Atmel SAM4S-XPLD Atmel ATSAM4S-XPLD ATSAM4S-XPLD Scheda Tecnica

 953

SAM4S [DATASHEET]

11100E–ATARM–24-Jul-13

0 = No UDP Resume Interrupt pending.

1 =UDP Resume Interrupt has been raised.

The USB device sets this bit when a UDP resume signal is detected at its port.

After reset, the state of this bit is undefined, the application must clear this bit by setting the RXRSM flag in the UDP_ICR register.

0 = No Start of Frame Interrupt pending.

1 = Start of Frame Interrupt has been raised.

This interrupt is raised each time a SOF token has been detected. It can be used as a synchronization signal by using

isochronous endpoints.

0 = No End of Bus Reset Interrupt pending.

1 = End of Bus Reset Interrupt has been raised.

This interrupt is raised at the end of a UDP reset sequence. The USB device must prepare to receive requests on the endpoint 0. 
The host starts the enumeration, then performs the configuration.

0 = No Wake-up Interrupt pending.

1 = A Wake-up Interrupt (USB Host Sent a RESUME or RESET) occurred since the last clear.

After reset the state of this bit is undefined, the application must clear this bit by setting the WAKEUP flag in the UDP_ICR 
register.