AC82G41SLGQ3 Datasheet, PDF (542/604 Pages) Intel Corporation – Intel® 4 Series Chipset Family

Functional Description
device. The SDVO device is then responsible for routing the DDC and PROM data
streams to the appropriate location. Consult SDVO device datasheets for level shifting
requirements of these signals.
13.5.2.7.6 Intel^® SDVO Modes
The port can be dynamically configured in several modes:
• Standard – Baseline SDVO functionality. This mode supports Pixel Rates between
25 and 200 MP/s. The mode uses three data pairs to transfer RGB data.
• 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 MP/s and 200 MP/s.
— Dual Independent Standard – In Dual Independent Standard mode, each
SDVO channel will transmit 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 transmit the same pixel stream. The data stream across
SDVOB will be the same as the data stream across SDVOC. The display timings
will be 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 uses just a single data stream, it uses a single pixel
pipeline in the GMCH.
13.5.3
Note:
Multiple Display Configurations
Microsoft Windows* 2000, Windows* XP, and Windows* Vista operating systems
provide support for multi-monitor display. Since the GMCH has several display ports
available for its two pipes, it can support up to two different images on different display
devices. Timings and resolutions for these two images may be different. The GMCH
supports Dual Display Clone, Dual Display Twin, and Extended Desktop.
Dual Display Clone uses both display pipes to drive the same content, at the same
resolution and color depth to two different displays. This configuration allows for
different refresh rates on each display.
Dual Display Twin uses one of the display pipes to drive the same content, at the same
resolution, color depth, and refresh rates to two different displays.
Extended Desktop uses both display pipes to drive different content, at potentially
different resolutions, refresh rates, and color depths to two different displays. This
configuration allows for a larger Windows Desktop by using both displays as a work
surface.
The GMCH does not operate in parallel with an external PCI Express graphics device.
The GMCH can, however, work in conjunction with a PCI graphics adapter.
13.5.3.1
High Bandwidth Digital Content Protection (HDCP)
The GMCH is the first desktop chipset with integrated HDCP keys. HDCP protection is
required to drive high definition content over the digital display. HDCP is supported on
both the digital ports B and C, but not simultaneously.
The GMCH supports HDCP over HDMI, Display Port and DVI display technologies. HDCP
key integration reduces the effort and resources of key handling and key buying at the
customer end.
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Datasheet