EN 61883-6:2005

Consumer audio/video equipment - Digital interface - Part 6: Audio and music data transmission protocol

describes a protocol for the transmission of audio and music data employing IEEE 1394 and specifies essential requirements for the application of the protocol. This protocol can be applied to all modules or devices that have any kind of audio and/or music data processing, generation and conversion function blocks. This document deals only with the transmission of audio and music data; the control, status and machine-readable description of these modules or devices should be defined outside of this document according to each application area.

Audio-Video-Geräte der Unterhaltungselektronik - Digitale Schnittstelle - Teil 6: Übertragungsprotokoll für Ton- und Musikdaten

Matériel audio/video grand public - Interface numérique - Partie 6: Protocole de transmission de données audio et musicales

Porabniška avdio/video oprema - Digitalni vmesnik - 6. del: Prenos zvokovnih in glasbenih podatkov (IEC 61883-6:2005)

General Information

• Status: Withdrawn
• Publication Date: 23-Nov-2005
• Withdrawal Date: 31-Oct-2008
• ICS: 33.160.01 - Audio, video and audiovisual systems in general
• ICS: 35.200 - Interface and interconnection equipment
• Technical Committee: CLC/TC 100X - Audio, video and multimedia systems and equipment and related sub-systems
• Drafting Committee: IEC/TC 100 - IEC_TC_100
• Parallel Committee: IEC/TC 100 - IEC_TC_100
• Current Stage: 9960 - Withdrawal effective - Withdrawal
• Start Date: 08-Oct-2017
• Completion Date: 08-Oct-2017
• Ref Project: SIST EN 61883-6:2007 - Consumer audio/video equipment - Digital interface -- Part 6: Audio and music data transmission protocol

Relations

• Replaces: EN 61883-6:2002 - Consumer audio/video equipment - Digital interface - Part 6: Audio and music data transmission protocol
• Effective Date: 28-Jan-2023
• Replaced By: EN 61883-6:2014 - Consumer audio/video equipment - Digital interface - Part 6: Audio and music data transmission protocol
• Effective Date: 28-Jan-2023

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EUROPEAN STANDARD EN 61883-6
NORME EUROPÉENNE
EUROPÄISCHE NORM November 2005

ICS 33.160.01; 35.200 Supersedes EN 61883-6:2002

English version
Consumer audio/video equipment -
Digital interface
Part 6: Audio and music data transmission
(IEC 61883-6:2005)
Matériel audio/video grand public - Audio-Video-Geräte der
Interface numérique Unterhaltungselektronik -
Partie 6: Transmission de données Digitale Schnittstelle
audio et musicales Teil 6: Übertragungsprotokoll
(CEI 61883-6:2005) für Ton- und Musikdaten
(IEC 61883-6:2005)
This European Standard was approved by CENELEC on 2005-11-01. CENELEC members are bound to
comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the Central Secretariat or to any CENELEC member.

This European Standard exists in two official versions (English, German). A version in any other language
made by translation under the responsibility of a CENELEC member into its own language and notified to the
Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden,
Switzerland and United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Central Secretariat: rue de Stassart 35, B - 1050 Brussels

© 2005 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.

Ref. No. EN 61883-6:2005 E
Foreword
The text of document 100/1001/FDIS, future edition 2 of IEC 61883-6, prepared by technical area 4,
Digital system interfaces and protocols, of IEC TC 100, Audio, video and multimedia systems and
equipment, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as
EN 61883-6 on 2005-11-01.
This European Standard supersedes EN 61883-6:2002.
It contains the following significant technical changes with respect to EN 61883-6:2002:
a) It extends the AM824 data format transmission and specifies more details in order to reduce the
ambiguities of the first edition.
b) It introduces new Clauses 4, 10, 11 and 12 as well as Annex D and, in 8.2, specifies new data
types for SMPTE time code, sample count, high-precision multi-bit linear audio and ancillary data.
c) It changes the terminology “raw audio data” to “multi-bit linear audio (MBLA)”.
d) It defines, in Clause 11, sequence multiplexing and MIDI data required to the AM824 adaptation
process.
e) It describes, in Clause 12, application-specific data transmission such as DVD-audio and SACD.
f) It specifies, in Subclause 12.1.1.8, the N-flag that indicates command-based rate control and
defines new sampling frequency code (SFC) definition and interpretation.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2006-08-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2008-11-01
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 61883-6:2005 was approved by CENELEC as a European
Standard without any modification.
__________
- 3 - EN 61883-6:2005
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
NOTE Where an international publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
Publication Year Title EN/HD Year
IEC 60958 Series Digital audio interface EN 60958 Series

