ARM also provides software-managed high-speed memories, which the call Tightly Coupled Memory (TCM), the common term for these is scratchpad memory (SPM) [1].

ARM also provides software-managed high-speed memories, which the call Tightly Coupled Memory (TCM), the common term for these is scratchpad memory (SPM) [1]. There is still a lot of recent research focusing on the design of SPM hardware and management approaches in the embedded and real-time/predictable systems communities. [1] https://dl.acm.org/doi/10.1145/774789.774805 https://dl.acm.org/doi/10.1145/774789.774805