Cpsid Cpsie - ST STM32F0 Series Programming Manual

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The STM32 Cortex-M0 instruction set

3.7.2

CPSID CPSIE

Change processor state.

Syntax

CPSID i

CPSIE i

Operation

CPS changes the PRIMASK special register values. CPSID causes interrupts to be disabled

by setting PRIMASK. CPSIE cause interrupts to be enabled by clearing PRIMASK. See

Exception mask registers on page 15

Restrictions

None

Condition flags

This instruction does not change the condition flags.

Examples

CPSID i ; Disable all interrupts except NMI (set PRIMASK)

CPSIE i ; Enable interrupts (clear PRIMASK)

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for more information about these registers.

Doc ID 022979 Rev 1

PM0215

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