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Command Specifications
Table 4.16 MODE SENSE data type specifications
PC Type of Parameter Transferred to the INIT
00 Current Values:
Reports each "Current" parameter value. The "Current" values are either of the
following values.
• Values specified by a MODE SELECT or MODE SELECT EXTENDED
command which is finally normally terminated.
• When a MODE SELECT or MODE SELECT EXTENDED command is not
executed after the power is switched on, after a Hard Reset or LU Reset
issued by any INIT is received, the same values as "Save" values.
However, if "Save" values do not exist for parameters other than those on
Page 3 and Page 4 (excluding byte 17), the same values as "Default" values.
01 Variable Values:
The INIT reports variable parameter fields and parameter bits through the
MODE SELECT or MODE SELECT EXTENDED command. A "1" is reported
in the variable fields and bit positions in each page descriptor and "0" is reported
in the fields and bit positions which cannot be changed. See the description of
each page descriptor for the MODE SELECT command (Chapter 5) concerning
the variability of each parameter.
10 Default Values:
Reports the "Default" value of each parameter. See the description of each page
descriptor for the MODE SELECT command (Chapter 5) concerning the actual
default value of each parameter.
11 Save Values:
Reports the "Save" value of each parameter. The "Save" values are either of the
following values.
• For parameters other than those on Page 3 and Page 4, these are the values
specified in a MODE SELECT or MODE SELECT EXTENDED command
in which the "SP" bit after the final execution is completed is "1." When a
MODE SELECT or MODE SELECT EXTENDED command in which the
"SP" bit is "1" is not executed (when "Save" values do not exist), these are
the same values as the "Default" values.
• The values in the parameters in Page 3 and Page 4 are the values save to the
disk media during execution of the FORMAT UNIT command.
168 C141-C013