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1.3.2. Cache command requests

Manual power request (CCR.POW_REQ) cannot be cleared when cache is in manual power mode and the cache is not in disabled state, otherwise a power error interrupt is raised and the cache disables itself:

  • Manual invalidation request (CCR.INV_REQ) must be set only when CG092 is in disabled state, otherwise an invalidation error interrupt is raised and the cache disables itself.

  • Manual invalidation request will not start an invalidation process if it is configured to work in automatic invalidation request mode.

  • Invalidation requests cannot be cleared via the APB bus, it is automatically cleared when the invalidation process finishes (either started manually or automatically) or when power or invalidation error occurs.

Note

The manual power request has no effect on CG092 behavior if it is configured to work in automatic power request mode.

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