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00] is reported for that command. Therefore, if the number of cylinders configured in
the "User Space" is clearly specified in this parameter, it is necessary for the INIT to
specify zero in the "Data block count" parameter in the block descriptor or transfer
this page descriptor without specifying the block descriptor.
b. Number of heads
This parameter indicates the number of data Read/Write heads in the disk drive. It is
impossible to change this parameter. If zero or a value which differs from the "Default"
value is specified in this parameter field, the IDD performs rounding processing of the
parameter, setting a value which is the same as the default value in it.
c. Bytes 6 to 16
The parameter defined in bytes 6 to 16 of this page descriptor is a parameter that it is
clearly not necessary for the INIT to specify. The IDD disregards the values specified in
this field.
d. RPL (rotational position locking)
These bits are used for rotational synchronization of the disk and can be specified. The
IDD disregards the value specified in this field.
e. Rotational synchronization offset (not supported)
This is a field which specifies the offset value used for rotational synchronization of the
disk, but it is not supported in the IDD. The IDD disregards the value specified in this
field.
f. Rotational speed
This specifies the disk's rotational speed in rpm (rotations/minute). This parameter cannot
be changed by the INIT. The IDD disregards the value specified in this field.
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C141-E054-02EN
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