SPRUJ55D September 2023 – July 2025 AM263P2 , AM263P2-Q1 , AM263P4 , AM263P4-Q1
The RL2 has an integrated Tag RAM for tag information that is SETs deep and WAYs times WAY info wide. This memory start auto initialization when a write to the L2_CTRL.size field occurs that changes the current size, or the L2_CTRL.enable bit is changed from a '0' to a '1' and all pending operations have completed. The RL2 performs any correctable ECC writeback in the event ECC is enabled and a single error correct occurs. The memory is not used until the L2_CTRL.size field is written and the L2_CTRL.enable bit is set.
The tag memory auto initialization preloads the LRU info into each way of all the defined sets. The L2_STS.ok_to_go status bit indicates that Tag/LRU RAM has been initialized and the cache is in an operable state.