| 摘要 |
<p>PURPOSE:To obtain a flexible circuit suitable for high integration by transferring a start signal to the input terminal of an FF when the start signal is shifted to an optional bit position of a shift register. CONSTITUTION:For respective input terminals S1 and R1-S4 and R4 of FFs B1-B4, one optional bit position of a shift register A is written previously so that it is selected by a program, and when a start signal E is shifted to the stored bit position, the start signal E is transferred to the input terminals S1 and R1-S4 and S4 of the FFs B1-B4. Consequently, the shift register A and FFs B1-B4 can be connected internally, the circuit is provided with flexibility, and the number of external terminals is decreased, so that a programmable timing circuit suitable for high integration.</p> |
