Manuals / Texas Instruments / Computer Equipment / Computer Hardware

Texas Instruments MSP430x1xx I2CSCLH, I2C Shift Clock High Register, I2CSCLHx Bits, I2CSCLLx Bits

Models: MSP430x1xx

1 432
Download 432 pages 41.81 Kb
Page 340
Image 340

I2C Module Registers

I2CSCLH, I2C Shift Clock High Register

7

6

5

4

3

2

1

0

I2CSCLHx

rw−0

rw−0

rw−0

rw−0

rw−0

rw−0

rw−0

rw−0

Modifiable only when I2CEN = 0

I2CSCLHx Bits

I2C shift clock high. These bits define the high period of SCL when the I2C

7−0

controller is in master mode. The SCL high period is (I2CSCLH+2) x (I2CPSC

 

+ 1).

 

 

000h

SCL high period = 5 x (I2CPSC + 1)

 

001h

SCL high period = 5 x (I2CPSC + 1)

 

002h

SCL high period = 5 x (I2CPSC + 1)

 

003h

SCL high period = 5 x (I2CPSC + 1)

 

004h

SCL high period = 6 x (I2CPSC + 1)

 

:

 

0FFh SCL high period = 257 x (I2CPSC + 1)

I2CSCLL, I2C Shift Clock Low Register

7

6

5

4

3

2

1

0

I2CSCLLx

rw−0

rw−0

rw−0

rw−0

rw−0

rw−0

rw−0

rw−0

Modifiable only when I2CEN = 0

I2CSCLLx Bits

I2C shift clock low. These bits define the low period of SCL when the I2C

7−0

controller is in master mode. The SCL low period is (I2CSCLL+2) x (I2CPSC

 

+ 1).

 

 

000h

SCL low period = 5 x (I2CPSC + 1)

 

001h

SCL low period = 5 x (I2CPSC + 1)

 

002h

SCL low period = 5 x (I2CPSC + 1)

 

003h

SCL low period = 5 x (I2CPSC + 1)

 

004h

SCL low period = 6 x (I2CPSC + 1)

 

:

 

0FFh SCL low period = 257 x (I2CPSC + 1)

15-26USART Peripheral Interface, I2C Mode

Page 339 Page 341
Page 340
Image 340
Texas Instruments MSP430x1xx I2CSCLH, I2C Shift Clock High Register, I2CSCLL, I2C Shift Clock Low Register, I2CSCLHx Bits
Page 339 Page 341

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.