| 摘要 |
Reusable tags are assigned to read and write requests on a tagged access synchronous bus. This allows multiple reads to be queued and overlapped on the tagged access synchronous bus to maximize data transfer rates. Writes are buffered to similarly allow multiple writes to be over-lapped. All data transfers on the tagged access synchronous bus typically would default to a cache block amount of data, with critical word first and early termination capabilities provided to permit processor execution to proceed without waiting for an entire cache block to be loaded. The tagged access synchronous bus architecture thus allows the system to take full advantage of high speed memory devices such as SDRAMs, RDRAMs, etc. while decoupling the bus data transfers from processor execution for increased overall system performance.
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