Uno R4 boards are based on the Arm® Cortex®-M4 core (Armv7E-M architecture profile) try to check in side **Cortex™-M4 Devices Generic User Guide**
Uno R4 boards are based on the Arm® Cortex®-M4 core (Armv7E-M architecture profile) try to check in side **Cortex™-M4 Devices Generic User Guide**