Atmel SAM4L Xplained Pro Starter Kit Atmel ATSAM4L-XSTK ATSAM4L-XSTK Data Sheet

42023E–SAM–07/2013

This bit is cleared when the UDINTCLR.SUSPC bit is written to one to acknowledge the interrupt.

This bit is set when a USB “Suspend” idle bus state has been detected for 3 frame periods (J state for 3 ms). This triggers a 

USB interrupt if SUSPE is one.