SU1019427A1 - Digital computer interface device - Google Patents

Abstract

A DEVICE FOR PAIRING DIGITAL COMPUTING MACHINES, containing a priority node, a group of elements And receiving information, a group of elements AND receiving service signs, a group of elements And transmitting a working signal, a group of elements And transmitting an error signal, two groups of elements OR, a block of main amplifiers, a group of elements Both transmissions of service signs, a group of elements AND transmissions of information1 (AI, and two OR elements, with the input group of the priority node being connected to the input request group of the device, and the group of outputs from the first the first groups of inputs of the elements And groups of reception of service signs and reception of information, and the first inputs of the corresponding elements of the transfer groups with, the test of processing and transmission of the error signal, the group of inputs of the elements OR of the first group are connected to the group of outputs of the elements AND of the group of reception of service signs, and the group of outputs - to the first group of inputs of the trunk amplifier unit, the first group of outputs of which is connected to the first group of inputs of elements AND of the group of transmission of service features, the group of outputs of which. is a group of outputs of service attributes of a device, a group of inputs of the second group of elements OR is connected to a group of outputs of elements AND a group of information reception, and a group of outputs - with a second group of inputs of a block of main amplifiers, the second group of outputs of which is connected to the first group of inputs of elements AND of a group information transfer, the group of outputs of which is the group of information outputs of the device, the group of inputs of the first element OR is connected to the group of inputs of the device error signals, and the output - with the first input the house of the trunk amplifier unit, the first output connected to the second inputs of the elements AND error signal transmission group, whose outputs are the output group of the device error signals, the input group of the second element OR is connected to the input group of the device output signals, and the output is connected to the second input of the main amplifier unit , the second output of the AND signaling group of the testing signal, which is connected to the second inputs of the elements, the outputs of which are a group of the output signals of the device testing, the second output of the output node Priority is connected to the third input of the trunk amplifier unit, characterized in that, in order to improve the performance of processing priority messages, the decoder of service signs, a group of AND signals of readiness signals, a group of service signs registers, a group of information registers, a third element OR are entered into it. and a pulse shaper, and

Description

The group of service signs register output group is connected to the second group of inputs of the elements AND group of service signs, and the input group is a group of device service signs, the group of information register outputs is connected to the second group of input elements of the information receiving group, and the group of inputs is a group of information inputs of the device, the first inputs of the elements And the group of transmissions of ready signals are connected to the third output of the block of amplifiers, the outputs - with

a group of information readiness outputs of the device, and second inputs with a group of outputs of the decoder of service signs and second groups of inputs of elements AND groups of transmission of service signs and information, the third inputs of which are connected through the pulse shaper to the output of the third element OR, the group of inputs of which is a group of inputs readiness of device reception, the group of inputs of the decoder of service signs is connected to the first group of outputs of the main amplifier unit, the second output of which is connected to the input priority node.

The invention relates to digital computing and can be used to create multi-machine computing systems.

Devices are known for interfacing computers with a system containing an exchange unit, a tuning register, a shift unit, AND and OR elements, a request processing unit, a control unit and a device number block with corresponding connections. The rest of these devices are the complexity of the structure and high costs. equipment.

The closest in technical essence to the invention is an interface device containing a priority scheme, a group of AND elements, a group of AND transmissions, main amplifiers and IL elements, the outputs of a priority circuit connected to the corresponding inputs of a group of I elements of reception, the outputs of which are connected to the inputs of the corresponding OR elements, the outputs of which are connected to the inputs of the trunk amplifiers, the outputs of the group of elements AND of the transmission are connected to the corresponding information outputs of the device wa 2.

A disadvantage of this device is the low processing performance of priority clutters, since the procedure of exchanging non-priority messages ends only after issuing the entire array of information intended for the exchange. If, during the exchange of information, a higher priority subscriber, the source of information, needs to exchange information with one of the subscribers involved in the exchange, he will have to wait for the end of the exchange session, and the waiting time may be different depending on the size of the array of information transmitted;

The aim of the invention is to improve the performance of processing priority messages by reducing the waiting time for processing requests of the most priority subscribers - sources of information.

