SU1587490A1 - Multifunctional logic module - Google Patents

Abstract

The invention relates to automation and computing and can be used to implement logical functions within a logic control system. The aim of the invention is to extend the functionality by implementing non-repetitive logical formulas of seven variables. The module, which has separate information and tuning inputs, contains nine AND logical elements, three OR logical elements, and four logical NOT elements. All non-repetitive logical functions of seven or less variables, represented in the disjunctive normal form (DNF), are implemented. With equal availability of direct and inverse outputs of information sources and the possibility of identifying the module inputs, it also allows for arbitrary (including repeated) DNF of seven or less variables. The type of setting is a simple one belonging to the set {0,1}. 1 ill., 1 tab.

Description

The invention relates to automation and computing technology and is intended to be implemented by setting all the logical functions of seven or less variables represented in the disjunctive normal (| yurma (DNF), with equal availability of direct and inverse outputs of information sources and the possibility of identifying device inputs and can be used, for example, for implementation and logic functions in the logical control system of a radio transmission device.

The aim of the invention is to extend the functionality by implementing non-repetitive logical formulas of seven variables.

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The drawing shows the modular module circuit contains information inputs 1-7 (X, corresponds to information input 1, X. - information input 2, and so on), configuration inputs 8-11 (Xv corresponds to configuration input 8, X - configuration input 9 and so on), elements

And 12 - 20, elements OR 21-23, elements NOT 24-27, output 28 module.

The structure of the module is described by a Boolean function of eleven variables:

F (X ,, X2, ..., X /,) X, X2Xg + (X,) X х. + X,) + XjX XgXj-XgX ,, + + XjX.XX, + X, X, o + X , XgX ,,.

The module operation under various tuning modes for implementing all fifteen representatives of non-repetitive DNF of seven variables is presented in the table.

Example. Let it be required to implement non-repeatable DNF of type 4 + 3, i.e. F X, X X X + X5XgX;

In accordance with the table, setup signal 8 is given a Log signal. Oh, the setup input 9 is a signal of the Log., The setup input 10 is a signal of the Log.O and the configuration input 11 is a signal of the Log.O. The realizable function F is removed from the output 28 of the module.

Similarly, ms-be any of the DNFs of seven or less can be implemented, the variable Dp of getting by setting up any non-repetitive DNF from six variables must be considered as input 7 of the module not informational, but tuning. Then, to implement, for example, unparalleled DNF 4 + 2, i.e. F, you need to apply to the input 7 of the module the signal Log ..

In addition, the module, with the possibility of identifying inputs, allows one to implement arbitrary (including. Repeated) DNF of seven or less variables.

For example, let it be required to implement repeated DNF from six variables F, UlUz +

When setting up ho o

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X., O module implements

function F + X ,,. With X Y,, X5 Y, X Y ,,,,, X, Yg the module implements the specified function.

Claims (1)

Invention Formula A multifunctional logic module containing nine AND elements, three GHS elements and two NES elements, with the first information input of the module connected to the input signal ten 15 20 25 thirty 35 40 45 50 five Bord element NOT and the first input of the first element And, the output of which is connected to the first inputs of the second element And the first element Ш111, the second inputs of which are connected to the first tuning input of the module, the outputs of the second and third elements And connected to the first and second inputs of the second element IGSh the output of which is the output of the module, the second and third information inputs of which are connected respectively to the second input of the first element AND and the first input of the fourth element And the second input of which is connected to the output of the third ele ente OR, the first input of which is connected to the first input of the fifth element And and the second configuration input of the module, the fourth and fifth information inputs of which are connected respectively to the first input of the sixth element And and the first input of the seventh element And, the output of which is connected to the second inputs of the third element OR of the fifth element AND, the second input of the seventh element AND is connected to the sixth information input of the module and the input of the second element NOT, the output of which is connected to the first input of the third element AND, the output of the first element NOT connect Inen with the first input of the eighth element And, the output of which is connected to the third input of the second element OR, the fourth fifth and sixth inputs of which are connected to the outputs of the fourth, fifth and ninth elements And, the first input of which is connected to the third tuning input of the module, differ- w; and with the fact that, in order to extend the functionality by implementing non-repetitive logical formulas from the family of variables, it contains the third and fourth elements NOT, with the second and third inputs. The third element And is connected to the first and third configuration inputs of the module, the third and fourth information inputs of the module are connected respectively to the second input of the sixth element And and the third input of the fourth element And, the fourth input of which is connected to the output of the first element OR, the fifth information input of the module connected to the third inlet. the house of the sixth element And, the output of which is connected to the input of the third element NOT, the output of which is connected to the second input of the ninth element And, the third input of which is connected to the output of the fourth element NOT, the input of which is connected to the first tuning input of the module, the seventh information input of which is connected to the fourth input of the sixth element And, and with the third input of the seventh element And, the second input of the eighth element And is connected to the fourth configuration input of the module.