SU941996A1 - Homogeneous structure cell - Google Patents

Description

(5) CELL OF UNIFORM STRUCTURE

The invention relates to automation and computer technology and is intended to DG. calculating Boolean functions. The well-known homogeneous structure cell for calculating the Boolean functions, containing the first, second and third trggs, whose inputs are connected respectively to the outputs of the first, second, third, fourth, fifth and sixth And elements, the inverse output of the first trigger And whose second input is connected to the direct output of the second trigger, the inverse output of which is connected to the first input of the eighth element And, the second input of which is connected to the direct output of the first trigger, and the third input is connected to The first input of the cell to which the first input of the second element AND is also connected through the element is NOT the first input of the first element AND and the third input of the seventh element AND, the output of which is connected to the output of the cell and with the output of the eighth element AND, the fourth input of which is connected through the element NOT with the control bus cell and with the first input of the tenth element I, and directly with the first input of the ninth element I, whose second input is connected to the direct output of the third trigger, and the third input through the element is NOT connected to the second input of the device and a second input of the tenth AND gate, whose output is connected to second inputs of the first. the second, third, fourth, fifth and sixth elements And, the first input of the third element And through the element is NOT connected to the third input of the cell, the first input of the fourth element And is connected to the output of the ninth element And, the first input of the fifth element And is connected through the element NOT with: the first input of the sixth element And and the fourth input of cell 1. The disadvantages of this cell are the complexity and functional limitation, which does not allow to calculate the Boolean functions specified in the form of a relay contact diagram, without preliminary transforms and records in the basis of the pierce arrow. Closest to the proposed technical entity is a uniform structure for calculating Boolean functions, containing four memory elements, the first inputs of which are connected to the cell setup inputs, the second inputs are connected to the reset input, and the third inputs are connected to the cell control input. the direct output of the first memory element is connected to the first inputs of the first and second NAND elements, the outputs of which are connected to the first inputs of the first and second elements respectively. The non-equilibrium, the outputs of which are connected to Respectively with the first and second inputs of the third INE element, the third input of which is connected to the inverse output of the third, memory element, and the output is connected to the first input of the third element Negeneracy, the second input of which is connected to the direct output of the third memory element, and the output is connected to the first inverting input of the OR element, the output of which is connected to the information output of the device, and the second inverting input is connected to the output of the fourth NAND element, the first input of which is connected to the direct output of the fourth el memory, and the second input is connected to the output of the fourth element Equilibrium, the first input of which is connected to the output of the second element Equilibrium, and the second input connected to the second input of the first element Equilibrium and the second input of the second element Negeneracy connected to the direct output of the second memory element, and the second input of the second NAND element is connected to the second information input of cell 2. However, the known cell has a complex structure and does not allow you Enumerate Boolean functions defined as ladder circuits without first converting them to the form of Boolean expressions. The aim of the invention is to simplify the cell and expand the field of application by calculating Boolean functions defined as relay-touch circuits without first converting them to the form of Boolean expressions. The goal is achieved by the fact that in a cell of a homogeneous structure containing triggers, elements AND, OR, and Unequalities, the first and second inputs of the cell settings are connected to the information inputs of the first and second triggers, respectively, the installation inputs to zero of the third the trigger and to the setup input to the zero cell, the control input of which is connected to the recording control inputs of the first, BToporo and third triggers, the first information input of the cell is connected to the first input The first element And the output of the first trigger is connected to the first input of the second element And the variable input information of the cell is connected to the information input of the third trigger, the outputs of the second and third triggers are connected to the first and second inputs of the Balance element, respectively, the output of which is connected to the second input of the first AND element whose output is connected to the first input of the OR element, the second input of which is connected to the second information input of the cell, the first output of which is connected to the output of the OR element and to the second input of the second element And, the output of which is connected to the second output of the cell. FIG. 1 shows a cell of uniform structure in FIG. 2 shows an example of a device implementing a Boolean function f (X, Chl, X,), represented in the form of a relay-contact circuit. The cell contains triggers 1–3, element k imbalance, AND 5 and 6 elements, OR element 7, settings 8 and 9, variable cell input 10, reset input 11, control input 12, information inputs 13 and 14, outputs 15 and 16 The inputs of the trigger 1 and 2 are connected respectively to the inputs 8 and 9 of the cell settings, the input of the trigger 3 to the input 10 of the variable cell, the inputs for setting the triggers 1,2 and 3 to the input 11 of the reset, and their other inputs are connected to the input 12 of the cell control , moreover, the output of the trigger 1 is connected to one of the inputs of the element

t imbalance, the other input of which is connected to the trigger output 3, and the output is connected to the input of the element AND 5, another input of which is connected to the information input of the 13th cell, and the output to the input of the element OR 7, the other input of which is connected to the informational input of the cell, and the output is connected to the outlet 15 of the cell and to the input of the element 6, the second input of which is connected to the output of the trigger 2, and the output to the output of the 16 cell.

The cell works as follows.

At the start of operation, the triggers 1,2 and 3 are in the zero state after the reset signal is applied to input 11

cells To program the cell, the tuning inputs 8 and 9 are respectively sent to the signals a and b, and the input variable value X is supplied to the input 10 of the variable cell. When a signal is sent to the control input 12, the triggers 1,2 and 3 remember the information fed to their inputs. State of Information Inputs

13 and 1 cells, respectively, Y and Z, exit states 15 and 16 cells, respectively, Y and Z.

Claims (2)

1. USSR author's certificate number 577525, cl. G 06F 7/00, 1977. 2. Huang K., Mibelli D. Programmable logic matrix on TTL elements and its application. TIIER, t.64, 1976, W 3, p.77-79 (prototype). / /about / J ) f / iOO ffffffff rffmj / uii , //, V t-o . f, ultrasound) Fg / e.