| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a data change circuit (ROM correction circuit) without using a switching means and without the need of performing switching control. SOLUTION: By providing a correction program storage means outputting data by data driving force sufficiently larger than the data driving force of a basic program storage means storing a basic program, basic program data outputted onto a data bus from the basic program storage means are corrected to corrected program data outputted from the correction program storage means.</p> |
