SMSC USB2512i - Manual (Page 7)

Industrial Temperature Rated USB 2.0 High-Speed 2-Port Hub Controller
Datasheet
SMSC USB2512i 7 Revision 1.92 (11-28-07)
DATASHEET
Chapter 2 Block Diagram
Figure 2.1 USB2512i Block Diagram
To U pstream
V
B U S
3.3V
U p stream
P H Y
U pstream U S B
D ata
R ep eater
C o ntroller
S IE
S erial
In terface
P LL
24 M H z C rystal
T o E E P R O M or
S M B us M aster
R o uting & P ort R e -O rd ering Log ic
S C K S D
T T
P o rt
C ontroller
B us -P o w er
D etect/V
B U S
P ulse
1.8 V
1.8V R eg
P H Y #1
P ort #1
O C
S en se
S w itch
D river
LE D
D rivers
P H Y #2
P ort #2
O C
S ense
S w itch
D river
L E D
D rivers
U S B D ata
D ow nstream
O C S ense
S w itch/LE D
D rivers
U S B D ata
D ow nstream
O C S ense
S w itch/LE D
D rivers