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IOT Command Parameters for Supported
Floppy Types
The following table lists the proper IOT command parameters for
floppies used with boards such as the:
IOT Parameter
Sector Size
0- 128 1- 256 2- 512
3-1024 4-2048 5-4096
Block Size:
0- 128 1- 256 2- 512
3-1024 4-2048 5-4096
Sectors/Track
Number of Heads
Number of
Cylinders
Precomp. Cylinder
Reduced Write
Current Cylinder
Step Rate Code
Single/Double
DATA Density
Single/Double
TRACK Density
Single/Equal_in_all
Track Zero Density
Slow/Fast Data Rate
IOT Command Parameters for Supported Floppy Types
MVME328
MVME167
MVME177
MVME187
Floppy Types and Formats
DSDD5
PCXT8
PCXT9 PCXT9_3 PCAT
1
2
1
1
10
8
2
2
50
28
50
28
50
28
0
0
D
D
D
D
S
E
S
S
2
2
2
1
1
1
9
9
F
2
2
2
28
50
50
28
50
50
28
50
50
0
0
0
D
D
D
D
D
D
E
E
E
S
S
F
PS2
SHD
2
2
1
1
12
24
2
2
50
50
50
50
50
50
0
0
D
D
D
D
E
E
F
F
C-5
C
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