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GL843 Datasheet(PDF) 21 Page - GENESYS LOGIC

Part # GL843
Description  High Speed USB 2.0 With ADF 2-in-1 Scanner Controller
PDF  84 Pages
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Manufacturer  GENESYS [GENESYS LOGIC]
Direct Link  http://www.genesyslogic.com
Logo GENESYS - GENESYS LOGIC

GL843 Datasheet(HTML) 21 Page - GENESYS LOGIC

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GL843 High Speed USB2.0 With ADF 2-in-1 Scanner Controller For 3x
©2000-2006 Genesys Logic Inc. - All rights reserved.
Page 21
W/O
Write Only
R/W1C
Readable and Write-1-Clear
R/W/C
Read / Write and hardware automatic Clear
4.2 Register Descriptions
Offset 01h
CISSET
DOGENB
DVDSET
STAGGER
COMPENB TRUEGRAY SHDAREA
SCAN
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
7 CISSET
0
CCD scan type.
1
CIS scan type.
6 DOGENB
0
Disable watchdog function.
1
Enable watchdog function (set time out duration in Reg1E[7:4]).
5 DVDSET
0
Disable shading function.
1
Enable shading function (include whole line shading and area shading).
4 STAGGER
1
Enable double shading.
0
Disable double shading.
3 COMPENB
0
Disable data compression.
1
Enable lossless data compression.
2 TRUEGRAY
0
Disable true gray function.
1
Enable true gray function. The weightings are stored in Reg A3,A4 and A5.
1 SHDAREA
0
Select whole-line shading.
1
Select area-shading (depend on scan area and scan dpi).
0 SCAN
0
Disable scanning process.
1
Enable scanning process.
Offset 02h
NOTHOME ACDCDIS AGOHOME MTRPWR
FASTFED
MTRREV HOMENEG LONGCURV
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
7 NOTHOME
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
from software (Reg 3D, 3E and 3F).
6 ACDCDIS
0
Enable carriage backtracking when image buffer is full.
1
Disable carriage backtracking when image buffer is full.
5 AGOHOME
0
Disable auto-go-home function.
1
Enable auto-go-home function. It’s for carriage to go home automatically
after scanning finished.
4 MTRPWR
0
Turn off MOTOR power and phase to idle state.
1
Turn on MOTOR power and phase.
3 FASTFED
0
Move to scanning window by only one acceleration/deceleration tables.
1
Move to scanning window by two acceleration/deceleration tables.
2 MTRREV
0
Set motor to move in forward direction.
1
Set motor to move in reverse direction.
1 HOMENEG
0
Motor will be decelerated when home sensor input (HOME) changes from low
to high (rising edge).
1
Motor will be decelerated when home sensor input (HOME) changes from
high to low (falling edge).
0 LONGCURV
0
The deceleration curve of the fast moving is defined in table 4 or use default



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