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TMS320DM355 Datasheet(PDF) 3 Page - Texas Instruments |
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TMS320DM355 Datasheet(HTML) 3 Page - Texas Instruments |
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3 / 153 page  www.ti.com 1.2 Description TMS320DM355 Digital Media System-on-Chip (DMSoC) SPRS463 – SEPTEMBER 2007 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. Submit Documentation Feedback TMS320DM355 Digital Media System-on-Chip (DMSoC) 3 |
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