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WRITE BUFFER
0
1
2
3
5
6
8
9
160 Commands
is used to transfer data into memory on the drive for the purposes
Write Buffer
of diagnostics, tests or firmware upgrade. The data is placed into one of the
drive buffers depending on the Mode and Buffer ID fields of the command.
Do not attempt to use the buffer modifying functions of this
Caution
command unless you really know what you are doing. The buffer
modifying functions are intended as a diagnostic aid to be used
in conjunction with the
modify data in the buffer so that it subsequently written to media
because all host data is flushed before executing the command.
The firmware download functions are intended for use by manufacturing and
by customers using upgrade utilities supplied by HP.
Pre-Execution Checks:
Illegal Field
Command Descriptor Block:
7
6
Reserved (0)
(MSB)
(MSB)
Read Buffer
Reservation
Deferred Error
5
4
Operation Code (3Bh)
Buffer ID
Buffer Offset
Parameter List Length
Control
command. It is not possible to
Unit Attention
3
2
1
Mode
3Bh
0
(LSB)
(LSB)
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