<= /span>

= &nb= sp; = &nb= sp; = &nbs= p; MCCS Standard

VESA &= nbsp; &nbs= p; &= nbsp; &nbs= p; &= nbsp;

Video Electronics Standards Association &nbs= p; &= nbsp; &nbs= p; &= nbsp; &nbs= p; &= nbsp; &nbs= p;

860 Hillview Court, S= uite 150 &= nbsp; &nbs= p; &= nbsp; &nbs= p; Phone: (408) 957-9270

Milpitas, CA 95035 &= nbsp; &nbs= p; &= nbsp; &nbs= p; &= nbsp; &nbs= p; &= nbsp; Fax: (408) 957-9277

VESA Monitor Control Command <= /b>

Set (MCCS) Standard

=

Version 2, Revisio= n 1

May 28, 2005<= /o:p>

Purpose

The purpose of this standard is to define a univ= ersal set of commands used to control the screen settings of displays which can be used within any communication protocol established between the host and display.

Summary

This document describes the standardized list of commands and controls to be used in identifying and controlling the display= by means of an application running on the host. The list of commands and contr= ols is kept to a minimum, while supporting the control of virtually all paramet= ers related to the screen settings in the display. It does not describe how the= se commands are packaged in a particular interface protocol.

Further, the document assumes the interface supp= orting the display can issue an unsolicited attention call (interrupt) to alert the host that something has happened outside the control of the host. The targe= ted display devices are displays attached to the video output of PCs and workst= ations, however, it is not restricted to this area.

Revision 1 adds additional VCP codes.=

=

= Preface

Intellectual Property

Copyright © 2003= , 2004, 2005 Video Electronics Standards Association. All rights reserved.

While every precautio= n has been taken in the preparation of this standard, the Video Electronics Standards Association and its contributors assume no responsibility for errors or omissions, and make no warranties, expressed or implied, of functionality or suitability for any purpose.

Trademarks

All trademarks used w= ithin this document are the property of their respective owners. VESA is a registered trademark of = the Video Electronics Standards Association.

Patents=

VESA proposals and st= andards are adopted by the Video Electronics Standards Association without regard to whether their adoption may involve any patents or articles, materials, or processes. Such adoption does= not assume any liability to any patent owner, nor does it assume any obligation whatever to parties adopting the proposals or standards documents.

Support=

Clarifications and application notes to support this standard may be written. To obtain the latest standard and = any support documentation, contact VESA.

If you have a product= which incorporates Monitor Control Command Set (MCCS), you should a= sk the company that manufactured your product for assistance. If you are a manufacturer, VESA can assist you with any clarification you may require. All comments or reported errors sh= ould be submitted in writing to VESA using one of the following methods.

·      =    Fax        &= nbsp;   408-957-9277, direct this note to Technical Support at VESA

·      =    e-mail        support@vesa.org

·      =    mail to       Techn= ical Support

            =             V= ideo Electronics Standards Association

        &= nbsp;           &nbs= p;   860 Hillview Court, Suite 150

        &= nbsp;           &nbs= p;   Milpitas, CA 95035<= /span>

Acknowledgments

This document would not hav= e been possible without the efforts of the VESA Display Systems committees. In particular, the following individuals and their companies contributed significant time and knowledge.

Table 1 : Main Contributors to Version 2, Revi= sion 1

Bryan Speece

Entech Taiwan

John Frederick

Hewlett-Packard

Eric Wogsberg

Jupiter Systems

Glenn Adler

Philips Consumer Electronics=

Mike Anderson

Portrait Displays

Scott Anderson

Portrait Displays

Ian Miller

Samsung Information Systems = America<= /st1:place>

Task Group Chair & Editor

Paul Doyle

Sony

Jim Webb

Tech Source

Alain d’Hautecourt

ViewSonic

Task Group Vice-chair & Secretary

Table 2:= Main Contributors to Version 2, Revision 0

Don Chambers

Cables-to-Go

Tamuka Ishida

EIZO NANAO

Yuichiro Wada

Fujitsu

John Frederick

Hewlett-Packard

Bob Myers

Hewlett-Packard

Youichi Igarashi

Hitachi

Kai Schleupen

IBM

Hiroshi Yamashita

International Display Techno= logy

Hironobu Yasui

Mitsubishi Electric Corp.

