Texas Instruments MSP50C614 manual RET²

Models: MSP50C614

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Page 129
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Instruction Classification

Table 4±27. Class 5 Instruction Description (Continued)

 

 

 

 

 

 

 

 

 

C5

 

Mnemonic

Description

 

 

 

 

 

 

 

0

1

0

1

1

MOV {adrs}, TOS

Store the contents of the top of stack (TOS) register to the data memory

 

 

 

 

 

 

location referred by addressing mode {adrs}. Transfer status is modified.

 

 

 

 

 

 

 

0

1

1

0

0

STAG {adrs}

Store 1 to the 17th bit of data memory location referred by {adrs}. Set the

 

 

 

 

 

 

tag bit.

 

 

 

 

 

 

 

0

1

1

0

1

RTAG {adrs}

Store 0 to the 17th bit of data memory location referred by {adrs}. Clear

 

 

 

 

 

 

the tag bit.

 

 

 

 

 

 

 

0

1

1

1

n±1

MOVT {adrs}, TFn

Store TF1 bit if n=1, TF2 bit if n=0 status bit to 17th bit of data memory

 

 

 

 

 

 

location referred by addressing mode {adrs}.

 

 

 

 

 

 

 

1

0

0

0

0

MOV SV, {adrs}4

Load shift value (SV) register with contents of the location referred by ad-

 

 

 

 

 

 

dressing mode {adrs}. Transfer status is modified.

 

 

 

 

 

 

 

1

0

0

0

1

MOV PH, {adrs}

Load Product High (PH) register with content of data memory location

 

 

 

 

 

 

value referred by addressing mode {adrs}. Transfer is status modified.

 

 

 

 

 

 

 

1

0

0

1

0

MOV TOS, {adrs}

Load top of stack (TOS) register with content of data memory location

 

 

 

 

 

 

referred by addressing mode {adrs}.

 

 

 

 

 

 

 

1

0

0

1

1

MOV STR, {adrs}8

Load String (STR) register with content of data memory location referred

 

 

 

 

 

 

by addressing mode {adrs}. Only the lower 8 bits are loaded. Transfer

 

 

 

 

 

 

status modified.

 

 

 

 

 

 

 

1

0

1

n

n

MOV APn, {adrs}

Load lower 5 bits with content of data memory location referred by

 

 

 

 

 

 

addressing mode {adrs} to accumulator pointer (AP) register n. Transfer

 

 

 

 

 

 

status is modified (16 bit value).

 

 

 

 

 

 

 

1

1

0

0

0

MOV MR, {adrs}

Load Multiplier (MR) register with content of data memory location

 

 

 

 

 

 

referred by addressing mode {adrs} and set the multiplier signed mode

 

 

 

 

 

 

(UM=0 in STAT register). Transfer status is modified.

 

 

 

 

 

 

 

1

1

0

0

1

MOVU MR, {adrs}

Load Multiplier (MR) register with content of data memory location

 

 

 

 

 

 

referred by addressing mode {adrs} and set the multiplier unsigned mode

 

 

 

 

 

 

(UM=1 in STAT register). Transfer status is modified.

 

 

 

 

 

 

 

1

1

0

1

0

MULR {adrs}

Multiply MR register by content of data memory location referred by

 

 

 

 

 

 

addressing mode {adrs}, add 0x00008000 to the 32 bit product to

 

 

 

 

 

 

produce a rounding on the upper 16 bits. Store the upper rounded 16 bits

 

 

 

 

 

 

to the PH register. No status change.

 

 

 

 

 

 

 

1

1

0

1

1

MUL {adrs}

Multiply MR register by content of data memory location referred by

 

 

 

 

 

 

addressing mode {adrs} and store the most significant 16 bits of product

 

 

 

 

 

 

into the PH register. No status change.

 

 

 

 

 

 

 

1

1

1

0

0

RET²

Return from subroutine. Load data memory location value addressed by

 

 

 

 

 

 

R7 (STACK) to program counter.

 

 

 

 

 

 

 

1

1

1

0

1

IRET²

Return from interrupt routine. Load data memory location value ad-

 

 

 

 

 

 

dressed by R7 (STACK) to program counter.

 

 

 

 

 

 

 

² The entire 17 bit is encoded. See Table 4±26.

Assembly Language Instructions

4-37

Page 129
Image 129
Texas Instruments MSP50C614 manual RET²

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.