便携式媒体播放器(PMP)是一种手持的音频/视频系统,能从TV,DVD播放器,照相机录制音频/视频(A/V)信号,或从互联网中下载多媒体文件. TI的便携式媒体播放器(PMP)解决方案子系统包括DSP/CPU,数字视频输入,立体声音频编译码器(CODEC),CCIR656总线,串行接口,存储器接口,IDE接口和用户接口以及电源转换等.

The Portable Media Player is a handheld audio/video system that can record and playback audio/video (A/V) from TV, DVD player, camera, or media file downloaded from internet.
The Core Subsystems include:

DSP/CPU
- The DSP performs digital A/V processing in all standard media formats. The CPU executes operating-system software and controls data tranfer and user interface.

Digital Video Input
- comes from the analog video decoder or the CMOS/CCD camera. The analog video decoder converts the NTSC/PAL/S-Video analog input to raw digital video.

Stereo Audio Codec
- converts the analog audio input from microphone, FM receiver, and and stereo audio line source into digital audio.

CCIR656 Bus
- to input the raw digital video to the DSP.

Serial Interface
- performs file transfer with the host computer via USB, RS232, and JTAG serial interfaces.

Memory Interface
- handles a variety of direct memory interfaces with various portable memory media including compact flash card, SD card, MMC card, memory stick etc.

IDE Interface
- handles data transfer with a hard drive storage.

User Interface

- allows the user to control the PMP using the keypad, IR remote control, or the touch screen.

Power Conversion

- converts input power (battery or wall plug) to run various functional blocks.

下图为解决方案的方框图.