NOTES:
(3.3 V) (See Note B)
VDD, VDD1
(1.8 V (or 1.9 V))
XCLKIN
X1
XCLKOUT
XRS
Address/Data/ Control
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VDDIO, VDD3VFL
VDDAn, VDDAIO

SM320F2812-HT

SGUS062A –JUNE 2009 –REVISED APRIL 2010

2.5 V

0.3 V

tOSCST

XCLKIN/8 (See Note C)

User-Code Dependent

tw(RSL1)

Address/Data Valid. Internal Boot-ROM Code Execution Phase

td(EX)

tsu(XPLLDIS)

XPLLDIS Sampling

User-Code Execution Phase User-Code Dependent

th(XPLLDIS)

XF/XPLLDIS

(Don't Care)

GPIOF14

XMP/MC

th(XMP/MC)

(Don't Care)

 

 

th(boot-mode)

 

 

(See Note D)

User-Code Dependent

 

 

Boot-Mode Pins

GPIO Pins as Input

 

See Note A

Boot-ROM Execution Starts

Peripheral/GPIO Function

Based on Boot Code

 

 

I/O Pins

GPIO Pins as Input (State Depends on Internal PU/PD)

 

 

User-Code Dependent

A. The state of the GPIO pins is undefined (i.e., they could be input or output) until the 1.8-V (or 1.9-V) supply reaches at least 1 V and 3.3-V supply reaches 2.5 V.

B.VDDAn − V DDA1/VDDA2 and AVDDREFBG

C.Upon power up, SYSCLKOUT is XCLKIN/2 if the PLL is enabled. Since both the XTIMCLK and CLKMODE bits in the XINTCNF2

register come up with a reset state of 1, SYSCLKOUT is further divided by 4 before it appears at XCLKOUT. This explains why XCLKOUT = XCLKIN/8 during this phase.

D.After reset, the Boot ROM code executes instructions for 1260 SYSCLKOUT cycles (SYSCLKOUT = XCLKIN/2) and then samples BOOT Mode pins. Based on the status of the Boot Mode pin, the boot code branches to destination memory or boot code function in ROM. The BOOT Mode pins should be held high/low for at least 2520 XCLKIN cycles from boot ROM execution time for proper selection of Boot modes.

If Boot ROM code executes after power-on conditions (in debugger environment), the Boot code execution time is based on the current SYSCLKOUT speed. The SYSCLKOUT is based on user environment and could be with or without PLL enabled.

Figure 6-9. Power-on Reset in Microcomputer Mode (XMP/MC = 0) (See Note A)

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Electrical Specifications

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Texas Instruments SM320F2812-HT specifications Xf/Xplldis, GPIOF14
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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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