Reduced Power Modes

Figure 2±10. Instruction Execution and Timing

CLOCK

 

 

 

 

 

 

 

 

FETCH

N

N+1

N+2

N+3

N+4

N+5

N+6

N+7

DECODE

N±1

N

N+1

N+2

N+3

N+4

N+5

 

EXEC

N±2

N±1

N

N+1

N+2

N+3

N+4

N+5

DATA ADD

N±1

N

N+1

N+2

N+3

N+4

N+5

PC ADD

N

N+1

N+2

N+3

N+4

N+5

N+6

N+7

2.11 Reduced Power Modes

The power consumption of the C614 is greatest when the DAC circuitry is called into operation, i.e., when the synthesizer speaks. There are, however, a number of reduced power modes (sleep states) on the C614 which may be engaged during quiet intervals.

The performance and flexibility of the reduced power modes make the C614 ideal for battery powered operation. Refer to Chapter 8, MSP50C614 Electrical Specifications, for a full description of the electrical characteristics, including the acceptable power-supply ranges.

The reduced power state on the C614 is achieved by a call to the IDLE instruction. The idle state is released by some interrupt event. Different modes (or levels) of reduced-power are brought about by controlling a number of different core and periphery components on the device. These components are independently enabled/disabled before engaging the IDLE instruction. The number of subsystems left running during sleep directly impacts the overall power consumption during that state. The various subsystems that determine (or are affected by) the depth of sleep include the:

-Processor core, which is driven by the CPU clock

-PLL clock circuitry

-PLL reference oscillator

-C614 periphery, which is driven by the master clock

-TIMER1 and TIMER2

-PDM pulsing

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Texas Instruments MSP50C614 manual Reduced Power Modes

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.