IBM 5280 Maintenance Information Manual page 81

15 Sectors Per Track
When this field contains:
Blank 01 02 03
04
The sequencing will be:
1 1
1
1 1
2 2 3 4 5
3 3 5
7
9
4 4
7
10 13
5 5 9 13 2
6 6 11 2
6
7 7
13 5 10
8
8
15
8
14
9 9 2 11 3
10 10
4
14
7
11 11 6 3 11
12
12 8 6 15
13 13 10 9 4
14 14
12
12 8
15
15
14 15 12
8 Sectors Per Track
When this field contains:
Blank 01 02 03 04
The sequencing will be:
1 1 1 1 1
2 2
3 4 5
3
·3
5 7 2
4 4
7 2
6
5 5 2 5 3
6 6
4
8 7
7 7
6 3 4
8 8
8 6 8
Label Standard Version (byte 79): Indicates what kind of
labels are on the diskette. A blank indicates other than
IBM standard labels. A W indicates that IBM standard
labels are on the diskette.
Pad (bytes 80 through 127):
Indicates the end of the
volume label. The pad extends to the end of the sector.
05
1
6
11
2
7
12
3
8
13
4
9
14
5
10
15
06 07
1
1
7 8
13 15
4
7
10 14
2
6
8
13
14 5
5 12
11 4
3
11
9 3
15 10
6
2
12
9
Theory 69