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TMS320F28379D: TMS320F28379D CPU & CLA REAL MIPS Running an Application from Internal Flash Memory

Fa Pa
Prodigy 10 points
Part Number: TMS320F28379D

Hi experts,

For my next project I need to know the real MIPS when application is running with 200Mhz clock from internal flash both for CPU & CLA,

as per www.ti.com/lit/an/spra958l/spra958l.pdf   (dated 2013, 5 years ago) with @150Mhz clock uC can achive 90 - 95 MIPS 

Now i need the same updated values for 200Mhz clock with the new TMS320F28379D flash tecnology.

  • 0
    TI__Guru* 77460 points

    Fa,

    Thanks for reaching out to the forum.  There are 2 key differences between the Flash architectures in the F2837x devices vs the ones in the Application Report you have referenced:

    1)0 Wait State access time

    2)Prefech Buffer Depth

    Just to keep things simple I'm going to use the F2833x as the baseline "previous gen" device for comparison.  All of the below are documented in the respective DS, except for the approx speed; since this is based on some assumptions of 16-bit/32-bit code use and typical control code continuities

    Device Max CPU Speed 0 WS Max Flash Speed WS at max CPU speed Pretech buffer depth Approx Flash speed 
    F2833x 150MHz 27MHz 5 64-bits ~90-95 MIPs
    F2837x 200MHz 50MHz 3 128-bits ~174-188 MIPs

    Best,
    Matthew