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C141-E056-01EN4 - 14
Table 4.3 Write clock frequency and transfer rate of each zone
Zone 0 1 2 3 4 5 6 7
Cylinder 0
to
760
761
to
1520
1521
to
2280
2281
to
3040
3041
to
3800
3801
to
4530
4531
to
5165
5166
to
5790
Transfer rate
[MB/s]
19.18 19.18 19.18 19.18 19.18 19.18 18.54 17.91
Zone 8 9 10 11 12 13 14
Cylinder 5791
to
6775
6776
to
7105
7106
to
7815
7816
to
8495
8496
to
9045
9046
to
9590
9591
to
10423
Transfer rate
[MB/s]
16.86 16.51 15.73 14.96 14.33 13.70 12.65
The MPU transfers the data transfer rate setup data (SDATA/SCLK) to the RDC that includes
the time base generator circuit to change the data transfer rate.
4.7 Servo Control
The actuator motor and the spindle motor are submitted to servo control. The actuator motor
is controlled for moving and positioning the head to the track containing the desired data. To
turn the disk at a constant velocity, the actuator motor is controlled according to the servo data
that is written on the data side beforehand.