ARINC 615A-2 : 1999

1.0 INTRODUCTION
      1.1 Purpose
      1.2 Applicability
      1.3 Document Conventions
      1.4 File Format Evolution
             1.4.1 File Format Version Definition
             1.4.2 File Expansion Points
             1.4.3 Support Tools & Loaders
2.0 LOADABLE SOFTWARE PARTS
      2.1 Software Load Part Number
             2.1.1 Software Load Part Number Format
             2.1.2 MMM Assignment
             2.1.3 Check Characters in the Software Part
                      Number
      2.2 Software Load Content and Format
             2.2.1 Software Load Structure
             2.2.2 Software Load File Naming
                      2.2.2.1 Header File Name Extension
                      2.2.2.2 Data File Name Extensions
                      2.2.2.3 Support File Name
                                 Extensions
             2.2.3 File Content and Format
                      2.2.3.1 Header File Content and
                                 Format
                      2.2.3.2 Data File Content and Format
                      2.2.3.3 Support File Content and
                                 Format
             2.2.4 Data and Support File Options
                      2.2.4.1 File Compression
                      2.2.4.2 File Encryption
3.0 LOADABLE SOFTWARE TRANSPORT MEDIA
      3.1 Transport Media Part Number Assignment
      3.2 Transport Media Set Format, Content, and
             Organization
             3.2.1 Transport Media Content and Structure
             3.2.2 File Name Extensions
             3.2.3 File Content and Organization
                      3.2.3.1 List-of-Loads File Content
                                 and Organization
                      3.2.3.2 List-of-Files file Content
                                 and Format
      3.3 Media Set Labeling
             3.3.1 Label Content
             3.3.2 Label Format
      3.4 Media Type Specific Items
             3.4.1 Diskette Sets
             3.4.2 PC-Card
             3.4.3 CD-Rom
             3.4.4 Hard Disk
4.0 CYCLIC REDUNDANCY CODES (CRC)
      4.1 Computing CRCs
             4.2.1 8 Bit CRC
             4.2.2 16 Bit CRC
             4.2.3 32 Bit CRC
      4.3 Specific CRC Calculations
             4.3.1 Part Number CC Characters
             4.3.2 File CRCs
                      4.3.2.1 Data File CRC
                      4.3.2.2 Support File CRC
                      4.3.2.3 Header File CRC
                      4.3.2.4 LOADS.LUM File CRC
                      4.3.2.5 FILES.LUM File CRC
             4.3.3 Load CRC
             4.3.4 Media CRC
                      4.3.4.1 Pathname List File
         4.3.5 Filename CCCC Characters
APPENDIX A - LOAD STRUCTURE
APPENDIX B - MEDIA SET STRUCTURE
APPENDIX C - FILE FORMATS
APPENDIX D - EXAMPLES
APPENDIX E - MANUAL METHOD FOR CALCULATING THE "CC" VALUE
APPENDIX F - IMPLEMENTATION FOR MULTI-STANDARD COMPATIBILITY
APPENDIX G - ACRONYMS AND ABBREVIATIONS
APPENDIX H - LOADABLE SOFTWARE TERMINOLOGY

Covers the aircraft industry's standards for software transport media and loadable software parts. Also gives the common rules and principles to be applied to any part of data load system, insuring and inter-operatibility and compatibility. This standard includes content, labeling, part numbering and formatting of loadable software parts and software transport media.