USB3280 SMSC Corporation, USB3280 Datasheet - Page 7

• Manufacturer Part Number: USB3280
• Description: Hi-Speed USB Device PHY
• Manufacturer: SMSC Corporation

Hi-Speed USB Device PHY with UTMI Interface
Datasheet
Chapter 2 Functional Block Diagram
SMSC USB3280
TXVALID
SUSPENDN
TERMSELECT
CLKOUT
LINESTATE[1:0]
XCVRSELECT
RESET
Control
PWR
Figure 2.1 USB3280 Block Diagram
Regulator
1.8V
Conversion
Conversion
Parallel to
Bit Stuff
Bit Unstuff
Machine
Serial to
RX State
TX State
Decode
LOGIC
Encode
LOGIC
Parallel
Serial
NRZI
Machine
NRZI
Bandgap Voltage Reference
TX
RX
DATASHEET
Current Reference
BIASING
7
Recovery Unit
Recovery
Elasticity
XTAL OSC
Buffer
HS_DRIVE_ENABLE
Clock
Clock
and
Data
PLL and
HS_CS_ENABLE
VM
HS_DATA
VP
RPU_EN
VMO
VPO
OEB
HS RX
FS SE-
FS SE+
HS SQ
FS RX
1.5kΩ
TX
FS
HS
TX
R
X
TX
Clocking
System
Revision 1.2 (10-27-06)
DP
DM