Consumer audio/video equipment - Digital interface - Part 5: SDL-DVCR data transmission

IEC 61883-5:2004 specifies the packet format and the transmission timing for SDL-DVCR data. It describes the specifications for the IEEE 1394 packet, the CIP header for SDL525-60 and SDL625-50 systems, and the transmission timing.

Matériel audio/vidéo grand public - Interface numérique - Partie 5: Transmission de données SDL-DVCR

L'IEC 61883-5:2004 spécifie la structure en paquets et la durée de transmission pour les données SDL-DVCR. Elle décrit les spécifications pour le paquet IEEE 1394, l'en-tête CIP pour les systèmes SDL525-60 et SDL625-50 et la durée de transmission. Cette deuxième édition de la CEI 61883-5 annule et remplace la première édition parue en 1998. Elle inclut les modifications suivantes: Ajout de spécifications pour le paquet IEEE 1394, l'en-tête CIP et la durée de transmission dans la transmission à grande vitesse. La présente version bilingue (2014-04) correspond à la version anglaise monolingue publiée en 2004-08.

General Information

Status
Published
Publication Date
26-Aug-2004
Current Stage
PPUB - Publication issued
Completion Date
27-Aug-2004
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IEC 61883-5
Edition 2.0 2004-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Consumer audio/video equipment – Digital interface –
Part 5: SDL-DVCR data transmission
Matériel audio/vidéo grand public – Interface numérique –
Partie 5: Transmission de données SDL-DVCR
IEC 61883-5:2004-08(en-fr)
---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
IEC 61883-5
Edition 2.0 2004-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Consumer audio/video equipment – Digital interface –
Part 5: SDL-DVCR data transmission
Matériel audio/vidéo grand public – Interface numérique –
Partie 5: Transmission de données SDL-DVCR
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX K
ICS 33.160.01; 35.200 ISBN 978-2-8322-1360-5

Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 3 ----------------------
– 2 – IEC 61883-5:2004 © IEC 2004
INTERNATIONAL ELECTROTECHNICAL COMMISSION
___________
CONSUMER AUDIO/VIDEO EQUIPMENT –
DIGITAL INTERFACE –
Part 5: SDL-DVCR data transmission
FOREWORD

1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising

all national electrotechnical committees (IEC National Committees). The object of IEC is to promote

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indispensable for the correct application of this publication.

9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of

patent rights. IEC shall not be held responsible for identifying any or all such patent rights.

International Standard IEC 61883-5 has been prepared by technical area 4: Digital system

interfaces and protocols, of IEC technical committee 100: Audio, video and multimedia

systems and equipment.

This second edition of IEC 61883-5 cancels and replaces the first edition published in 1998.

This edition contains the following significant technical changes with respect to the previous

edition:

Added specifications of IEEE 1394 packet, CIP header and transmission timing in high speed

transmission.

This bilingual version (2014-04) corresponds to the monolingual English version, published in

2004-08.
---------------------- Page: 4 ----------------------
IEC 61883-5:2004 © IEC 2004 – 3 –
The text of this standard is based on the following documents:
CDV Report on voting
100/730/CDV 100/819/RVC

Full information on the voting for the approval of this standard can be found in the report on

voting indicated in the above table.
The French version of this standard has not been voted upon.

This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.

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 ITU-R BO.1294 System B

The committee has decided that the contents of this publication will remain unchanged until

the maintenance result date indicated on the IEC web site under "http://webstore.iec.ch" in

the data related to the specific publication. At this date, the publication will be

• reconfirmed;
• withdrawn;
• replaced by a revised edition, or
• amended.
---------------------- Page: 5 ----------------------
– 4 – IEC 61883-5:2004 © IEC 2004
CONSUMER AUDIO/VIDEO EQUIPMENT –
DIGITAL INTERFACE –
Part 5: SDL-DVCR data transmission
1 Scope

This part of IEC 61883 specifies the packet format and the transmission timing for SDL-DVCR

data. It describes the specifications for the IEEE 1394 packet, the CIP header for SDL525-60

and SDL625-50 systems, and the transmission timing.
2 Normative references

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.

IEC 61834-6, Recording – Helical-scan digital video cassette recording system using 6,35 mm

magnetic tape for consumer use (525-60, 625-50, 1125-60 and 1250-50 systems) – Part 6:

SDL format

IEC 61883-1, Consumer audio/video equipment – Digital interface – Part 1: General

IEC 61883-2, Consumer audio/video equipment – Digital interface – Part 2: SD-DVCR data

transmission
3 Abbreviations
For the purposes of this document, the following abbreviations apply:
IEEE 1394 packet: IEEE 1394 isochronous packet defined in IEC 61883-1

SDL525-60 system: the standard definition for high-compression mode 525-line system

with a frame frequency of 29,97 Hz

SDL625-50 system: the standard definition for high-compression mode 625-line system

with a frame frequency of 25,00 Hz
SDL-DVCR: the standard definition for high-compression mode digital video
cassette recorder
4 Construction of IEEE 1394 packet
4.1 Source packet structure of the SDL-DVCR data stream

For the SDL-DVCR data stream, the data structure for the digital interface defined in

IEC 61834-6, Clause 10 is used. The source packet size for the SDL-DVCR data stream is

240 bytes, divided into 3 DIF blocks.

