Register control circuit for initialization of registers

Details Register control circuit for initialization of registers Register control circuit for initialization of registers

1992-07-15

1994-10-25

Heyman, John S.

Electrical pulse counters, pulse dividers, or shift registers: c

Shift register

Particular input circuit

377 78, 3072723, H03K 2102, H03K 2342

Patent

active

053596366

ABSTRACT:
A register control circuit has a plurality of registers, a control circuit for producing clock signals, and a logic circuit for producing latch clocks based on a reset signal and the clock signals. A shift data is inputted to a first one of the plurality of registers through a 2-input AND gate. The latch clocks are forced to become active simultaneously under a state in which an input to the first stage register being controlled to "0". The shift register is initialized in such a way that a "0" input is sequentially transferred from the first stage register to the final stage register. The shift register can be formed without the need of registers having reset inputs and initialized speedily, while keeping the increase in the device elements at the minimum.

REFERENCES:
patent: 3812384 (1974-05-01), Skorup
patent: 4181862 (1980-01-01), Dingwall
patent: 4558457 (1985-12-01), Tabata
patent: 4630295 (1986-12-01), Kamuro et al.
patent: 4882505 (1989-11-01), Furman

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