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GL843 Datasheet(PDF) 35 Page - GENESYS LOGIC |
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GL843 Datasheet(HTML) 35 Page - GENESYS LOGIC |
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35 / 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 35 Offset 29h ……..……………………………………..………..….…..…….…. Default value = 8’h00 X X X RAMADDR20 RAMADDR19 RAMADDR18 RAMADDR17 RAMADDR16 X X X R/W R/W R/W R/W R/W 7-5 RESERVED - 4-0 RAMADDR[20:16] SDRAM start address (in word) to access data. The unit is 16 words. Note: The real SDRAM address IRAM_A[24:0]={RAMADDR[20:0] appended by 0000}. Offset 2Ah ……..……..……………………………..……….…..….…..…….…. Default value = 8’h00 RAMADDR15 RAMADDR14 RAMADDR13 RAMADDR12 RAMADDR11 RAMADDR10 RAMADDR9 RAMADDR8 R/W R/W R/W R/W R/W R/W R/W R/W 7-0 RAMADDR[15:8] SDRAM start address (in word) to access data. The unit is 16 words. Note: The real SDRAM address IRAM_A[24:0]={RAMADDR[20:0] appended by 0000}. Offset 2Bh ……..……..……………………………..….………..….…..…….…. Default value = 8’h00 RAMADDR7 RAMADDR6 RAMADDR5 RAMADDR4 RAMADDR3 RAMADDR2 RAMADDR1 RAMADDR0 R/W R/W R/W R/W R/W R/W R/W R/W 7-0 RAMADDR[7:0] SDRAM start address (in word) to access data. The unit is 16 words. Note: The real SDRAM address IRAM_A[24:0]={RAMADDR[20:0] appended by 0000}. Offset 2Ch ……..……..……………………………..….………..….…..…….…. Default value = 8’h00 X X DPISET13 DPISET12 DPISET11 DPISET10 DPISET9 DPISET8 X X R/W R/W R/W R/W R/W R/W 7-5 RESERVED - 4-0 DPISET[13:8] Set resolution in dpi for average or deletion type. A. average type : digital average function support 1/2,1/3,1/4,1/5,1/6,1/8,1/10,1/12,1/15. a. 9600 dpi mode CCD:support 4800,3200,2400,1920,1600,1200,960,800,640 dpi. b. 4800 dpi mode CCD:support 2400,1600,1200,960,800,480,400,320 dpi. c. 2400 dpi mode CCD:support 1200,800,600,480,400,300,240,200,160 dpi. 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 2Dh ……..……..……………………………..….………..….…..…….…. Default value = 8’h00 DPISET7 DPISET6 DPISET5 DPISET4 DPISET3 DPISET2 DPISET1 DPISET0 R/W R/W R/W R/W R/W R/W R/W R/W 7-0 DPISET[7:0] Set resolution in dpi for average or deletion type. A. average type : digital average function support 1/2,1/3,1/4,1/5,1/6,1/8,1/10,1/12,1/15. a. 9600 dpi mode CCD:support 4800,3200,2400,1920,1600,1200,960,800,640 dpi. b. 4800 dpi mode CCD:support 2400,1600,1200,960,800,480,400,320 dpi. c. 2400 dpi mode CCD:support 1200,800,600,480,400,300,240,200,160 dpi. |
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