Read command sequences and phase progression, Read command sequences and phase progression -118 – FUJITSU C150-E049-02EN User Manual
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M3099GX/GH OEM Manual
READ command sequences and phase progression
This scanner initially has image buffer memory different from former
Fujitsu image scanner M3096G/M3097G.
Notations :
ARB:
ARBITRATION phase
SEL:
SELECTION phase
CMD: COMMAND phase
DI:
DATA IN phase
MI:
MESSAGE IN phase
MO:
MESSAGE OUT phase
STS:
STATUS phase
BF:
BUS FREE
Init:
Initiator (Host Computer)
Targ:
Target (Image Scanner)
Variables for explanation
TL:
Requested Transfer Length size. [bytes]
WD:
Window Data size defined by SET WINDOW
command. [bytes]
If compression is specified, the size is compressed data.
VD:
Scanned image data size in scanner memory [bytes]
This value is varied on scanning progression.
M:
Transferred data size [bytes]
N:
N = (VD div 65536). [bytes]
TD:
Total Data that is transferred. [bytes]
When TL
≥
WD at first READ command, it is called ‘Single READ’
sequence. This scanner has default page buffer memory, therefore,
the Single READ is completely subset of Multiple READ. This
document has omitted Single READ sequence.
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