ADC12 Registers

ADC12CTL1, ADC12 Control Register 1

15

14

13

12

11

10

9

8

CSTARTADDx

SHSx

SHP

ISSH

rw−(0)

rw−(0)

rw−(0)

rw−(0)

7

6

5

4

rw−(0)

rw−(0)

rw−(0)

rw−(0)

3

2

1

0

ADC12DIVx

ADC12SSELx

CONSEQx

ADC12

BUSY

rw−(0)

rw−(0)

rw−(0)

rw−(0)

rw−(0)

rw−(0)

rw−(0)

r−(0)

Modifiable only when ENC = 0

CSTART

Bits

Conversion start address.

These bits

select

which

ADC12

ADDx

15-12

conversion-memory register is used for a single conversion or for the first

 

 

conversion in a sequence. The value of CSTARTADDx is 0 to 0Fh,

 

 

corresponding to ADC12MEM0 to ADC12MEM15.

 

 

SHSx

Bits

Sample-and-hold source select

 

 

 

 

 

11-10

00

ADC12SC bit

 

 

 

 

 

 

01

Timer_A.OUT1

 

 

 

 

 

 

10

Timer_B.OUT0

 

 

 

 

 

 

11

Timer_B.OUT1

 

 

 

 

SHP

Bit 9

Sample-and-hold pulse-mode

select. This bit

selects

the source

of the

 

 

sampling signal (SAMPCON) to be either the output of the sampling timer or

 

 

the sample-input signal directly.

 

 

 

 

 

 

0

SAMPCON signal is sourced from the sample-input signal.

 

 

 

1

SAMPCON signal is sourced from the sampling timer.

 

ISSH

Bit 8

Invert signal sample-and-hold

 

 

 

 

 

 

0

The sample-input signal is not inverted.

 

 

 

 

 

1

The sample-input signal is inverted.

 

 

 

ADC12DIVx

Bits

ADC12 clock divider

 

 

 

 

 

7-5

000

/1

 

 

 

 

 

 

001

/2

 

 

 

 

 

 

010

/3

 

 

 

 

 

 

011

/4

 

 

 

 

 

 

100

/5

 

 

 

 

 

 

101

/6

 

 

 

 

 

 

110

/7

 

 

 

 

 

 

111

/8

 

 

 

 

ADC12 17-23

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Image 381
Texas Instruments MSP430x1xx manual ADC12CTL1, ADC12 Control Register, ADDx, SHSx, ADC12DIVx

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.