| 摘要 |
An integrated circuit device in which a CPU not to be used of a plurality of CPUs formed on one chip can easily be disconnected by an external signal in order to reduce the costs of developing an LSI. In accordance with a CPU selection signal inputted from the outside, a decoder generates an internal selection signal for selecting a CPU to be operated and sends the internal selection signal to the plurality of CPUs. Only the selected CPU can perform valid access to a bus to use peripheral modules.
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