The correspondence between DIF blocks and source packets for the SDL525-60 system and

the SDL625-50 system are shown in Figure 1 and Figure 2 respectively.
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IEC 61883-5:2004 © IEC 2004 – 5 –
4.2 Packetization of source packet of the SDL-DVCR data stream
A source packet shall not be divided and shall be equal to a data block.

Data blocks transmitted in an IEEE 1394 isochronous cycle shall be determined according to

the TR value in the CIP header (see 5.2). An empty packet is placed in any cycle with no data

block.
Where the TR value is
00 (1x), one or no data block is transmitted;
01 (2x), two or no data block are transmitted;
10 (4x), four or no data block are transmitted.

The SYT field of the CIP header (see 5.1) is used to synchronize transmitter and receiver.

4.3 Transmission order of video frames for high-speed transmission

The transmission order of data within one video frame is defined in Figure 1 and Figure 2.

For high-speed transmission, transmission order of each video frame data shall follow the

time sequence.
5 CIP header
5.1 CIP header for SDL-DVCR data stream

The structure of the CIP header for the SDL-DVCR data stream is the same as the structure

of the CIP header for the SD-DVCR data stream (see IEC 61883-2, 5.1).

The DBS for SDL takes different values from that for SD through the difference of data block size

as given in 4.1.
5.2 FDF area
The STYPE takes different values as shown in Table 1 of IEC 61883-2.
Where the STYPE is 00001 , TR is defined as follows.
= 2x
TR: 01
10 = 4x
= Reserved for future definition
11
5.3 DBC values
Increments of DBC value shall be determined according to the TR value.
Where the TR value is
(1x), the DBC value increments with 1;
01 (2x), the DBC value is a multiple of 2;
(4x), the DBC value is a multiple of 4.
---------------------- Page: 7 ----------------------
– 6 – IEC 61883-5:2004 © IEC 2004
5.4 CIP header for the SDL525-60 system

For the SDL525-60 system, the values of the CIP header components are as follows.

DBS: 00111100
FN: 00
QPC: 000
SPH: 0
DBC (see 5.3)
FMT: 000000
50/60: 0
STYPE: 00001
TR: 00 = 1x, 01 = 2x, 10 = 4x
2 2 2
5.5 CIP header for the SDL625-50 system

For the SDL625-50 system, the values of the CIP header components are as follows.

DBS: 00111100
FN: 00
QPC: 000
SPH: 0
DBC (see 5.3)
FMT: 000000
50/60: 1
STYPE: 00001
TR: 00 = 1x, 01 = 2x, 10 = 4x
2 2 2
5.6 Transmission timing

The transmitter shall transmit a time stamp value in the SYT field once every video frame

period. The time stamp should be transmitted in a packet that meets the following conditions:

− packet_arrival_time_L ≤ time stamp value
− time stamp value – transmission_delay_limit ≤ packet_arrival_time_F
where

packet_arrival_time_F is the cycle time when the first bit of the packet which has the time

stamp has arrived at the receiver;

packet_arrival_time_L is the cycle time when the last bit of the packet which has the time

stamp has arrived at the receiver;
transmission_delay_limit = 450 µs.

In case of Hx (H = 1,2,4) transmission, KH data blocks are transmitted in a video frame period

M using K isochronous packets. Isochronous packet n contains H data blocks of nH, nH+1, ...

and (n+1) H–1.
---------------------- Page: 8 ----------------------
IEC 61883-5:2004 © IEC 2004 – 7 –

The isochronous packet n of a video frame period M should be transmitted on the following

conditions (n = 0, ... , K–1):
− packet_arrival_time_L ≤ nominal timing for isochronous packet n
− nominal timing for isochronous packet n – transmission_delay_limit ≤
packet_arrival_time_F
where

packet_arrival_time_F is the cycle time when the first bit of the isochronous packet n has

arrived at the receiver;

packet_arrival_time_L is the cycle time when the last bit of the isochronous packet n has

arrived at the receiver;

K is the number of isochronous packets without empty packets in a video frame period.

K = 250 (SDL525-60 system)
K = 300 (SDL625-50 system)
Nominal timing for isochronous packet n = T + (T – T ) × n/K.
M M+1 M
T is the time stamp for video frame period
...

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