A.4 Commands

∙PF (PAGE FORMAT): Byte 1

When PF=1, it is indicated that the parameters of this command is fitted to the SCSI-2 specification.

For this scanner, PF=1 only is supported.

Otherwise, the following error is returned:

-

Status:

B’00001’ (CHECK CONDITION)

-

Sense key:

X’5’ (ILLEGAL REQUEST)

∙SP (SAVE PAGES): Byte 1 This scanner ignores SP.

∙PARAMETER LIST LENGTH: Byte 4

Specifies the number of bytes of the mode parameter list sent in the DATA OUT phase.

0 means that there is no data to be transferred. This is not regarded as an error.

(2)Mode parameter list data: DATA OUT phase (Initiator to Target)

The mode parameter list data consists of one header, 0 or more than one descriptor block, and 0 or more than one page as one unit.

In this scanner, the descriptor block and vendor-specific area are omitted, thus the mode parameter list data consists of one header and one page.

a.Header

The mode parameter data (header) is shown below:

7

6

5

4

3

2

1

0

Byte 0

1

2

(Reserved)

3

Block descriptor length

 

 

Appendix A-95