System Registers

 

Table 4±1. Status Register (STAT)

 

 

 

 

 

Bit

Name

Function

 

 

 

 

 

0

XM

Sign extended mode bit. This bit is one, if sign extension mode is enabled. See

 

 

 

MSP50P614/MSP50C614 Computational Modes, Section 4.6.

 

 

 

 

 

1

UM

Unsigned multiplier mode. This bit is one if unsigned multiplier mode is enabled. See

 

 

 

MSP50P614/MSP50C614 Computational Modes, Section 4.6.

 

 

 

 

 

2

OM

Overflow mode. This bit is one if overflow (saturation) mode is enabled. See

 

 

 

MSP50P614/MSP50C614 Computational Modes, Section 4.6.

 

 

 

 

 

3

FM

Fractional multiplication shift mode. This bit is set if fractional mode is enabled. See

 

 

 

MSP50P614/MSP50C614 Computational Modes, Section 4.6.

 

 

 

 

 

4

IM

Maskable interrupt enable mode. If this bit is zero, all maskable interrupts are disabled.

 

 

 

 

 

5

Reserved

Reserved for future use.

 

 

 

 

 

6

XZF

Transfer(x) equal to zero status (flag) bit. In transfer instructions, this bit is set if the operation

 

 

 

cause the destination result to become zero (excluding accumulator and Rx registers).

 

 

 

 

 

7

XSF

Transfer(x) sign status (flag) bit. In transfer instructions, the sign bit of the value is copied to

 

 

 

this bit if the destination is not accumulator or Rx registers.

 

 

 

 

 

8

RCF

Indirect register carry out status (flag) bit. This bit is set if an addition to the value of Rx register

 

 

 

caused a carry.

 

 

 

 

 

9

RZF

Indirect register equal to zero status (flag) bit. This bit is set if the Rx register content used by

 

 

 

the instruction is zero.

 

 

 

 

 

10

OF

Accumulator overflow status (flag) bit. This bit is set if an overflow occurs during computation

 

 

 

in ALU.

 

 

 

 

 

11

SF

Accumulator sign status (flag) bit (extended 17th bit). This bit is set if the 16th bit (the sign bit)

 

 

 

of the destination accumulator is 1.

 

 

 

 

 

12

ZF

Accumulator equal to zero status (flag) bit (16 bits). This bit is set to 1 if the result of previous

 

 

 

instruction cause the destination accumulator to become zero.

 

 

 

 

 

13

CF

Accumulator carry out status (flag) bit ( 16th ALU bit).

 

14

TF1

Test Flag 1. Test flags are related with Class 8 instructions discussed later.

 

 

 

 

 

15

TF2

Test Flag 2. Test flags are related with Class 8 instructions discussed later.

 

 

 

 

 

16

TAG

Memory tag. Holds the 17th bit whenever a memory value is read.

 

Assembly Language Instructions

4-7

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Texas Instruments MSP50C614 manual ±1. Status Register Stat, Function
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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.
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