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Write Buffer
5-4
Copyright © ARM Limited 1997, 1998, 2000. All rights reserved.
ARM DDI 0192A
5.2.3
Read-lock-write
The write phase of a read-lock-write sequence is treated as an unbuffered write, even if
it is marked as buffered.
Note
A single write requires one address slot and one data slot in the write buffer. A
sequential write of n words requires one address slot and n data slots. The total of eight
data slots in the buffer can be used as required. For example, there can be three
nonsequential writes and one sequential write of five words in the buffer, and the
processor could continue as normal, A fifth write or a sixth word in the fourth write
stalls the processor until the first write has completed.
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