GL843 GENESYS [GENESYS LOGIC], GL843 Datasheet - Page 37

• Manufacturer Part Number: GL843
• Description: High Speed USB 2.0 With ADF 2-in-1 Scanner Controller
• Manufacturer: GENESYS [GENESYS LOGIC]

©2000-2006 Genesys Logic Inc. - All rights reserved.
Offset 32h ……..……………………………………..…………..….…..…….…. Default value = 8’h00
Offset 33h ……..……………………………………..…………..….…..…….…. Default value = 8’h00
Offset 34h ……..……………………………………..…………..….…..…….…. Default value = 8’h00
Offset 35h ……..…..……………………..………..….………..….…..…….…. Default value = 8’h00
ENDPIXEL15 ENDPIXEL14 ENDPIXEL13 ENDPIXEL12 ENDPIXEL11 ENDPIXEL10
MAXWD24 MAXWD23 MAXWD22 MAXWD21 MAXWD20 MAXWD19 MAXWD18 MAXWD17
7-0
7-0 ENDPIXEL[7:0] The end pixel position of horizontal line (unit : pixel count).
7-0 DUMMY[7:0]
7-0 MAXWD[24:17] Maximum word size per line for ASIC estimation. The unit is 2 words.
ENDPIXEL7 ENDPIXEL6 ENDPIXEL5 ENDPIXEL4 ENDPIXEL3 ENDPIXEL2 ENDPIXEL1 ENDPIXEL0
DUMMY7 DUMMY6 DUMMY5 DUMMY4 DUMMY3 DUMMY2 DUMMY1 DUMMY0
R/W
R/W
R/W
R/W
ENDPIXEL[15:8
CCD TG
CCD clock
CCD pixel no: N-1
GL843 High Speed USB2.0 With ADF 2-in-1 Scanner Controller For 3x
For example, start pixel is 65 ,end pixel is 100 and CCD dummy pixel is 64,
Then STRPIXEL=(TGW+2*TGSHLD)+65.
ENDPIXEL=(TGW+2*TGSHLD)+100.
DUMMY =(TGW+2*TGSHLD)+64.
R/W
R/W
R/W
R/W
] The end pixel position of horizontal line (unit : pixel count).
ENDPIXEL=(TGW+2*TGSHLD)+end pixels number (count from CCD pixel 0)
Note: 1.It cannot be programmed to logic zero.
ENDPIXEL=(TGW+2*TGSHLD)+end pixels number (count from CCD pixel 0)
Note: 1.It cannot be programmed to logic zero.
The CCD dummy & optical black pixels number (unit : pixel count).
Note: It cannot be programmed to logic zero.
If available buffer size < MAXWD, then “buffer full” state will be set. The
scanner execute backtracking.
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.
TGSHLD(Reg1D) RGW(Reg17)
R/W
R/W
R/W
R/W
N
Reg30,31,32,33 and 34 setting rule.
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
TGSHLD(Reg1D)
R/W
R/W
R/W
R/W
0
ENDPIXEL9 ENDPIXEL8
1
R/W
R/W
R/W
R/W
2
Page 37
R/W
R/W
R/W
R/W
3
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