Pipeline Burst Cache (PB Cache)
Definition - What does Pipeline Burst Cache (PB Cache) mean?
Pipeline burst cache (PBC) is a type of cache module or memory that enables a processor in reading and fetching data in succession from a data pipeline.
It is a cache memory architecture that is used for designing L1 and L2 caches. It was first unveiled in the mid-1990s as an alternative to the asynchronous cache or synchronous burst cache.
Techopedia explains Pipeline Burst Cache (PB Cache)
The data from PBC are retrieved or written in a succession of four cycles - it requires four successive transfers before the storage from cache is transferred to the processor.
Pipeline burst cache works on two different modes:
- Burst Mode: Allows the cache to pre-fetch memory contents before they are required by the processor.
- Pipelining Mode: In this mode, similar memory value can be accessed from the cache and RAM simultaneously.
With PBC, the data to be processed next by the processor are pre-held in a buffer or storage area.
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