4. DMA Registers | Texas Instruments MSP430x1xx instruction

8.3 DMA Registers

The DMA registers are listed in Table 8−4:

Table 8−4. DMA Registers

Register	Short Form	Register Type	Address	Initial State
DMA control 0	DMACTL0	Read/write	0122h	Reset with POR
DMA control 1	DMACTL1	Read/write	0124h	Reset with POR
DMA channel 0 control	DMA0CTL	Read/write	01E0h	Reset with POR
DMA channel 0 source address	DMA0SA	Read/write	01E2h	Unchanged
DMA channel 0 destination address	DMA0DA	Read/write	01E4h	Unchanged
DMA channel 0 transfer size	DMA0SZ	Read/write	01E6h	Unchanged
DMA channel 1 control	DMA1CTL	Read/write	01E8h	Reset with POR
DMA channel 1 source address	DMA1SA	Read/write	01EAh	Unchanged
DMA channel 1 destination address	DMA1DA	Read/write	01ECh	Unchanged
DMA channel 1 transfer size	DMA1SZ	Read/write	01EEh	Unchanged
DMA channel 2 control	DMA2CTL	Read/write	01F0h	Reset with POR
DMA channel 2 source address	DMA2SA	Read/write	01F2h	Unchanged
DMA channel 2 destination address	DMA2DA	Read/write	01F4h	Unchanged
DMA channel 2 transfer size	DMA2SZ	Read/write	01F6h	Unchanged

8-18

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.

Texas Instruments MSP430x1xx manual 4. DMA Registers

Models: MSP430x1xx

8.3 DMA Registers

Table 8−4. DMA Registers

Register

MSP430x1xx specifications