TMS320DM355

Digital Media System-on-Chip (DMSoC)

www.ti.com

SPRS463A –SEPTEMBER 2007 –REVISED SEPTEMBER 2007

1.2 Description

The DM355 is a highly integrated, programmable platform for digital still camera, digital photo frames, IP security cameras, 4-channel digital video recorders, video door bell application, and other low cost portable digital video applications. Designed to offer portable video designers and manufacturers the ability to produce affordable portable digital video solutions with high picture quality, the DM355 combines high performance, high quality, low power consumption at a very low price point. The DM355 also enables seamless interface to most additional external devices required for a complete digital camera implementation. The interface is flexible enough to support various types of CCD and CMOS sensors, signal conditioning circuits, power management, DDR/mDDR memory, SRAM, NAND, shutter, Iris and auto-focus motor controls, etc.

The processor core is an ARM926EJ-S RISC processor. The ARM926EJ-S is a 32-bit processor core that performs 32-bit and 16-bit instructions and processes 32-bit, 16-bit, and 8-bit data. The core uses pipelining so that all parts of the processor and memory system can operate continuously. The ARM core incorporates:

∙A coprocessor 15 (CP15) and protection module

∙Data and program Memory Management Units (MMUs) with table look-aside buffers.

∙Separate 16K-byte instruction and 8K-byte data caches. Both are four-way associative with virtual index virtual tag (VIVT).

DM355 performance is enhanced by its MPEG/JPEG co-processor. The MPEG/JPEG co-processor performs the computational operations required for image processing; JPEG compression and MPEG1,2,4 video and imaging standards.

The device has a Video Processing Subsystem (VPSS) with two configurable video/imaging peripherals:

∙A Video Processing Front-End (VPFE)

∙A Video Processing Back-End (VPBE)

The VPFE port provides an interface for CCD/CMOS imager modules and video decoders. The VPBE provides hardware On Screen Display (OSD) support and composite NTSC/PAL and digital LCD output.

The DM355 peripheral set includes:

∙An inter-integrated circuit (I2C) Bus interface

∙Two audio serial ports (ASP)

∙Three 64-bit general-purpose timers each configurable as two independent 32-bit timers

∙A 64-bit watchdog timer

∙Up to 104-pins of general-purpose input/output (GPIO) with programmable interrupt/event generation modes, multiplexed with other peripherals

∙Three UARTs with hardware handshaking support on one UART

∙Three serial port Interfaces (SPI)

∙Four pulse width modulator (PWM) peripherals

∙Four real time out (RTO) outputs

∙Two Multi-Media Card / Secure Digital (MMC/SD) interfaces

∙A USB 2.0 full and high-speed device and host interface

∙Two external memory interfaces:

–An asynchronous external memory interface (AEMIF) for slower memories/peripherals such as NAND and OneNAND,

–A high speed synchronous memory interface for DDR2/mDDR.

For software development support the has a complete set of ARM development tools which include: C compilers, assembly optimizers to simplify programming and scheduling, and a Windows™ debugger interface for visibility into source code execution.

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TMS320DM355 Digital Media System-on-Chip (DMSoC)

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Texas Instruments TMS320DM355 warranty Description
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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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