ECMA 99 : 1ED 85
Current
The latest, up-to-date edition.
DATA INTERCHANGE ON 130 MM FLEXIBLE DISK CARTRIDGES USING MFM RECORDING AT 13262 FTPRAD ON BOTH SIDES 3,8 TRACKS PER MM
01-12-2013
SECTION I - GENERAL DESCRIPTION AND DEFINITIONS
SCOPE AND CONFORMANCE
1 GENERAL DESCRIPTION
1.1 General Figures
1.2 Main Elements
1.3 Description
1.4 Optional Features
1.5 Definitions
SECTION II - MECHANICAL AND PHYSICAL CHARACTERISTICS
2 GENERAL REQUIREMENTS
2.1 Environment and Transportation
2.2 Materials
3 DIMENSIONAL CHARACTERISTICS
3.1 Jacket
3.2 Liner
3.3 Disk
4 PHYSICAL CHARACTERISTICS
4.1 Inflammability
4.2 Coefficient of Linear Thermal Expansion of the disk
4.3 Coefficient of Linear Hygroscopic Expansion of the Disk
4.4 Opacity
4.5 Torque
SECTION III - MAGNETIC CHARACTERISTICS OF THE UNRECORDED FLEXIBLE
DISK CARTRIDGE
5 MAGNETIC CHARACTERISTICS
5.1 Track Geometry
5.2 Functional Testing
SECTION IV - TRACK FORMAT No. 1
6 TRACT FORMAT No.1
6.1 General Requirements
6.2 Description of Track Layout after First Formatting for
Track 00, Side 0
6.3 Track Layout after the first Formatting for all for all
Tracks other than Track 00, Side 0
6.4 Track Layout of a Recorded Flexible Disk Data Interchange
6.4 Track Layout of a Recorded Flexible Disk Data Interchange
SECTION V - TRACK FORMAT No. 2
7 GENERAL REQUIREMENTS
7.1 Mode of Recording
7.2 Track Location Tolerance of the Recorded Flexible Disk
Cartridge
7.3 Recording Offset Angle
7.4 Density of Recording
7.5 Flux Transition Spacing
7.6 Average Signal Amplitude
7.7 Byte
7.8 Sector
7.9 Cylinder
7.10 Cylinder Number
7.11 Data Capacity of a Track
7.12 Hexadecimal Notation
7.13 Error Detection Characters (EDC)
8 TRACK LAYOUT
8.1 Index Gap
8.2 Sector Identifier
8.3 Identifier Gap
8.4 Data Block
8.5 Data Block Gap
8.6 Track Gap
9 CODED REPRESENTATION OF DATA
9.1 Standards
9.2 Coding Methods
APPENDIX A - MEASUREMENT OF THE CARTRIDGE THICKNESS
APPENDIX B - MEASUREMENT OF LIGHT TRANSMITTANCE
APPENDIX C - METHOD FOR MEASURING THE EFFECTIVE TRACK WIDTH
APPENDIX D - PROCEDURE AND EQUIPMENT FOR MEASURING FLUX
TRANSITION SPACING
APPENDIX E - DATA SEPARATION FOR DECODING MFM RECORDING
APPENDIX F - EDC IMPLEMENTATION
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