Maxtor Atlas SCSI Drive 15K II, Product Manual

Page: 106 / 260

SCSI Description
5-40 Maxtor Atlas 15K
5.14.3 Mode Parameter List
Table 5-53 shows the format of the Mode Parameter List that is passed by the initiator
to the drive during the command’s data-out buffer transfer. Table 5-54 describes the
fields. Table 5-55 and Table 5-56 provides a description of the data format and fields
of the Mode Parameter Header. Table 5-57 and Table 5-58 describe the format and
field descriptions for the Mode Parameter Block Descriptor.
Table 5-53
Mode Parameter List-Data Format
Table 5-54
Mode Parameter List-Field Descriptions
Table 5-55
Mode Parameter Header (6-Byte)-Data Format
Table 5-56
Mode Parameter Header- Field Descriptions
Bit
Byte
7 6 5 4 3 2 1 0
0 – 3 Mode Parameter Header
4 – 11
Block Descriptor
(optional)
4 – n
or
12 – n
Page(s)
(optional)
Field Description
Mode Parameter Header
Contains information about the remainder of the pa-
rameter list and is always present (see Table 5-55 and
Table 5-56).
Block Descriptor
Allows the initiator to set the drive’s Logical Block
Size and number of Logical Block Addresses (see Ta-
ble 5-57 and Table 5-58).
Page(s)
The page code(s) of the pages that are a part of this
command.
Bit
Byte
7 6 5 4 3 2 1 0
0 Mode Data Length
1 Medium Type
2 Device-Specific Parameter
3 Block Descriptor Length
Field Description
Mode Data Length Reserved. Must be 0.
Medium Type Ignored by the drive.
Device-specific Parameter Ignored by the drive.
Block Descriptor Length
Zero (0) if no Block Descriptor is supplied. The length
is eight (8) if a Block Descriptor is supplied.