in a single cycle, resulting in swift operation and responsive performance. This microcontroller also comes with a generous flash memory capacity, allowing developers to store large amounts of code and data conveniently.

In terms of peripherals, the MSP50C614 is highly versatile. It features a range of digital and analog input/output options, including multiple timers, GPIO ports, and various communication interfaces like UART, SPI, and I2C. This extensive set of peripherals allows for seamless integration with other components and simplifies the design of complex systems.

The integrated 12-bit Analog-to-Digital Converter (ADC) stands out as a valuable characteristic of the MSP50C614. This feature enables the microcontroller to convert physical analog signals into digital data, making it particularly useful for sensing applications and real-time monitoring.

Another noteworthy technology employed in the MSP50C614 is its support for low-voltage operations. With a broad supply voltage range, this microcontroller can function efficiently in diverse environments and is suitable for low-power applications, enhancing its practicality.

Moreover, Texas Instruments provides software support in the form of Code Composer Studio and various libraries that make it easier for developers to program and utilize the MSP50C614 effectively.

In summary, the Texas Instruments MSP50C614 microcontroller is a powerful, low-power solution equipped with the features and technologies necessary for efficient operation in a wide array of applications. Its blend of performance, flexibility, and energy efficiency makes it a popular choice among engineers and designers looking to create innovative, sustainable designs in the rapidly evolving tech landscape.
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