SM320F2812-HT

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SGUS062A –JUNE 2009 –REVISED APRIL 2010

4.8GPIO MUX

The GPIO Mux registers are used to select the operation of shared pins on the F2812 device. The pins can be individually selected to operate as Digital I/O or connected to Peripheral I/O signals (via the GPxMUX registers). If selected for Digital I/O mode, registers are provided to configure the pin direction (via the GPxDIR registers) and to qualify the input signal to remove unwanted noise (via the GPxQUAL) registers). Table 4-11lists the GPIO Mux Registers.

Table 4-11. GPIO Mux Registers(1) (2) (3)

NAME

ADDRESS

SIZE (× 16)

REGISTER DESCRIPTION

 

 

 

 

GPAMUX

0x00 70C0

1

GPIO A Mux Control Register

 

 

 

 

GPADIR

0x00 70C1

1

GPIO A Direction Control Register

 

 

 

 

GPAQUAL

0x00 70C2

1

GPIO A Input Qualification Control Register

 

 

 

 

reserved

0x00 70C3

1

 

GPBMUX

0x00 70C4

1

GPIO B Mux Control Register

 

 

 

 

GPBDIR

0x00 70C5

1

GPIO B Direction Control Register

 

 

 

 

GPBQUAL

0x00 70C6

1

GPIO B Input Qualification Control Register

 

 

 

 

reserved

0x00 70C7

1

 

reserved

0x00 70C8

1

 

reserved

0x00 70C9

1

 

reserved

0x00 70CA

1

 

reserved

0x00 70CB

1

 

GPDMUX

0x00 70CC

1

GPIO D Mux Control Register

 

 

 

 

GPDDIR

0x00 70CD

1

GPIO D Direction Control Register

 

 

 

 

GPDQUAL

0x00 70CE

1

GPIO D Input Qualification Control Register

 

 

 

 

reserved

0x00 70CF

1

 

GPEMUX

0x00 70D0

1

GPIO E Mux Control Register

 

 

 

 

GPEDIR

0x00 70D1

1

GPIO E Direction Control Register

 

 

 

 

GPEQUAL

0x00 70D2

1

GPIO E Input Qualification Control Register

 

 

 

 

reserved

0x00 70D3

1

 

GPFMUX

0x00 70D4

1

GPIO F Mux Control Register

 

 

 

 

GPFDIR

0x00 70D5

1

GPIO F Direction Control Register

 

 

 

 

reserved

0x00 70D6

1

 

reserved

0x00 70D7

1

 

GPGMUX

0x00 70D8

1

GPIO G Mux Control Register

 

 

 

 

GPGDIR

0x00 70D9

1

GPIO G Direction Control Register

 

 

 

 

reserved

0x00 70DA

1

 

reserved

0x00 70DB

1

 

reserved

0x00 70DC

4

 

0x00 70DF

 

 

 

 

(1)Reserved locations returns undefined values and writes is ignored.

(2)Not all inputs support input signal qualification.

(3)These registers are EALLOW protected. This prevents spurious writes from overwriting the contents and corrupting the system.

If configured for Digital I/O mode, additional registers are provided for setting individual I/O signals (via the GPxSET registers), for clearing individual I/O signals (via the GPxCLEAR registers), for toggling individual I/O signals (via the GPxTOGGLE registers), or for reading/writing to the individual I/O signals (via the GPxDAT registers). Table 4-12lists the GPIO Data Registers. For more information, see the TMS320x281x System Control and Interrupts Reference Guide (literature number SPRU078).

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Texas Instruments SM320F2812-HT specifications Gpio Mux Registers1 2, Register Description
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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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