B-4
Disk/Tape Controller Data
B
BIOT Command Parameters for Supported
Floppy TypesThe 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 =
DDDD DDD
Single/Double TRACK
Density =
DDDD DDD
Single/Equal_in_all Track
Zero Density =
SEEEEEE
Slow/Fast Data Rate = S S S S F F F
Other Characteristics
Number of Physical Sectors 0A00 0280 02D0 05A0 0960 0B40 1680