Two-way handshake circuit and method for communication between p

Details Two-way handshake circuit and method for communication between p Two-way handshake circuit and method for communication between p

1991-05-10

1993-06-08

Heckler, Thomas M.

Boots, shoes, and leggings

364DIG2, 36494081, 36492795, G06F 1342

Patent

active

052186822

ABSTRACT:
A two-way handshake circuit and method for communications between digital devices, such as microprocessors which employs one tri-state input/output port pin per microprocessoror digital device. The configuration of each tri-state input/output port pin is controlled by control software within the digital device. The tri-state input/output port pins are connected by a self-latching circuit employing two parallel branches. A first branch includes a first amplifier or inverter connected in series with a first resistor so as to allow voltage level changes to be reflected in only one direction. A second branch includes a second amplifier or inverter connected in series with a second resistor so as to allow voltage level changes to be reflected in the opposite direction of the first branch.

REFERENCES:
patent: 4209840 (1980-06-01), Berardi et al.
patent: 4428046 (1984-01-01), Chari et al.
patent: 4612638 (1986-09-01), Kissel
patent: 4695944 (1987-09-01), Zandveld et al.
patent: 4739323 (1988-04-01), Miesterfeld et al.
patent: 4829467 (1989-05-01), Ogata
patent: 4852043 (1989-07-01), Guest

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