AT91SAM7S64C-AU View Datasheet(PDF) - Atmel Corporation

Part Name

Description

Manufacturer

AT91SAM7S64C-AU

AT91SAM ARM-based Flash MCU

Atmel Corporation 

enable an as fast as possible return to the normal execution flow. This handler writes in AIC_EOICR and performs

a return from interrupt.

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.

SAM7S Series [DATASHEET]

6175M–ATARM–26-Oct-12

174

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