| 摘要 |
Interface circuitry is disclosed for interfacing between an operational circuit, a microprocessor, for example, and data storage circuitry, for example direct Rambus memory. The interface circuitry comprises buffer circuitry coupled between the operational circuitry and the data storage circuitry which is arranged to store data access requests received from the operational circuitry and to store data retrieved from the data storage circuitry. The buffer circuitry comprises an output for supplying the data access request signals to the data storage circuitry and to supply the stored data from the data storage circuitry to the operational circuitry.In use, the number of stored data access request signals decreases as the amount of stored data from the data storage circuitry increases. Similarly, the number of stored data access request signals increases as the amount of stored data from the data storage circuitry decreases. The overall effect is that in use, the sum of this stored data access request signals and stored data in the buffer circuitry remains substantially constant.
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