Datasheet

115
32142D–06/2013
ATUC64/128/256L3/4U
SUSP: Suspend Interrupt
This bit is cleared when the UDINTCLR.SUSPC bit is written to one to acknowledge the interrupt or when the Wakeup
(WAKEUP) interrupt bit is set.
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.