VESA DISPLAYPORT STANDARD V1.2 PDF

Overview[ edit ] DisplayPort is the first display interface to rely on packetized data transmission , a form of digital communication found in technologies such as Ethernet , USB, and PCI Express. It permits the use of internal and external display connections, and unlike legacy standards that transmit a clock signal with each output, the DisplayPort protocol is based on small data packets known as micro packets, which can embed the clock signal within the data stream. This allows for higher resolution using fewer pins. In addition, the interface is capable of carrying bi-directional USB signals.

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Audio and content protection are optional features and Philips is developing the Content Protection CP system, which will be licensed separately. The electrical interface is similar to the PCI Express physical layer and it provides a small, user-friendly external connector. DisplayPort can accommodate 4 connectors on a PCI card and has support for cables up to 15 meters in length.

The spec will support Plug-and-Play with robust interoperability. It is designed to be very cost competitive with existing digital display interconnects. The specification is scalable and extensible in terms of pixel depth, resolution, data types, and number of streams.

DisplayPort has a layered, modular architecture and can support various link media types i. What they mean by this is that a digital display interface needs to be compatible with subnm process technology in order to have broad availability in PCs. The DVI 1. As a result manufacturers are stuck with the rather large DVI connector.

A somewhat limited performance is available in terms of resolution and color depth for PC monitors see comparison chart for exactly how this might impact future displays. The HDMI specification is not geared to unifying internal and external display connections; its primary focus is consumer electronics. It supports isochronous stream transport and has one uncompressed video stream with associated audio ver. The Auxiliary Channel is characterized by consistent bandwidth, low latency, and is bi-directional.

It also features full authentication and session key establishment each encryption session is independent. There is an independent revocation system that can defeat "cloning" attacks and can also work within a standard SRM-based system. DPCP has standard license features including robustness rules and compliance rules.

About the author: Clint Deboer was terminated from Audioholics for misconduct on April 4th, He no longer represents Audioholics in any fashion.

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VESA® Introduces DisplayPort™ v1.2

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