Datasheet

4.1 Control/Sense Commands
C141-C008 4-19
Block descriptor
Pages: 3, 4
[Command to
all INITs]
Power-on
LIP (y, x)
TARGET RESET
FORMAT UNIT
Power-on
Power-on
LIP (y, x)
TARGET RESET
MODE
SELECT
MODE SELECT (SP=1)
Pages:
1, 2, 7, 8, A, C, 19, 1C,
21
[Command to all INITs]
Pages:
1, 2, 7, 8, A, C, 19,
1C, 21
[Command to all INITs]
Remark:
When the drive is shipped from the factory,
there are not parameter page “Save” values
except for Page 3 (Format Parameters) and
Page 4 (Drive Parameters). “Save” values
for the paramters pages specified in the
MODE SELECT command are generated
for the first time when that command is
executed with “1” specified in the “SP” bit.
Block descriptor
Pages: 3, 4
[Command to all INITs]
Pages:
1, 2, 7, 8, A, C, 19,
1C, 21
[Command to all INITs]
Current values Save values
Default values
Figure 4.1 MODE SELECT parameter structure
The MODE SELECT parameters include parameters which can be changed by the
INIT as desired, parameters which the INIT cannot change, which whose values
are determined by the IDD unilaterally and parameters which can be changed by
the INIT within certain appropriate limits. The IDD also contains parameter
fields which are applicable for rounding processing ("rounding up" or "rounding
down") of parameter values specified by the INIT to values which the IDD can
use in actual operation.
When changing of parameters other than "variable parameters" is requested by the
INIT in the MODE SELECT parameters which it transfers in this command, or
when changes which are outside the permissible range are requested, even though
they are "variable parameters," this command is terminated with a CHECK
CONDITION status (ILLEGAL REQUEST [=5] / Invalid field in parameter list
[=26-00]) and all the parameters specified by the INIT are disabled. Furthermore,
parameter fields exist which ignore the values specified by the INIT, even if the
parameters are "variable parameters." Details are explained in the description of
each page descriptor in this item.