USB3250 Standard Microsystems Corporation, USB3250 Datasheet - Page 7

• Manufacturer Part Number: USB3250
• Description: Usb2.0 PHY IC
• Manufacturer: Standard Microsystems Corporation

USB2.0 PHY IC
Datasheet
Chapter 2 Functional Block Diagram
SMSC GT3200, SMSC USB3250
TXVALID
DATABUS16_8
RXACTIVE
RESET
XCVRSELECT
TERMSELECT
LINESTATE[1:0]
SUSPENDN
CLKOUT
Note: See
Section 7.1, "Modes of Operation," on page 23
CONTROL
PWR
Figure 2.1 Block Diagram
Conversion
Conversion
Bit Unstuff
Parallel to
LOGIC
TX State
Machine
LOGIC
Bit Stuff
RX State
Encode
Machine
Serial to
Parallel
Decode
Serial
NRZI
NRZI
Bandgap Voltage Reference
RX
TX
DATASHEET
Current Reference
BIASING
7
Recovery Unit
Recovery
Elasticity
Buffer
Clock
Clock
XTAL OSC
HS_DRIVE_ENABLE
Data
and
HS_CS_ENABLE
PLL and
HS_DATA
RPU_EN
VM
VP
VPO
VMO
OEB
for a description of the digital interface.
FS SE+
HS RX
FS SE-
FS RX
HS SQ
FS TX
HS TX
1.5kΩ
RX
TX
Clocking
System
Revision 1.5 (03-24-06)
DM
DP