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SCSI Interface Product Manual, Rev. J
c. If an initiator attempts to send a page with a length not equal to the parameter length reported for that page
by the Mode Sense command.
d. If the initiator attempts to send a value for a changeable parameter that is outside the range supported by
the target and rounding is not implemented for that parameter (see note [5] of Table 101).
e. If the initiator sends a page descriptor with an unsupported page code value and the Strict mode is enabled
(see note [6] of Table 101).
If the initiator sends a value for a changeable parameter that is outside the range supported by the target and
rounding is implemented for that parameter, the target shall either:
a. round the parameter to an acceptable value and, if Round is one, terminate the command as described in
Section 4.8, or
b. round the parameter to an acceptable value and, if Round equals zero, terminate the command as if an
acceptable value had been sent from the initiator.
A target may alter any mode parameter in any mode page (even parameters reported as non-changeable) as a
result of changes to other mode parameters.
Table 85:
Mode Select (10) parameter list
Bit
7
Byte
0,1
0
2
0
3,4,5
0
6,7
Block Descriptor Length after 0 or 8 (decimal) [2]
0
0
1
0
2
0
3
0
4
0
5
Block Length (MSB) [5]
6
Block Length [5]
7
Block Length (LSB) [5]
0-n
Mode Select Page Headers and Their Parameters (Tables 82 and 83)
Notes.
[1]
The Medium Type field shall be 00h to define the default type direct access device.
[2]
The Block Descriptor Length specifies the length in bytes of the Block Descriptor. It is equal to the number
of bytes in the Block Descriptor (either 0 or 8) and does not include the page headers and mode parame-
6
5
0
0
0
0
0
0
Block Descriptor Data
0
0
0
0
Number of Blocks (MSB) [3] [4]
0
0
Number of Blocks [4]
0
0
Number of Blocks (LSB) [4]
0
0
Parameter Information [6]
4
3
0
0
Reserved
0
0
Medium Type [1]
0
0
Reserved
0
0
Density Code [3]
0
0
0
0
0
0
0
0
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
117
0
0
0
0
0
0
0
0
0
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