gl845 Genesys Logic, gl845 Datasheet - Page 38

• Manufacturer Part Number: gl845
• Description: High Speed Usb 2.0 2-in-1 Scanner Controller With Adf
• Manufacturer: Genesys Logic

©2000-2007 Genesys Logic Inc. - All rights reserved.
Offset 22h ……..……………………………………..…………..….…..…….…. Default value = 8’h00
Offset 23h ……..……………………………………..…………..….…..…….…. Default value = 8’h00
Offset 24h ……..……………………………………..…………..….…..…….…. Default value = 8’h00
Offset 25h ……..……………………………………..…………..….…..…….…. Default value = 8’h00
FWDSTEP7 FWDSTEP6 FWDSTEP5 FWDSTEP4 FWDSTEP3 FWDSTEP2 FWDSTEP1 FWDSTEP0
7-0 STEPNO [7:0] Steps number of “table one” for the acceleration/deceleration of scanning moving.
7-0 FWDSTEP [7:0] Steps number for forward moving when buffer condition is met.
7-0 BWDSTEP [7:0] Steps number for backward moving when image buffer is full.
7-0 FASTNO [7:0] Steps number of “table two” for the acceleration/deceleration when image buffer
BWDSTEP7 BWDSTEP6 BWDSTEP5 BWDSTEP4 BWDSTEP3 BWDSTEP2 BWDSTEP1 BWDSTEP0
FASTNO7 FASTNO6 FASTNO5 FASTNO4 FASTNO3 FASTNO2 FASTNO1 FASTNO0
R/W
R/W
R/W
X
Speed
GL845 High Speed USB2.0 2-in-1 Scanner Controller With ADF
R/W
R/W
R/W
X
Please refer to section 6.19 and the descriptions of Reg24 & Reg6A.
Note: 1.It cannot be programmed to logic zero.
Please refer to section 6.19 and the descriptions of Reg20 & Reg24.
Note: 1.It cannot be programmed to logic zero.
Please refer to section 6.19 and the descriptions of Reg24.
Note: 1.It cannot be programmed to logic zero.
is full.
Please refer to section 6.19 and the descriptions of Reg20.
Note: It cannot be programmed to logic zero.
Reg21
2.it can be multiplied by2*
2.it can be multiplied by2*
2.it can be multiplied by2*
R/W
R/W
R/W
Reg24
X
R/W
R/W
R/W
X
Reg22
Reg23
Buffer full position
LINCNT19 LINCNT18 LINCNT17 LINCNT16
STEPTIM
STEPTIM
STEPTIM
R/W
R/W
R/W
Reg24
Reg21
R/W
R/W
R/W
R/W
R/W
R/W
Time
Page 38
R/W
R/W
R/W