GL843 GENESYS [GENESYS LOGIC], GL843 Datasheet - Page 68

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

CHAPTER 5 BLOCK DIAGRAM
5.1 USB2.0 System Block Diagram
5.2 Function Block Diagram
©2000-2006 Genesys Logic Inc. - All rights reserved.
12 MHz
Device
Driver
Motor
ADF
Host
Controller
USB2.0
GL843 High Speed USB2.0 With ADF 2-in-1 Scanner Controller For 3x
Control
Control
Motor
ADF
PLL
Host
Figure 5.1 - USB2.0 System Block Diagram
Circuit
Clk-gen
EPP
Figure 5.2 - Function Block Diagram
12 MHz
GL843
(USB2.0 Interface+Scanner
ASIC Controller)
Two-In-One Controller
Read/Writ
Interface
Register
Control
Scanner
Control
Moving
SDRAM
Motor
Table
Flow
Data
I/O Device
Correction
Packing
Packing
Gamma
Control
AFE
GPIO
Data
Line
Compression
Data
Shading, Image SDRAM
Black &
Shading
Control
White
White
Gray
True
DPI
Motor Driver
IO Device
CCD/CIS
CCD/CIS
A/D Data
Average
Shading
Control
Control
Latch
Dark
Front End
CCD/CIS
(16 Bits)
Page 68