FUJITSU M3097G - Manual (Page 110)

f DBD (disable block descriptor): Byte 1
When the DBD bit is 1, the target must not return the mode descriptor block in
the Data In phase. When this bit is 0, the target may or may not return the
block.
This bit must be 0.
f PC (page control): Byte 2
PC specifies the type of parameter returned, defined as follows:
PC Parameter type
00 Current value
01 Changeable value
10 Default
11 Saved value
Only 00 (current value) can be set. Other values cause the following error:
Status: B©00001π (CHECK CONDITION)
Sense key: X©05π (ILLEGAL REQUEAT)
Page code: Byte 2
The page code specifies the page to be reported. The following are supported:
Page code Description
X©00π Donπt care (IGNORE)
Xπ01π Reserved
X©02π Not supported
X©03π Not supported
X©04π to X©3Dπ Reserved
X©3Dπ Lamp timer
X©3Eπ Job separation sheet
X©3Fπ Reserved
f Allocation length: Byte 4
The allocation length specifies the storage area allocated by the initiator for
the mode sense data in bytes.
0 means no data is transferred. This is not an error.
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