The goal is achieved by the fact that a device containing a priority node, a group of information AND receive elements, a group of AND premature service attributes, a group of AND transmissions of a working signal, a group of AND transmissions of an error signal, two groups of OR elements, a trunk amplifier unit, a group elements and transmission service signs, a group of elements and transmission of information and two elements OR, the group of inputs of the priority node is connected to the group of inputs of the device request, and the group of outputs - with the first groups inputs of elements And groups of reception of service signs and reception of information and the first inputs of the corresponding elements And groups of transmission of the test and transmission of the error signal, group of inputs of elements OR of the first group is connected to the group of outputs of elements AND of the group of reception of service signs, and group of outputs to the first group the inputs of the main amplifier unit, the first group of outputs of which is connected to the first group of inputs of the elements AND of the service characteristics transmission group, the group of outputs of which is the group of outputs with device signs, the group of inputs of the elements OR of the second group is connected to the group of outputs of the elements AND of the information receiving group, and the group of outputs to the second group of inputs of the block of main amplifiers, the group of outputs of which is connected to the first group of inputs of the elements AND of the transmission group of information, group the outputs of which is a group of information output devices, the group of inputs of the first element OR is connected to the group of inputs of the device error signals, and the output is connected to the first input of the trunk amplifier unit th, the first terminal of the error signal transmission group I connected to the second inputs, the outputs of which are a group of device error signal outputs, the group of inputs of the second element OR is connected to the group of inputs of device working signals, and the output - the second input of the trunk amplifier unit, the second output connected to the second inputs of the elements AND of the transmission group of the test signal, the outputs of which are a group of outputs of the device test signals, the second output of the node priority is connected to the third input of the unit trunk amplifiers, a decoder of service signs, a group of elements AND signal transmission ready, a group of registers of service signs, a group of information registers, a third OR element and a driver and a pulse, with the group of outputs of registers of service signs of a group connected to the second group of inputs of elements AND groups reception of service signs, and the group of inputs is a group of inputs of service characteristics of the device, the group of outputs of the group information registers is connected to the second group of inputs of elements And groups The reception of information is given, and the group of inputs is entered by the group of information inputs of the device, the first inputs by the element and the transmission group of ready signals are connected to the third output of the main amplifier unit, the outputs to the output information readiness group of the device, and the second inputs to the output decoder group and the second groups of inputs of elements And groups of transfer of service signs and information transfer, the third inputs of which are connected through a pulse shaper to the output of the third element OR, group strokes which is a group vho-. The readiness readings of the device, the group of inputs of the decoder of service signs are connected to the first group of outputs of the main amplifier unit, the second output of which is connected to the input of the priority node. FIG. 1 shows a block diagram of the device; presented as a reception unit; . on fig., 2 - the same, in the form of a transmission unit. The device contains a priority node 1 connected by a group of inputs to the outputs of a group of 2 subscriber sources, an amplifier 3. Groups of trunk amplifiers, a group of t elements And receiving service signs, a group of 5 elements And receiving information, a group of 6 and 7 elements And transmitting signals of testing and error , registers 8 service signs of the group, first group 9 elements OR, amplifiers 10, registers 11 group information, second group 12 elements OR, amplifiers 13 16, decoder 17 service signs, groups 18, 19 and 20 elements AND transmissions of service n iznakov, information and readiness signals, the third element OR 21, the shaper 22 pulses, a group of 23 receiver subscribers, the first element OR 2, the amplifier 25, the second element OR 2b, amplifiers 27-29, buses 30, device request inputs, bus 31 readiness information the second output of node 1 priority, bus 32 input signals ready to receive the device. Amplifiers 3, 13-16, 25, 27-28 form a block 33 of trunk amplifiers, the inputs of the input amplifiers 25, 27, 3 iO and 13 are connected respectively to the first, second, third inputs and the first and second groups of inputs of block 33, and their outputs, respectively, through the communication lines with the inputs of output amplifiers 15, It, 29 16 and 28, the outputs of which are respectively the first, second, third outputs and the first and second groups of outputs of the 33 Device unit operate as follows. If several subscribers - sources of information are ready to give information to subscribers - receivers of information, then on buses 30 there appear request signals. At the same time, the information prepared for issuing information to subscribers - the information receiver 23 to the corresponding registers 8 and 11 - is transmitted. The information transmitted to the registers 8 includes the subscriber number of the information source and the subscriber number of the information receiver. After setting the request signals on buses 30 and transferring information to registers 8 and 11 subscribers, the information sources switch to executing other programs, since organizing and transmitting messages to subscribers receiving information is performed by the device. Node 1 resolves conflicts, generates and issues an information readiness signal via bus 31 which, through amplifiers 3 and 29, enters the inputs of elements AND of group 20. Simultaneously with issuing an information readiness signal, node 1 allows information output from perHcjpoe 8 and 11 to the source subscriber information that has the highest priority at the moment, for example, abonent 2 .. The number of information from register 11. passes through the elements AND 5.1 of the information word}, elements OR 12, trunk amplifiers 13.1-13.1, 28.1-28 the corresponding inputs of elements AND of group 19. Service information from register 8.1 passes through elements of AND group 4 (k is the word width of service signs), elements OR of group 9, trunk amplifiers 10 and 16 to the decoder 17 and to the corresponding inputs of elements AND of group 18. . In accordance with the subscriber number of the information receiver, for example, 23.2, at one of the outputs of the decoder 17, an enabling signal appears, which is fed to the corresponding inputs of elements AND groups 18-20. The signal readiness information through the element And 20.2 enters the desired subscriber 23.2 - receiver information. If the given subscriber 23.2 is ready to receive information, then according to the information readiness signal, the program account is interrupted and this subscriber 23.2 proceeds to receive information from the device. Subscriber 23.2 sends to the bus 32.2 a ready-to-receive information signal that is received through the OR 21 element to the shaper 22, which develops a strobe signal that opens And 18.2, 19.2 and 20.2 elements and allows the transmission of service and numeric information from the device to the required subscriber 23.2o Immediately after receiving the information word, the subscriber 23.2 outputs to the device a test signal to the input of the element OR 2b. After receiving the information word and issuing a test signal, the subscriber 23.2 returns to the interrupted program. Further work on the exchange of information is organized by the device. The test signal through element i OR 26, trunk amplifiers 27 and lA, element 6.1. Is output from the device to subscriber 2.1 — the source of information, and also goes to the node to suppress the processed request from subscriber 2.1 — source information that issued the first information word. After the processed request is quenched, node 1 selects the next highest priority request and the exchange process is repeated. Subscriber 2о1 - a source of information that received a test signal (evidence that the information word was received by subscriber 23.2; the receiver of the information and you can issue the following information packet), sends the following information word (numeric and service information) and the request signal to the device, and the exchange process is repeated. If the required subscriber 23.2 is busy or open / yuchen, i.e. it does not receive a working signal, indicating that the information package has been received for a certain time interval, then subscriber 2.1 - the source of information gives a signal to bus 30, which is used for extinguishing the request at node 1, the exchange procedure with the specified subscriber receiver information 23.2 is completed. Each information word received by subscriber 23.2 - by receiver

