PRODUCT PREVIEW

TMS320DM355

Digital Media System-on-Chip (DMSoC)

www.ti.com

SPRS463A –SEPTEMBER 2007 –REVISED SEPTEMBER 2007

 

Table 3-14. Reset Types

(continued)

Type

Initiator

Effect

Module Reset

ARM software

Resets a specific module. Allows the ARM to

 

 

independently reset any module. Module reset is

 

 

intended as a debug tool not as a tool to use in

 

 

production.

3.11 Default Device Configurations

After POR, warm reset, and max reset, the chip is in its default configuration. This section highlights the default configurations associated with PLLs, clocks, ARM boot mode, and AEMIF.

NOTE

Default configuration is the configuration immediately after POR, warm reset, and max reset and just before the boot process begins. The boot ROM updates the configuration. See Section 3.12 for more information on the boot process.

3.11.1 Device Configuration Pins

The device configuration pins are described in Table 3-15. The device configuration pins are latched at reset and allow you to configure all of the following options at reset:

ARM Boot Mode

Asynchronous EMIF pin configuration

These pins are described further in the following sections.

NOTE

The device configuration pins are multiplexed with AEMIF pins. After the device configuration pins are sampled at reset, they automatically change to function as AEMIF pins. Pin multiplexing is described in Section 3.8.

Table 3-15. Device Configuration

 

 

 

Default Setting (by

 

 

 

 

internal

 

Device

 

Sampled

pull-up/

 

Configuration Input

Function

Pin

pull-down)

Device Configuration Affected

BTSEL[1:0]

Selects ARM boot mode

EM_A[13:12]

00

If any ROM boot mode is selected, GIO61

 

00 = Boot from ROM (NAND)

 

(NAND)

is used to indicated boot status.

 

01 = Boot from AEMIF

 

 

If NAND boot is selected, CE0 is used for

 

10 = Boot from ROM

 

 

NAND. Use AECFG[3:0] to configure

 

(MMC/SD)

 

 

AEMIF pins for NAND.

 

11 = Boot from ROM (UART)

 

 

If AEMIF boot is selected, CE0 is used for

 

 

 

 

AEMIF device (OneNAND, ROM). Use

 

 

 

 

AECFG[3:0] to configure AEMIF pins for

 

 

 

 

NAND.

 

 

 

 

If MMC/SD boot is selected, MMC/SD0 is

 

 

 

 

used.

AECFG[3:0]

Selects AEMIF pin

EM_A[11:8]

1101

Selects the AEMIF pin configuration. Refer

 

configuration

 

(NAND)

to pin-muxing information in Section 3.9.1.

 

 

 

 

Note that AECFG[3:0] affects both AEMIF

 

 

 

 

(BTSEL[1:0]=01) and NAND

 

 

 

 

(BTSEL[1:0]=00) boot modes.

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Detailed Device Description

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Texas Instruments TMS320DM355 warranty Default Device Configurations, Device Configuration Pins, Function Pin

TMS320DM355 specifications

The Texas Instruments TMS320DM355 is a versatile digital signal processor designed to support a wide array of multimedia applications, specifically in the realms of digital video and audio processing. As part of the TMS320 family of digital signal processors, the DM355 brings a blend of computational power, energy efficiency, and integrated features that make it highly effective for tasks such as video encoding, decoding, and general signal processing.

One of the standout features of the DM355 is its advanced DaVinci architecture, which is specifically optimized for multimedia tasks. This architecture integrates both DSP and application processing functionalities. The dual-core architecture includes a high-performance DSP core that specializes in real-time signal processing alongside an ARM926EJ-S RISC microprocessor, facilitating the execution of complex algorithms and control tasks.

The DM355 offers robust multimedia processing capabilities with support for several video formats, including MPEG-2, MPEG-4, H.264, and JPEG. This enables developers to create powerful video applications for a variety of devices, from industrial systems to consumer electronics. Its processing capabilities extend to audio processing, allowing it to efficiently handle audio codecs and enhance audio quality in applications ranging from IP cameras to set-top boxes.

In terms of connectivity, the TMS320DM355 supports various interfaces including USB 2.0, Ethernet, and various serial interfaces like UART, SPI, and I2C. This wide range of connectivity options ensures that the DM355 can easily interface with different peripherals and network components, making it a suitable choice for networked applications.

Energy efficiency is another significant advantage of the DM355. With a focus on low power consumption, the device is designed to operate effectively in battery-powered and heat-sensitive environments. Its low thermal design power allows for extended operational life and reduced thermal management requirements, making it ideal for portable devices.

Furthermore, the DM355 is supported by a comprehensive software development framework, including the TI Code Composer Studio and a range of middleware tools, which streamline application development and speed up time to market. Its rich ecosystem enhances its usability across different applications, ensuring that developers can leverage the full potential of the hardware.

In summary, the Texas Instruments TMS320DM355 stands out as a powerful yet cost-effective DSP solution, combining advanced multimedia processing capabilities, robust connectivity options, and energy efficiency. Its unique architecture and extensive support resources make it a preferred choice for developers seeking to create innovative multimedia solutions.