Dint, Disable Interrupt | Texas Instruments MSP430x1xx manual

Instruction Set

* DINT	Disable (general) interrupts
Syntax	DINT
Operation	0 → GIE
	or
	(0FFF7h .AND. SR → SR			/ .NOT.src .AND. dst −> dst)
Emulation	BIC		#8,SR
Description	All interrupts are disabled.
	The constant 08h is inverted and logically ANDed with the status register (SR).
	The result is placed into the SR.
Status Bits	Status bits are not affected.
Mode Bits	GIE is reset. OSCOFF and CPUOFF are not affected.
Example	The general interrupt enable (GIE) bit in the status register is cleared to allow
	a nondisrupted move of a 32-bit counter. This ensures that the counter is not
	modified during the move by any interrupt.
	DINT			; All interrupt events using the GIE bit are disabled
	NOP
	MOV		COUNTHI,R5	; Copy counter
	MOV		COUNTLO,R6
	EINT			; All interrupt events using the GIE bit are enabled

		Note:	Disable Interrupt
		If any code sequence needs to be protected from interruption, the DINT
		should be executed at least one instruction before the beginning of the
		uninterruptible sequence, or should be followed by a NOP instruction.

RISC 16−Bit CPU

3-39

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 Dint, Disable Interrupt

Models: MSP430x1xx

* DINT

Description

Status Bits

Example

Disable Interrupt

MSP430x1xx specifications