USB 2.0 Hi-Speed 2-Port Hub Controller
Datasheet
SMSC USB2512A
7
Revision 1.96 (07-11-08)
DATASHEET
Chapter 2 Block Diagram
Figure 2.1 USB2512A Block Diagram
T o U p s tre a m
V
B U S
3 .3 V
U p s tre a m
P H Y
U p s tre a m U S B
D a ta
R e p e a te r
C o n tro lle r
S IE
S e ria l
In te rfa c e
P L L
2 4 M H z C ry s ta l
T o E E P R O M o r
S M B u s M a s te r
R o u tin g & P o rt R e -O rd e rin g L o g ic
S C K
S D
T T
P o rt
C o n tro lle r
B u s -P o w e r
D e te c t/V
B U S
P u ls e
1 .8 V
1 .8 V R e g
P H Y # 1
P o rt # 1
O C
S e n s e
S w itc h
D riv e r
L E D
D riv e rs
P H Y # 2
P o rt # 2
O C
S e n s e
S w itc h
D riv e r
L E D
D riv e rs
U S B D a ta
D o w n stre a m
O C S e n se
S w itch /L E D
D rive rs
U S B D a ta
D o w n stre a m
O C S e n se
S w itch /L E D
D rive rs
