USB2533 Datasheet, PDF (8/50 Pages) SMSC Corporation – USB 2.0 Hi-Speed 3-Port Hub Controller

USB 2.0 Hi-Speed 3-Port Hub Controller
Datasheet
1.1
Block Diagram
Figure 1.1 details the internal block diagram of the USB2533.
RESET_N
Up or
Downstream
USB
VDDA33
VDDA33
To I²C Master/Slave
VDDA33
SDA SCL
VDDCR12
Flex PHY
Repeater
3.3V Reg
1.2V Reg
Serial
Interface
SIE
Controller
TT #1 TT #2 TT #3 TT #4
Port Controller
Routing & Port Re-Ordering Logic Bridge
Swap PHY
PHY
PHY
UDC
20
2KB
DP
SRAM
256B
IRAM
8051
GPIO
Controller
2KB 4KB 32KB
OTP SRAM ROM
Port Power
OCS
GPIO
USB
USB
USB
Down or Downstream Downstream
Upstream
Figure 1.1 System Block Diagram
DS00001702A-page 8
 2014 Microchip Technology Inc.