Download Microprocessor Microcode And Save (Mode 00111B) - Multiple Binary Files; Write Data To Echo Buffer (Mode 01010B); Enable Expander Communications Protocol (Mode 11010B) - Hitachi HUS151473VL3800 - Ultrastar 73.4 GB Hard Drive Specifications

17.45.5 Download Microprocessor Microcode and Save (Mode 00111b) - Multiple
Binary Files
In this mode the target receives a segment of the binary microcode file. The Parameter List Length (segment length) of each
segment shall be a multiple of 8K bytes. The total length of all segments received shall be equal to the total length of the binary
microcode file.
If an invalid Parameter List Length is specified, Check Condition status is returned with sense key of Illegal Request and
additional sense code of Invalid Field in CDB.
The first segment sent in this mode indicates, by default, the first segment of the binary microcode file. If a Check Condition
status is returned in this mode, a Buffer ID == 00h in the subsequent Write Buffer command in this mode indicates the first
segment of the binary microcode file. Otherwise the Buffer ID field is ignored.
The Buffer Offset field is ignored.
After all segments of the binary microcode file have been received, the drive behavior is the same as Download Microcode and
Save (Mode 00101b) - Single Binary File.

17.45.6 Write Data to Echo Buffer (Mode 01010b)

In this mode the Target transfers data into the echo buffer. The echo buffer is assigned in the same manner by the Target as it
would for a WRITE operation. Data will be sent aligned on 4-byte boundaries.
Upon successful completion of a WRITE BUFFER command the data will be preserved in the echo buffer unless there is an
intervening command to any logical unit, in which case it may be changed.

17.45.7 Enable Expander Communications Protocol (Mode 11010b)

In this mode the drive behavior is the same as Write Data to Echo Buffer (Mode 0101b).
Hitachi Ultrastar 15K147 SCSI Hard Disk Drive Specification
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