AU9254_05 Datasheet, PDF (10/23 Pages) List of Unclassifed Manufacturers – USB Hub Controller

4.0 System Architecture and
Reference Design
4.1 AU9254 Block Diagram
Figure4.1 AU9254 Block Diagram
ROOT PORT
XCVR
USB
SIE
COMMAND
PROCESSOR
SUSPEND,
RESUME AND
FRAME TIMER
HUB
REPEATER
PORT
CONTROL
3.3V
VOLTAGE
3.3V
REGULATOR
4X PLL
XCVR
DESC.
ROM
.....
PORT
CONTROL
XCVR
12 MHz
PORT 1
.....
PORT 4
AU9254 USB Hub Controller V1.02W
Official Release_ Public
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