GL842 Datasheet, PDF (31/64 Pages) GENESYS LOGIC – USB 2.0 2-in-1 Scanner Controller

GL842 USB 2.0 2-in-1 Scanner Controller
Offset 2Fh ……..……..……………………………..….………..….…..…….…. Default value = 8’h00
BWLOW7 BWLOW6 BWLOW5 BWLOW4 BWLOW3 BWLOW2 BWLOW1 BWLOW0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
7-0 BWLOW[7:0] To set Black & White threshold low level.
BWHI
BWLOW
d
h
bc
e
f
i
bandwidth
g
a
a,b,c,g : are black pixels
d,e,f,h,i : are white pixels
Offset 30h ……..……………………………………..…………..….…..…….…. Default value = 8’h00
STRPIXEL15 STRPIXEL14 STRPIXEL13 STRPIXEL12 STRPIXEL11 STRPIXEL10 STRPIXEL9 STRPIXEL8
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
7-0 STRPIXEL[15:8] To set the begin pixel position (unit : pixel count).
STRPIXEL=(TGW+2*TGSHLD)+Begin pixels number.
Note: Can’t be programmed to logic zero.
Offset 31h ……..……………………………………..…………..….…..…….…. Default value = 8’h00
STRPIXEL7 STRPIXEL6 STRPIXEL5 STRPIXEL4 STRPIXEL3 STRPIXEL2 STRPIXEL1 STRPIXEL0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
7-0 STRPIXEL[7:0] To set the begin pixel position (unit : pixel count).
STRPIXEL=(TGW+2*TGSHLD)+Begin pixels number.
Note: Can’t be programmed to logic zero.
Offset 32h ……..……………………………………..…………..….…..…….…. Default value = 8’h00
ENDPIXEL15 ENDPIXEL14 ENDPIXEL13 ENDPIXEL12 ENDPIXEL11 ENDPIXEL10 ENDPIXEL9 ENDPIXEL8
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
7-0 ENDPIXEL[15:8] To set the end pixel position (unit : pixel count).
ENDPIXEL=(TGW+2*TGSHLD)+End pixels number.
Note: Can’t be programmed to logic zero.
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