USB3250 Datasheet, PDF (5/46 Pages) Microchip Technology – Hi-Speed USB Device Transceiver with UTMI Interface

2.0 FUNCTIONAL BLOCK DIAGRAM
FIGURE 2-1:
BLOCK DIAGRAM
USB3250
PWR
CONTROL
PLL and
XTAL OSC
System
Clocking
DATABUS16_8
RESET
SUSPENDN
XCVRSELECT
TERMSELECT
OPMODE[1:0]
LINESTATE[1:0]
CLKOUT
DATA[15:0] *
TXVALID
TXREADY
VALIDH
RXVALID
RXACTIVE
RXERROR
TX
LOGIC
TX State
Machine
Parallel to
Serial
Conversion
RPU_EN
VPO
VMO
OEB
TX
1.5k 
FS
TX
Bit Stuff
HS_DATA
HS_DRIVE_ENABLE
HS
NRZ
HS_CS_ENABLE
TX
Encode
DP
RX
DM
RX
LOGIC
FS
SE+
RX State
VP
Machine
VM
FS
SE-
Serial to
Parallel
Clock
Conversion
Recovery Unit
Clock
FS
Bit Unstuff
and
RX
NRZI
Decode
Data
Recovery
Elasticity
Buffer
HS
RX
BIASING
HS
SQ
Bandgap Voltage Reference
Current Reference
Note: See Section 7.1, "Modes of Operation," on page 19 for a description of the digital interface.
 2013 - 2016 Microchip Technology Inc.
DS00002142A-page 5