X3T10/94-110r1 - Scanner Window Descriptor Bytes Proposal

[Ralph Weber -- VMS -- ZKO3-4/U14]

                                                             X3T10/94-110r1
To:           Membership of X3T10

From:         Tetsuro Motoyama, Ricoh Corporation
              Ralph O. Weber, X3T10

Date:         June 22, 1994

Subject:      Scanner Window Descriptor Bytes Proposal
____________________________________________________________________________

As requested at the May Plenary, I have discussed the disposition of the
scanner proposal (originally X3T9.2/93-036r1) with Mr. Tetsuro Motoyama. 
As shown by the following e-mail message, Mr. Motoyama desires that the
proposal be approved as revised.  The only revision from the origianl
proposal is an ASC value that is acceptable to George Penokie and me. 
This is this only revision ever requested by the committee.  -- Ralph


Hi Ralph:

Thank you for your input.  I would like to take your first option, that is,
to see you propose the final copy to the committee.  As my schedule stands
now, I may not be able to attend the meeting.

Tetsuro

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% Subject: RE: Regarding the Additional Sense Code and Qualifier
____________________________________________________________________________


This is a proposal for Scanner command to incorporate the wider data width. 

It is SCSI-3 proposal under the SCSI-3 Graphics Commands (SGC) project.

1.   Definition of Bit Ordering in the "Window Descriptor Bytes" for 
     SET WINDOW

                _____________________________________
       (MSB)   |    |    |    |    |    |    |   |   | 
               | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 |
               |____|____|____|____|____|____|___|___|
               |  7 |  6 |  5 | 4  |  3 | 2  | 1 | 0 |
               |____|____|____|____|____|____|___|___|  (LSB)

B0:
     0: Output leading bit to the least significant data bit
     1: output leading bit to the most significant data bit

B1:
     0: Output the lower byte on the lower data position  (Big Endian) 
     1: Output the higher byte on the lower data position  (Little Endian)

     <for example>

Image data      byte0,byte1,byte2,byte3,byte4,byte5,byte6,byte7...

   Big Endian
      ((byte0,byte1))((byte2,byte3))((byte4,byte5)(byte6,byte7)),..
       (B1, B0) = (0,1)

   Little Endian
      16bit    (byte1,byte0),(byte3,byte2),(byte5,byte4),(byte7,byte6),...
      32bit    (byte3,byte2,byte1,byte0),(byte7,byte6,byte5,byte4),...

      (B1, B0) = (1, 1)

B2:
     0: Output Multi-value unpacked
     1: Output Multi-value packed

B3 - B6:
     Reserved

B7:
     0: Normal Output
     1: Mirroring Output

B8 - B15:
     Reserved


2. Additional scanner error commands for Additional Sense Code/Qualifier 

Automatic Document Feeder (ADF) Error      Additional Sense Code/ Qualifier

ADF Cover Open                                              66H / 00H
ADF Lift Up                                                 66H / 01H
Document Jam in ADF                                         66H / 02H
Document Miss Feed in ADF                                   66H / 03H