Jack Deng

MCF5216 internal flash security and internal SRAM addressing

Discussion created by Jack Deng on Oct 12, 2007
Latest reply on Nov 26, 2009 by Sergio Ninotti
Hi, I need urgent help here.
 
we use internal flash for all the code also need to adress external SRAM and other peripheral devices residing on external bus port.
 
I need to secure the internal flash to protect the code and then realized the external SRAM and other devices on data bus.
 
contact tech support and the reply through email is that it can be done. I was told that after the single chip mode boot up, I need to configure the bus pins from GPIO back to primary function. However I cannot find any way to configure the address pins back to primary function as there are no Port-H, Port-G pin assignemnt registers.
 
thanks.
 
 

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