SM320F2812-HT

www.ti.com

 

 

 

 

 

 

 

SGUS062A –JUNE 2009 –REVISED APRIL 2010

 

 

 

 

 

Table 2-3. Signal Descriptions (1)

(continued)

 

 

 

PIN NO.

DIE PAD

 

DIE PAD

DIE PAD

I/O/Z (2)

PU/PD (3)

 

 

 

 

 

 

NAME

172-PIN

 

X-CENTER

Y-CENTER

 

DESCRIPTION

 

 

 

HFG

NO.

 

(μm)

(μm)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

JTAG AND MISCELLANEOUS SIGNALS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Oscillator Input – input to the internal

 

 

 

 

 

 

 

 

 

 

oscillator. This pin is also used to feed an

 

 

 

 

 

 

 

 

 

 

external clock. The 28× can be operated

 

 

 

 

 

 

 

 

 

 

with an external clock source, provided that

 

 

 

 

 

 

 

 

 

 

the proper voltage levels be driven on the

 

 

 

 

 

 

 

 

 

 

X1/XCLKIN pin. It should be noted that the

 

X1/XCLKIN

75

88

 

5361.5

3668.7

I

 

X1/XCLKIN pin is referenced to the 1.8-V

 

 

 

(or 1.9-V) core digital power supply (VDD),

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

rather than the 3.3-V I/O supply (VDDIO). A

 

 

 

 

 

 

 

 

 

 

clamping diode may be used to clamp a

 

 

 

 

 

 

 

 

 

 

buffered clock signal to ensure that the

 

 

 

 

 

 

 

 

 

 

logic-high level does not exceed VDD

 

 

 

 

 

 

 

 

 

 

(1.8 V or 1.9 V) or a 1.8-V oscillator may be

 

 

 

 

 

 

 

 

 

 

used.

 

 

 

 

 

 

 

 

 

 

 

X2

74

87

 

5361.5

3582.6

O

 

Oscillator Output

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Output clock derived from SYSCLKOUT to

 

 

 

 

 

 

 

 

 

 

be used for external wait-state generation

 

 

 

 

 

 

 

 

 

 

and as a general-purpose clock source.

 

 

 

 

 

 

 

 

 

 

XCLKOUT is either the same frequency,

 

XCLKOUT

117

132

 

1701.2

5057.5

O

–

1/2 the frequency, or 1/4 the frequency of

 

 

 

 

 

 

 

 

 

 

SYSCLKOUT. At reset, XCLKOUT =

 

 

 

 

 

 

 

 

 

 

SYSCLKOUT/4. The XCLKOUT signal can

 

 

 

 

 

 

 

 

 

 

be turned off by setting bit 3 (CLKOFF) of

 

 

 

 

 

 

 

 

 

 

the XINTCNF2 register to 1.

 

TESTSEL

131

147

 

42.6

4764.6

I

PD

Test Pin. Reserved for TI. Must be

 

 

connected to ground.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Device Reset (in) and Watchdog Reset

 

 

 

 

 

 

 

 

 

 

(out).

 

 

 

 

 

 

 

 

 

 

Device reset.

 

causes the device to

 

 

 

 

 

 

 

 

 

 

XRS

 

 

 

 

 

 

 

 

 

 

terminate execution. The PC points to the

 

 

 

 

 

 

 

 

 

 

address contained at the location

 

 

 

 

 

 

 

 

 

 

0x3FFFC0. When

XRS

is brought to a high

 

 

 

 

 

 

 

 

 

 

level, execution begins at the location

 

 

 

 

 

 

 

 

 

 

pointed to by the PC. This pin is driven low

 

XRS

156

175

 

42.6

2077.8

I/O

PU

 

 

by the DSP when a watchdog reset occurs.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

During watchdog reset, the XRS pin is

 

 

 

 

 

 

 

 

 

 

driven low for the watchdog reset duration

 

 

 

 

 

 

 

 

 

 

of 512 XCLKIN cycles.

 

 

 

 

 

 

 

 

 

 

The output buffer of this pin is an

 

 

 

 

 

 

 

 

 

 

open-drain with an internal pullup (100 μA,

 

 

 

 

 

 

 

 

 

 

typical). It is recommended that this pin be

 

 

 

 

 

 

 

 

 

 

driven by an open-drain device.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TEST1

66

76

 

5361.5

2522.3

I/O

–

Test Pin. Reserved for TI. On F281x

 

 

devices, TEST1 must be left unconnected.

 

 

 

 

 

 

 

 

 

 

 

TEST2

65

75

 

5361.5

2436.1

I/O

–

Test Pin. Reserved for TI. On F281x

 

 

devices, TEST2 must be left unconnected.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Copyright © 2009–2010, Texas Instruments Incorporated

Introduction

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Texas Instruments SM320F2812-HT specifications Center Description HFG Jtag and Miscellaneous Signals
Page 18 Page 20

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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