| 摘要 |
<p>A disk drive architecture (10) controls the transfer of data between a host processor interface (50) and a recording media that includes one or more disk surfaces (14) for storing data. A low-level data controller controls the transfer of data between the disk surfaces (14) and a data buffer. An interface controller (52) controls the transfer of data between the host interface (50) and the data buffer. An arbiter and buffer controller (32, 34), responsive to data transfer requests from the low-level and interface controllers, arbitrates data storage and retrieval access of the data buffer. The low-level and interface controllers operate substantially independent of one another in performing their respective control operations. Consequently, data is transferred bi-directionnally through the data buffer at the optimum timing for both controllers.</p> |
