<= /o:p>

= ;

VESA^&=
reg; &= nbsp; = &nb= sp; = M1 Display Interface System <= /span>

Video Electronics Stan= dards Association

= ;

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

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

VESA M1 Display Interface System Standard

Version 1.0

August 16, 2001

Purpose

Defines a flexible interconnection system for computer graphics displays.

= ;

Summary

While most= other interface specifications, such as DVI, focus solely on the host (computer) = side of the video interface, the M1 standard concentrates only on the display-si= de interface. The M1 connector s= ystem enables displays to be connected to a host system with any of the following video connectors: VGA, DVI, DFP or P&D. The M1 system emphasizes performan= ce, ease of use, and flexibility. This standard does not cover any signal specifications or detailed connector specifications. Please refer to the respective host interface specification= for such details.

= ;

Preface

Intellectu= al Property

= ;

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

Trademarks=

All tradem= arks used within this document are the property of their respective owners.

= ;

· VESA, E-DDC, E-EDID and P&D are trademarks of the V= ideo Electronics Standards Association.

· PanelLink and TMDS = are trademarks of Silicon Image Inc.

· MicroCross is a trad= emark of Molex Inc.

· I²C is a trademark of Philips

· USB Icon is a trademark of the USB Implementer’s Forum, Inc.

· HDCP is a trademark of Digital Content Protection, LLC<= o:p>

Patents

VESA propo= sals and standards are adopted by the Video Electronics Standards Association wi= thout regard as to whether their adoption may involve patents on articles, materi= als, or processes. Such adoption does not assume any liability to any patent own= er, nor does it assume any obligation whatsoever to parties adopting the propos= als or standards.

= ;

Support fo= r this Standard

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

= ;

If you hav= e a product that incorporates M1, you should ask 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 error reports should be submitted in writing to VESA using one of following methods:

= ;

· Fax &= nbsp; 40= 8-957 9277, direct this fax to Technical Support at VESA

· Email = support@vesa.org

· Mail to &= nbsp; Technical Support

= &nb= sp; = Video Electronics Standards Association

&nbs= p; &= nbsp; <= span style=3D'font-size:11.0pt;mso-bidi-font-size:10.0pt;layout-grid-mode:line'>= 860 Hillview Court, Suite 150

Milpitas, CA 95035<= /p>

Revision H= istory

= ;

Intial release of standard, August 16, 200= 1

= ;

Acknowledg= ments

= ;

This docum= ent would not have been possible without the efforts of the VESA Display Commit= tee. In particular, the following individuals contributed significant time and knowledge to this standard.

= ;

Terms and Abbreviations

Term/Ab= breviation

Descrip= tion

CRT

Cathode Ray Tube

DDC

Display Data Channel (VE= SA)

DDWG

Digital Display Working Group (www.ddwg.org)

DVI

Digital Visual Interface (Specification issued by DDWG)

E-DDC<= /p>

Enhanced DDC (VESA)=

EDID

Extended Display Identif= ication Data (VESA)

E-EDID=

Enhanced EDID (VESA)

HDCP

High-Bandwidth Digital C= ontent Protection

I²C

Trademark of Philips use= d to refer to the Inter IC or I²C&= nbsp; Bus

LCD

Liquid Crystal Display

P&D

Trademark of VESA for th= e Plug and Display standard

Pan= elLink

Trademark of Silicon Ima= ge for their TMDS technology (see note 1)

Pan= elBus

Trademark of Texas Instr= uments for their TMDS technology (see note 1)

RGBHV<= /p>

Red, Green & Blue Vi= deo, Hz. and Vt. Syncs.

RXn=

TMDS Receiver number ‘n’

TMDS¹

Transition Minimized Differential Signaling

TXn=

TMDS Transmitter number ‘n’

USB

Universal Serial Bus

VESA

Video Electronics Standa= rds Association

¹ The term T= MDS will generally be used in this document to denote PanelLink= ™ or compatible technologies.

= ;

Reference DocumentsNote: Versions listed are current. Howev= er, users of this standard are advised to ensure they have the latest versions of referenced standards and documents.

Standar= d Name

Version= /

Date

Digital Visual Interface= (DVI)

1.0

Apr. '00

Universal Serial Bus Mon= itor Control Class Definition

0.9g

Nov. '96

Universal Serial Bus Specification

2.0

Apr '00

VESA Digital Flat Panel Standard (DFP)

1.0

Feb. '99

VESA Display Monitor Tim= ing Standard

1.0, Rev. 0.8=

Sept. '98

VESA Display Power Manag= ement Signaling Standard (DPMS)

1.0, Rev. 1

Aug. '93

VESA Enhanced Display Da= ta Channel Standard (E-DDC)

1.0

Sept. '99

VESA Enhanced Extended D= isplay Identification Data Standard (E-EDID)

Rel= . A, Rev.1

Feb. '00

VESA Enhanced Video Conn= ector (P&D-A) Physical Connector Standard

1.0, Rev. 3

July '98

VESA Plug and Display St= andard (P&D)

