OEM MANUAL:K6602771
6 COMMAND DESCRIPTIONS
Revision: 2 / Date: 2002.12.19
Page: 288 / 313
(3) Write Data
In this mode, a header is not transferred but the data is transferred into the
buffer starting at the address as specified in the Buffer Offset field.
(4) Device Unique mode
In this mode, device unique motion will be executed.
(5) Download Microcode and Save
In this mode, the transferred data (Microcode) is written into the system area in
the disk medium. When the download and save operation has completed
normally, the controller creates the UNIT ATTENTION condition to the all
initiators except that issued this command. The Buffer Offset field must
always be set to 0 as the controller does not support this field. If this condition
is violated , the controller creates the CHECK CONDITION status with
ILLEGAL REQUEST.
(6)
Download Microcode with offsets and save
In this mode, the intiator may split the transfer of the Microcode or control
information over two or mode WRITE BUFFER command. The Microcode
written to the logical unit buffer starting at the location specified by the
BUFFER OFFSET field. The controller supports 512 byte boundaries only.
(7) Echo Buffer
In this mode, the data is to be stored into the echo buffer.
Table 6-110 Write Buffer Header
Byte
WRITE BUFFER Header
0
Reserved
0
0
0
0
0
0
0
0
1
Reserved
0
0
0
0
0
0
0
0
2
Reserved
0
0
0
0
0
0
0
0
3
Reserved
0
0
0
0
0
0
0
0
WRITE BUFFER:(3Bh)