IEC 61883-1 2003 Consumer audio/video equipment - Digital EN 61883-1 2003
interface
Part 1: General
IEC 61883-6 2002 Part 6: Audio and music data EN 61883-6 2002
transmission
IEEE 754 1985 Binary Floating-Point Arithmetic (R1990) - -

IEEE 1394 2003 IEEE standard for a high performance - -
serial bus peer-to-peer data transport
protocol (PPDT)
INTERNATIONAL IEC
STANDARD 61883-6
Second edition
2005-10
Consumer audio/video equipment –
Digital interface –
Part 6:
Audio and music data transmission protocol

 IEC 2005  Copyright - all rights reserved
No part of this publication may be reproduced or utilized in any form or by any means, electronic or
mechanical, including photocopying and microfilm, without permission in writing from the publisher.
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: [phone] Telefax: [phone] E-mail: [e-mail] Web: www.iec.ch
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For price, see current catalogue

– 2 – 61883-6  IEC:2005(E)
CONTENTS
FOREWORD.6

1 Scope.8
2 Normative references .8
3 Terms and definitions .8
4 Reference model for data transmission.10
4.1 Application layer.11
4.2 Adaptation layer .11
4.3 Packetization layer .12
5 Transport requirements .13
5.1 Arbitrated short bus reset .13
5.2 Bit, byte, and quadlet ordering.13
6 Packet header for audio and music data .13
6.1 Isochronous packet header format.13
6.2 CIP header format .13
7 Packetization.14
7.1 Packet transmission method.14
7.2 Transmission of timing information .14
7.3 Time stamp processing.15
7.4 Transmission control .16
8 Event types .17
8.1 General .17
8.2 AM824 data.20
8.3 32-bit floating-point data.28
8.4 24-bit * 4 audio pack .28
8.5 32-bit generic data .29
9 FDF definition.29
9.1 Introduction .29
9.2 Basic format .30
9.3 Special format .31
10 FDF definition for AM824 data .32
10.1 Definition of N-flag .32
10.2 Supplementary SFC definition .32
10.3 Clock-based rate control mode (FDF = 0000 0xxx ) .33
10.4 Command-based rate control mode (FDF = 00001xxx ) .34
11 AM824 adaptation process .35
11.1 Introduction .35
11.2 Basic sequence conversion .35
11.3 Sequence multiplexing .35
11.4 Compound data block structure .36
12 AM824 sequence adaptation layers .40
12.1 General .40
12.2 DVD-Audio .56
12.3 SACD definition.59

61883-6  IEC:2005(E) – 3 –
Annex A (informative) Blocking transmission method .64
Annex B (informative) Synchronization issues.66
Annex C (informative) Catching up in non-blocking transmission method .68
Annex D (informative) Transport characteristics.69

Bibliography.77

Figure 1 – Reference model for audio and music data transmission .10
Figure 2 – Reference model for AM824 data transmission .11
Figure 3 – Implementation example of receiver .12
Figure 4 – Isochronous packet header .13
Figure 5 – Common isochronous packet (CIP) format .14
Figure 6 – Non-blocking transmission method.16
Figure 7 – Transmission parameters .17
Figure 8 – Cluster events.18
Figure 9 – Pack and cluster events .19
Figure 10 – Pack event with 24-bit event sequence.19
Figure 11 – Generic AM824 format .20
Figure 12 – AM824 data with SUB LABEL.20
Figure 13 – AM824 LABEL allocation map (informative).21
Figure 14 – IEC 60958-conformant data format.22
Figure 15 – MBLA data .22
Figure 16 – Raw audio data .23
Figure 17 – Alignment of 20-bit data in 24-bit field .23
Figure 18 – MIDI conformant data format .24
Figure 19 – No-data format .24
Figure 20 – High-precision multi-bit linear audio data.25
Figure 21 – Generic high-precision quadlet sequence .25
Figure 22 – Generic ancillary data .
...