some questions about pulpissimo L1 memory

[jsen_che11]

Hello, this is my first time working with PULPissimo for my research group’s project, and I’ve encountered some questions during its use:

1. Why does PULPissimo seem to lack an L1 cache?
   
2. If both data and instructions rely on the L2 cache for caching, wouldn’t that lead to potential conflicts?
   

Additionally, I’ve noticed that other PULP platforms seem to include an L1 cache. Could you explain the reasoning behind this design choice in PULPissimo? If there are any misunderstandings in my interpretation, I’d greatly appreciate it if you could point them out. Thank you very much!