USB 2.0 Hi-Speed 2-Port Hub Controller
Datasheet
1.1
Block Diagram
Figure 1.1 details the internal block diagram of the USB2532.
Up or
Downstream
To I2C Master/Slave
SDA SCL
VDDA33
VDDA33
USB
RESET_N
VDDA33
VDDCR12
Serial
Interface
1.2V Reg
3.3V Reg
Flex PHY
Repeater
SIE
Controller
TT #1 TT #2 TT #3
Port Controller
2KB
DP
SRAM
UDC
20
Port Power
OCS
Bridge
Routing & Port Re-Ordering Logic
GPIO
GPIO
256B
IRAM
8051
Controller
Swap PHY
PHY
2KB
OTP
4KB
SRAM ROM
32KB
USB
USB
Down or Downstream
Upstream
Figure 1.1 System Block Diagram
Revision 1.0 (06-17-13)
8
SMSC USB2532
DATASHEET