I have seen that enabling write-back cache on Blackfin can greatly improve the performance of code.
Is it possible to enable write-back cache on SHARC 21469 as well? If so, how?
Regarding “Is it possible to enable write-back cache on SHARC 21469 as well? If so, how?”
>> ADSP-21469 processor as such has no configurability to enable or disable the write back caches.
The cache on this processor is enhanced to serve as an instruction cache in external instruction fetch operation, apart from caching only those instruction whose fetching conflicted with access of data operand from internal memory over PM bus. Every instruction that is fetched from the external memory into the program sequence is simultaneously loaded into the cache. This allows for an instruction throughput that is equivalent to internal memory execution.
For more information, you can also refer to page 178/1276 of the ADSP-214xx Hardware Reference Manual, the link for which is given below:
Please let me know in case you have any further.
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