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Interface slow memory(FRAM)  with TS201 on host bus

Question asked by srikanta on Nov 29, 2011
Latest reply on Dec 8, 2011 by jeyanthi.jegadeesan

  I want to interface a memory with high access time with TS201 which is connected to I/O bus (external memory interface). I have kept TS201 in default configuration and DSP is working at 600Mhz. I/O bus is running at 120Mhz. We have configured SYSCON for memory bank 0  as  our desired address space. A FRAM with access time of 110ns is connected  to this memory bank.

As FRAM is very slow compared to IO interface so we configured SYSCON to use 3 wait cycles for this memory bank. But then also  we are not able to read/write from/to memory. Is there any way to increase the number of wait cycles or to increase the read/write cycle time in order to access alow devices.