| 摘要 |
<p>PURPOSE:To secure the continuity of operation before and after the setting of a backup mode, and to realize the reduction of a consumed supply current. CONSTITUTION:The continuity of the operation of a microcomputer 1 before and after the setting of the backup mode can be secured, and simultaneously, the consumed supply current at the time of the backup mode can be reduced even in the case that a VDD1 and a VSS1 are set to the same potential at the time of the backup mode by transferring register data between a register set 2 and a RAM 7 exclusively used for saving register data through a register data transfer circuit 6 before and after the microcomputer 1 is set to the backup mode.</p> |
