IEC 61883-6:2002
(Main)Consumer audio/video equipment - Digital interface - Part 6: Audio and music data transmission protocol
Consumer audio/video equipment - Digital interface - Part 6: Audio and music data transmission protocol
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INTERNATIONAL IEC
STANDARD
61883-6
First edition
2002-10
Consumer audio/video equipment –
Digital interface –
Part 6:
Audio and music data transmission protocol
Matériel audio/vidéo grand public –
Interface numérique –
Partie 6:
Protocole de transmission de données
audio et musicales
Reference number
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INTERNATIONAL IEC
STANDARD
61883-6
First edition
2002-10
Consumer audio/video equipment –
Digital interface –
Part 6:
Audio and music data transmission protocol
Matériel audio/vidéo grand public –
Interface numérique –
Partie 6:
Protocole de transmission de données
audio et musicales
IEC 2002 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: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch Web: www.iec.ch
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U
International Electrotechnical Commission
Международная Электротехническая Комиссия
For price, see current catalogue
– 2 – 61883-6 IEC:2002(E)
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references. 6
3 Terms and definitions . 6
4 Transport requirements. 7
4.1 Arbitrated short bus reset . 7
4.2 Bit, byte, and quadlet ordering . 7
5 Packet header for audio and music data . 7
5.1 Isochronous packet header format . 7
5.2 CIP header format . 8
6 Packetization . 8
6.1 Packet transmission method . 8
6.2 Transmission of timing information. 9
6.3 Time stamp processing. 9
6.4 Transmission control.10
7 Event Types.11
7.1 General .11
7.2 AM824 Data.14
7.3 32-bit floating point data .17
7.4 24-bit x 4 Audio Pack.17
8 Subformat.18
8.1 Basic format .18
8.2 Special Format .20
Annex A (informative) Blocking transmission method .21
Annex B (informative) Synchronization Issues.23
Annex C (informative) Catching up in Non-Blocking Transmission method .25
Bibliography.26
Figure 1 – Isochronous packet header. 7
Figure 2 – Common isochronous packet (CIP) format. 8
Figure 3 – Non-blocking transmission method .10
Figure 4 – Transmission parameters .11
Figure 5 – Cluster events .12
Figure 6 – Pack and cluster events .13
Figure 7 – Pack event with 24-bit event sequence.13
Figure 8 – Generic AM824 format.14
Figure 9 – IEC 60958 conformant data format .15
Figure 10 – Raw audio data format.16
Figure 11 – Alignment of 20-bit data in 24-bit field .16
Figure 12 – MIDI conformant data format .16
Figure 13 – "No Data" format .17
61883-6 IEC:2002(E) – 3 –
Figure 14 – 32-bit floating point data format .17
Figure 15 – 24-bit * 4 audio pack format.18
Figure 16 – Generic FDF definition.19
Figure 17 – FDF code for NO-DATA packet.20
Figure A.1 – Blocking transmission method .21
Table 1 – Isochronous packet header fields . 8
Table 2 – CIP fields. 8
Table 3 – Generic AM824 format.15
Table 4 – IEC 60958 conformant data format .15
Table 5 – Raw audio data format.16
Table 6 – MIDI conformant data format .17
Table 7 – Subformat and FDF allocations.18
Table 8 – DBS for AM824 and 32-bit floating point data .19
Table 9 – DBS for 24-bit x 4 audio pack .19
Table 10 – Event type (EVT) code definition.19
Table 11 – SFC (Nominal Sampling Frequency Code) definition.19
Table A.1 – TRANSFER_DELAY for differing values of STF.22
– 4 – 61883-6 IEC:2002(E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION
___________
CONSUMER AUDIO/VIDEO EQUIPMENT –
DIGITAL INTERFACE –
Part 6: Audio and music data transmission protocol
FOREWORD
1) The IEC (International Electrotechnical Commission) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of the IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, the IEC publishes International Standards. Their preparation is
entrusted to technical committees; any IEC National Committee interested in the subject dealt with may
participate in this preparatory work. International, governmental and non-governmental organizations liaising
with the IEC also participate in this preparation. The IEC collaborates closely with the International
Organization for Standardization (ISO) in accordance with conditions determined by agreement between the
two organizations.
2) The formal decisions or agreements of the IEC on technical matters express, as nearly as possible, an
international consensus of opinion on the relevant subjects since each technical committee has representation
from all interested National Committees.
3) The documents produced have the form of recommendations for international use and are published in the form
of standards, technical specifications, technical reports or guides and they are accepted by the National
Committees in that sense.
4) In order to promote international unification, IEC National Committees undertake to apply IEC International
Standards transparently to the maximum extent possible in their national and regional standards. Any
divergence between the IEC Standard and the corresponding national or regional standard shall be clearly
indicated in the latter.
5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with one of its standards.
6) Attention is drawn to the possibility that some of the elements of this International Standard may be the subject
of patent rights. The IEC shall not be held responsible for identifying any or all such patent rights.
International Standard 61883-6 has been prepared by Technical Area 4: Digital system
interfaces, of IEC technical committee 100: Audio, video and multimedia systems and
equipment.
The text of this standard is based on the following documents:
FDIS Report on voting
100/526/FDIS 100/569/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
This publication replaces IEC/PAS 61883-6:1998
The committee has decided that the contents of this publication will remain unchanged until
31 October 2005. At this date, the publication will be
• reconfirmed;
• withdrawn;
• replaced by a revised edition, or
• amended.
61883-6 IEC:2002(E) – 5 –
IEC 61883 consists of the following parts, under the general title Consumer audio/video
equipment – Digital interface
• Part 1: General
• Part 2: SD-DVCR data transmission
• Part 3: HD-DVCR data transmission
• Part 4: MPEG2-TS data transmission
• Part 5: SDL-DVCR data transmission
• Part 6: Audio and music data transmission protocol
• Part 7: Transmission of Rec. ITU-R BO.1294 System B Transport 1.0
– 6 – 61883-6 IEC:2002(E)
CONSUMER AUDIO/VIDEO EQUIPMENT –
DIGITAL INTERFACE –
Part 6: Audio and music data transmission protocol
1 Scope
This part of IEC 61883 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 which have any kind of audio and/or
music data processing, generation and conversion function blocks. This standard 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.
2 Normativ
...
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