which power domain belongs the L2 SRAM to, VDD_INT or VDD_EXT?
How can I estimate the power consumption when running from L2 (code+data, ASF=1.0)?
The L2 SRAM is in the VDD_INT power domain and the SYSCLK clock domain. Do you have cache enabled? If so, you should see that ASF=1.0 is about right for your situation. There is now an FAQ here describing how to estimate BF70x power:
Where can I find power consumption data for BF70x processors?
We do not have plans to enable the cache, but we may consider this alternative.
I definitely recommend enabling L1 instruction cache rather than executing directly from L2. The processor is designed to perform best when executing directly from L1 or from instructions cached in L1. Direct execution from L2 or L3 without cache enabled tends to yield much lower performance.
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