Kontron COMe Starterkit Eval T2 - Manual (Page 203)

Appendix A: Deprecated Features
9. Appendix A: Deprecated Features
The following content was removed from the main part of this document because it is no longer
part of the COM.0 Rev. 2.1 specification. It is kept here in the appendix for reference.
9.1. TV-Out
9.1.1. Signal Definitions
TV-Out signals are defined on COM Express connector row B. Up to 3 individual digital-to-
analog converter (DAC) channels are available on the connector. The following video formats
may be supported:
Composite Video: All color, brightness, blanking, and sync information are encoded onto a
single signal.
S-Video: (Separated Video) video signal with two components, brightness (luma) and color
(chroma). This is also known as Y-C video.
Component Video: A video signal that consists of three components. The components may be
RGB or may be encoded using other component encoding schemes such as YUV, YCbCr, and
YPbPr.
A COM Express Module may support all, some, or none of these formats. Within these formats,
there are different encoding schemes that may be used. The most widely used encoding
schemes are NTSC (used primarily in North America) and PAL (used primarily in Europe)
Which format and encoding options are available are Module and vendor dependent. Only one
output mode can be used at any given time.
Table 77: TV-Out Signal Definitions
Signal Pin Description I/O Comment
TV_DAC_A B97 TV-DAC channel A output supporting:
Composite video: CVBS
Component video: Chrominance (Pb)
S-Video: not used O Analog Analog output
TV_DAC_B B98 TV-DAC channel B output supporting:
Composite video: not used
Component video: Luminance (Y)
S-Video: Luminance (Y) O Analog Analog output
TV_DAC_C B99 TV-DAC channel C output supporting:
Composite video: not used
Component: Chrominance (Pr)
S-Video: Chrominance (C) O Analog Analog output
9.1.2. TV-Out Connector
Figure 78: TV-Out Video Connector (combined S-Video and Composite)
PICMG ® COM Express ® Carrier Board Design Guide Rev. 2.0 / December 6, 2013
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