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However, the datasheet and TRM only mention the processor core.
I don't know, but might simply down to the person who wrote the TRM vs created the diagrams. The definitions and distinctions between processor, core and CPU seem to vary in time/company/setting. That's one reason why generally the architecture specifications use the term "Processing Element" - to avoid any historical confusion around the more common terms.
Hello, I read it as a CPU that obeys the Armv7-M architecture, without going into any further detail.
Similarly you can see this (for example) for the Cortex-M4, and the Cortex-M33 shows Armv8-M mainline architecture.
https://developer.arm.com/Processors/Cortex-M4
https://developer.arm.com/Processors/Cortex-M33
Thank you for your answer.
I know, but it doesn't show "Armv7-M processor core". It started to confuse me. I hope it will be more standardized when to avoid ambiguity.Anyway, thank you for your answer.