Texas Instruments manual MSC1211 Description, EVM System Overview

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MSC1211 Description

1.1 MSC1211 Description

The MSC1211 is a precision 24-bit delta-sigma analog-to-digital converter (ADC) with an 8051 microcontroller, and up to 32K of flash memory. It has eight differential/single-ended analog inputs. The delta-sigma architecture employed in the MSC1211 enables the device to achieve 22 bits of effective resolution (0.45 ppm RMS noise) at a data rate of 10Hz. It can be programmed for other data rates up to 1kHz that have lower effective resolution. In addition to the standard 8051 peripherals and functions, the MSC1211 includes four 16-bit digital-to-analog converters (DACs), a 32-bit accumulator, a high-speed SPI or I2C interface, a 16-bit PWM output, data flash memory, 1,280 bytes of data RAM, dual UARTS, and dual DPTR registers.

The MSC1211 has an enhanced 8051 core that only requires 4 clock cycles per machine cycle. It has extra timers, watchdog, brownout and low-voltage detect circuits, power management control and hardware breakpoint registers.

1.2 EVM System Overview

A block diagram of the MSC1211EVM is shown in Figure 1–1.

During normal operation, programs are developed on the PC and then down- loaded into the MSC1211 for execution. The primary development environ- ment is Raisonance for assembly and C language programming. There is also a BASIC–52 and a Basic interpreter available from MDL–Labs.

Figure 1–1. MSC1211EVM Block Diagram

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Contents User’s Guide Important Notice EVM Important Notice EVM Warnings and Restrictions Read This First About This ManualTrademarks Contents Figures TablesIntroduction TopicMSC1211 Description EVM System OverviewPrototyping Area Power RequirementsAnalog Inputs Host Computer RequirementsUnpacking the MSC1211EVM Default Configration Quick Start Getting StartedJumper identifier Description Default Setting Default ConfigurationFactory Jumper Settings Unpacking the MSC1211EVMCD-Rom Contents Quick StartRide Raisonance Integrated Development Environment Downloader Operand Definitions Operand DefinitionJumpers Switches Connectors and Signals Circuit Descriptions OperationJumpers Jumper/Function Reference5 JMP5 Avdd Power Source Select 3 JMP3 I2C Data SDA Enable4 JMP3 I2C Data SCL Enable 6 JMP6 Dvdd Power Source SelectINT Switch SwitchesReset Switch 3 SW3 Configuration Switch5 SW5 Emulation and Control Switch SW5 Configuration Control SwitchPin Signal RS-232 Direction Number Name At board Function I/O Connectors and Signals1 J8 Serial0 RS-232 Connector J8 RS-232 Port Pinout2 J9 Serial1 RS-232 Connector B1 9V Battery Connector 3 J6, JMP5, JMP6, B1 Power ConnectorsUnregulated Power Input Connector Positive power supply input5 J7 External Reference Input 4 J4 Analog InputsJ4 Analog Inputs J7 External Reference Input6 TP1-6 Test Points 10.TP1-6 Test Points1 MSC1211 Power SupplyCircuit Descriptions Programming and Host CommunicationPhysical Description Schematics Processor SchematicPower and Analog Inputs Schematic Component Locations Printed Circuit Board LayoutPower-Supply CE Certification Bill of Materials Bill of MaterialsPhysical Description JMP1-JMP4

MSC1211 specifications

Texas Instruments MSC1211 is a highly integrated, low-power microcontroller designed specifically for applications requiring high accuracy and precision in signal processing. As a member of the Texas Instruments Microcontroller family, the MSC1211 targets industrial automation, medical instrumentation, and portable measurement devices, making it a versatile choice for designers across various industries.

One of the standout features of the MSC1211 is its 16-bit ADC (Analog-to-Digital Converter) that boasts a resolution of 16 bits, which enables the microcontroller to accurately convert analog signals into digital data. This high resolution makes it suitable for applications where precision is paramount, such as in medical devices that require accurate readings from sensors. The device can achieve sampling rates up to 1 kSPS (kilo Samples Per Second), making it efficient for real-time signal processing.

Another key characteristic of the MSC1211 is its low power consumption. The microcontroller employs advanced power management features, allowing it to operate in various power modes, making it ideal for battery-operated devices. The sleep mode dramatically reduces power consumption, extending the operational life of portable equipment significantly.

The MSC1211 features a built-in digital signal processor (DSP) that facilitates efficient data processing and filtering, enabling complex algorithms to be executed on the captured signals in real-time. This capability simplifies design considerations for developers, reducing the need for external DSP chips and enhancing system integration.

Connectivity is another significant aspect of the MSC1211. It supports standard communication protocols such as SPI (Serial Peripheral Interface) and I2C (Inter-Integrated Circuit), making it easy to interface with a variety of sensors and peripherals. This flexibility is crucial in today's interconnected world, allowing developers to design scalable systems that can accommodate future upgrades and enhancements.

Moreover, the microcontroller incorporates onboard memory, including RAM and Flash memory, ensuring ample storage for application codes and operational data. The flexibility in memory allocation allows developers to optimize their applications, balancing memory usage with processing speed.

In summary, the Texas Instruments MSC1211 microcontroller stands out for its high-resolution ADC, low power consumption, integrated DSP capabilities, and flexible communication options. These features make it an exceptional choice for applications in diverse fields such as medical devices, industrial automation, and portable measurement systems, ensuring precision and efficiency in performance.
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