OPENCORES.ORG

Hi,

Hi,
The UTMI interface is intended for USB2.0 peripherals only and
not the device/host controllers.
For details refer to http://www.usb.org/developers/onthego/      
and search for ULPI/UTMI+

Regards,
Neelabh

In UTMI specs the timing

kingfischer@r... wrote:

>Hi,
>
>I am designing a USB 2.0 Device Controller with a UTMI interface, 
>assuming that I will be purchasing a PHY Chip which is UTMI compliant.
>
>My question is about how the device knows if it is connected to the USB 
>hub/port. The answer I presume is that the device checks the V+ line 
>and if powered assumes that it is connected.
>
>In my case my device controller connects via the UTMI interface to the 
>PHY....unfortunately there is no signal comming out of the PHY which 
>signals a device connect or a power up. ( absence of ..say..power-on 
>reset).
>
>I need to know this point of device connection as I must send a reset to 
>my device logic and also reset the PHY.
>
>Another way of asking the same question would be , 
>With reference to the UTMI 1.0 Specifications on Page 52 , where does 
>the device_reset signal come from ?
>
>Hope to get some clarification.
>
>Regards
>Kingfischer.
>_______________________________________________
>http://www.opencores.org/mailman/listinfo/usb
>  
>