| 摘要 |
PROBLEM TO BE SOLVED: To provide a control device capable of performing writing of an operation program of a CPU to an electrically rewritable internal nonvolatile memory while suppressing an increase in circuit area and an increase in manufacturing cost. SOLUTION: A download control circuit 51 reads, on receipt of download enable signal, data of an external serial flash ROM 30 with a reading command set of a first command register 61 and an address set in an address register 53, and temporarily stores them in a data register 54. The control circuit performs writing of data into an internal flash ROM 10 with a writing command set of a second command register 62, the address set in the address register 53, and the data temporarily stored in the data register 54. COPYRIGHT: (C)2006,JPO&NCIPI
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