C141-E039-01EN
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Format Parameter (Page Code = 3)
The Page descriptor format of this MODE SELECT parameter is shown in Fig. 3.10.
Bit
Byte
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
1
1
1
X‘16’ (Page Length)
2-3
Alternate Track Count/Zone
Default
X‘000x’
Variable
X‘0000’
4-5
Alternate Sector Count/Zone
Default
X‘0014’
Variable
X‘FFFF’
6-7
Alternate Track Count/Drive
Default
X‘0000’
Variable
X‘0000’
8-9
Alternate Track Count/Drive
Default
X‘000x’
Variable
X‘FFFF’
10-11
Sector Count/Track
Default
X‘00xx’
Variable
X‘0000’
12-13
Data Byte Length/Physical Sector
Default
X‘xxxx’
Variable
X‘FFFF’
14-15
Interleave Factor
Default
X‘0001’
Variable
X‘0000’
16-17
Track Skew Factor
Default
X‘00xx’
Variable
X‘0000’
18-19
Cylinder Skew Factor
Default
X‘00xx’
Variable
X‘0000’
20
SSEC
HSEC
RMB
SURF
0
0
0
0
Default
0
1
0
0
0
0
0
0
Variable
0
0
0
0
0
0
0
0
21-23
X‘000000’ (Reserved)
Figure 3.10 MODE SELECT Parameters: Format Parameter
(= 20 Sectors)
(= 1 Cylinder)
(= 1 Sectors)