| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a SoC applied with a voltage island which can prevent being unable to perform memory access in other modules when a certain module is powered-on. <P>SOLUTION: A microcomputer includes a plurality of memories with redundancies, a fuse cell 101, a shift register 10 and a controlling circuit 20. The fuse cell 101 stores configuration information for controlling switch of memory components in the plurality of memories. The shift register 10, placed corresponding to each memory, receives the configuration information toward the memories from the fuse cell 101 and hold it. The controlling circuit 20 controls operations of the shift register 10. The shift register 10 includes a shift part which receives data of the configuration information to transfer the data to the other shift register 10, and a latch part which holds the data input into the shift part. The controlling circuit 20 controls whether to hold the input data of the shift register 10 in the latch part. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
