gl848 Genesys Logic, gl848 Datasheet - Page 26

• 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 0Ch …………………………………………..…………..……..………. Default value = 8’h00
Offset 0Dh
Offset 0Eh
Offset 0Fh
Offset 10h …………………………………………..…………..……..…………. Default value = 8’h00
7-4 Reserved
7-0 EXPR [15:8]
3-0 CCDLMT [3:0] To set the lines count which is synchronized for CCD timing(like NEC8884).
Command: Scanner command.
3 SEND
2 CLRMCNT
1 CLRDOCJM
0 CLRLNCNT
Command: Scanner software reset.
Note: In normal condition, it is unnecessary to reset scanner unless the scanner is out of control.
Command: Motor moving.
Note: It cannot be programmed to logic zero.
4 FULLSTP
EXPR15
R/W
X
X
X
X
Note: 1.For each scanning, designers must clear SCANCNT before starting process.
GL848 High Speed USB2.0 2-in-1 Scanner Controller With Fast ADF
2.They are write-one commands.
It can initiate AISC system including lamp and motor, control registers, internal circuit;
but not including tables in DRAM, like gamma table, shading table and
acceleration/deceleration table.
Start motor forward/backward moving.
EXPR14
R/W
X
X
X
X
To reset steps type to full step.
To clear FEDCNT(Reg48,Reg49,Reg4A) counter information.
111 Reserved.
-
To send the RS232 data.
To clear document jam message for ADF module.
To clear SCANCNT (Reg4B,Reg4C,Reg4D).
Exposure time setting (in pixel time) for Red-LED of CIS or Red channel of CCD.
EXPR13
R/W
X
X
X
X
FULLSTP
EXPR12
R/W
W
X
X
SCANRESET
MOVE
W
W
CCDLMT3 CCDLMT2 CCDLMT1 CCDLMT0
EXPR11
SEND
R/W
R/W
W
CLRMCNT
EXPR10
R/W
R/W
W
CLRDOCJM
EXPR9
R/W
R/W
W
CLRLNCNT
EXPR8
Page 26
R/W
R/W
W