SM320F2812-HT

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SGUS062A –JUNE 2009 –REVISED APRIL 2010

4.6Serial Communications Interface (SCI) Module

The F2812 device include two serial communications interface (SCI) modules. The SCI modules support digital communications between the CPU and other asynchronous peripherals that use the standard non-return-to-zero (NRZ) format. The SCI receiver and transmitter are double-buffered, and each has its own separate enable and interrupt bits. Both can be operated independently or simultaneously in the full-duplex mode. To ensure data integrity, the SCI checks received data for break detection, parity, overrun, and framing errors. The bit rate is programmable to over 65 000 different speeds through a 16-bit baud-select register.

Features of each SCI module include:

•Two external pins:

–SCITXD: SCI transmit-output pin

–SCIRXD: SCI receive-input pin

NOTE

Both pins can be used as GPIO if not used for SCI.

•Baud rate programmable to 64K different rates

–Baud rate

=

LSPCLK

,

(BRR + 1) • 8

when BRR ≠ 0

= LSPCLK , 16

•Data-word format

– One start bit

when BRR = 0

–Data-word length programmable from one to eight bits

–Optional even/odd/no parity bit

–One or two stop bits

•Four error-detection flags: parity, overrun, framing, and break detection

•Two wake-up multiprocessor modes: idle-line and address bit

•Half- or full-duplex operation

•Double-buffered receive and transmit functions

•Transmitter and receiver operations can be accomplished through interrupt-driven or polled algorithms with status flags.

–Transmitter: TXRDY flag (transmitter-buffer register is ready to receive another character) andTX EMPTY flag (transmitter-shift register is empty)

–Receiver: RXRDY flag (receiver-buffer register is ready to receive another character), BRKDT flag (break condition occurred), and RX ERROR flag (monitoring four interrupt conditions)

•Separate enable bits for transmitter and receiver interrupts (except BRKDT)

 

150 MHZ

MAX BIT RATE =

 

= 9.375 ⋅ 106 B / S

 

•

2 ⋅ 8

 

 

•NRZ (non-return-to-zero) format

•Ten SCI module control registers located in the control register frame beginning at address 7050h

Copyright © 2009–2010, Texas Instruments Incorporated

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Texas Instruments SM320F2812-HT specifications Serial Communications Interface SCI Module
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SM320F2812-HT specifications

The Texas Instruments SM320F2812-HT is a highly capable digital signal processor (DSP) specifically designed for high-performance and real-time applications in harsh environments. This part of the C2000 family of microcontrollers caters to applications in areas such as industrial automation, motor control, and power conversion, where reliability and durability under extreme temperature conditions are paramount.

One of the standout features of the SM320F2812-HT is its robust architecture based on a 32-bit fixed-point core. This allows for efficient execution of complex algorithms while maintaining a high processing speed. The processor operates at clock speeds of up to 150 MHz, enabling it to handle multiple tasks simultaneously with minimal latency.

The SM320F2812-HT boasts an impressive memory configuration that includes up to 128 KB of flash memory and 4 KB of RAM. The integrated memory supports efficient data handling and storage, making it ideal for demanding applications that require quick access to critical information. The device also features various peripherals, including analog-to-digital converters (ADCs), pulse width modulation (PWM) modules, and serial communication interfaces, which enhance its functionality in real-time processing and control tasks.

Furthermore, this DSP employs advanced control algorithms and supports various communication protocols, allowing it to interoperate seamlessly with other devices within a system. Its capabilities are further enhanced by Texas Instruments’ extensive development tools and software libraries, which enable developers to accelerate design cycles and improve overall efficiency.

With its high temperature rating, the SM320F2812-HT is designed to operate within a temperature range from -40°C to 125°C, making it particularly well-suited for use in automotive, aerospace, and other rugged environments where traditional components might fail. The high reliability and endurance of this microcontroller make it a preferred choice among engineers looking for durable solutions without compromising performance.

In summary, the Texas Instruments SM320F2812-HT represents a powerful blend of processing capabilities, memory architecture, and environmental resilience. Its features make it a go-to option for developers in search of a robust DSP for real-time applications, ensuring that it meets the rigorous demands of various industrial sectors while delivering consistent performance.
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