1.0

June ‘97

VESA Video Signal Interf= ace Standard (VSIS)<= /span>

1.0, Rev 1

Mar. '00

Table of Contents=

1.    Introduction___________________________________________= ____________________ 6

1.1=      Structure = of the Standard___________________________________________________ 6

2.    Connector M1 Overview___________________________________________= __________ 6

2.1     M1 Family of Connector= s__________= _________________________________________ 7

2.2=      Plug and Receptacle Physical Compatibility Summary___________________________ <= !--[if supportFields]> = PAGEREF _Toc506175264 \h = 8

2.3=      M1 Signals= __________= _____________________________________________________ 8

2.4     = Analog/Digital Detection________________________________= ___________________ 9

2.5=      Analog vid= eo signals_______________________________________________________ 9

2.6     TMDS video signals__________= _____________________________________________ 9

2.7     USB Signals__________= ____________________________________________________ 9

2.8=      Hot -Plug = Detect signal_____________________________________________________ 9

2.8.1       Use of HPD signal to indicate change of display powered status_____________________________ 9

2.8.2       Use of HPD signal to s= ignal change of screen orientation___________________________________ = 9

2.8.3       Use of HPD signal to p= ower an external device__________________________________________ 9

3.    Detection of Display Connect/Disconnect____________= ____________________________ 9

3.1=      Power up m= ode__________= _________________________________________________ 9

3.2=      Host shut = down, unplug or re-start___________________________________________ 9

3.3=      DDC channel availability___________________________________________________ = 9

4.    M1 Connector for Analog and Digital Video_________________= ____________________ 9

4.1=      Connector physical specification___________________________________________= __ 9

4.2=      Contact Sequencing_______________________________________________________ 9

5.    Compliance with Connector M1 Standard______________________= _________________ 9

5.1=      An M1-DA Compliant Display.______________________________________________ 9

5.2=      An M1-D Compliant Display________________________________________________ = PAGEREF _Toc506175283 \h = 9

5.3=      An M1-A Compliant Display________________________________________________ = PAGEREF _Toc506175284 \h = 9

5.4=      M1 Identification_________________________________________________________ <= /span>9

6.    Example Cable Pinouts betwe= en M1 and Common Host side Video Interface Connectors_ 9

6.1=      DFP + USB = ó M1-D -cab= le__________= _______________________________________ 9

6.2=      DVI Digita= l + USB ó M1-D -cab= le__________= _________________________________ 9

6.3=      P&D-D = + USB ó M1-D -cab= le__________= ____________________________________ 9

6.4=      VGA + USB = ó M1-A -cab= le__________= ______________________________________ 9

6.5=      DVI Analog= + USB ó M1-A -cab= le__________= _________________________________ 9

6.6=      P&D-A = + USBó M1-A -cab= le__________= _____________________________________ 9

7.    Example__________________________________________________________________= 9

Index of Tables

Table 2‑1: Plug/Receptacle Phy= sical Compatibility            =             &nb= sp;            =             &nb= sp;            =             &nb= sp;          8

Table 2‑2: M1-DA Display-Side Interface Signals      &n= bsp;            = ;            &n= bsp;            = ;            &n= bsp;            = ;            &n= bsp;            = ; 8

Table 4‑1: Contact Sequencing        &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;             = 9

Index of F= igures

Figure 2‑1: M1 Connector Family – Possible Configurations        &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;       7

Figure 4‑1: M1-DA Receptacle Connector – Basic Mating Interface Connections            =        9

Figure 4‑2: M1-DA reference Hole Pattern (Receptacle)  &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           9

Figure 4‑3: M1-DA, M1-D, and M1-A Recommended Panel Cut-out  &nbs= p;            &= nbsp;           &nbs= p;            &= nbsp;           &nbs= p;         9

1.&n= bsp;    Introduction

This document describes a standard connector used in analog, digital or dual interface displays with detachable signal cable. For detailed specification of the signals please refer to the host side interfa= ce standards such as VESA P&D, VESA DFP, DDWG DVI, and USB. All video interface standards supported by M1 use VESA E-DDC and VESA E-EDID for disp= lay identification.

1.1&= nbsp;    Structure of the Standard

There are several distinct sections to this standard:

Section 1  &n= bsp;       Introduction

Section 2  &n= bsp;       Connector overview, pin assignments

Section 3  &n= bsp;       Operation of display

Section 4  &n= bsp;       Electrical signal specifications

Section 5  &n= bsp;       Physical connector definition

Section 6  &n= bsp;       Compliance

Section 7    &n= bsp;     Signal cable examples

2.     Connector M1 Overview

The purpos= e of this standard is to define a single connector system for the display end of= the interconnect between a display device and host com= puter. The connector is capable of supporting both analog and digital display interface requirements, allowing a wide range of host systems to connect to= a single video port on the display, which may be a CRT, flat panel or other display device. Also included is information about cable pin out for conver= sion between M1 displays and host systems with P&D, DFP, VGA or DVI connecto= rs.

= ;

This stand= ard only defines the interface at the connector on the display. Supported interfaces include:

= ;

Digital interface based on TMDS

Analog interface RGBHV

Analog int= erface displays are typified by, but not restricted to, CRT-based displays

= ;

The standa= rd also defines interfaces for VESA DDC and USB signals.

