TMS320DM355中文资料数字媒体片上系统 (DMSoC)数据手册TI规格书

描述 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 MPEG4 HD (720p) codecs and JPEG codecs up to 50M pixels per second, high quality, and 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 DM355 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 MPEG4/JPEG coprocessor. The MPEG4/JPEG coprocessor performs the computational operations required for image processing; JPEG compression and MPEG4 video and imaging standard. The MPEG4/JPEG coprocessor supports MPEG4 SP at HD (720p), D1, VGA, SIF encode/decode resolutions and JPEG encode/decode up to 50M pixels per second.
The DM355 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/SDIO) interfaces Wireless interfaces (Bluetooth, WLAN, WUSB) through SDIO 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 DM355 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.

特性 Features

• Get started today with production-ready, easy-to-use audio and video codecs for digital media processors based on DaVinci™ technology. Also available are various O/S Board Support Packages and software updates. All codecs are available for FREE evaluation. REQUEST FREE SOFTWARE!
• Up to 270-MHz ARM926EJ-S™ Clock Rate
• Up to 720p MPEG4 SP
• Video Processing Subsystem
• Up to 14-bit CCD/CMOS Digital Interface
• Resize Image 1/16x to 8x
• Supports digital HDTV (720p/1080i) output for connection to external encoder
• Peripherals include DDR and mDDR SDRAM, 2 MMC/SD/SDIO and SmartMedia Flash Card Interfaces, USB 2.0, 3 UARTs and 3 SPIs
• On-Chip ARM ROM Bootloader (RBL) to Boot From NAND Flash, MMC/SD, or UART
• 3.3-V and 1.8-V I/O, 1.3-V Core
• 337-Pin Ball Grid Array at 65 nm Process Technology
• 135-, 216-, and 270-MHz ARM926EJ-S Clock Rate
• Extended Temperature support for 135- and 216-Mhz Devices are Available
• ARM926EJ-S Core
• Support for 32-Bit and 16-Bit (Thumb Mode) Instruction Sets
• ARM® Jazelle® Technology
• ARM9 Memory Architecture
• 16K-Byte Instruction Cache
• 32K-Byte RAM
• Little Endian
• Fixed Function Coprocessor Supports:
• MPEG4 SP Codec at HD (720p), D1, VGA, SIF
• Video Processing Subsystem
• Front End Provides:
• Hardware IPIPE for Real-Time Processing
• 16-/8-bit Generic YcBcR-4:2 Interface (BT.601)
• Up to 75-MHz Pixel Clock
• Resize Engine
• Resize Images From 1/16x to 8x
• Two Simultaneous Output Paths
• Hardware On-Screen Display (OSD)
• 8-/16-bit YCC and Up to 18-Bit RGB666 Digital Output
• Supports digital HDTV (720p/1080i) output for connection to external encoder
• DDR2 and mDDR SDRAM 16-bit wide EMIF With 256 MByte Address Space (1.8-V I/O)
• Flash Memory Interfaces
• NAND (8-/16-bit Wide Data)
• Flash Card Interfaces
• Two Multimedia Card (MMC) / Secure Digital (SD/SDIO)
• Enhanced Direct-Memory-Access (EDMA) Controller (64 Independent Channels)
• USB 2.0 Full and High-Speed Device
• Three 64-Bit General-Purpose Timers (each configurable as two 32-bit timers)
• Three UARTs (One fast UART with RTS and CTS Flow Control)
• One Master/Slave Inter-Integrated Circuit (I2C) Bus®
• I2S and TDM I2S
• S/PDIF via Software
• SPI Protocol (Master Mode Only)
• Four RTO (Real Time Out) Outputs
• On-Chip ARM ROM Bootloader (RBL) to Boot From NAND Flash, MMC/SD, or UART
• Crystal or External Clock Input (typically 24 MHz or 36 MHz)
• Debug Interface Support
• IEEE-1149.1 (JTAG) Boundary-Scan-Compatible
• Device Revision ID Readable by ARM
• 90nm Process Technology
• 3.3-V and 1.8-V I/O, 1.3-V Internal Windows is a trademark of Microsoft. All other trademarks are theproperty of their respective owners.

简介

TMS320DM355属于集成电路（IC）的DSP（数字信号处理器）。由TI制造生产的TMS320DM355DSP（数字信号处理器）数字信号处理器是类似于微处理器或微控制器的器件，但区别在于其内部架构经修改，适用于对连续数据流连续执行以乘法和加法运算为主的算法，而不是以条件逻辑或大量并发进程为主的算法。该器件通常用于诸如音频或视频信号处理等应用。