Xilinx MicroBlaze Reference Manual page 89

WDC Instruction
The optional WDC instruction (
lines in the data cache from an application. For a detailed description, please refer to
Chapter 5, MicroBlaze Instruction Set
The WDC instruction can also be used together with parity protection to periodically
invalidate entries the cache, to avoid accumulating errors.
With an external L2 cache, such as the System Cache, connected to MicroBlaze using the
ACE interface, external cache invalidate or flush can be performed with WDC. See the
LogiCore IP System Cache Product Guide (PG118)
Cache.
MicroBlaze Processor Reference Guide
UG984 (v2018.2) June 21, 2018
C_ALLOW_DCACHE_WR=1
Architecture.
[Ref 6]
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Chapter 2: MicroBlaze Architecture
) is used to invalidate or flush cache
for more information on the System
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