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US 2017/0336474 A1Published application
Register circuit
AssigneeMurata Manufacturing Co., Ltd.
InventorsMasanori Iijima, Yuji Shintomi, Satoshi Matsumura
Life of this patent
Estimating the term…
Abstract
A register circuit for which an initial value can be changed without using a flip-flop including both a set terminal and a reset terminal is provided. The register circuit includes an initial value wiring line, a write signal terminal, a clock signal terminal, a first flip-flop, an output control circuit, a second flip-flop, and a selector.
Claims8
A register circuit into which an input signal is input and from which an output signal is output comprising:
- an initial value wiring line configured to supply an initial value signal having an initial value of the output signal;
- an input terminal into which the input signal is input;
- a write signal terminal into which a write signal instruction for writing the input signal is input;
- a clock signal terminal into which a clock signal is input;
- a first flip-flop configured to change a first signal from a first value to a second value in accordance with the clock signal;
- an output control circuit configured to output a second signal, the second signal having the initial value when the first signal has the first value, and the second signal having a value of the input signal, in accordance with the write signal, when the first signal has the second value;
- a second flip-flop configured to latch and output the second signal in accordance with the clock signal;
- and
- a selector configured to output the initial value signal as the output signal when the first signal has the first value and to output the second signal supplied from the second flip-flop as the output signal when the first signal has the second value.
6 more elements
Dependencies are inferred from the claim text.