Datasheet
Chapter 2 Functional Block Diagram
RESET
SUSPENDN
XCVRSELECT
TERMSELECT
OPMODE[1:0]
LINESTATE[1:0]
CLKOUT
DATA[7:0]
TXVALID
TXREADY
RXVALID
RXACTIVE
RXERROR
3.VDD3
PWR
Control
Interface
UTMI
XI |
| XO |
|
|
|
1.8V | PLL and |
| System |
|
Regulator | XTAL OSC |
| Clocking |
|
TX |
|
| TX |
|
LOGIC |
|
|
| |
RPU_EN |
|
|
| |
|
|
|
| |
TX State | VPO |
| 1.5kΩ |
|
|
|
| ||
Machine |
|
|
| |
|
|
|
| |
Parallel to | VMO |
| FS |
|
|
|
| ||
Serial | OEB |
| TX |
|
Conversion |
|
|
|
|
Bit Stuff | HS_DATA |
|
| |
HS_DRIVE_ENABLE |
|
| ||
| HS |
| ||
NRZI | HS_CS_ENABLE |
| ||
TX |
| |||
Encode |
|
|
|
|
|
|
|
| DP |
|
|
| R | DM |
|
|
| X |
|
RX |
|
|
|
|
LOGIC |
|
| FS SE+ |
|
RX State | VP |
|
|
|
VM |
|
|
| |
Machine |
| FS SE- |
| |
|
|
|
| |
Serial to | Clock |
|
|
|
Parallel | Recovery Unit |
|
|
|
Conversion |
|
|
| |
|
|
|
| |
Bit Unstuff | Clock |
| FS RX |
|
and |
|
| ||
|
|
| ||
Decode | Data | MUX |
|
|
NRZI | Recovery |
|
|
|
| Elasticity |
| HS RX |
|
| Buffer |
|
| |
|
|
|
| |
BIASING
HS SQ
Bandgap Voltage Reference
Current Reference
RBIAS
Figure 2.1 USB3280 Block Diagram
SMSC USB3280 | 7 | Revision 1.5 |
| DATASHEET |
|