Philips Semiconductors Product specification
PDIUSBH12USB 2-port hub
1999 Jul 22 10
COMMAND SUMMARY
Some commands have the same command code (e.g., Read Buffer and Write Buffer). In these cases, the direction of the Data Phase (read or
write) indicates which command is executed.
COMMAND NAME RECIPIENT CODING DATA PHASE
Initialization Commands
Set Address / Enable Hub D0h Write 1 byte
Embedded Function 1 D1h Write 1 byte
Embedded Function 6 D2h Write 1 byte
Embedded Function 7 D3h Write 1 byte
Set Endpoint Enable Hub + Embedded Functions D8h Write 1 byte
Set Mode Hub + Embedded Functions F3h Write 2 bytes
Data Flow Commands
Read Interrupt Register F4h Read 2 bytes
Select Endpoint Hub Control OUT 00h Read 1 byte (optional)
Hub Control IN 01h Read 1 byte (optional)
Other Endpoints 00h + Endpoint Index Read 1 byte (optional)
Read Last Transaction Status Hub Control OUT 40h Read 1 byte
Hub Control IN 41h Read 1 byte
Other Endpoints 40h + Endpoint Index Read 1 byte
Read Endpoint Status Hub Control OUT 80h Read 1 byte
Hub Control IN 81h Read 1 byte
Other Endpoints 80h + Endpoint Index Read 1 byte
Read Buffer Selected Endpoint F0h Read n bytes
Write Buffer Selected Endpoint F0h Write n bytes
Set Endpoint Status Hub Control OUT 40h Write 1 byte
Hub Control IN 41h Write 1 byte
Other Endpoints 40h + Endpoint Index Write 1 byte
Acknowledge Setup Selected Endpoint F1h None
Clear Buffer Selected Endpoint F2h None
Validate Buffer Selected Endpoint FA h None
Hub Commands
Clear Port Feature Port 2 E0h Write 1 byte
Port 3 E1h Write 1 byte
Set Port Feature Port 2 E8h Write 1 byte
Port 3 E9h Write 1 byte
Get Port Status Port 2 E0h Read 1 or 2 bytes
Port 3 E1h Read 1 or 2 bytes
Set Status Change Bits F7h Write 1 byte
General Commands
Send Resume F6h None
Read Current Frame Number F5h Read 1 or 2 bytes