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5-92 Maxtor Atlas 10K V
5.18 READ (6) Command (08h)
The READ (6) command requests that data be transferred from the drive to the
initiator. The amount of data transferred is specified by the transfer length field. The
starting point is specified by the logical sector address. The data format and field
descriptions are shown in Table 5-119 and Table 5-120 respectively.
Table 5-119 READ (6) Command-Data Format
Table 5-120 READ (6) Command-Field Descriptions
Bit
Byte
765 4 321 0
0 Operation Code (08h)
1 Reserved Logical Block Address
2 - 3 Logical Block Address (continued)
4 Transfer Length
5Control
Field Description
Logical Block Address
Specifies the logical block address where the read operation
will begin.
Transfer Length
Specifies the number of contiguous logical blocks of data to
transfer. A transfer length of 0 indicates that 256 logical
blocks will be transferred. Any other value indicates the
number of logical blocks that will be transferred.