GL843 GENESYS [GENESYS LOGIC], GL843 Datasheet - Page 30

• 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 19h ……………………………………………..…………….…….……. Default value = 8’h00
Offset 1Ah ……..……………………………………..…………..……………. Default value = 8’h00
TGLSW2
3-2 CKDELAY[1:0] 00 No delay
1-0 CKSEL[1:0]
7-0 EXPDMY[7:0] To set exposure time of dummy lines (unit = 256 pixels time) or CIS LED
EXPDMY7 EXPDMY6 EXPDMY5 EXPDMY4 EXPDMY3 EXPDMY2 EXPDMY1 EXPDMY0
4 CKTOGGLE
Note: Speed limitation of CCD clock in different scanning modes:
Note: Toggle CCD à CCD which can output one pixel in one half cycle of CCD clock.
7 TGLSW2
5 MANUAL3
4 MANUAL1
6 TGLSW1
R/W
R/W
CIS SP
CIS LED
Note: It cannot be programmed to logic zero.
1. SCANMOD=0,1 : 12 clocks/pixel
2. SCANMOD=2 : Reserved.
3. SCANMOD=3 : Reserved.
4. SCANMOD=4 : Reserved.
5. SCANMOD=5 : Reserved.
6. SCANMOD=6 : 18 clocks/pixel
7. SCANMOD=7 : 16 clocks/pixel
Non-toggle CCD à CCD which always output one pixel in one CCD clock cycle.
GL843 High Speed USB2.0 With ADF 2-in-1 Scanner Controller For 3x
TGLSW1
R/W
R/W
11 Speed 4: four CCD clock per system pixel time in shifting dummy lines.
0 One cycle per pixel.
1 Half cycle per pixel for CCD clock 1 & 2.
01 Delay one system clock for CCD Clock 1/2.
10 Delay two systems clock for CCD Clock 1/2.
11 Delay three systems clock for CCD Clock 1/2.
00 Speed 1: one CCD clock per system pixel time in capturing image.
01 Speed 2: two CCD clock per system pixel time in capturing image.
10 Speed 3: three CCD clock per system pixel time in capturing image.
11 Speed 4: four CCD clock per system pixel time in capturing image.
turn-on tme.
Set CCD SW2 output.
Set CCD SW1 output.
0 CCD Clock 3,Clock4 automatic output.
1 CCD Clock 3,Clock4 manual output.
0 CCD Clock 1,Clock2 automatic output.
1 CCD Clock 1,Clock2 manual output.
MANUAL3 MANUAL1
R/W
R/W
EXPDMY for turn on
R/W
R/W
a. toggle CCD : supports speed 1,2,3,4.
b. non-toggle CCD : supports speed 1,2,3.
a. toggle CCD : supports speed 1,2,3.
b. non-toggle CCD : supports speed 1,2,3,4.
a. toggle CCD : supports speed up 1,2,4.
b. non-toggle CCD : supports speed 1,2,4.
CK4INV
R/W
R/W
EXPR/EXPG/EXPB for turn off
CK3INV
R/W
R/W
LINECLP
R/W
R/W
Page 30
R/W
X
X