SU525076A1

SU525076A1 - Command fetch block

Info

Publication number: SU525076A1
Application number: SU2058566A
Authority: SU
Inventors: Геннадий Алексеевич Иванов; Аркадий Яковлевич Костинский; Владимир Иванович Кардаш
Original assignee: Предприятие П/Я М-5339
Priority date: 1974-09-04
Filing date: 1974-09-04
Publication date: 1976-08-15

Description

Изобретение относитс к вычислительной технике и может быть использовано дл подключени к каналу абонентов, имеющих отличный от канала интерфейс ввода-вывода,The invention relates to computing and can be used to connect to a channel subscribers having a different input / output interface.

Известны блок выборки команды дл многоканальной системы обработки информации, содержащий регистры символов и команд, узел св зи, узел запросов и узел управлени оконечный блок дл многокапальной системы обработки информации, содержащий первый регистр команд, соединенный с информационной шиной, второй регистр команд, соединенный с шиной Команда и через регистр символов - с информационной щиной, и узел св зи с каналом, вход которого соединен с шиной Управление, а выход- со входом узла выдачи запросов, выход которого соединен с шиной Запрос 2A command block for a multi-channel information processing system is known, comprising a register of symbols and commands, a communication node, a request node and a control node; an end block for a multi-processing information processing system comprising a first command register connected to the information bus, a second command register connected to the bus The command and through the register of characters are informational, and the communication node with the channel, whose input is connected to the control bus, and the output to the input of the request-issuing node, the output of which is connected to the bus question 2

Взаимодейству с известными блоками, канал выдает команду, формат которой совпадает с прин тым в данном блоке. Однако известные блоки не могут быть подключены к каналу, использующему в своем интерфейсе ввода - вывода команды, формат которых отличаетс от прин того в данном блоке.Interacting with known blocks, the channel issues a command whose format matches that received in this block. However, known blocks cannot be connected to a channel that uses commands in its I / O interface, the format of which differs from that received in this block.

Целью изобретени вл етс подключение к каналу абонентов, имеющих отличный от канала интерфейс ввода-вывода. В описываемом блоке это достигаетс тем, что в него введены регистр номера абонента, выход которого соединен со входом узла выдачи запросов , узел улравлени приемом, входы которого соединены с выходами узла св зи с каналом к первох о регистра команд, а выходы соответственно со входами узла св зи с каналом , регистра символов, узла выдачи запросов, регистра номера абонента и второго регистра команд, счетчика приема, вход которого соедине с выходОлМ узла управлени приемом, а выходы со входами узла управлени приемом и узла выдачи запросов, шина Адрес, соединенна с регистром номера абонента, шина Смена управл ющего слова, соединенна с узлом св зи с каналом.The aim of the invention is to connect to a channel subscribers having a different input / output interface. In the block described, this is achieved by entering the register of the subscriber's number, the output of which is connected to the input of the request issuing node, the receiving control node, the inputs of which are connected to the outputs of the communication node with the channel to the first command register, and the outputs respectively with the inputs of the node communication with the channel, the character register, the query issuing node, the subscriber number register and the second command register, the reception counter, whose input is connected to the output of the reception control node, and the outputs with the inputs of the reception control node and the request node , Address bus, coupled to register a subscriber number, tire Changing control words, a node coupled to a communication channel.

