SU1310834A1 - Device for information output from electronic computer to communication line - Google Patents

Abstract

The invention relates to the field of automation and computer technology, in particular to devices for serial output of information, and is intended to convert information received from a computer with a normal code into a serial code transmitted to the communication line. The purpose of the invention is to increase the reliability of the device, which is achieved by comparing the original parallel code stored in the control register with the code generated in the shift register, by ring shifting after serial transmission to the link of its contents. 1 il. i 00 with j;

Description

The invention relates to automation and computing, in particular to devices for sequential information output, and is intended to convert a computer word obtained from a computer with a parallel code into a serial code transmitted to a communication line.

The purpose of the invention is to increase the reliability of work.

The drawing shows a diagram of a device for outputting information from a computer to a communication line.

The device contains from first to third triggers 1, 2 and 3, a pulse generator, from first to fourth elements AND 5-8, shift register 9, register 10 control, a group of 11 elements EXCLUSIVE OR, first to fourth elements OR 12-15, counter 16, decoder 17, element NOT 18, device input 19 for connecting the output of the computer output start, device input 20 for connecting the output; end of the computer output, device input 21 for connecting the output of the computer parallel task, device 22 for connecting to the information output Computer input 23 devices d L connected to the output of the resolution of parallel recording of control information of the computer, device input 24 for connection to the output of the control output of the computer, output 25 of the device for connecting to the ECG readiness input, receiving information from the computer, device error signal output 26, device output 27 for connecting to the line connection.

The device works as follows.

At the first stage, the operation of the part of the device intended for checking the correctness of converting the parallel code to the serial one is checked. To do this, in the shift register 9, through the information input 22, a code is written that is gated with a signal. Resolution of a parallel Q trigger 1 - at the OR 14 element, recorded at input 21. At control register 10, another code is written from input 22 at a signal Resolution parallel recording of control information from input 23. The pulse from input 23 sets trigger state 3 to one state, and O second to input element OR 12 comes in from inverted output output of trigger 3. After

Godd counter 15 from a single signal at the reset input. On the leading edge of the next pulse from the output of the generator 4, the trigger 2 is set to one state, allowing the passage of pulses from the generator 4 through the AND 5- element. The pulses from generator 4 shift the contents of register 9. The signals from the last moment of the pulse from input 23 to. the first input of the element OR 12 is set to O and 1 from its inverse output to the second input of the element OR 15. Signal 1 from the output of the element OR 15 allows the signal from the output of the element OR 13 through AND 8 to the output 26 Discrepancy of the device codes. If a

the codes entered in the shift register 9 and the control register 10 are equal, the signal O is set at the output 26 of the device. If at least one of the bits of the output codes is unequal

the corresponding element EXCLUSIVE OR group 11, a signal 1 is formed, which through the element OR 13 and the element AND 8 enters the input 26 of the device. Brute force codes in registers 9 and 10, you can completely check the entire controlling part of the device. After checking the next pair of bits of registers 9 and 10, before replacing the codes, trigger 3 is reset, giving a signal to input 24 End of the control output, which prohibits through the OR 12 and 15 elements. the signal from the output of the element OR 13 through the element AND 8 to the output 26 of the device. Upon completion of the test, trigger 3 is reset by a signal from input 24 End of the control output of the device.

At the second stage, the parallel code is converted into a serial one and transmitted to the communication line with simultaneous comparison with the control code. To registers

9 and 10 by a strobe signal. Parallel recording resolution from the device input 21 is recorded from the information inputs 22 parallel code. The signal from input 19. The start of the output sets trigger 1 to a single state. A single signal from the direct output of trigger 1 arrives at the D input of a triggered trigger, and a zero signal from the inverse output

