Monitor Control Command Set
VESA Monitor Command Control Set or MCCS is a computer standard developed by Video Electronics Standards Association. It defines a binary protocol for controlling the properties of computer monitors from a host device such as PC, set-top box, etc.
MCCS requires a bidirectional communucation protocol like Display Data Channel between host and display, although the specification does not favour any particular protocol.
A virtual control panel (VCP) code is a binary code that represents a single command entity in the MCCS language. Each command contains variable number of data parameters and command attributes.
The following groups of controls are defined in the standard:
- Factory Preset - commands for restoring factory defaults, as well as specifically restoring color, geometry, brightness/contrast, and TV settings defaults, and storing/restoring presets.
- Color Adjustment - commands that control color temperature, hue, and saturation.
- Geometry Adjustment - commands for adjusting CRT display geometry, such as parallelogram, pincushion, etc.
- Image Adjustment - various general commands such as display orientation, degauss, gamma, zoom, focus, brightness/contrast, backlight control, etc.
Three categories of controls exist:
- Continuous (C) - allow values between zero and a maximum value.
- Non-continuous (NC) - only support a limited set of values.
- Table (T) - large blocks of data.
Control data may be read and write (RW), read-only (RO), or write-only (WO).
The display exposes its supported internal controls via capability strings.
The original MCCS standard version 1 was released on September 11, 1998.
MCCS Version 2 was released on October 17, 2003. A major update of the standard, it provided support for flat panel displays, VESA DPVL (Digital Packet Video Link) standard; it added a range of television controls and introduced individual control of multiple windows on a display. New classes of VCP codes associated with asset management, secondary displays (for information, status, etc) and remote program calls to the display processor are introduced.
MCCS Version 2, Revision 1 was released on May 28, 2005 and included some minor updates, as well as clarifications and improved usability of the standard.
MCCS Version 3, released on July 27, 2006, was a major revision and update which introduced significant changes, however this revision has seen very little support from the industry.
The latest release of V2 standard is version 2.2, adopted February 2009.
Wikimedia Foundation. 2010.
Look at other dictionaries:
Control-Alt-Delete — This article is about the keyboard combination. For a list of keyboard shortcuts, see Table of keyboard shortcuts. For other uses, see Control Alt Delete (disambiguation). The keys Control Alt Delete highlighted on a QWERTY keyboard. Control Alt… … Wikipedia
COMMAND.COM — Developer(s) Seattle Computer Products, Microsoft Corporation, IBM, Novell and several others. Operating system DR DOS, FreeDOS, MS DOS, Novell DOS, OpenDOS, PC DOS, PTS DOS, ROM DOS, 86 DOS, Microsoft Windows (Windows 95 Wi … Wikipedia
Command & Conquer: Tiberian Sun — Tiberian Sun cover art, depicting protagonist GDI commander Developer(s) Westwood Studios Publish … Wikipedia
Control of the National Grid (UK) — The National Grid (UK) is the high voltage electric power transmission network in Great Britain, connecting power stations and major substations to ensure that electricity generated anywhere in Great Britain can be used to satisfy demand… … Wikipedia
Command Prompt — For other uses, see Command prompt (disambiguation). CMD redirects here. For other uses, see CMD (disambiguation). Command Prompt A component of Microsoft Windows … Wikipedia
Command center — War room redirects here. For the film, see The War Room. For the fictional location in the Power Rangers series, see Power Chamber. War Room at Stevns Fortress used in Denmark during the Cold War A command center (often called a war room) is any… … Wikipedia
Command key — The Command key The Command key, also historically known as the Apple key, open Apple key or meta key is a modifier key present on Apple Keyboards. The Command key s purpose is to allow the user to enter keyboard shortcut commands to GUI… … Wikipedia
List of Control Panel applets — The applets listed below are components of the Microsoft Windows control panel, which allows users to define a range of settings for their computer, monitor the status of devices such as printers and modems, and set up new hardware, programs and… … Wikipedia
Traffic Control — ➡ law enforcement * * * Introduction supervision of the movement of people, goods, or vehicles to ensure efficiency and safety. Traffic is the movement of people and goods from one location to another. The movement typically occurs… … Universalium
Multi-monitor — Multi Monitor, also called Multi Display and Multi Head, is the use of multiple physical display devices, such as monitors, televisions, and projectors, in order to increase the area available for computer programs running on a single computer… … Wikipedia