| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a data transfer system for reducing such a risk that read data are decoded even when a semiconductor memory such as a DRAM is removed from a main body, and that data stored in a semiconductor memory are read. <P>SOLUTION: A scrambler 20 changes scramble data synchronously with a Write Busy/Ready signal to be supplied from a DDR SDRAM I/F30, and changes the connection destination of a data transfer path based on the changed scramble data to scramble data received from a WR FiFo 10. The scrambled data are written in a DDR SDRAM 4 synchronously with an SDRAM Data Strobe to be output from a DDR SDRAM I/F 30 with scramble data used when the data have been scrambled. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
