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(4) Drive parameters (page code = 4)
The page descriptor format of this MODE SELECT parameter is shown in Table
4.19.
Table 4.19 MODE SELECT parameters: drive parameters
Bit
7
Byte
0
0
1
2-4
Default
Variable
5
Default
Variable
6-8
Default
Variable
9-11
Default
Variable
12-13
Default
Variable
14-16
Default
Variable
17
0
Default
0
Variable
0
18
Default
Variable
19
20-21
Default
Variable
22-23
C141-C009
6
5
4
0
0
0
X'16' (Page Length)
Cylinder Count
X'xxxxxx'
X'000000'
Number of Heads
X'xx'
X'00'
"Write Precompensation" Starting Cylinder
X'000000'
X'000000'
"Reduced Write Current" Starting Cylinder
X'000000'
X'000000'
Drive Step Rate
X'0000'
X'0000'
Landing Zone Cylinder
X'000000'
X'000000'
0
0
0
0
0
0
0
0
0
Rotational Synchronization Offset
X'00'
X'00'
X'00' (Reserved)
Rotational Speed
X'2729' (10,025 rpm)
or
X'3A98' (15,000 rpm)
X'0000'
X'0000' (Reserved)
4.1 Control/Sense Commands
3
2
1
0
1
0
0
0
RPL
0
0
0
0
0
0
0
0
0
0
4-41
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