IEC 62516-3-2013 Terrestrial digital multimedia broadcasting (T-DMB) receivers - Part 3 Common API《地面数字多媒体广播(T-DMB)接收器.第3部分 通用应用程序接口(API)》.pdf

1、 IEC 62516-3 Edition 1.0 2013-03 INTERNATIONAL STANDARD NORME INTERNATIONALE Terrestrial digital multimedia broadcasting (T-DMB) receivers Part 3: Common API Rcepteurs pour diffusion multimdia numrique terrestre (T-DMB) Partie 3: API commune IEC62516-3:2013 colourinsideTHIS PUBLICATION IS COPYRIGHT

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16、l digital multimedia broadcasting (T-DMB) receivers Part 3: Common API Rcepteurs pour diffusion multimdia numrique terrestre (T-DMB) Partie 3: API commune INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE U ICS 33.160.25; 33.170 PRICE CODE CODE PRIX ISBN 978-2-8322

17、0-685-0 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale Warning! Make sure that you obtained this publication from an authorized distributor. Attention! Veuillez vous assurer que vous avez obtenu cette publication vi

18、a un distributeur agr. colourinside 2 62516-3 IEC:2013 CONTENTS FOREWORD . 3 1 Scope . 5 2 Normative references . 5 3 Abbreviations . 5 4 T-DMB common API overview 6 4.1 T-DMB receiver overview 6 4.2 T-DMB receiver ASIC block . 6 4.3 Host processor block . 6 4.3.1 General . 6 4.3.2 T-DMB driver (har

19、dware abstraction layer) sub-block . 7 4.3.3 T-DMB ASIC specific software sub-block . 7 4.3.4 T-DMB common APIs sub-block 7 4.3.5 T-DMB receiver middleware sub-block . 7 4.4 Hardware interface block . 8 5 API description . 8 5.1 T-DMB common APIs 8 5.2 Command types 9 5.2.1 General . 9 5.2.2 Get rec

20、eiver capability . 9 5.2.3 Tuning . 10 5.2.4 Searching 11 5.2.5 Scanning . 14 5.2.6 Selecting a T-DMB service 16 5.2.7 Selecting a slideshow or a dynamic label service . 18 5.2.8 Selecting a broadcast website service . 19 5.2.9 Get T-DMB service information 21 5.2.10 Monitoring reception qualities 2

21、2 Annex A (informative) Examples of the classes used in T-DMB APIs . 25 Bibliography 28 Figure 1 Block diagram of a typical T-DMB receiver . 6 Figure 2 Three different command patterns 8 Figure 3 Get receiver capability . 10 Figure 4 Tuning 10 Figure 5 Searching. 12 Figure 6 Scanning 14 Figure 7 Sel

22、ecting a T-DMB service 17 Figure 8 Selecting a slideshow or a dynamic label service 18 Figure 9 Selecting a broadcast website service 19 Figure 10 Get T-DMB service information 21 Figure 11 Monitoring reception qualities . 23 62516-3 IEC:2013 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ TERRESTRIAL

23、 DIGITAL MULTIMEDIA BROADCASTING (T-DMB) RECEIVERS Part 3: Common API 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 interna

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30、mity. Independent certification bodies provide conformity assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any services carried out by independent certification bodies. 6) All users should ensure that they have the latest edition of this publicati

31、on. 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and members of its technical committees and IEC National Committees for any personal injury, property damage or other damage of any nature whatsoever, whether direct or indirect, or f

32、or costs (including legal fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications. 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable for the correct

33、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 62516-3 has been prepared by te

34、chnical area 1: Terminals for audio, video and data services and contents, of IEC technical committee 100: Audio, video and multimedia systems and equipment. The text of this standard is based on the following documents: CDV Report on voting 100/2020/CDV 100/2110/RVC Full information on the voting f

35、or 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. A list of all parts in the IEC 62516 series, published under the general title Terrestrial digital multimedia broad

