gl848 Genesys Logic, gl848 Datasheet - Page 24

• Manufacturer Part Number: gl848
• Description: High Speed Usb 2.0 2-in-1 Scanner Controller With Fast Adf & Bus Power
• Manufacturer: Genesys Logic

©2000-2007 Genesys Logic Inc. - All rights reserved.
Offset 07h ……………………………………………..…………..……..………. Default value = 8’h00
7
Offset 08h ……………………………………………..…………..……..………. Default value = 8’h00
Offset 09h ……………………………………………..…………..……..………. Default value = 8’h00
6-0 RESERVE [6:0] These bits are reserved for special application
7-6 MCNTSET [1:0] To select the unit of motor table counter.
2-0 OPTEST [2:0] Select ASIC operation type.
MCNTSET1 MCNTSET0
DRAM2X
4 PWRBIT
3 GAIN4
7 DRAM2X
6
5 MPENB
4 CIS_LINE
0 ENB24M
Note: Please do not write other values than 00H into this register under normal condition.
LAMPSIM
R/W
R/W
R/W
LAMPSIM
SCNUMENB
GL848 High Speed USB2.0 2-in-1 Scanner Controller With Fast ADF
SCNUMENB
RESERVE6 RESERVE5 RESERVE4 RESERVE3 RESERVE2 RESERVE1 RESERVE0
R/W
R/W
R/W
The hardware will reset this bit during power-on initial process. It can be set and
checked by S/W to know if the power had been turned off or not.
Default is reset.
0 Digital shading gain=8 times system.
1 Digital shading gain=4 times system.
Note: If you want to get more precise image quality,you can set GAIN4 bit.
000 Set normal mode to capture AFE image.
001 Set SDRAM bank testing and power-on moving testing for ASIC simulation
010 Pixel count pattern for ASIC image test.
011 Line count pattern for ASIC image test.
100 Counter and adder test for ASIC simulation test.
101 Reserved.
110 Reserved.
111 Reserved.
0 Select single chip of SDRAM
1 Enable two chips of SDRAM
Enable page count which is stored in memory for ADF operation
Enable motor phase generating function which is stored in memory
Set CIS_LINE to “1” and set CISSET to “1” at the same time to enable CIS
scanning, and work on line by line mode.
0 Disable 24MHz CCD/CIS Clock output
1 Enable 24MHz CCD/CIS Clock output
00 Pixel count.
01 System clock*2.
10 System clock*3.
for timer simulation
EVEN1ST BLINE1ST
MPENB
Color scanning
Gray scanning
Line art scanning : 1 bit image with gamma correction
R/W
R/W
R/W
CIS_LINE
R/W
R/W
R/W
: 24 bits image with gamma correction
: 8 bits image with gamma correction
48 bits image without gamma correction
16 bits image without gamma correction
BACKSCAN
R/W
R/W
X
X
R/W
X
X
X
X
SHORTTG
R/W
R/W
X
X
ENB24M
Page 24
R/W
R/W
X
X