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GL848 Datasheet(PDF) 38 Page - GENESYS LOGIC

Part # GL848
Description  High Speed USB 2.0
PDF  85 Pages
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Manufacturer  GENESYS [GENESYS LOGIC]
Direct Link  http://www.genesyslogic.com
Logo GENESYS - GENESYS LOGIC

GL848 Datasheet(HTML) 38 Page - GENESYS LOGIC

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GL848 High Speed USB2.0 2-in-1 Scanner Controller With Fast ADF
©2000-2007 Genesys Logic Inc. - All rights reserved.
Page 38
7 DOCSNR
Respond to document sensor status for ADF function.
6 ADFSNR
Respond to ADF sensor status for ADF function.
5 COVERSNR
Respond to cover sensor status for ADF function.
4 CHKVER
It is fixed to ‘1’ to indicate that the value in Reg00 is valid.
3 DOCJAM
Respond to document feeding status for ADF function.
0
No jam happened.
1
Document jammed.
2 HISPDFLG
0
Motor is not in high-speed moving.
1
Motor is in high-speed moving.
1 MOTMFLG
0
Motor is stop.
1
Motor is moving.
0 DATAENB
0
Scanner is in command mode. Designers can access other data in SDRAM
rather than image data.
1
Scanner is in scanning mode. Designers can only read the image data.
Offset 41h
PWRBIT
BUFEMPTY
FEEDFSH
SCANFSH HOMESNR LAMPSTS
FEBUSY
MOTORENB
R
R
R
R
R
R
R
R
7 PWRBIT
To indicate power status. If it is reset, the power had been turned off.
Power on initial process will set PWRBIT to 0. This bit will have the same value
as bit 4 of Reg06 except for it’s read only.
6 BUFEMPTY
0
The image buffer is not empty.
1
The image buffer is empty.
5 FEEDFSH
0
Motor feeding is not finished.
1
Motor feeding is finished.
4 SCANFSH
0
Scanning is not finished.
1
Scanning is finished.
3 HOMESNR
0
Home sensor is on (is not located in home position).
1
Home sensor is off (located in home position).
2 LAMPSTS
0
Lamp is off.
1
Llamp is on.
1 FEBUSY
0
Front end is ready for read/write operations.
1
Front end is busy and can not perform read/write operations.
0 MOTORENB
0
Motor is not operation.
1
Motor is operation.
Offset 42h ……..……..…………..………..………..….………..….…..…….…. Default value = 8’h00
X
X
X
X
X
X
VALIDWORD
25
VALIDWORD
24
X
X
X
X
X
X
R
R
1-0 VALIDWORD
The available image data stored in SDRAM for host to read.
[25:24]
The unit is in word.
Offset 43h ……..……..…………..………..………..….………..….…..…….…. Default value = 8’h00
VALIDWORD
23
VALIDWORD
22
VALIDWORD
21
VALIDWORD
20
VALIDWORD
19
VALIDWORD
18
VALIDWORD
17
VALIDWORD
16
R
R
R
R
R
R
R
R



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