36、casting (T-DMB) receivers, can be found on the IEC website. 4 62516-3 IEC:2013 The committee has decided that the contents of this publication will remain unchanged until the stability date indicated on the IEC web site under “http:/webstore.iec.ch“ in the data related to the specific publication. A

37、t this date, the publication will be reconfirmed, withdrawn, replaced by a revised edition, or amended. IMPORTANT The colour inside logo on the cover page of this publication indicates that it contains colours which are considered to be useful for the correct understanding of its contents. Users sho

38、uld therefore print this document using a colour printer. 62516-3 IEC:2013 5 TERRESTRIAL DIGITAL MULTIMEDIA BROADCASTING (T-DMB) RECEIVERS Part 3: Common API 1 Scope This part of IEC 62516 describes the T-DMB common application program interface (API). It provides a software platform that, when comb

39、ined with the T-DMB O/S, forms a universal interface for application programs. This interface allows application programs to be written in such a way that they run on any T-DMB receiver unit, as described in IEC 62516-1:2009 and IEC 62516-2:2011 regardless of its manufacturer. This part of IEC 62516

40、 also defines a software environment that allows multiple application programs to be interoperable on a single receiver unit by sharing the fixed resources of the receiver, and it provides a set of interfaces that the T-DMB middleware and the ASIC specific software use. 2 Normative references The fo

41、llowing documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 62516-1:2

42、009, Terrestrial digital multimedia broadcasting (T-DMB) receivers Part 1: Basic requirements IEC 62516-2:2011, Terrestrial digital multimedia broadcasting (T-DMB) receivers Part 2: Interactive data services using BIFS ETSI EN 300 401 v1.3.3, Radio Broadcasting Systems; Digital Audio Broadcasting (D

43、AB) to mobile, portable and fixed receivers 3 Abbreviations ADC Analog to Digital Converter API Application Programming Interface ASIC Application Specific Integrated Circuit FIC Fast Information Channel HAL Hardware Abstraction Layer ISR Interrupt Service Routine MAC Media Access Control PAD Progra

44、m Associated Data RF Radio Frequency R-S Reed Solomon SDIO Secure Digital Input/Output SI Service Identifier T-DMB Terrestrial-Digital Multimedia Broadcasting 6 62516-3 IEC:2013 O/S Operating System 4 T-DMB common API overview 4.1 T-DMB receiver overview A T-DMB receiver provides the device function

45、ality specified in the T-DMB receivers (see IEC 62516-1:2009 and IEC 62516-2:2011). Figure 1 shows the block diagram of a typical T-DMB receiver. For the T-DMB receiver depicted in Figure 1, only those blocks that conform to the scope of this standard are shown. Figure 1 also shows the T-DMB common

46、API with respect to the T-DMB receiver block diagram. Figure 1 Block diagram of a typical T-DMB receiver 4.2 T-DMB receiver ASIC block The T-DMB receiver ASIC block represents the semiconductor hardware that provides the functionality of demodulating a T-DMB signal and retrieving data carried by the

47、 T-DMB physical layer. This block provides functionality like RF front-end, ADC, timing and frequency estimation, channel estimation, viterbi decoding, etc. In short this block provides the complete physical layer implementation of ETSI EN 300 401 v1.3.3. Depending upon the implementation, this bloc

48、k can also provide outer decoding functionality (e.g. R-S decoding and/or convolutional de-interleaving). 4.3 Host processor block 4.3.1 General The host processor block represents the T-DMB functionality provided by the host processor in a T-DMB based device. In other words, this represents the hos

49、t processor hardware and the software implementation residing in the host processor. The host processor block retrieves and processes the T-DMB information obtained from the T-DMB receiver ASIC block. The T-DMB information retrieved consists of multiplex configuration information received on fast Host Processor Block T-DMB Receiver ASIC Block T-DMB ASIC Specific Software Sub-block T-DMB Driver (Hardware Abstraction Layer)