Q flip-flop 1 - on the element OR 14,

Godd counter 15 from a single signal at the reset input. On the leading edge of the next pulse from the output of the generator 4, the trigger 2 is set to one state, allowing the passage of pulses from the generator 4 through the AND 5- element. Pulses from generator 4 shift the contents of register 9. Signals from the last output of register 9 are gated in And. 7 pulses from generator 4 and arrive at the output on link 24 of the device. At the same time, these signals are sent to the serial information input of register 9. Thus, in register 9, a cyclic ring shift of the code is performed. The clock pulses from generator 4 are counted in counter 16. When counter 16 reaches a number equal to the digit of register 9, the signal from the output of the decoder 17 is gated by a pulse from the output of the element HE 18, which corresponds to the first pause in the pulse sequence from generator 4 after shift and transfer to the line the entire contents of register 9, goes through the element AND 6 to the first input of the element OR 15. The signal from the output of the element OR 15 gates the passing of the control signal from the output of the element OR 13 through the element AND 8 to the output error ki device. The signal at output 26 is the result of comparing the source code to register 10 and cyclically shifted and transmitted to the line code in register 9. The signal from the output of element And 6 also goes to output 25 Ready to receive from a computer device Since the speed of the computer is 20-40

Once information transfer speeds over telemechanical communication channels, the computer will certainly have time to process the sigal from output 25 and output for non-. Reduce the next word during the pause of the pulse sequence of the generator 4. After processing this signal, through the information inputs 22 into registers 9 and 10 and the signal from the input 21 records the code of the next word. At the same time, the signal from input 22 through the element OR 14 clears counter 6. Subsequently, the code conversion and control cycles are repeated until the transfer of information to the line is completed.

After the transfer of the last word to the communication line is completed, input signal 20 to the end of the output of the device receives a signal that resets triggers 1 and 2 and clears counter 1.6 through the OR 14 element.

Claims (1)

Invention Formula Device for outputting information from an electronic computer (COMPUTER) to the communication line containing the first trigger, the first, second and third elements AND, the shift register, the counter, the first element OR, the element NOT, the output of the device for connecting the readiness input of the computer is connected to the output of the first element AND and to the first input of the first element OR, the input of the element is NOT connected to the output of the second element AND, to the counting input of the counter, to the first input of the third And element and the synchronous input of the shift register, serial input and output are connected to the second input the third element And the device input for connecting the input of the beginning of the computer output is connected to the S input of the first trigger, the output of the element is NOT connected to the first input of the first element AND, the output of the third element AND is connected to the output of the device for connection to the communication line, In order to increase the reliability of operation, the device contains. second and third triggers generator pulses, the fourth element AND, the register of controls, a group of elements EXCLUSIVE PC, the second, third and fourth elements OR, the decoder, the input device connecting the output end of the computer output is connected to the R inputs of the first and second triggers and to the first input of the second SHS element, the second input of which is connected to the inverse output of the first trigger, the direct output of which is connected to the D input of the second trigger, direct output which is connected to the first input of the second element And, the second input of which connected to the C-input of the second trigger and the output of the pulse generator; the input of the device for connecting the output of the parallel recording of the computer is connected to the inputs of the permission recording the shift register, control register and the third input of the second element OR, the output of which is connected to the reset input of the counter, the outputs of the counter are connected to the inputs of the decoder, the output of which is connected to the second input of the first element I, the input of the device for connecting to the information output of the computer is connected to information register entries shift and control register, the syncro input of the control register is connected to the input of the device to connect the output of the resolution of the parallel recording of the control information of the computer, 51 the first input of the third OR element and the S input of the third counter, the direct output of which is connected to the second input of the third OR element, the inverse output of which is connected to the second input of the first OR element, the output of which is connected to the first input of the fourth AND element, the output of which is the output signal of the error device, the first inputs of the elements EXCLUSIVE OR groups are connected to the group of outputs of the register 108346 shift, the second inputs of the EXCLUSIVE OR elements are connected to the group of control register outputs, the outputs of the EXCLUSIVE OR groups of 5 are connected to the inputs of the fourth OR element, the output of which is connected to the second input of the fourth I element, fO water control information of the computer is connected to the R-input of the third trigger. Editor M. Dylyn Compiled by Molchanov Tehred L. Oleinik Proofreader A.Obruchar 1893/46 Circulation 673 Subscription VNISh State Committee of the USSR for inventions and discoveries - 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, st. Project, 4