SU1566337A1 - Device for controlling information input - Google Patents

Abstract

The invention relates to computing and can be used to control the input of information into a two-wire half-duplex communication channel. The aim of the invention is to expand the functionality of the device by providing work with an additional information channel. The device for controlling information input contains the first code converter 1, pulse generator 2, register 3, decoder 4, first 5 and second 6 elements AND, data buffer 7, second 8 and third 9 code converters, control unit 10, switch 11, fourth 12 code converter, counter 13, third 14 And element, first to third triggers 15-17, fourth to ninth And 18-23 elements, delay element 24, pulse generator 25. The device works with an additional information channel for transmitting digital data in consecutive d oichnom code. 3 il.

Description

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work with an additional information channel. The device for controlling the input of information comprises a first code converter 1, a pulse shaper 2t register 3, a decoder 4; the first 5 and second 6 elements And, the data buffer 7, the second 8 and third 9 transducer codes, control block 10, the switch 11,

the fourth 12 code converter, counter 13, the third 14 element And, the first to the third triggers 15-17, the fourth to the ninth elements And 18-23, the delay element 24, the pulse generator 25. The device works with an additional information channel digital data transmission in serial binary code. 3 il.

The invention relates to computing and can be used to control the input of information into a two-wire half-duplex communication channel.

The purpose of the invention is to expand the functionality of the device.

Figure 1 is a schematic diagram of a device for controlling information input; on figv diagram pulse shaper; FIG. 3 is a control block diagram.

The device for controlling information input contains the first 1 code converter, the pulse shaper 2, register 3, decoder 4, the first and second elements 5 and 6, data buffer 7, the second 8 and third 9 code converters, control block 10, switch 11, the fourth 12 transducer is kodu, counter 13, the third element is AND 14, the first to third triggers 15–17, the fourth to ninth elements AND 18–23, the delay element 24, the generator of 25 pulses. Positions 26 to 103 designate the outputs and the corresponding inputs of the device nodes.

The pulse shaper 2 (FIG. 2) contains the fourth trigger 104, the second counter 105, the decoder 106, from the tenth to the twelfth elements AND 107 - 109. The control unit 10 (FIG. 3) contains the first element OR 110, the thirteenth to the twenty-fourth elements AND III - 122, from second to fifth elements OR 123 - 126.

The device works as follows.

The inputs 97 and 98 from the two-wire communication channel receive 11 - bit information bytes with a time interval of 2 T, where T is the transmission time of one bit of information. Pos

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five

0

five

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five

When the last eleventh bit arrives at output 35 of converter 8, a start signal is generated from shaper 2. The first pulse at output 3b from shaper 2 records the byte received from the communication channel into the buffer register of the converter 8, where it is stored until the last bit of the next byte arrives. If an instruction arrives Write down the pulse at output 36 of driver 2 at outputs 26 to 34 of converter 8 at the moment of action. An indication code is written Record, which results in signals at outputs 45 and 50 of the decoder 4. If there is a signal at output 50 of the decoder 4 driver 2 additionally produces pulses at the outputs 39 - 41. At the time of the pulse at the output 39 of the pulse generator 2, the counter 13 and triggers 15-17 are reset. At the moment of the pulse action on the 40 generator 2, the record trigger is set to 1 3, which leads to the appearance of a signal at its output 2. At the time of the pulse at the output 41 of the driver 2, the converter 9 starts. At this time, the code from the outputs 56 external to the device of the driver shaper enters the input of the converter 9 condition At the outputs 102 and 103 of the converter 9, signals are output to the two-wire popup-duplex communication channel. After issuing the last bit, the signal from the control output of the converter 9 through the element 20 acts on the counting input of the counter 13. When the first data word is received from the communication channel to the inputs 97 and 98, the first data word is started

worldizer 2, but at its outputs 39 41 pulses are not generated, since the input 50 does not receive a signal of the indication sign

At the moment of action of the pulse at the output 36 of the imaging device 2, the data word is written into the buffer register of the converter 8, and at its output 26 the code O is set, which is a sign of the data word. At the time of the pulse at output 37 of generator 2, the first data word is recorded in the first register of block 7. Pulse from output 38 of generator 2 acts through element 5 on the first counting input of counter 13, preparing buffer 7 to receive new data words.

