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82G33 Datasheet(PDF) 365 Page - Intel Corporation |
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82G33 Datasheet(HTML) 365 Page - Intel Corporation |
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365 / 437 page ![]() Functional Description Datasheet 365 10.6.2.4 HDMI Capabilities The GMCH is compliant with HDMI. When combined with a HDMI compliant external device and connector, the external HDMI device can support standard, enhanced, or high-definition video, plus multi-channel digital audio on a single cable. The GMCH has a high speed interface to a digital display (e.g., flat panel or digital TV). The GMCH can drive a digital TV up to 1600x1200. 10.6.2.5 LVDS Capabilities The GMCH may use the multiplexed SDVO ports to drive an LVDS transmitter. Flat Panel is a fixed resolution display. The GMCH supports panel fitting in the transmitter, receiver or an external device, but has no native panel fitting capabilities. The GMCH will however, provide unscaled mode where the display is centered on the panel. The GMCH supports scaling in the LVDS transmitter through the SDVO stall input pair. 10.6.2.6 TV-IN Capabilities The GMCH in conjunction with ADD2/Media Expansion Card can function as a TV- Tuner card capable of taking in both analog or HD signals. 10.6.2.7 TV-Out Capabilities Although traditional TVs are not digital displays, the GMCH uses a digital display channel to communicate with a TV-Out transmitter. For that reason, the GMCH considers a TV-Output to be a digital display. The GMCH supports NTSC/PAL/SECAM standard definition formats. The GMCH will generate the proper timing for the external encoder. The external encoder is responsible for generation of the proper format signal. Since the multiplexed SDVO interface is a NTSC/PAL/SECAM display on the TV- out port can be configured to be the boot device. It is necessary to ensure that appropriate BIOS support is provided. If EasyLink is supported in the GMCH, then this mechanism could be used to interrogate the display device. The TV-out interface on GMCH allows an external TV encoder device to drive a pixel clock signal on SDVO_TVClk[+/-] that the GMCH uses as a reference frequency. The frequency of this clock is dependent on the output resolution required. 10.6.2.7.1 Flicker Filter and Overscan Compensation The overscan compensation scaling and the flicker filter is done in the external TV encoder chip. Care must be taken to allow for support of TV sets with high performance de-interlacers and progressive scan displays connected to by way of a non-interlaced signal. Timing will be generated with pixel granularity to allow more overscan ratios to be supported. 10.6.2.7.2 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. |
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