Jack Hosek

NEC-Mitsubishi.

Kazuaki Takamoto

NEC Mitsubishi Electric Visu= al Systems

Hideki Tanizoe

NEC Mitsubishi Electric Visu= al Systems

Yoshihisa Kudou

NEC Viewtechnology

Seiji Kobayashi

Plus Vision

George Wiley

Qualcomm

Bryan Speece

Portrait Displays

Ian Miller

Samsung Information Systems = America

Workgroup leader

Steve Hasegawa

Sony Electronics

Doug Gorny

Three-Five Systems

Alain d’Hautecourt

ViewSonic

= Revision History:

Version 1 =       September 11, 1998

Initial release of the standard.

Version 2 =       October 17, 2003

A major update, in pa= rticular to provide support for flat panel displays and the VESA DPVL (Digital packet Video Link) standard. Extended the scope and range of controls for televisi= on functions and introduced commands to permit individual control of multiple windows on= a display. Many existing VCP codes have expanded functionality and/or clearer definitions. To ensure that t= he requirements of compatibility and an intuitive user interface can be readily achieved, support for 2 commands (see section 5) is a compliance requirement for MCCS version 2.

Additionally, new cla= sses of VCP codes associated with asset management, secondary displays (for information, status, etc) and remote program calls to the display processor= are introduced. It is expected th= at these will become important to the industry over time.

Version 2, Revision 1            M= ay 28, 2005

A significant revision intended to clarify the definitions and organization of data for many VCP codes. Additional emphasis also applied to the importance of the capability string formats to allow simple parsing and interoperability.

The capabilities of s= everal VCP codes are expanded and new codes have been added. All reflect the latest product design practice or anticipated developments.

Previous restrictions= on some VCP codes to use for television only have been removed.
The minimum compliance requirements of MCCS Version 2 were maintained without change. <= /span>

Section 5.1 updated

54h command expanded<= o:p>

Table of contents

Purpose..= ...........................................................................= ...........................................................................= ................................. 1

Summary.................................................................= ...........................................................................= .......................................... 1

Preface.................................................................= ...........................................................................= ................................................ 2

Revision History:..........................................= ...........................................................................= ................................................... 4

·           Table of contents...................................................................= ...........................................................................= 5

Tables.................................................................= ...........................................................................= ............................................... 6

1.    &= nbsp;     OVERVIEW.= ...........................................................................= ...........................................................................= ............. 7

1.1 Summary..........................................= ...........................................................................= .............................................................. 7

1.2 Background..........................................= ...........................................................................= ....................................................... 7

1.3 Standard Objectives= ..........................................= ...........................................................................= ...................................... 7

1.4 Reference Documents= ..........................................= ...........................................................................= ................................... 8

2.    &= nbsp;     Functional Characteristics.................................................................= ..................................................... 9

2.1 Operational Model..........................................= ...........................................................................= ........................................ 9

2.2 Implementation of M= CCS on different interfaces................= ...........................................................................= ... 9

3.    &= nbsp;     Requests.= ...........................................................................= ...........................................................................= ............ 10

4.    &= nbsp;     Display Control Codes...............................................................= .................................................................. <= /span>11

4.1 Control Codes That = Return More Than 2 Bytes...................= ...........................................................................= .. 11

4.2 Control Grouping..........................................= ...........................................................................= ........................................ 11

4.2.1      Geometry.= ...........................................................................= ...........................................................................= ............. 11

4.2.2      Preset Operations...................................................................= ...........................................................................= ...... 11

4.2.3      Image adjustment....................................................................= ...........................................................................= ...... 11

4.2.4      Audio functions.....................................................................= ...........................................................................= ........ 11

