Instruction Syntax and Addressing Modes

Example 4.3.20

MOV A3, *R6+0x10

Refer to the initial processor state in Table 4±8 before execution of this instruc- tion. Load A3 (AC29) with the contents of byte address, R6+0x10. The value of R6 is unchanged. Final result, AC29=0x0112.

Example 4.3.21 ADD A0~, A0, *R6+0x10, ++A

Refer to the initial processor state in Table 4±8 before execution of this instruc- tion. Preincrement AP0. After preincrement, A0 is AC3 and A0~ is AC19. Add AC3 to the contents of byte address R6+0x10 and store the result in AC19. The value in R6 is unchanged. Final result, AC19 = AC3 + *(R6+0x10) = 0xFEED + *0x01FA = 0xFEED + 0x0112 = 0xFFFF.

4.3.6.3Long Relative

Long relative addressing selects one of the 8 address registers (Rx) as a base value and adds the value of the second word operand. The base address reg- ister is not modified.

Syntax:

name [dest,] [src,] *Rx+offset16 [, next A] name *Rx+offset16 [, src] [, next A]

Rx (x = 0 ± 7)

Address

Memory Operand

+

Operand

Example 4.3.22 MOV A0~, *R1+0x0254, ++A

Refer to the initial processor state in Table 4±8 before execution of this instruc- tion. Preincrement A0. After preincrement, A0 is AC3 and A0~ is AC19. Load the contents of the data memory byte location R1+0x0254 into AC19. R1 re- mains unchanged. Final result, AP0=3, AC19=*(R1+0x0254) = *0x022A = 0x0400.

Example 4.3.23 MOV *R7+0x0442, MR

Refer to the initial processor state in Table 4±8 before execution of this instruc- tion. Store the value in MR to data memory byte location, R7+0x0442. R7 re- mains unchanged. Final result, *0x02A1 = 0x1A15.

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Texas Instruments MSP50C614 manual MOV A3, *R6+0x10, Long Relative

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.