SAM3N0A Atmel Corporation, SAM3N0A Datasheet - Page 140
SAM3N0A
Manufacturer Part Number
SAM3N0A
Description
Manufacturer
Atmel Corporation
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10.18.3
10.18.3.1
10.18.3.2
10.18.3.3
10.18.3.4
140
DMB
SAM3N
DMB
Syntax
Operation
Condition flags
Examples
; Data Memory Barrier
Data Memory Barrier.
where:
cond
DMB acts as a data memory barrier. It ensures that all explicit memory accesses that appear, in
program order, before the DMB instruction are completed before any explicit memory accesses
that appear, in program order, after the DMB instruction. DMB does not affect the ordering or
execution of instructions that do not access memory.
This instruction does not change the flags.
DMB{cond}
is an optional condition code, see
“Conditional execution” on page
11011A–ATARM–04-Oct-10
84.
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