AU6254 Datasheet, PDF (15/30 Pages) List of Unclassifed Manufacturers – USB2.0 Hub Controller

4.0 System Architecture and
Reference Design
4.1 AU6254 Block Diagram
Figure4.1 AU6254 Block Diagram
Upstream
USB Data
SUSPEND
LED
Bus_PWREDN
Gangbus_pwred
Upstream
PHY
HS
HS
TPX
FS
SIE
3.3V
1.8V
Regulator
TT
Routing Logic
Controller
Port
Controller
Serial
Interface
E2PDAT
To EEPROM
EEPENABLE
E2PCLK
DLL
DLL
Elasticity HS TPX FS
buffer HS
Port #1
Over Current
Sense
…
Elasticity HS TPX FS
buffer HS
Port #4
Over Current
Sense
PLL
Downstream
LED Drivers
Downstream
LED Drivers
PHY #1
PHY #4
12MHz
Crystal
Downstream
USB Data
Over
current
detect
LED
Drivers
PWRUP
Downstream
USB Data
over
current
detect
LED
Drivers
PWRUP
AU6254 USB2.0 Hub Controller V1.00W
Official Release_ Public
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