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Burst memory accesses in MPC55xx/e200z6

Question asked by Ricardo Franca on Feb 15, 2013
Latest reply on Mar 11, 2013 by Ricardo Franca

Hello,

 

Although I am thinking about the MPC5554, I suppose my (beginner's!) question should apply to other microcontroller/microprocessor models that can perform burst accesses to external memories.

When I access external memory in burst mode, does the processor wait the whole burst to finish (e.g. 3+1+1+1 cycles) before using the retrieved data or it continues executing instructions as soon as the data that was actually meant to be loaded is read?

 

Thanks!

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