Visual DSP++ 5.1 Linear Profiler: External memory accesses

I have been using the linear profiler to estimate maximum timing for some functions, and it looks like external memory such as SDRAM or SRAM do not change the cycle count.  Is there a way to measure the extra time used by these accesses?  I tried to change the memory type in the profiler properties but only Program Memory is available.

Thanks

Chuck Dickerson