gl848 Genesys Logic, gl848 Datasheet - Page 39

• 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 44h ……..……..…………..………..………..….………..….…..…….…. Default value = 8’h00
Offset 45h
Offset 46h
Offset 47h
Offset 48h ……..……..…………..………..………..….………..….…..…….…. Default value = 8’h00
Offset 49h ……..……..…………..………..………..….………..….…..…….…. Default value = 8’h00
7-0
7-0
7-1 RESERVED
7-0
7-5 RESERVED
4-0 FEDCNT [20:16] Steps number which motor has moved.
FEDCNT15 FEDCNT14 FEDCNT13 FEDCNT12 FEDCNT11 FEDCNT10 FEDCNT9 FEDCNT8
VALIDWORD
VALIDWORD
7-0
FERDDATA7 FERDDATA6 FERDDATA5 FERDDATA4 FERDDATA3 FERDDATA2 FERDDATA1 FERDDATA0
0 FERDDATA [8] This port is for designers to read control register from front-end.
VALIDWORD
[23:16]
VALIDWORD
[15:8]
VALIDWORD
[7:0]
FERDDATA [7:0]
15
R
R
X
X
R
X
X
R
7
GL848 High Speed USB2.0 2-in-1 Scanner Controller With Fast ADF
VALIDWORD
VALIDWORD
14
X
X
X
X
R
R
R
R
6
The available image data stored in SDRAM for host to read.
The unit is in word.
The available image data stored in SDRAM for host to read.
The unit is in word.
The available image data stored in SDRAM for host to read.
The unit is in word.
-
This port is for designers to read control register from front-end.
-
For example, after setting the moving steps number (Reg 3D, 3E 3F) and
execute the moving command (Reg 0F), designers can get steps number which
has been moved via these registers. It can be reset to zero by CLRMCNT
command.
The unit is in quarter step.
VALIDWORD
VALIDWORD
13
R
R
X
X
R
X
X
R
5
FEDCNT20 FEDCNT19 FEDCNT18 FEDCNT17 FEDCNT16
VALIDWORD
VALIDWORD
12
R
R
X
X
R
R
R
4
VALIDWORD
VALIDWORD
11
X
X
R
R
R
R
R
3
VALIDWORD
VALIDWORD
10
R
R
X
X
R
R
R
2
VALIDWORD
VALIDWORD
R
R
X
X
R
R
R
9
1
VALIDWORD
VALIDWORD
FERDDATA8
Page 39
R
R
R
R
R
R
8
0