4.2.5      Display Control.....................................................................= ...........................................................................= ........ 11

4.2.6      DPVL functions......................................................................= ...........................................................................= ....... 11

4.2.7      Miscellaneous functions.................................................................= ........................................................................ 11

4.2.8      Manufacturer Specific...............................................................= ...........................................................................= .. 11

4.3 Control Function..........................................= ...........................................................................= ......................................... 12

4.3.1      Continuous Controls.................................................................= ...........................................................................= ... 12

4.3.2      Non-continuous controls.................................................................= ....................................................................... 12

4.3.3      Table controls......................................................................= ...........................................................................= .......... 12

4.3.4      Manufacturer-specific controls..................................................................= .......................................................... = PAGEREF _Toc100744365 \h = 12

5.    &= nbsp;     Compliance..........................................................................= ...........................................................................= ........ 13

5.1 Capability String F= ormat..........................................= ...........................................................................= ......................... 13

6.    &= nbsp;     VCP Command Definitions.................................................................= ........................................................... <= !--[if supportFields]> = PAGEREF _Toc100744368 \h = 15

7.    &= nbsp;     VCP Code Indexes....................................................................= ...........................................................................= . 52

8.    &= nbsp;     Glossary of Abbreviations, Acronyms and Terms..........................................= ........................ 62

9.    &= nbsp;     Appendix A..........................................................................= ...........................................................................= ........... 63

= Tables

Table 1    Main Contributo= rs to Version 2, Revision 1. 3

Table 2    Main Contributo= rs to Version 2, Revision 0. 3

Table 3    Reference docum= ents. 8

Table 4    Display Request= s. 10

Table 5   VCP Codes –Geometry = 15

Table 6    VCP Codes –Preset Functions. 20

Table 7    VCP Codes –Image= Adjustment 21

Table 8<= span style=3D'mso-spacerun:yes'>   VCP Codes –Audio Funct= ions. 37

Table 9<= span style=3D'mso-spacerun:yes'>   VCP Codes –Display Con= trol = 38

Table 10 VCP Codes for DPVL Support= = 41

Table 11 VCP Codes –Miscellaneous Functions. 43

Table 12 VCP Codes –Manufacturer Specific<= span style=3D'color:windowtext;display:none;mso-hide:screen;text-decoration:none; text-underline:none'>. 50

Table 13 VCP Code Table Reference. 52

Table 14   VCP Code Numeric Ind= ex. 52

Table 15   Alphanumeric Geometry Cross-Reference. 58

Table 16   Alphanumeric Preset Function Cross-reference. 59

Table 17   Alphanumeric Image Adjustment Cross-reference. 59

Table 18   Alphanumeric Audio Function Cross-reference. 60

Table 19   Alphanumeric Display Control Cross-reference. 60

Table 20   Alphanumeric DPVL Fu= nction Cross-reference. 61

Table 21 Alphanumeric Miscellaneous Functions Cross-reference. 61

=

1&nb= sp;         OVERVIEW

= Summary

This document describes the standardized lis= t of control commands that may be used to control a display by means of an application running on the host. This concept is referred to a ‘virtu= al control panel’ or VCP.

The list of comman= ds and controls is kept to a minimum while supporting the control of all common parameters related to the image settings on the display and other common features.

It does not descri= be how these commands are used with a particular interface protocol nor does this = document describe the way a particular protocol queries and changes the settings of = the controls, see appropriate interface standard for these details e.g. VESA DD= C/CI standard.

A companion docume= nt will be maintained, called MCCS_UP.pdf. This will include such things as correction of known errors, extensions of VCP code value definitions and new VCP codes proposed for inclusion in the next MCCS revision.

1.1&= nbsp;            Background

Due to the emergence of new digital interfac= es on hosts (PCs and workstations) it has become possible to control the setti= ngs of the display by means of an application running on the host.

