81
6174B–ATARM–07-Nov-05
AT91FR40162S Preliminary
rupt to whatever was being executed before, and of loading the CPSR with the SPSR,
masking or unmasking the fast interrupt depending on the state saved in the SPSR.
The F bit in the SPSR is significant. If it is set, it indicates that the ARM core was just about to mask FIQ
interrupts when the mask instruction was interrupted. Hence when the SPSR is restored, the interrupted
instruction is completed (FIQ is masked).
Содержание AT91FR40162S
Страница 180: ...180 6174B ATARM 07 Nov 05 AT91FR40162S Preliminary Figure 19 2 MCKO Relative to NRST NRST tD MCKO...
Страница 195: ...195 6174B ATARM 07 Nov 05 AT91FR40162S Preliminary 20 5 2 CE Controlled Figure 20 15 CE Controlled...
Страница 204: ...204 6174B ATARM 07 Nov 05 AT91FR40162S Preliminary 23 AT91FR40162S Errata There is no known errata for the AT91FR40162S...