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Command Specifications
The "PC" bits are ignored by the drive. The drive assumes that current cumulative
parameters are selected.
The "Parameter List Length" field specifies the length in bytes of the parameter list
that is located in the Data-Out Buffer. If a parameter list length results in the
truncation of any log parameter, the HDD terminates this command with CHECK
CONDITION status (ILLEGAL REQUEST [=5] / Invalid field in CDB [=24-00]).
A "Parameter List Length" of zero indicates that no pages shall be transferred.
This condition shall not be considered an error.
The HDD does not support that the application client should send
pages in ascending order by page code value if the Data-Out Buffer
contains multiple pages.
Table 4.20 LOG SELECT command parameter configuration
Bit
Byte
0
1
Header
2
3
4
~
~
x+3
~
~
Log
~
~
Paramete
n-y+1
~
~
n
188
Table 4.19 PC (page control)
Value
00b
Current threshold values
01b
Current cumulative values
10b
Default threshold values
11b
Default cumulative values
7
6
5
Page Length (MSB)
Page Length (LSB)
Log Parameter (First)
Log Parameter (Last)
Description
4
3
2
Page Code
Reserved
(Length x)
(Length y)
1
0
~
~
~
~
C141-C013
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