information is checked in two. In case of an error, subscriber 23.2 - n {the information receiver issues to the device, an error signal and returns to the interrupted program. The error signal through the element OR 2, the reduction of the waiting time, the processing of the amplifier amplifiers 25 and 15, the highest priority requests corresponding to the corresponding element AND of the group of 7 subscribers - information sources is transmitted from device to subscriber 2.1 through comparison with the known device.

loigtay 8

a source of information. Thereafter, either the repetition of the incorrectly received word "or the termination of the exchange procedure" is repeated. 5 Thus, the proposed mouth, a solver for (Conjugation provides

Claims (1)

DEVICE FOR COUPLING DIGITAL COMPUTER MACHINES, containing a priority node, a group of elements and receiving information, a group of elements and receiving service signs, a group of elements and transmitting a working signal, a group of elements and transmitting an error signal, two groups of OR elements, a block of main amplifiers, a group of elements AND transmission of service signs, a group of elements AND information transfer and two OR elements, the group of inputs of the priority node being connected to the group of inputs of the request device, and the group of outputs with the first by the pins of the inputs of elements AND groups of reception of service signs and reception of information and the first inputs of the corresponding elements AND groups of transmission of the signal for working out and transmission of the error signal, the group of inputs of elements OR of the first group is connected to the group of outputs of elements AND of the group of reception of service signs, and the group of outputs to the first group the inputs of the main amplifier block, the first group of outputs of which is connected to the first group of inputs of elements AND of the transmission group of service features, the group of outputs of which is a group of outputs with illiterate features of the device, the group of inputs of the second group of elements OR is connected to the group of outputs of the elements AND corpses of receiving information, and the group of outputs is connected to the second group of inputs of the block of main amplifiers, the second group of outputs of which is connected to the first group of inputs of elements AND of the group of information transfer, group of outputs which is the group of information outputs of the device, the group of inputs of the first OR element is connected to the group of inputs of the device error signals, and the output is with the first input of the main amplifier block the first output connected to the second inputs of the AND elements of the error signal transmission group, the outputs of which are the group of the output signals of the device error signals, the group of inputs of the second OR element is connected to the group of inputs of the device’s working signals, and the output is connected to the second input of the main amplifier block, the second output of the connected to the second inputs of the elements AND groups of the transmission of the working signals, the outputs of which are a group of the outputs of the working signals of the device, the second output of the priority node is connected to the third input of the block ma istralnyh amplifiers, characterized in that, in order to increase the processing capacity of priority messages, it entered the service decryptor attributes, the group of AND gates transmission readiness signals of overhead signs registers group information registers, and the third OR gate pulse generator, wherein 10191) 27 the group of outputs of the service attribute registers of the group is connected to the second group of inputs of elements AND of the reception group of service signs, and the group of inputs is a group of inputs of the service attributes of the device, the group of outputs of information registers. the group is connected to the second group of inputs of elements AND groups of information reception, and the group of inputs is a group of information inputs of the device, the first inputs of elements AND groups of transmission of readiness signals are connected to the third output of the main amplifier block, the outputs are connected to the group of readiness outputs of the device information, and the second inputs - with the group of outputs of the descrambler of service signs and the second groups of inputs of elements And groups of transmission of service signs and information, the third inputs of which are connected via spruce pulse output of the third OR gate, a group of inputs of which is a group of readiness inputs receiving apparatus, a group of inputs of the decoder service features connected to outputs of the first group unit main amplifier, a second output connected to the input node priority.