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MCF5301X Drive strength settings

Question asked by Paul Arnold on Apr 27, 2014
Latest reply on Jun 17, 2014 by Paul Arnold



We've just been reviewing the processor configuration on our board using the 53014.

According to the datasheet the drive strength of various flexbus signals can be set.

The strength is set by 3 bits as follows :

000 Half strength 1.8V mobile DDR

001 Full strength 1.8V mobile DDR

011 2.5V DDR1

111 3.3V SDR

All other values are reserved.


On reset the default settings for these signals is 110 which falls in the reserved area.


Does anyone know what the actual drive would be when set to 110 as I can't find any reference to that setting other than saying it's reserved.