gl846 Genesys Logic, gl846 Datasheet - Page 25

• Manufacturer Part Number: gl846
• Description: High Speed Usb 2.0 2-in-1 Scanner Controller With Fast Adf
• Manufacturer: Genesys Logic

4.2 Register Descriptions
©2000-2007 Genesys Logic Inc. - All rights reserved.
Notation:
Offset 01h
Offset 02h
NOTHOME ACDCDIS AGOHOME MTRPWR FASTFED
FDh
F5h
F6h
F7h
F8h
FEh
FFh
R/W
R/O
W/O
R/W1C
R/W/C
X
7 CISSET
6 DOGENB
5 DVDSET
4 STAGGER
3 COMPENB
2 TRUEGRAY
1 SHDAREA
0 SCAN
7 NOTHOME
6 ACDCDIS
5 AGOHOME
CISSET
R/W
R/W
GL846 High Speed USB2.0 2-in-1 Scanner Controller With Fast ADF
DOGENB
R/W
R/W
MOTTGST[3:0]
MAINTSK[3:0]
MAXSEL[3:0]
Read / Write
Read Only
Write Only
Readable and Write-1-Clear
Read / Write and hardware automatic Clear
Don’t care and should be wrote by logic “0”
0 CCD scan type.
1 CIS scan type.
0 Disable watchdog function.
1 Enable watchdog function (set time out duration in Reg1E[7:4]).
0 Disable shading function.
1 Enable shading function (include whole line shading and area shading).
0 Disable data compression.
1 Enable lossless data compression.
0 Disable true gray function.
1 Enable true gray function. The weightings are stored in Reg A3,A4 and A5.
0 Select whole-line shading.
1 Select area-shading (depend on scan area and scan dpi).
0 Disable scanning process.
1 Enable scanning process.
0 In auto-go-home function, carriage will not stop until touching the home sensor.
1 In auto-go-home function, moving steps of carriage depends on steps setting
0 Enable carriage backtracking when image buffer is full.
1 Disable carriage backtracking when image buffer is full.
0 Disable auto-go-home function.
1 Enable auto-go-home function. It’s for carriage to go home automatically
1 Enable double shading.
0 Disable double shading.
from software (Reg 3D, 3E and 3F).
DVDSET
R/W
R/W
STAGGER
R/W
R/W
AUTO_S[7:0]
B2DWN[7:0]
B2UP[15:8]
B2UP[7:0]
COMPENB
R/W
R/W
TRUEGRAY
MTRREV HOMENEG
AUTO_O[3:0]
SUBTSK[3:0]
MINSEL[3:0]
R/W
R/W
SHDAREA
R/W
R/W
LONGCURV
SCAN
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R/W
R/W
8’h00
8’h00
8’h00
8’h00
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