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PM0223 数据表(PDF) 71 Page - STMicroelectronics

部件名 PM0223
功能描述  This programming manual provides information for application and system-level software developers
PDF  110 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

PM0223 数据表(HTML) 71 Page - STMicroelectronics

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PM0223
The STM32L0 Cortex-M0+ Instruction Set
80
3.7.3
DMB
Data Memory Barrier.
Syntax
DMB
Operation
DMB
acts as a data memory barrier. It ensures that all explicit memory accesses that appear
in program order before the DMB instruction are observed before any explicit memory
accesses that appear in program order after the DMB instruction. DMB does not affect the
ordering of instructions that do not access memory.
Restrictions
There are no restrictions.
Condition flags
This instruction does not change the flags.
Examples
DMB
; Data Memory Barrier



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