TMS570 Code execution from External Memory

Vinaykumar,

Most microcontrollers are designed to run from internal memory. The on-chip FLASH has high bandwidth compared to external memory and this is an $$ attribute relative to putting a tiny cache and an interface to external DRAM. So you might be picking the wrong part if external memory is most important to you.

If you want a device that runs code from external memory - and that is a *primary* consideration - you probably should look
at a device like a Sitara www.ti.com/.../overview.page

Otherwise, if you need 570 for some primary reason but need to execute from external memory - the TMS570LC4357 with instruction cache is your best option. But note the external memory doesn't get ECC protection like the on chip memories so this is defeating some of the value of the 570...