How to know if the data on the bus is a data or an instruction for an ARM Cortex-M0?
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03-07-2021 - |
Question
I'm trying to implement a caching algorithm. But I want to cache only the Instructions, and not the data fetched from the memory(obviously). So how do I know that the data on the bus is a Data data or an Instruction data? I tried looking at the HPROT and HTRANS signals, but couldn't get any clarity
Solution
Figured it out HPROT[0] tells u if its a data or an opcode fetch
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