AT91SAM7S64: flash programming

Hello,

Reading the SAM7 datasheet's chapter on embedded flash I ran across this
snippet:

"Access to the Flash in read mode is permitted when a Lock or Unlock command
is performed
...
Access to the Flash in read mode is permitted when a Set, Clear or Get
General-purpose NVM bit cmmand is performed"

Does this imply that:
1) C-functions implementing Lock/Unlock/Set/Clear do not need to be run from
RAM (in terms of IAR such functions should not be prefixed with "__ramfunc"
keyword)?
2) interrupts can be left untouched (i.e. no need to disable interrupts
flash before operation and enable them back after) ?

Thanks.

-- 
Best regards, Roman 

Op Wed, 04 Jun 2008 17:42:57 +0200 schreef Roman Mashak <mrv@tusur.ru>:
> Reading the SAM7 datasheet's chapter on embedded flash I ran across this
> snippet:
>
> "Access to the Flash in read mode is permitted when a Lock or Unlock  
> command
> is performed
> ...
> Access to the Flash in read mode is permitted when a Set, Clear or Get
> General-purpose NVM bit cmmand is performed"
>
> Does this imply that:
> 1) C-functions implementing Lock/Unlock/Set/Clear do not need to be run  
> from
> RAM (in terms of IAR such functions should not be prefixed with  
> "__ramfunc"
> keyword)?
> 2) interrupts can be left untouched (i.e. no need to disable interrupts
> flash before operation and enable them back after) ?

3) Access to the Flash in read mode is permitted regardless of the setting  
of the Lock or NVM bits.


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