__disable_irq
In this section:
Syntax
void __disable_irq(void);
Description
In 32-bit mode: Disables interrupt requests (irq). This intrinsic function can only be used in privileged mode and is not available for Cortex-M devices.
In 64-bit mode: Disables interrupt requests in the DAIF system register (bit 2).
Note
To use intrinsic functions in an application, you must include the header file(s) where they are declared, see Summary of intrinsic functions.