Claims

The subscriber number register stores the subscriber number for which the command is sampled. The reception control node and the reception counter control the reception of a command of the desired format. The listed blocks, in combination with the known ones, allow organizing the reception of commands for a large number of subscribers having a different input-output interface. The drawing shows the described block Information Bus 1, Bus Control 2, Bus Control word change and woman Request 4 are connected respectively to the inputs of the first command register 5 and the character register 6, the input and output of the communication node 7 with the channel, the output of the request issuing node 8 . The input of the request issuing unit 8 is connected to the output of the register 9 of the subscriber number, the inputs of which are connected to the bus Address 1O and the output of the receiving control unit 11. Other outputs of node 11 are connected to inputs of the register of symbols 6 of nodes 7 and 8 of the reception counter 12 and the second command register 13. The output of the first command register 5 is connected to the input of the reception control node 11. The output of the register of symbols 6 is connected to the input of the second command register 13. The outputs of node 7 are connected to the inputs of nodes 8 and 11. The output of reception counter 12 is connected to the inputs of nodes 11 to 8. The output of the second command register 13 is connected to the bus Command 14. Channel information bus 1 sends the command code that is received into the first command register 5. This command is a start command for the command selection block. After issuing a command, the channel sends a trigger signal on the Control 2 bus. With this signal, node 7, through node 11, records the subscriber number with which the channel will interact, into the subscriber number register 9. The subscriber number is provided by the channel to the Address 1O bar. At this point, the channel's start-up cycle of the command sampling unit ends. After receiving the trigger signal, the node 7 generates a signal on which the node 8 generates the first request B channel, and the node 11 translates the reception counter 12 into state 1. This means that the command fetcher unit operates in the command reception mode. Node 8 issues a request to the bus. Request 4. The channel recognizes this request as a request for a conventional peripheral device to exchange a data symbol. However, in this case, the control word stored in the channel and output the command of the subscriber’s command In response to the first request, the channel sends the first symbol containing the high bits of the subscriber command code over the information bus 1. A control signal is sent over bus Control 2, identifying the channel to issue a symbol. On this signal, node 11 generates a symbol reception strobe into the character register 6, and then rewrites the character from the character register 6 into the second command register 13. Simultaneously with the census, the reception counter 12 is transferred to state 2, indicating that the character is stored in the second command register part of the subscriber command. After that, the node 8 on the bus. Request 4 sends to the channel the next request for the exchange of another symbol containing the second part of the command. The introduction of this symbol in the second command register 13 is accompanied by the same procedure. Reception counter 12 is transferred to state 3. Requests to the channel are issued until in the second command register 13 the subscriber’s executive command code is generated. This corresponds to a certain status of the reception counter 12, according to which the node 8 forms another request. When the channel goes to suspend, during which the symbol is output to the command selector unit, node 7 sends a change to control word 3 on the bus. On this signal, the channel, instead of issuing a symbol on a control word, changes this control word. The new control word defines the boundaries of data exchange with the subscriber according to the command that the command selection block has formed. After issuing a signal to the bus. Changing the control word G 3, the node 11 generates a reset pulse for the reception counter 12, and also blocks the issuance of new requests to the channel. The state of reception counter 12 indicates that command 14 has generated the subscriber’s executive command code, and the command fetch block is entered and will not respond to the symbols issued by the channel to information bus 1. This eliminates the possibility of distortion of the subscriber’s command code stored in the second command register 13. Thus, the command selection block allows to receive from the channel a subscriber's command, the format of which is larger than the format of the command issued by the channel in one package. This makes it possible to connect to the channel subscribers who have all the difference between the input-output interface and another command format. Invention The command selection block containing the first command register connected to the information bus, the second command register connected to the command bus and through the character register to the information bus, and the communication node with the channel whose input is connected to the Control bus, and the output is with the input of the request unit, the output of which is connected to the Zalros bus, characterized in that, in order to connect subscribers having a different input-output interface, the register of the subscriber number, the output of which is connected to the input of the node, is entered into it requests, the reception control node, whose inputs are connected to the outputs of the communication node with the channel and the first command register, and the outputs respectively to the inputs of the communication node with the channel, the character register, the request node, the subscriber number register, and the second register commands, the reception counter, whose input is connected to the output of the receiving control node, and the outputs to the inputs of the receiving control node and the request issuing node, the bus Address connected to the subscriber number register, the bus Control word change connected to the communication node with the channel. Sources of information taken into account in the examination: 1. US Patent No. 36О3933, cl. 340172 .5, 1972.

2. US Patent No. 34OO372, cl. 340172 .5, 1971.