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CCS/OMAP-L138: 6 clock cycles for a NOP?

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Part Number:OMAP-L138

Tool/software: Code Composer Studio

TMDSLCDK138, TMS320-XDS100-V3, CCS7.4

I've got "Profile Clock <CPU Execute Cycles>" turned on in Eclipse, running code on the C674X side running at 456MHz

Single stepping and watching the CPU cycle counter, it looks like it is taking 6 clock cycles to execute a NOP.

48 cycles to execute a "NOP 8".  This seems ... excessive.

What's going on here?

Is running under the debugger slower?

Does the location of the code in memory matter?

Where can I find a memory map for the LCDK138 board?


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