SAM7X128_14 Datasheet, PDF (156/662 Pages) ATMEL Corporation – ARM-based Flash MCU

23.7.7 General Interrupt Mask
The AIC features a General Interrupt Mask bit to prevent interrupts from reaching the processor. Both the nIRQ and the
nFIQ lines are driven to their inactive state if the bit GMSK in AIC_DCR (Debug Control Register) is set. However, this
mask does not prevent waking up the processor if it has entered Idle Mode. This function facilitates synchronizing the
processor on a next event and, as soon as the event occurs, performs subsequent operations without having to handle
an interrupt. It is strongly recommended to use this mask with caution.
SAM7X Series [DATASHEET]
6120K–ATARM–11-Feb-14
156