Functional Description
Sync Lock Support
Sync lock to the TV will be done using the external encoders PLL combined with the
display phase detector mechanism. The availability of this feature will be determined
which external encoder is in use.
Analog Content Protection
Analog content protection will be provided through the external encoder using
Macrovision 7.01. DVD software must verify the presence of a Macrovision TV encoder
before playback continues. Simple attempts to disable the Macrovision operation must
be detected.
Connectors
Target TV connectors support includes the CVBS, S-Video, Component, and SCART
connectors. The external TV encoder in use will determine the method of support.
10.5.2.1.5 Control Bus
Communication to SDVO registers and if used, ADD2 PROMs and monitor DDCs, are
accomplished by using the SDVOCTRLDATA and SDVOCTRLCLK signals through the
SDVO device. These signals run up to 1 MHz and connect directly to the SDVO device.
The SDVO device is then responsible for routing the DDC and PROM data streams to
the appropriate location. Consult SDVO device data sheets for level shifting
requirements of these signals.
Intel® SDVO Modes
The port can be dynamically configured in several modes:
•
Standard – Baseline SDVO functionality. This mode supports Pixel Rates between
25 and 270 MP/s. The mode uses three data pairs to transfer RGB data.
•
Extended – Adds Alpha support to data stream. This mode supports Pixel Rates
between 25 MP/s and 270 MP/s. The mode uses four data channels and is only
supported on SDVOB. Leverages channel C (SDVOC) Red pair as the Alpha pair for
channel B (SDVOB).
•
Dual Standard – This mode uses Standard data streams across both SDVOB and
SDVOC. Both channels can only run in Standard mode (3 data pairs) and each
channel supports Pixel Rates between 25 270 MP/s and 270 MP/s.
Dual Independent Standard - In Dual Independent Standard mode, each
SDVO channel will see a different pixel stream. The data stream across SDVOB
will not be the same as the data stream across SDVOC.
Dual Simultaneous Standard - In Dual Simultaneous Standard mode, both
SDVO channels will see the same pixel stream. The data stream across SDVOB will
be the same as the data stream across SDVOC. The display timings are identical,
but the transfer timings may not be (i.e., SDVOB clocks and data may not be
perfectly aligned with SDVOC clock and data as seen at the SDVO device(s)).
Since this mode uses just a single data stream, it uses a single pixel pipeline
within the GMCH.
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Datasheet
INTEL [ INTEL ]
