TABLE 29 - TYPICAL VALUES FOR FORMATTING
FORMAT SECTOR SIZE
N
SC
GPL1
GPL2
128
00
12
07
09
128
00
10
10
19
512
02
08
18
30
FM
1024
03
04
46
87
2048
04
02
C8
FF
5.25"
Drives
4096
...
05
01
C8
FF
...
256
01
12
0A
0C
256
01
10
20
32
512*
02
09
2A
50
MFM
1024
03
04
80
F0
2048
04
02
C8
FF
4096
05
01
C8
FF
...
...
128
0
0F
07
1B
3.5"
FM
256
1
09
0F
2A
Drives
512
2
05
1B
3A
256
1
0F
0E
36
MFM
512**
2
09
1B
54
1024
3
05
35
74
GPL1 = suggested GPL values in Read and Write commands to avoid splice point
between data field and ID field of contiguous sections.
GPL2 = suggested GPL value in Format A Track command.
*PC/AT values (typical)
**PS/2 values (typical). Applies with 1.0 MB and 2.0 MB drives.
NOTE: All values except sector size are in hex.
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