| 摘要 |
<p>PURPOSE:To ensure an assured initial state setting with no complication given to the software for a computer which operates on a battery, by designating the head address of the key sampling flow with the carry signal of a counter and then performing a clear process with the AC key. CONSTITUTION:The oscillator circuit 1 works with replacement of the batteries, and the reference signal is sent to the divider circuit 2. thus the carry signal is delivered from the counter 2a to be supplied to the ROM address part 4. With supply of the carry signal, the part 4 designates the head address of the key sampling flow to the ROM5. Furthermore, the key sampling flow is exectued, and a clear process is performed with operation of the AC key 10. As a result, the arithmetic registers except the clocking register are cleared to secure thereafter the normal key holding state. Thus the normal process is carried out with operation of the key input.</p> |
