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GL843 Datasheet(PDF) 38 Page - GENESYS LOGIC |
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GL843 Datasheet(HTML) 38 Page - GENESYS LOGIC |
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38 / 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 38 Offset 36h …….……..……………………..………..….………..….…..…….…. Default value = 8’h00 MAXWD16 MAXWD15 MAXWD14 MAXWD13 MAXWD12 MAXWD11 MAXWD10 MAXWD9 R/W R/W R/W R/W R/W R/W R/W R/W 7-0 MAXWD[16:9] Maximum word size per line for ASIC estimation. The unit is 2 words. If available buffer size < MAXWD, then “buffer full” state will be set. The scanner execute backtracking. Offset 37h …….……..……………………..………..….………..….…..…….…. Default value = 8’h00 MAXWD8 MAXWD7 MAXWD6 MAXWD5 MAXWD4 MAXWD3 MAXWD2 MAXWD1 R/W R/W R/W R/W R/W R/W R/W R/W 7-0 MAXWD[8:1] Maximum word size per line for ASIC estimation. The unit is 2 words. If available buffer size < MAXWD, then “buffer full” state will be set. The scanner execute backtracking. Offset 38h …….……..……………………..………..….………..….……..……. Default value = 8’h2A LPERIOD15 LPERIOD14 LPERIOD13 LPERIOD12 LPERIOD11 LPERIOD10 LPERIOD9 LPERIOD8 R/W R/W R/W R/W R/W R/W R/W R/W 7-0 LPERIOD[15:8] Line period (or exposure time) for CCD or CIS. Unit : pixel count Note: It cannot be programmed to logic zero. Offset 39h ……….…..……………………..………..….………..………………. Default value = 8’h30 LPERIOD7 LPERIOD6 LPERIOD5 LPERIOD4 LPERIOD3 LPERIOD2 LPERIOD1 LPERIOD0 R/W R/W R/W R/W R/W R/W R/W R/W 7-0 LPERIOD[7:0] Line period (or exposure time) for CCD or CIS. Unit : pixel count Note: It cannot be programmed to logic zero. Offset 3Ah X X X X X X X FEWRDATA8 X X X X X X X W 7-1 RESERVED - 0 FEWRDATA8 This port is for designers to write control register of front-end. Offset 3Bh FEWRDATA7 FEWRDATA6 FEWRDATA5 FEWRDATA4 FEWRDATA3 FEWRDATA2 FEWRDATA1 FEWRDATA0 W W W W W W W W 7-0 FEWRDATA[7:0] This port is for designers to write control register of front-end. |
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