GL843 datasheet(29/84 Pages) GENESYS

29 / 84 page

GL843 High Speed USB2.0 With ADF 2-in-1 Scanner Controller For 3x

Page 29

Enable clock 1 and 2 under CCD TG position as illustrated.

0 CTRLDIS

Disable CCD CP & RS signals under CCD TG position as illustrated.

Enable CCD CP & RS signals under CCD TG position as illustrated.

Offset 17h ……………………………………………..…………..……….……. Default value = 8’h14

TGMODE1 TGMODE0

TGW5

TGW4

TGW3

TGW2

TGW1

TGW0

R/W

7-6 TGMODE[1:0] To set CCD TG mode.

normal CCD TG type.

CCD TG control with dummy line.

CCD TG control with dummy lines for transparency scanning type.

reserved for ASIC simulation.

5-0 TGW[5:0]

To set CCD TG plus width (in pixel time).

Note: It cannot be programmed to logic zero.

Offset 18h ……………………………………………..…………..……..………. Default value = 8’h00

CNSET

DCKSEL1

DCKSEL0 CKTOGGLE CKDELAY1 CKDELAY0

CKSEL1

CKSEL0

R/W

7 CNSET

Select TG and clock to be non-Canon CIS style.

Select TG and clock to be Canon CIS style.

6-5 DCKSEL1[1:0] 00

Speed 1: one CCD clock per system pixel time in shifting dummy lines.

Speed 2: two CCD clock per system pixel time in shifting dummy lines.

Speed 3: three CCD clock per system pixel time in shifting dummy lines.

GL843 Datasheet(PDF) 29 Page - GENESYS LOGIC