SU1293735A1 - Device for information output on telegraph apparatus - Google Patents

Abstract

The invention relates to computer technology and can be used, for example, in computer systems for outputting information from a computer. The aim of the invention is to expand the class of tasks to be solved by providing the possibility of transmitting input information of the device to the telegraph apparatus with conversion of codes or without conversion, as well as the possibility of autonomous testing of the telegraph line and apparatus. The goal is achieved by the fact that the source simulation block 6 is entered into the device containing the input register 2, code conversion block 4, shift register 7, block 3 for specifying the conversion mode, control block 5, generator 9 of pulses, switch and output key consisting of a simulation register, a toggle register, a device operation mode switch, and a simulation shift register mode switch. 1 hp f-ly. 6 Il. From sl 1C to from 00 SP Fi. one

Description

The invention relates to computer technology and can be used, for example, in computer systems for outputting information from a computer.

The purpose of the invention is the extension of the class of tasks to be accomplished by providing the possibility of transmitting the device’s input information to the telegraph apparatus. conversion codes or without conversion, as well as the possibility of autonomous testing of the telegraph line and apparatus.

Fig. 1 shows a block diagram of the device} in Fig. 2 - a functional diagram of a code-conversion unit; FIG. 3 is a functional block diagram of the setting of the conversion mode; FIG. 4 is a functional block diagram of the source simulation; Fig. 3 is a functional block diagram of the control unit; Fig. 6 shows a functional circuit diagram of a communication unit with a computer.

The device is connected to a computer through a computer communication unit 1 and contains an input register 2, a unit 3 specifying a conversion mode, a code conversion unit 4, a control unit 5, a source simulation unit 6, a shift register 7, a switch 8, a generator 9 pulses, output key 10, bus 11 communication with the telegraph apparatus, bus 12 of the interface and telegraph apparatus 13.

The code conversion unit 4 consists of a group of elements AND 14, an encoder 15 and a switch 16.

The conversion mode setting unit 3 is executed on an encoder (ROM) 17 and register 18.

The source imitation unit 6 is formed from a toggle register 19, a device mode switch 20 and a shift imitation register 21 (FIG. 4).

The control unit 5 consists of a multiplexer 22, a read-only memory (ROM) 23 and a register 24..

Unit 1 is connected to a computer and contains amplifiers-receivers 25 ShN-K, amplifiers-receivers 26 of the identification and control signals, amplifiers, transmitters 27 of the SHIN-A signals, amplifiers-transmitters 28 of the identification and control signals, a decoder 29. commands, descrambler 30 addresses scheme

31 control, multiplexer 32, ROM 33 and register 34.

Figure 4 also shows the switch 35 of the imitation register shift mode.

I

Computer communication unit 1 is designed

for the organization of the exchange of numerical and command information with a computer. Input register 2 is used to store data received through unit 1 from a computer. The conversion mode setting unit 3, depending on the code of the command received from the computer, generates output signals determining the code conversion mode. Code conversion unit 4, depending on the signals received from block 3, organizes the translation or conversion of the code received from the computer.

Block., 5 provides the formation of signals that control the operation of the device. Simulation unit 6 serves to form a test sequence, as well as to ensure transmission of this sequence. Shift information register 7 is designed to convert parallel code to serial. Switch 8 is designed for selection / information transmitted to the terminal telegraph. The pulse generator 9 generates clock signals, synchronizing the operation of the device. Output key 10 is used to form current feeds arriving at the telegraph unit. Bus 11 serves to connect the computer. Elements 14 and 14 serve to organize each byte transmission of the byte received from the computer information to the input of block 15. The encoder 15 serves to track the received code into an output code and can

be implemented as a rom. Using the switch 16, depending on the signals from block 3, information is transferred to the register 7, or from the input register

2, or from the encoder 15. The encoder 17 is designed to generate signals that determine the conversion mode, depending on the code of the incoming command, and can be implemented

like a rom. Using register 18, signals are stored, defined by the conversion mode, for the duration of the current command. Tumbler register 19 is intended

to set the test information. The switch 20 determines the source of information transmitted to the terminal telegraph unit 13 and enables or blocks the operation of the register 21. The switch 35 mode of the shift register is used for the mode of operation of the register 21. The register 21 serves to convert the parallel code of the test information to serial.

Block 5 is implemented as a firmware automaton. The multiplexer 22 serves to implement conditional transitions. The ROM 23 serves to store a set of microinstructions. Output register 24 is designed to store the current microcommand. The information inputs of the multiplexer 22 are connected to the buses of the input signals of block 5, i.e. signals, which are transitions from one state to another. The output of the multiplexer 22 is connected to the lower address input of ROM 23, the remaining address inputs of which are signals from register 24. In each state of the automat to which the selected cell of ROM 23 corresponds, one of the input signals of block 5 is connected to the lower address input. The connected bus is produced in the microcommand format field. Possible format of micro-commands is presented below.

where AMK is the address field of the following microcommand;

AMX - field address of the connected bus input signals;

UPR is the field of output signals of the control device. If an input signal is present on the selected bus (i.e., 1), the automaton enters a state in the lower address range of which 1. is present. If there is no input signal on the selected bus (i.e., O), then the automaton. transitions to the state in the lower address bit of which O is present. For example, let the address field of the next microcommand represent combination 0011, the address field of the input signal bus being connected.- 010. If the second input of multiplexer 22 contains an input signal (i.e. 1), the transition is 293735

at address 00111, if the input signal is absent, the transition is performed at address 00110. All the other 5 conditional transitions are implemented similarly. To generate the output signals of block 5, horizontal firmware is used, i.e. Each bit of the field of the output signals corresponds to a certain output signal of unit 5.

