Architecture

A.3.1 RAM

The MSP50C605 (like MSP50C614) has 640 17-bit words of internal data memory (static RAM). This RAM occupies a space extending from 0 to 0x27F in the address space.

A.3.2 ROM

The MSP50C605 contains 32K by 17-bit words of internal program ROM and 229,376 bytes by 8 bits (i.e., 1,835,008 bits) of slow data ROM. The program ROM space is divided into three areas:

1)The initial 2K words of ROM (0x0000 ± 0x07FF) is reserved for built in self- test (BIST) that is provided by Texas Instruments during mass production.

2)Customer can use the program ROM from address extending from 0x0800 to 0x7FFF. Restrictions on using certain program ROM location is shown in Figure A±2.

The Data ROM is a slower ROM dedicated only to hold data. Data ROM cannot execute program instructions. The Data ROM locations start from 0x00000 and ends at 0x37FFF. The lower 16 bits of the address to be read is provided into IO port DRA register (0x2C), the upper 2 bits goes into IO port DRP regis- ter (0x08). After 1.5 instruction cycle delay, the 8 bit data appears at IO port DRD (0x00). Discharging time is always 3 processor cycle and data is latched to port DRD during this time. There is 3.5 page in MSP50C605; pages 0, 1, and 2 are full; page 3 is half. Using 1Kbps MELP algorithm, this ROM can provide over 30 minutes of uninterrupted speech.

Port

Description

IO

Function

Name

Address

DRA

Data ROM Address

0x2C

write into this port to access 16 bit of

 

 

 

the data ROM address.

DRP

Data ROM Page

0x08

write into this port to select ROM page

DRD

Data ROM Data

0x00

read this port to get data at specified

 

 

 

ROM page and address

 

 

 

 

A.3.3 I/O Pins

The MSP50C605 has 32 input/output pins. 24 of the pins are software confi- gurable as either input or output (port C, D, and E). Eight of the pins are dedi- cated as input pins with programmable pullout resistors (port F). These ports are identical to the similar ports in MSP50C614, see Chapter 2 and Chapter 3 for details.

MSP50C605 Preliminary Data

A-3

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Texas Instruments MSP50C614 manual 1 RAM, 2 ROM, 3 I/O Pins, Port Description Function Name Address
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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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