Are all Teensies using Cortex-M cores (without MMU)? Are MMU's out of scope for Teensy?
B bigpilot Well-known member Feb 21, 2026 #1 Are all Teensies using Cortex-M cores (without MMU)? Are MMU's out of scope for Teensy?
J joepasquariello Well-known member Feb 21, 2026 #2 bigpilot said: Are all Teensies using Cortex-M cores (without MMU)? Click to expand... Yes. I think LC is Cortex M0, T3.2 is Cortex M3, T3.5/6 are Cortex M4 and T4.x are Cortex M7. bigpilot said: Are MMU's out of scope for Teensy? Click to expand... Yes
bigpilot said: Are all Teensies using Cortex-M cores (without MMU)? Click to expand... Yes. I think LC is Cortex M0, T3.2 is Cortex M3, T3.5/6 are Cortex M4 and T4.x are Cortex M7. bigpilot said: Are MMU's out of scope for Teensy? Click to expand... Yes
PaulStoffregen Well-known member Feb 21, 2026 #3 Indeed no MMU. We do get a MPU which enforces access policies (eg, no executing code from data memory, no writing to code memory) but no virtual memory mapping.
Indeed no MMU. We do get a MPU which enforces access policies (eg, no executing code from data memory, no writing to code memory) but no virtual memory mapping.