Historically, disp= lays have provided hardware control panels (on screen display or OSD) to accompl= ish these device adjustments. Using the computer in addition to these manual controls increases user convenience and provides the opportunity for a standardized user interface regardless of the manufacturer of a particular display.

Although there are different ways to set up the communication, the basic content of the information communicated can be standardized offering everyone the same experience in accomplishing the same goal.

1.2&= nbsp;            Standard Objectives

The standard aims to provide for a standard = list of display controls and commands, which can be used irrespective of the interface used to support the necessary communication between the host and = the display.

The list is chosen= to be the minimum list necessary to support virtually all parameters related to t= he image settings. A number of codes are available for manufacturers to use wh= ere they have design features not covered by the standard codes.

1.3&= nbsp;            Reference Documents

Document

Version / Revision

Date

VESA Enhanced Display Data Channel (E-DDC) Sta= ndard

Version 1.1

March 2004

VESA Enhanced Exten= ded Display Identification (E-EDID) Standard

Release A, Rev. 1

February 2000<= /o:p>

VESA Display Power Management Signaling (DPMS) Standard

Version 1.0, Rev.1.0

August 1993

VESA Display Power Management (DPM) Standard

Release A

March 2003

VESA Display Data Channel Command Interface (D= DC/CI) Standard

Version 1, Rev. 1

October 2004

VESA Digital Packet Video Link (DPVL) Standard=

Version 1

April 2004

VESA MCCS Update Document [1]<= /a>

Latest

TBD

VESA Display Information Extension Block (DIEX= T) standard

Release A

August 2001

Access Bus Specification [2]<= /a>

Version 3.0

Sept. 1995

Table 3 –Reference Documents

Bryan Speece	Entech Taiwan
John Frederick	Hewlett-Packard
Eric Wogsberg	Jupiter Systems
Glenn Adler	Philips Consumer Electronics=
Mike Anderson	Portrait Displays
Scott Anderson	Portrait Displays
Ian Miller	Samsung Information Systems = America<= /st1:place>	Task Group Chair & Editor
Paul Doyle	Sony
Jim Webb	Tech Source
Alain d’Hautecourt	ViewSonic	Task Group Vice-chair & Secretary

Don Chambers	Cables-to-Go
Tamuka Ishida	EIZO NANAO
Yuichiro Wada	Fujitsu
John Frederick	Hewlett-Packard
Bob Myers	Hewlett-Packard
Youichi Igarashi	Hitachi
Kai Schleupen	IBM
Hiroshi Yamashita	International Display Techno= logy
Hironobu Yasui	Mitsubishi Electric Corp.
Jack Hosek	NEC-Mitsubishi.
Kazuaki Takamoto	NEC Mitsubishi Electric Visu= al Systems
Hideki Tanizoe	NEC Mitsubishi Electric Visu= al Systems
Yoshihisa Kudou	NEC Viewtechnology
Seiji Kobayashi	Plus Vision
George Wiley	Qualcomm
Bryan Speece	Portrait Displays
Ian Miller	Samsung Information Systems = America	Workgroup leader
Steve Hasegawa	Sony Electronics
Doug Gorny	Three-Five Systems
Alain d’Hautecourt	ViewSonic

Document	Version / Revision	Date
VESA Enhanced Display Data Channel (E-DDC) Sta= ndard	Version 1.1	March 2004
VESA Enhanced Exten= ded Display Identification (E-EDID) Standard	Release A, Rev. 1	February 2000<= /o:p>
VESA Display Power Management Signaling (DPMS) Standard	Version 1.0, Rev.1.0	August 1993
VESA Display Power Management (DPM) Standard	Release A	March 2003
VESA Display Data Channel Command Interface (D= DC/CI) Standard	Version 1, Rev. 1	October 2004
VESA Digital Packet Video Link (DPVL) Standard=	Version 1	April 2004
VESA MCCS Update Document [1]<= /a>	Latest	TBD
VESA Display Information Extension Block (DIEX= T) standard	Release A	August 2001
Access Bus Specification [2]<= /a>	Version 3.0	Sept. 1995