The operation of the device when receiving the second and third words of data occurs in a similar way.

The operation of the device when receiving instructions. The end of the transfer is as follows. After the start of the imaging unit 2, at the time of the pulse, its output 36 records the indication code. End of transfer to the buffer register of the transformer 8, which causes signals at outputs 46 and 50 of the decoder 4. At the moment of pulse action, the generator 39 output clears the counter. 13, triggers 15 and 16. At the time of the pulse at the output 40 of the driver 2, the register 3 is reset. At the time of the pulse at the output 41 of the driver 2, the converter 9 starts, which gives to the communication channel The sequence byte code states.

The operation of the device when receiving an instruction. Interrogate occurs in a meaningful way. Operation of the device when receiving an indication. The main refinement consists in transmitting to the communication channel the words of the updated state and the word of the state input to the inputs 56 and 57 of the switch 11.

The operation of the device when receiving an indication of Read is to transfer by the converter 9 codes to a communication channel a code from the outputs 55 of the converter 1 at the output 58 of the switch and one word of the state received at the input 57 of the switch 11.

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The operation of the device during the reception of the unit is calculated. Read the Ml as follows. In the moment of the pulse at the outputs of the h 9 and 40 formed 2, the meter count 13 and register 3 are produced. The pulse from the output 41 of the Former 2 produces, through element 6, the start of the converter 9, which transmits three bytes from block 7 and one word of the state to the channel. The switching of the counter 13 is effected by a signal received from the control output of the converter through the element 20 to the counting input of the counter 13.

The operation of the device at the reception of the pickup Calculate M is as follows. At the time of the CE-THP pulse at the output 36 of the driver 2, control signals are generated at the outputs 50 and 51 of the decoder 4. At the time of the pulse at the output 39 of the driver 2, the counter 13 and triggers 15 and 16 are reset. At the time of the pulse at the generator 40 output 2 is set to 1 corresponding to the instruction. Consider M flip-flop in pt-pj; f-rpe 3 and flip-flops 15 and 16. The converter 9 is not started because the signal from the output 41 of the driver 2 through element 6 cannot pass.

The signal from the output 76 of the element 24 permits the passage of pulses from the output 83 of the generator 25 through the element 18 to the counting input of the counter 13, which continues until a signal appears at its output 75. The trigger 17 is set at 1 n the output pulse 71 and is reset by the pulse on the loop 73 of the counter 13. To synchronize the operation of the source of the successive code entering the input 100 of the converter 12, the device generates two signals, one of them comes from the output 60 of the flip-flop 15, and the other is produced by the element 14. 17 abatyvani trigger element 14 transmits a control output device 101 nine pulses for receiving the successive 9-bit byte and its transformation - Vani. After receiving the ninth bit at the time of the pulse at the output 74 of the counter 13, the element 22 generates a start signal for the converter 9.

During the operation of the trigger 15 in block 10, the element 122 generates a signal for passing through the switch 1 1 code from the output 59 of the converter 12. The counter 13 finishes its work after the signal at the output 75 and the signal at the control output of the converter 9. This signal passes 4eiiz element 21 to the input of the installation in the On trigger 15. Resetting the trigger 15 causes the counter 13 and the trigger 17 to reset, and at the time of the pulse at the output 9b of the generator 25 and resetting the trigger 16. However, the converter 9 continues to operate, as it receives the signal from the elements 121, 123, 118 125, 126-block 10, and the operation of the device continues in the same way as when receiving the instruction Read.

The technical advantage of the image is to expand the functionality by providing an additional information channel for transmitting digital data in a serial binary code.

