SU1198743A1 - Multichannel device for synchronizing operation of aperiodic automatic machine - Google Patents

Description

The invention relates to the impulse "* n * th technique and can be used in digital computing devices.

The purpose of the invention is to simplify the device.

The drawing shows a diagram of the device.

The device contains the first two-input elements AND-NOT 1, the second two-input elements AND-NOT 2, the third two-input elements AND-NO 3, the first multi-input element AND-NO 4,

the second multi-input element AND-NOT 5,

third multi-entry element AND-NOT 6.

The inputs and outputs of the device (the first inputs of the first two-input elements AND-NOT 1 and the outputs of the third two-input elements AND-NOT 3) are connected respectively to the outputs and inputs of aperiodic automata 7.

The principle of operation of the device is illustrated by the example of synchronization of aperiodic automata, a single signal at the output of which appears some time after the arrival of a zero signal at their input.

The initial state of the device is taken as the presence of zero signals at the outputs of all channels (at the outputs of the third two-input elements AND-NOT 3) and the output of the multi-input element AND-NOT, 5 and the presence of single signals at the outputs of the multi-input elements AND-NOT 4 and 6.

Due to the fact that the device does not have a steady state due to the presence of feedbacks between its elements, this combination of output signals can be ensured only when the output of one of the aperiodic automata 7 signal is equal to "1", and the output the rest are "O".

The presence of the signal "1" at the input of one of the channels leads to the appearance of the signal "O" at the output of the first two-input element AND-NOT 1 of this channel, which ensures the preservation of the signal "1" at the output of the multi-input element AND-NOT 4.

The zero output signal of the second multi-input element AND-NOT 5 causes the appearance of the signal ”1” at the output of the second two-input elements AND-NOT 2 of each of the channels.

This combination of output signals is maintained until

until the aperiodic automaton 7 operates, the output of which was the signal "1", as a result of which its output signal becomes equal to zero.

The appearance of a zero signal at the inputs of all channels leads to the formation of a zero signal at the output of a multi-input element Y – NE 4 over

Yu account for the presence of single signals at all its inputs. Transition multiway. of the new element AND-NOT 4 to the zero state causes the transition of the multi-input element AND-NOT 5 to a single

• 5 state, as a result of which on both inputs of the second two-input elements AND-NOT 2 of all channels there will be single signals, and consequently, signals will appear on their outputs

20 "0", which leads to the appearance of signals "1" at the outputs of the two-input elements AND-NOT 3, and therefore at the output of all channels.

Single signals from the outputs of the device channels provide simultaneous start of all aperiodic automata 7 and transfer of the device to a new stable state, characterized by a change in the output signal ₃ θ of its elements to the opposite value.

So the output signal of the third multi-input element AND-NOT 6 will become zero due to the presence of single signals at all its inputs.

35 which leads to the appearance of a single signal at the output of the first multi-input element AND-NOT 4.

After the operation of all aperiodic automata 7 and the appearance of single signals at their outputs, an avalanche-like change of states of the elements of each channel begins.

Signals "0" appear at the outputs of the first two-input elements AND-NOT 1, which leads to the appearance of signals "1" at the outputs of the second two-input elements AND-NOT 2 and, accordingly, to the appearance of a zero signal at the output of the multi-input element AND-NOT 5,

5® which in turn causes the appearance of a single signal at the output of the third multi-input element AND-NOT 6.

⁵⁵ The presence on both inputs of the third two-input elements AND-NOT 3 single signals from the outputs of the second two-input elements AND-NOT 2 and

3

the output of the third multi-input element AND-HE 6 leads to the appearance of zero ^ signals at the outputs of all channels, which characterizes the initial state of the device, after which the next cycle of its operation begins.

1198743 ⁴

The effect of using the invention is to reduce the cost of synchronizing devices of digital computing devices by using ₅ logic elements with a smaller number of inputs.

Claims (1)

MULTI-CHANNEL DEVICE FOR SYNCHRONIZATION OF OPERATIONAL AUTOMATIC OPERATIONS, containing sequentially connected first, second and third multi-input elements AND-NOT, and in each channel - sequentially connected first, second and third two-input elements AND-NOT, the first input of the first two-input element AND-NOT and the output of the third two-input element AND-NOT are connected respectively to the input and output of one channel of the device; the second inputs of all the two-input elements are NAND, and the last, the input with the output of the third multi-input element NAND, characterized in that, in order to simplify _the device, the outputs of the second and third ® two-input elements AND-NOT connected to the same inputs of the second and third multi-input elements AND-NOT, respectively, and the second inputs of the second and third two-input elements AND-NOT connected to the outputs, respectively, of the second and third multi-input elements AND-NOT. 5C „„ 1198743 1198743.