TMS320DM355

Digital Media System-on-Chip (DMSoC)

www.ti.com

SPRS463A –SEPTEMBER 2007 –REVISED SEPTEMBER 2007

–Image Pipe (IPIPE)

–H3A Engine (Hardware engine for computing Auto-focus, Auto white balance, and Auto exposure)

∙Video Processing Back End (VPBE)

–On Screen Display (OSD)

–Video Encoder Engine (VENC)

Figure 3-1shows the functional block diagram of the DM355 ARM Subsystem.

PRODUCT PREVIEW

Master

IF

DMAbus￿

 

 

 

Master￿IF

 

Arbiter

Arbiter

 

 

 

 

 

I-AHB

 

 

 

 

 

D-AHB

 

 

 

 

 

I-TCM

 

 

 

 

 

D-TCM

 

 

 

Slave

ARM926EJ-S

 

Arbiter

 

 

 

 

 

IF

 

 

 

 

 

16K￿I$

CP15

8K

16K

16K

CFGbus￿

8K￿D$

MMU

ROM

RAM1

RAM0

 

ARM

interrupt controller (AINTC)

System control

PLLC2

PLLC1

Power

sleep

controller

(PSC)

Peripherals

...

Figure 3-1. DM355 ARM Subsystem Block Diagram

3.2 ARM926EJ-S RISC CPU

The ARM Subsystem integrates the ARM926EJ-S processor. The ARM926EJ-S processor is a member of ARM9 family of general-purpose microprocessors. This processor is targeted at multi-tasking applications where full memory management, high performance, low die size, and low power are all important. The ARM926EJ-S processor supports the 32-bit ARM and 16 bit THUMB instruction sets, enabling the user to trade off between high performance and high code density. Specifically, the ARM926EJ-S processor supports the ARMv5TEJ instruction set, which includes features for efficient execution of Java byte codes, providing Java performance similar to Just in Time (JIT) Java interpreter, but without associated code overhead.

The ARM926EJ-S processor supports the ARM debug architecture and includes logic to assist in both hardware and software debug. The ARM926EJ-S processor has a Harvard architecture and provides a complete high performance subsystem, including:

∙ARM926EJ -S integer core

∙CP15 system control coprocessor

∙Memory Management Unit (MMU)

∙Separate instruction and data Caches

∙Write buffer

∙Separate instruction and data Tightly-Coupled Memories (TCMs) [internal RAM] interfaces

∙Separate instruction and data AHB bus interfaces

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Detailed Device Description

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Texas Instruments TMS320DM355 warranty ARM926EJ-S Risc CPU
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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.
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