Logic module

FIELD: computers.

SUBSTANCE: logic module has And element, first, second majority elements, OR element, three data inputs and two adjustment inputs.

EFFECT: broader functional capabilities.

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The invention relates to computer technology and can be used for building automation, functional units of the control systems and other

Known logical units (see, for example, Fig. 3.3 on page 39 in the book of Jakubaitis E.A. Asynchronous logic automata. Riga: zinatne, 1966), which implement a simple symmetric Boolean functiondepending on the three arguments - input binary signals x₁, x₂, x₃∈ {0, 1}.

For the reason that impede the achievement of specified following technical result when using known logic modules include limited functionality due to the fact that there is no implementation of other simple symmetric Boolean functionsand τ₃=x₁x₂x₃that depends on three arguments - input binary signals x₁, x₂, x₃∈ {0, 1}.

The closest device to the same destination to the claimed invention by the combination of features is adopted for the prototype logic module (see Fig. 18,2A on page 315 in the book Kazkas A.A. Basics of electronics. M: The High. HQ., 1988), which contains an element of "And" and implements a simple symmetric Boolean function

The obstacle to achieving the Oia specified below technical result when using prototype includes limited functionality due to the fact that there is no implementation of a simple symmetric Boolean functionsand τ₃=x₁x₂x₃.

The technical result of the invention is the extension of functionality by ensuring the implementation of any of the three simple symmetric Boolean functions that depend on three arguments - input binary signals.

This technical result in the implementation of the invention is achieved in that in the logic module containing the element "And"the peculiarity lies in the fact that it introduced the first, second majoritarian elements and element "OR", and output first and second inputs of the element OR respectively connected with the third input of the first majority element and the first, second inputs of the element And connected the output to the third input of the second majority element, the first and second inputs which are connected respectively with the second tuning input of the logic module and the output of the first majority element connected to the first and the second inputs respectively to the first configuration and the first information input of the logic module, the second, third information input and the output of which is formed respectively a first, a second input element And The And and the output of the second majority element.

The drawing shows the proposed scheme logic module.

The logic module contains the element "And" 1, item OR 2, the first and second majoritarian elements 3₁and 3₂and output first and second inputs of the element 2 are connected respectively with the third input element 3₁and the first, second inputs of the element 1, output connected to the third input element 3₂the first and second inputs which are connected respectively with the second tuning input of the logic module and the output element 3₁connected first and second inputs respectively to the first configuration and the first information input of the logic module, the second, third information input and the output of which is formed respectively first, second inputs of the element 2 and the output element 3₂.

The work of the proposed logic module is as follows. At its first, second, third information and the first, second tuning inputs are given correspondingly binary signals x₁, x₂, x₃∈{0, 1} and y₁,₂∈{0, 1}. The signal at the output of the majority element 3_i(i∈ {1, 2}) is equal to "1" ("0") only when on two or on all inputs of this element signals are equal to "1" ("0"). Therefore, if the first input element 3_iis"1" ("0"), this element will perform the operation "OR" ("AND") over signals acting on its second and third inputs. Thus, operation, reproducible offered by the module is defined by the expression

where the symboland · marked accordingly surgery "OR" and "And".

The above data allow us to conclude that the proposed logic module has a wider compared to the prototype functionality, as it provides the implementation of any of the three simple symmetric Boolean functions τ₁=x₁∨ x₂∨ x₃that τ₂=x₁x₂∨ x₁x₃∨ x₂x₃that τ₃=x₁x₂x₃that depends on three arguments - input binary signals.

The logic module that is designed to implement any of the three simple symmetric Boolean functions that depend on three arguments - input binary signals containing element And, characterized in that it introduced the first, second majoritarian elements and element "OR", and output first and second inputs of the element OR respectively connected with the third input of the first majority element and the first, second inputs of the element And connected the output to the third input of the second the th majority element, the first and second inputs which are connected respectively with the second tuning input of the logic module and the output of the first majority element, connected to the first and second inputs respectively to the first configuration and the first information input of the logic module, the second, third information input and the output of which is formed respectively a first, a second input element "OR" and the output of the second majority element.