Amplifier receivers 25 and 26 serve to amplify the signals SIN-K and

identification and control signals from the computer; Transmitter amplifiers 27 and 28 serve to amplify the signals of SIN-A and to identify and control the signals entering the computer.

The decoder commands 29 is used to determine the code of the incoming command and the formation of the corresponding output signals. The address decoder 30 is designed to decrypt the address received from the computer and: generate corresponding signals depending on the results of the decoding. Using scheme 31, which is a modular convolution scheme

two, control of information received from a computer is performed. The multiplexer 32, the ROM 33 and the register 34 are a firmware automaton, the operation and assignment of individual nodes of which are similar to those described

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The device works as follows

In the initial state, all registers of the device are reset to zero (the reset circuits are not shown).

The device operates in two modes: Operation and Test, and is determined by the position of the switch 20.

In the operation mode, registration is carried out on the telegraph apparatus 13 of information received from a computer. Depending on the command received by the device, the incoming information can be converted and then registered or recorded without conversion.

In the Test mode, the information specified using the toggle register 19 is recorded.

The computer operation press, connected to bus 12, introduces a sequence of signals of the initial sample, about 1 time in block 1, the address arrives, and after identifying the address as your device, the command code arrives.

The code of the incoming command via block 1 is fed to the input of the encoder 17. If the received command is associated with data transmission, then at its output

Signals defining the mode of conversion are formed, which are recorded in register 18. Signals from the output of register 18 are fed to the inputs of the switch 16. However, depending on the code of the command received, either the outputs of the input register are connected to the information inputs of register 7 2 (when transmitting information without conversion), or the outputs of the encoder 15 (when transmitting information with conversion). In the process of transferring all the data coming from the computer through block 1, are initially recorded

in the input register 2. Further, the signals from block 5 through the elements And 14 to the input of the encoder 15, the data is received in the fine. From the output of the switch 16, according to the signals from block 5, the information is recorded in register 7.

Further, according to the signals from block 5, register 7 sequentially shifts the recorded information. From the output of the register 7 with the frequency of telegraphic dressing, a bit-by-bit information is transmitted to the input of the output key 10 through the switch 8

After the last bit of the information symbol is transmitted to the input of the telegraph apparatus 13, the next tetrad arrives at the input of the encoder 15 via the elements of block 5 via elements 14. After the transfer. On the telegraph unit 13 of this tetrad, a request is made to transmit the next data byte from the computer and write it to the input register 2 with the subsequent transfer to the telegraph unit 13 in the same way as described.

In the absence of the need to convert information (as evidenced by the code of the command received from the computer and the appearance of the corresponding signal at the register 18 output), the data from the register 2 output

through the switch 16, directly to the input of the register 7. By control signals from block 5, data is recorded into the register 7. Next, the operation of the device is similar to that described above.

In the Test mode using the toggle register 19, the test information is set, which, if there is a corresponding signal that comes from the switch 35 on the signal from the output of the generator 9, is written to the register 21.

SC mode, B1: ha for register 21 us-. dips off when there is an appropriate signal that comes from switch 35.

Using the switch 20, the output of the register 21 is connected to the input of the output switch 10. In the presence of signals from the output of the generator 9, which arrive at the frequency of the current parcels,

13 bits of the specified symbol are transmitted to the telegraph apparatus sequentially. Since the output and the input of the serial code of the register 21 are connected, after transmitting the stop parcel, the next starting parcel of the specified character is transmitted, and thus the specified character is cyclically transmitted.

Claims (2)

1. A device for outputting information to a telegraph apparatus containing an input register, an input connected to the information input of the device, a conversion mode setting unit, an input connected to the input setting of the device mode, and the first output is with the control mode input of the control unit, the start input and the first output of which are the start input and device readiness output, and the clock input is connected to the first output of the pulse generator, code conversion unit and information shift register, the clock inputs of which are connected respectively to the second and the third control module control switch, the output connected via an output key to the input of the telegraph apparatus, characterized in that, in order to expand the class of tasks of the device, Blo is entered into it to the source simulation, including a simulation shift register, a toggle register, a device mode switch and a simulation shift register switch, the first information input of the switch connected to the output of the serial code of the simulation shift register, the clock and information inputs and the recording input of which are connected respectively to the second output of the pulse generator and the outputs of the toggle register and the switch mode of the simulation shift register, and the read input to the output of the switch p device modes and the address input of the switch, the second information input of the serial code of the information shift register connected to the output, the information input which is connected to the output of the block, code conversion, information input and input of the mode of which are connected respectively to the output of the input register and the second output of the block specifying the conversion mode. 2. The device according to claim 1, about t and that the code conversion unit contains a group of elements AND, an encoder and a switch, with the information inputs of the elements AND of a group connected to the first information input of the switch and the information input of the block And the groups respectively to the clock input of the block and through the encoder to the second information input of the switch, the control input and output of which are respectively the input of the block mode and the output of the block. fig 2 tpye.J / 1s5lokav Remote control .) FI.5 Interface bus 72 L G t  Tokty Editor L. Pchelinska Compiled by V. Vertlib Tehred L.Oleynik Proofreader 0.Lugov Order 388/54, Circulation 673 Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, Projecto st., 4 V5lok8 gOi / e.- fi.v