USB 2.0 High-Speed 4-Port Hub Controller
Datasheet
Chapter 2 Block Diagram
To Upstream
VBUS
Upstream USB
Data
To EEPROM or
SMBus Master
24 MHz Crystal
SD SCK
3.3V
1.8V
PLL
Serial
Bus-Power
Detect/VBUS
Pulse
Interface
Upstream
PHY
1.8V Reg
SIE
Controller
Repeater
Port
Controller
TT #1
TT #2
TT #3
TT #4
Routing & Port Re-Ordering Logic
Port #1
OC
Port #2
OC
Port #3
Port #4
OC
OC
Sense
Sense
Switch
Driver
LED
Sense
Switch
Driver
LED
Sense
Switch
Driver
LED
PHY#1
PHY#2
PHY#3
PHY#4
Switch
Driver
LED
Drivers
Drivers
Drivers
Drivers
OC Sense
Switch/LED
Drivers
OC Sense
Switch/LED
Drivers
OC Sense
Switch/LED
Drivers
OC Sense
Switch/LED
Drivers
USB Data
Downstream
USB Data
Downstream
USB Data
Downstream
USB Data
Downstream
Figure 2.1 USB2514 Block Diagram
Revision 1.92 (05-08-07)
8
SMSC USB2514
DATASHEET
SMSC [ SMSC CORPORATION ]
