Motorola MVME166D2 用户手册
IOT Command Parameters for Supported Floppy Types
MVME166IG/D2
B-5
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, MVME166, and MVME187.
used with boards such as the MVME328, MVME166, and MVME187.
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 =
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 =
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 =
Cylinder =
50
28
28
50
50
50
50
Step Rate Code =
0
0
0
0
0
0
0
Single/Double DATA
Density =
Density =
D
D
D
D
D
D
D
Single/Double TRACK
Density =
Density =
D
D
D
D
D
D
D
Single/Equal_in_all Track
Zero Density =
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
Number of Logical Blocks
(100 in size)
(100 in size)
09F8
0500
05A0
0B40
12C0
1680
2D00
Number of Bytes in Decimal
653312
327680
368460
737280
1228800
1474560
2949120
Media Size/Density
5.25/DD
5.25/DD
5.25/DD
3.5/DD
5.25/HD
3.5/HD
3.5/ED
NOTES:
1. All numerical parameters are in hexadecimal unless otherwise noted.
2. The DSDD5 type floppy is the default setting for the debugger.