gl846 Genesys Logic, gl846 Datasheet - Page 39

• Manufacturer Part Number: gl846
• Description: High Speed Usb 2.0 2-in-1 Scanner Controller With Fast Adf
• Manufacturer: Genesys Logic

©2000-2007 Genesys Logic Inc. - All rights reserved.
Offset 2Eh ……..……..……………………………..….………..….…..…….…. Default value = 8’h00
Offset 2Fh ……..……..……………………………..….………..….…..…….…. Default value = 8’h00
Offset 30h ……..……………………………………..…………..….…..…….…. Default value = 8’h00
Offset 31h ……..……………………………………..…………..….…..…….…. Default value = 8’h00
Offset 32h ……..……………………………………..…………..….…..…….…. Default value = 8’h00
7-0 BWHI [7:0]
7-0 BWLOW [7:0] Low level of Black & White threshold.
7-0
7-0 STRPIXEL [7:0] The start pixel position of horizontal line (unit : pixel count).
ENDPIXEL15 ENDPIXEL14 ENDPIXEL13 ENDPIXEL12 ENDPIXEL11 ENDPIXEL10
STRPIXEL7 STRPIXEL6 STRPIXEL5 STRPIXEL4 STRPIXEL3 STRPIXEL2 STRPIXEL1 STRPIXEL0
STRPIXEL15 STRPIXEL14 STRPIXEL13 STRPIXEL12 STRPIXEL11 STRPIXEL10
BWLOW7 BWLOW6 BWLOW5 BWLOW4 BWLOW3 BWLOW2 BWLOW1 BWLOW0
BWHI7
R/W
R/W
R/W
R/W
R/W
STRPIXEL [15:8
GL846 High Speed USB2.0 2-in-1 Scanner Controller With Fast ADF
BWHI
BWLOW
BWHI6
R/W
R/W
R/W
R/W
R/W
] The start pixel position of horizontal line (unit : pixel count).
one dpi.
Note: It cannot be programmed to logic zero.
a,b,c,g : will be classified as black pixels
d,e,f,h,i : will be classified as white pixels
STRPIXEL=(TGW+2*TGSHLD)+start pixels number (count from CCD pixel 0)
Note: 1.It cannot be programmed to logic zero.
STRPIXEL=(TGW+2*TGSHLD)+start pixels number (count from CCD pixel 0)
Note: 1.It cannot be programmed to logic zero.
High level of Black & White threshold.
BWHI5
2.If the DPI9600 control bit is set to “1”,the STRPIXEL is doubled.
2.If the DPI9600 control bit is set to “1”,the STRPIXEL is doubled.
a
R/W
R/W
R/W
R/W
R/W
b
BWHI4
c
R/W
R/W
R/W
R/W
R/W
e
d
BWHI3
R/W
R/W
R/W
R/W
R/W
g
f
BWHI2
R/W
R/W
R/W
R/W
R/W
h
i
STRPIXEL9 STRPIXEL8
ENDPIXEL9 ENDPIXEL8
BWHI1
R/W
R/W
R/W
R/W
R/W
hysteresis width
BWHI0
Page 39
R/W
R/W
R/W
R/W
R/W