[usb] usb clarifications

[Ravi Kumar <ravikumar_vlsi@yahoo.co.in>]

hi all,
In USB .
Consider the OUT transaction ,
will the host controller 
sends the data to all the devices in broadcast or 
will it  select particular hub where the devices is
anchored & send the data to that particular hub .

Pls reply
Regards
Ravikumar




 --- govindsrajan@hotmail.com wrote: > Hi,
> 
>    During an enumeration process, what should be the
> address value in 
>    the Setup Token. Is it always "zero" or the
> address value of the device
>    which is being sent in "Set Address" command in
> the data phase?
> 
>    SetUp Token (Sync,Pid,Addr,Endp,crc5,Eop) ; Addr
> = 0 /  [1-128] ?
>    Data            (Sync,Pid,Data0,crc16,Eop);  //
> Data0 has the command
> 
>    If I change the address of a device, what is the
> address value in the
>    Setup Token. Is it zero or the old value?
> 
>    A quick reply is appreciated.
> 
>    Thanks
>    Govind
> --
> To unsubscribe from usb mailing list please visit
http://www.opencores.org/mailinglists.shtml 

________________________________________________________________________
Everything you always wanted to know about cars and bikes,now
 at: http://in.autos.yahoo.com
--
To unsubscribe from usb mailing list please visit http://www.opencores.org/mailinglists.shtml