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• If cacheable: write-through/write-back
Data writes propagate directly to memory or are deferred until the
cache line is reallocated. If write-through, allocate on read only, or
read and write.
• Dirty/modified
The data in this page in memory has changed since the CPLB was
last loaded. This must be managed by software and does not
change status automatically.
• Supervisor write access permission
– Enables or disables writes to this page when in Supervisor mode.
– Data pages only.
• User write access permission
– Enables or disables writes to this page when in User mode.
– Data pages only.
• User read access permission
Enables or disables reads from this page when in User mode.
• Valid
Check this bit to determine whether this is valid CPLB data.
• Lock
Keep this entry in MMR; do not participate in CPLB replacement
policy.
ADSP-BF53x/BF56x Blackfin Processor Programming Reference
Memory
6-49
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