| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a storage unit and a memory system that can shorten a start time of the system and a time to start a code without the necessity of data and the code to be transferred to a main memory. <P>SOLUTION: A storage controller 21 of the storage unit includes: a first interface function for access to data stored on the storage device designated using a sector address provided via a bus; a second interface function for direct access to data on an RAMD 22 using a word address designated via the bus; a function of using the RAMD 22 as a first disk cache and determining data stored in the RAMD 22 with respect to the access by the first interface function; and functions of transferring the data designated using the sector address by repeating register access and a bus master function as continuous word-sized data through the bus. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