= ;

= ;

= ;

Key features and benefits of the VESA M1 interface are:

·     Single con= nector for any display device

·     Enables fo= olproof operation of Plug-and-Play (E-DDC) for DVI equipped computers using dual-mo= de displays. Better than using DVI-I on the display.

·     Enhances ease-of-use by keying upstream/downstream video connectors so inputs and outputs cannot be confused.

·     Lowers cab= le cost by providing interoperability from multiple vendors. True industry standard.

·     Display can (optionally) power external link extender via Hot-plug Detect pin

·     Lower weig= ht than combination of DVI-I and USB Type B receptacles

·     Complete s= ystem (analog, digital, and dual-mode) allows a family of displays with different I/Os to be based on a single circuit board.

·     High quali= ty display output

·     Scaleable = cost and performance

·     Interopera= ble solution for analog and digital video interface hosts

·     Signal compatible with most existing PC video interfaces

·     Low electromagnetic emission

The display receptacle interfaces defined in this standard are referred to as:

M1-DA Conn= ector M1 – Digital and Analog for dual interface mode displays. =

M1-A Conne= ctor M1 – Analog for analog interface displays.

M1-D Conne= ctor M1 – Digital for digital interface displays.

2.1&= nbsp;    M1 Family of Connectors

The VESA M1 Display Interface System Proposed Standard builds on the VESA P&D stand= ard for digital and analog host interface.

Host e= nd connector alternatives

Display end Cable: Plug

M1-D

   &nb= sp;            =             &nb= sp;            =

Analog cable, M1-A

VGA

DVI - I

P&D - A

DFP=

DVI= - D DVI - I

P&D - D

Figure 2‑1: M1 Conne= ctor Family – Possible Configurations

Note: The black pins/sockets above indicate the pins/sockets used in the minimum configurat= ion.

This famil= y of connectors uses a combination of shell shape and other physical features. This ensures that displays using a given interface type (either analog or digital) will = not be connected to hosts which do not provide support for that interface, but = can always be connected to hosts on which that interface is supported.

2.2&= nbsp;    Plug and Recepta= cle Physical Compatibility Summary<= /o:p>

Display Receptacle

M1-A

Display Receptacle

M1̵= 1;DA

Display Receptacle

M1̵= 1;D

Cable Plug: M1 – A

Yes

Yes

No

Cable Plug: M1 – D

No

Yes

Yes

Table 2‑1 Plug and Receptacle Physical Compatibility=

Term/Ab= breviation	Descrip= tion
CRT	Cathode Ray Tube
DDC	Display Data Channel (VE= SA)
DDWG	Digital Display Working Group (www.ddwg.org)
DVI	Digital Visual Interface (Specification issued by DDWG)
E-DDC<= /p>	Enhanced DDC (VESA)=
EDID	Extended Display Identif= ication Data (VESA)
E-EDID=	Enhanced EDID (VESA)
HDCP	High-Bandwidth Digital C= ontent Protection
I²C	Trademark of Philips use= d to refer to the Inter IC or I²C&= nbsp; Bus
LCD	Liquid Crystal Display
P&D	Trademark of VESA for th= e Plug and Display standard
Pan= elLink	Trademark of Silicon Ima= ge for their TMDS technology (see note 1)
Pan= elBus	Trademark of Texas Instr= uments for their TMDS technology (see note 1)
RGBHV<= /p>	Red, Green & Blue Vi= deo, Hz. and Vt. Syncs.
RXn=	TMDS Receiver number ‘n’
TMDS¹	Transition Minimized Differential Signaling
TXn=	TMDS Transmitter number ‘n’
USB	Universal Serial Bus
VESA	Video Electronics Standa= rds Association

Standar= d Name	Version= /	Date
Digital Visual Interface= (DVI)	1.0	Apr. '00
Universal Serial Bus Mon= itor Control Class Definition	0.9g	Nov. '96
Universal Serial Bus Specification	2.0	Apr '00
VESA Digital Flat Panel Standard (DFP)	1.0	Feb. '99
VESA Display Monitor Tim= ing Standard	1.0, Rev. 0.8=	Sept. '98
VESA Display Power Manag= ement Signaling Standard (DPMS)	1.0, Rev. 1	Aug. '93
VESA Enhanced Display Da= ta Channel Standard (E-DDC)	1.0	Sept. '99
VESA Enhanced Extended D= isplay Identification Data Standard (E-EDID)	Rel= . A, Rev.1	Feb. '00
VESA Enhanced Video Conn= ector (P&D-A) Physical Connector Standard	1.0, Rev. 3	July '98
VESA Plug and Display St= andard (P&D)	1.0	June ‘97
VESA Video Signal Interf= ace Standard (VSIS)<= /span>	1.0, Rev 1	Mar. '00

		Display Receptacle M1-A	Display Receptacle M1̵= 1;DA	Display Receptacle M1̵= 1;D
Cable Plug: M1 – A	Yes	Yes	No
Cable Plug: M1 – D	No	Yes	Yes