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GL843 Datasheet(PDF) 36 Page - GENESYS LOGIC |
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GL843 Datasheet(HTML) 36 Page - GENESYS LOGIC |
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36 / 84 page ![]() GL843 High Speed USB2.0 With ADF 2-in-1 Scanner Controller For 3x ©2000-2006 Genesys Logic Inc. - All rights reserved. Page 36 d. 1200 dpi mode CCD:support 600,400,300,240,200,150,120,100,80 dpi. e. 600 dpi mode CCD:support 300,200,150,120,100,75,60,50,40 dpi. B. deletion type : 9600,4800,2400,1200 or 600dpi to 1 dpi setting decrement by one dpi. Note: It cannot be programmed to logic zero. Offset 2Eh ……..……..……………………………..….………..….…..…….…. Default value = 8’h00 BWHI7 BWHI6 BWHI5 BWHI4 BWHI3 BWHI2 BWHI1 BWHI0 R/W R/W R/W R/W R/W R/W R/W R/W 7-0 BWHI[7:0] High level of Black & White threshold. 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] Low level of Black & White threshold. BWHI BWLOW a,b,c,g : will be classified as black pixels d,e,f,h,i : will be classified as 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] The start pixel position of horizontal line (unit : pixel count). STRPIXEL=(TGW+2*TGSHLD)+start pixels number (count from CCD pixel 0) Note: 1.It cannot be programmed to logic zero. 2.If the DPI9600 control bit is set to “1”,the STRPIXEL is doubled. 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] The start pixel position of horizontal line (unit : pixel count). STRPIXEL=(TGW+2*TGSHLD)+start pixels number (count from CCD pixel 0) Note: 1.It cannot be programmed to logic zero. 2.If the DPI9600 control bit is set to “1”,the STRPIXEL is doubled. d h b c e f i hysteresis width a g |
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