Texas Instruments TVP5154EVM - Manual (Page 6)

1 Functional Description
1.1 Description Overview
User's Guide
SLEU069A – February 2006 – Revised July 2006
TVP5154EVM User's Guide
The TVP5154EVM evaluation module is a printed circuit board designed for evaluation of the TVP5154
quad video decoder. The board includes the TMS320DM642 digital signal processor (DSP) and is
designed with a 120-pin connector, which allows a connection to multiple backends; the evaluation module
(EVM) is shipped with a professional encoder module. The board is designed to provide ease of use, while
allowing full evaluation of the video decoder.
The TVP5154EVM uses the PC parallel port to emulate the I 2 C bus, which provides communication with
the TVP5154 video decoder, DM642, and the video encoder. The Windows™ Video Control Center
(WinVCC) application software that communicates with the devices via the I
2 C is provided on the EVM
CD-ROM.
The analog video inputs supported by the TVP5154EVM include composite video and S-video. More detail
about the video inputs is discussed in section 2.3 Video Input Description. In general, the video decoder
converts the analog video input signal into digital component data. This data and the associated clocks
from the video decoder are sent to the DM642, which provides various image capture and display modes.
The DM642 is setup in I
2 C slave mode and is controlled through virtual I 2 C registers. The video encoder
then converts the digital data from the DM642 back into analog video. The analog video outputs supported
by the EVM include composite video, S-video, and component video. These are all output simultaneously.
To experiment with the programmable features of the TVP5154 video decoder and the video encoder, the
parallel port of the TVP5154 is connected to the parallel port of a PC. WinVCC, a Windows-compatible
application provides the user interface for performing register-level and high-level control of the TVP5154
video decoder and the video encoder.
Code Composer Studio is a trademark of Texas Intruments.
All other trademarks are the property of their respective owners.
TVP5154EVM User's Guide 6 SLEU069A – February 2006 – Revised July 2006
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