TI c6416 instruction cycle time(when using profile function in CCS2.2)

Please consider upgrading to a newer release of CCS. You can download a free trial of CCSv4 to see if it might fit your requirements.

The profiler will report clock cycle counts (same as instruction cycle counts, I believe). The clock cycle period will depend on the speed that you run the device, not on the rated speed of the device. For example, you could use a 1 GHz C6416 and run it at 500 MHz, then the clock cycle period would be 2 ns. If you use a 720 MHz C6416, then the fastest you can run it is 720 MHz, which would be the 1.39 ns cycle time that you have mentioned.

wqyhandsome said:

1,I have checked the FAQ about the profile and no gotten the exact number. What I know by now is from the datasheet:SPRS146L(about the c6414/c6415/c6416). In its fist page, there is a saying that the C6416 performs at 1.39-ns instruction cycle time(720MHz clock rate). Therfore, I need to setup the instruction cycle time in 1.39ns, am I right?

If the CCS 2.2 profiler has a place to state the instruction cycle time in ns, then you would be correct to setup the profiler to use 1.39 ns if that is the speed that you will be running the C6416. But since I do not have the CCS 2.2 profiler available to me now, I am not very sure what you are trying to do. You do have the correct understanding of the inttruction cycle time.

wqyhandsome said:

2,I also found that the C6416 can perform at 1Giga Hz , and 8000MIPs max; can I think the number(1Giga Hz,8000MIPs) is its limitation and not proper for CCS profile/clock set up/instruction cycle time?

If you choose to run the C6416 at 1 GHz, then 1 ns would be the instruction cycle time.