Motorola 700/800-Series User Manual

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B-4
Disk/Tape Controller Data
B
B
IOT Command Parameters for Supported 
Floppy Types
The following table lists the proper IOT command parameters for 
floppies used with boards such as the MVME328 and 
MVME162LX.
IOT Parameter
Floppy Types and Formats
DSDD5
PCXT8
PCXT9
PCXT9_3
PCAT
PS2
SHD
Sector Size
0- 128 1- 256 2- 512
3-1024 4-2048 5-4096 =
1
2
2
2
2
2
2
Block Size:
0- 128 1- 256 2- 512
3-1024 4-2048 5-4096 =
1
1
1
1
1
1
1
Sectors/Track
10
8
9
9
F
12
24
Number of Heads =
2
2
2
2
2
2
2
Number of Cylinders =
50
28
28
50
50
50
50
Precomp. Cylinder =
50
28
28
50
50
50
50
Reduced Write Current 
Cylinder =
50
28
28
50
50
50
50
Step Rate Code =
0
0
0
0
0
0
0
Single/Double DATA 
Density =
D
D
D
D
D
D
D
Single/Double TRACK 
Density =
D
D
D
D
D
D
D
Single/Equal_in_all Track 
Zero Density =
S
E
E
E
E
E
E
Slow/Fast Data Rate =
S
S
S
S
F
F
F
Other Characteristics
Number of Physical Sectors
0A00
0280
02D0
05A0
0960
0B40
1680