OEM MANUAL:K6602771
6 COMMAND DESCRIPTIONS
Revision: 2 / Date: 2002.12.19
Page: 203 / 313
The Block Descriptor Length field specifies the length in bytes of the block descriptor.
Since there is only one block descriptor, this field must always be set to 08
H
.
The block descriptor contains the number of blocks and the block length and
indicates the accessible area from the host for a logical unit.
The Number of Blocks field specifies the number of logical blocks on the medium that
corresponds to the block length in the block descriptor.
Note : The host computer can obtain the number of logical blocks by adding 1 to
the maximum logical block address that is returned with the READ
CAPACITY command (see 6.14).
The Block Length field specifies the length in bytes of the logical blocks on the
medium.
Please refer to “Product Specifications” for the information of the eligible logical
length values.
The page descriptors specify the page data requested by the host computer. For
details on the pages, see the page definitions given in the MODE SELECT command
description (see 6.5).
The PS (Parameter Savable) bit of 0 indicates that the controller cannot save the
specified page. This bit of 1 indicates that the controller can save the specified page.
Each page descriptor lists the default and changeable values that the SCSI controller
returns to the host computer. The default value XX
H
indicates the case of the
different values (e.g. number of heads) at each product.
MODE SENSE:(1Ah)