Claims (1)

Invention Formula A device for controlling information input, comprising a first code converter, a second code converter, the first output of which is connected to the first input of the data buffer and the first input of the decoder, the second input of which is connected to the second input of the data buffer and the second output of the second code converter, the third input of which is connected to the first output of the pulse generator, the register, the first input of which is connected to the first output of the decoder, the second output of which is connected to the second input of the register and the second input of the control unit The third and fourth inputs of which are connected respectively to the third and fourth outputs of the decoder, the first output of the register is connected to the fourth input of the data buffer, the output group of which is connected: the first group of inputs of the switch, the third group of inputs of which is connected to the output group of the control unit the tenth input which is connected to the first output of the counter, characterized in that, in order to expand five 0 five 0 five neither functionality due to provision of work with an additional channel, the third and fourth code converters, pulse shaper, the first, second and third triggers, from the first to the ninth And elements, the back-up element, which input is connected to the right channel the output of the first trigger, the installation input of the second trigger, the eighth input of the control unit and is the first control output of the device; the first input of the control unit is connected to the first output of the decoder, the fifth and sixth outputs of which are connected ootvetstvenno to the fifth and sixth inputs of the control unit, a seventh input coupled to a third input of the register, a second input for setting the first flip-flop, the eighth decoder output and inverted input of the second member II, forward input coupled to a fifth code shaper 5 pulses, the first output of which is connected to the third input of the data buffer, the first group of inputs of which is connected to the third to ninth outputs of the second code converter and the corresponding inputs of the decoder, the seventh output of which is connected to the third, input of the pulse driver, the second output of which is connected to the first the direct input of the first element I, the second direct input of which is connected to the fourth input of the data buffer, the second group of inputs of which is connected to the group of inputs of the unit controlled and from the fourth to the fourth the counter outputs, the first clock input of which is connected to the output of the first element I, the inverse input of which is connected to the first output of the second code converter, the first and second outputs of which are the first and second information inputs of the device, and the tenth output is connected to the first input of the pulse generator, the second input is connected to 0 by the third input of the second code converter, the fourth input of which is connected to the sixth output of the pulse former, the third output of which is connected to the first reset inputs of the first and second triggers and to the first input of the installation in O of the counter, the second input of the installation in O of which is connected to the output of the ninth element And, the first entrance is connected with the inverse output of the first trigger, the first reset input of the third trigger, the ninth input of the control unit and the first input of the fifth element I, the second input of which is connected to the sixteenth output of the pulse generator; the second to the fourth outputs of which are connected to the second group of inputs of the third code converter, the first and the second outputs of which are the first and second information outputs of the device, and the first group of inputs is connected respectively to the outputs of the switch and the first and second outputs of the control unit, you The second element And is connected to the first input of the third code converter, the second input of which is connected to the output of the eighth element And, the first input of which is connected to the output of the delay element, the first input of the third trigger installation and the first input of the fourth element And, the second input is connected to the seventh you - the house of the pulse generator, the fifth output of which is connected to the third input of the third flip-flop installation, the third reset input of the third flip-flop and the third input of the eighth element I, the second input of which is connected to w stym counter output, a fifth output is connected to the second reset input of the third flip-flop, whose output is connected to a second input of the third AND gate having a first input connected to a sixth output of the pulse generator, and an output coupled to a second input of the fourth converter 77 from block 25 35 From blot S 5 TO 50 From block b Thebes.2 codes and / or the second ynpanv .ojiis. the output of the device, the first input of the fourth cola converter is the fourth channel of the information input of the device, and the output (connected to the second input of the switch, the first input of which is connected to the output of the internal code converter, the group of inputs of which is connected to the outputs of the eighth to the fifteenth pulse generator the input of the first code converter is the third information input of the device; the second group of inputs of the switch is the group of information inputs of the device; the fourth output of the importer Ls is connected to the fourth FXO-register house and the first input of the first trigger, the second reset input of which is connected to the output of the seventh element And, the first input of which is connected to the seventh output of the counter, the second clock input of which is connected to the output of the fourth element And, the third clock input of the counter connected to the output of the sixth element I, the first input of which is connected to the inverse output of the second trigger, the direct output of which is connected to the second input of the ninth element I, and the second reset input connected to the output of the fifth el ment And, the second input of the sixth AND gate connected to the second input of the seventh AND gate and the third output of the third transducer codes the second output register is a control output of the apparatus.  To block 1 36 yu 307 MNR t t To blocks $ 5,6, W5,16 Unblocked bt t Omffjioica13 45 G. 7 61 From block 4 # &four 7; From block 72 four 65 69 70 71 From triggers u 51 From block h From trigger 15 so From the block. H M BY 111 Lt To block 3.11 I t Z | 126 L & U- CC9 118 125 by To block 11 121 3 t To block L I 122