SU1456957A1 - Priority device - Google Patents

Abstract

The invention relates to computing and can be used in multi-processor request processing devices. The purpose of the invention is to expand the scope of application by serving requests with both relative and absolute priorities. The priority device contains regasters 1-3, demultiplexer 4, distributor 5 pulses, elements IL 6.7, switch group 8.i - 8.N, encoder 9, interrogation 10 and signal 11 inputs, outputs of request code 12, signal output 13, output 14 of the device interrupt, start inputs 15,18, outputs 16, 17,19 of the pulse distributor. I 3.p.f-ly, 2 ill.

Description

OR, the output of which is connected to the first trigger input of the pulse distributor, the encoder output group is connected to the output group of the device request code and the address input group of the demultiplexer, which is so as to expand the application area of the device by servicing the pulse impulse , the first start input of which is connected to the first input of the element I, the output of which is connected to the third output of the distributor and the single input of the first

the trigger, the first output of the pulse generator is connected to the zero input of the first trigger, the synchronization input of the second trigger, and the fourth

It also contains a third register, a switch group and a second OR element, and a group of signal inputs of the device connected to a group of single inputs of the third register, a group of single outputs connected to the first

35

The pulse output of the pulse generator is connected to the second input of the element I, the left output of the second trigger is the fifth output of the pulse distributor, the second start input is connected to the information input of the second trigger,

ZO by the pulse distributor, the second

35

The pulse output of the pulse generator is connected to the second input of the AND element, the zero output of the second trigger is the fifth output of the pulse distributor, the second start input of which is connected to the information input of the second trigger,

/

23

/ d; ziz

/ 7

21

nineteen

AND

IS

yy

sixteen

I

20

Fie.2

13

Claims (1)

Claim 1, Priority device containing the first and second registers, a cipher · _j radiator, demultiplexer, pulse distributor, the first OR element, and the group of request inputs of the device is connected to the group of single inputs of the first register, the group of 1 zero inputs of which is connected to the group of outputs of the demultiplexer, the first - the fourth outputs of the pulse distributor are connected respectively to the signal output and the output 1 of the device interrupt, with the information input of the demultiplexer and the recording input of the second register, the group of outputs connected to the groups of inputs of the encoder and the first OR element 2, the output of which is connected to the first input of the start of the pulse distributor, the group of outputs of the encoder is connected to the group of outputs of the request code of the device and the group of address inputs of the demultiplexer, characterized in that, in order to expand the scope of the device by servicing requests with both relative and absolute priorities, it additionally contains a third register, a group of switches and a second OR element, and the group is signal x inputs of the device is connected to the group of single inputs of the third register, the group of outputs of which is connected to the first control inputs of the respective switches of the group, and the inputs of the second OR element, the output of which is connected to the second input of the start of the pulse distributor, the fifth output of which is connected to the second control inputs of the switches of the group, the group of outputs of the first register is connected to the information inputs of the corresponding switches of the group, the outputs of which are connected to the group of information inputs of the second register, 2, device according to π, 1, with the exception of the fact that the pulse distributor contains a pulse generator, the first and second triggers and the And element, and the unit outputs of the first and second triggers are connected with j first and second outputs of the pulse distributor, respectively, the first trigger input of which is connected to the first input of the And element, the output of which is connected to the third output of the distributor5 and a single input of the first trigger, the first output of the pulse generator is connected to the zero input of the first trigger, synchronization input position of the second trigger and the fourth output of the pulse distributor, the second output of the pulse generator is connected to the second input of the And element, the zero output of the second trigger is the fifth output of the pulse distributor, the second trigger input of which is connected to the information input of the second trigger,