GL843 GENESYS [GENESYS LOGIC], GL843 Datasheet - Page 21

• Manufacturer Part Number: GL843
• Description: High Speed USB 2.0 With ADF 2-in-1 Scanner Controller
• Manufacturer: GENESYS [GENESYS LOGIC]

4.2 Register Descriptions
©2000-2006 Genesys Logic Inc. - All rights reserved.
Offset 01h
Offset 02h
NOTHOME ACDCDIS AGOHOME MTRPWR FASTFED
W/O
R/W1C
R/W/C
7 CISSET
6 DOGENB
5 DVDSET
4 STAGGER
3 COMPENB
2 TRUEGRAY
1 SHDAREA
0 SCAN
7 NOTHOME
6 ACDCDIS
5 AGOHOME
4 MTRPWR
3 FASTFED
2 MTRREV
1 HOMENEG
0 LONGCURV
CISSET
R/W
R/W
GL843 High Speed USB2.0 With ADF 2-in-1 Scanner Controller For 3x
DOGENB
R/W
R/W
Write Only
Readable and Write-1-Clear
Read / Write and hardware automatic Clear
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
0 Turn off MOTOR power and phase to idle state.
1 Turn on MOTOR power and phase.
0 Move to scanning window by only one acceleration/deceleration tables.
1 Move to scanning window by two acceleration/deceleration tables.
0 Set motor to move in forward direction.
1 Set motor to move in reverse direction.
0 Motor will be decelerated when home sensor input (HOME) changes from low
0 The deceleration curve of the fast moving is defined in table 4 or use default
1 Motor will be decelerated when home sensor input (HOME) changes from
1 Enable double shading.
0 Disable double shading.
to high (rising edge).
from software (Reg 3D, 3E and 3F).
after scanning finished.
high to low (falling edge).
DVDSET
R/W
R/W
STAGGER
R/W
R/W
COMPENB
R/W
R/W
TRUEGRAY
MTRREV HOMENEG
R/W
R/W
SHDAREA
R/W
R/W
LONGCURV
SCAN
Page 21
R/W
R/W