SU651335A1 - Interface - Google Patents

Description

(54) DEVICE FOR PAIRING

The device relates to the field of computing and can be used to exchange information between various devices of computer systems.

Devices are known that perform the function of interfacing between several processors, input-output devices, and contain matching units, peripheral processors, a cross switching matrix, and peripheral memory devices 1.

A disadvantage of the known devices is their complexity.

The closest in essence of the technical solution to this device is an interface device, containing two groups of interface matching blocks, the first input to the output of each of which is connected to the corresponding information inputs and outputs of the device, and the setting node connected by the input and output, respectively to control input and output devices 2.

A disadvantage of this device is its low speed.

The aim of the invention is to improve the speed of the device.

The goal is achieved by introducing a matrix of switching elements into the device, with the second inputs and outputs i-ro (iI, M) of the interface block of the first group and the second input and output of j-ro (j I, N) of the interface matching block of the second group connected respectively to the first outputs and inputs and the second outputs and inputs of the switching element of the i-th row and j-ro matrix column, the control input and output of which are connected respectively to the j-th control output and input from the i-th group. In addition, the switching element contains the address register, the comparison circuit,

request trigger, enable trigger, two AND elements and a control signal driver, the address register output connected to the first input of the comparison circuit, the output of which is connected to the first request trigger input, the request trigger output output connected to the control output of the switching element and the first control driver input signals, the second input

which is connected to the resolution trigger resolution, the first output of the transducer is connected to the control inputs of the And elements, the output of the first element And is connected to the first output of the com-: mutating element, the control input of which is connected to the first input of the trigger: the output of the second element AND is connected to the third input of the driver: control signals and the third input of the switching element, the second input of which is connected to the second input of the circuit, comparing,: the first element and the fourth input: forms control signaling device. input of the second element And pdc -. chen to the first input, its element, the second. trigger request trigger triggers: the wires are connected to the second output of the control signal generator.

1 and 2; block diagrams are shown..ust-. and the circuit of the switching element;

The device contains an interface matching unit, switching element 2, setting node 3, setting node priority block 4. Block-5 Control Settings node, address register 6, comparison circuit 7, request trigger 8, control signals driver 9, elements Y and 11 and trigger resolution 12.:., ... /

The device works as follows

Information is exchanged between, for example, numeral machines (VM). External subscribers (BA) are carried out through an interface device through an interface that provides transmission of information and control signals from VM to VA and from VA to VM via separate lines.

The VM interface passes through the columns, and the VA interface passes through the rows of matrixes of switching elements. At the intersection points of the rows and columns, switching elements are installed that carry the communication of information flows between the VM and the VA. At the same time, in order to have only one switching unit working at a time in the interface line, the setup node opens the corresponding switching elements in the line so that any VA at a given time can only be connected to one VM. This point in time can be the time required to transfer only a byte of information, or a certain array of information, i.e., information can be exchanged between VM and VA both in multiplex and exclusive mode. In the same way, all available VAs can be connected to one VM, for this, a switching unit belonging to the selected column is opened in each row.

After the device is turned on, all its elements are reset. Next, the priorities are set, i.e. in the settings node 3, the priority is set in all the switching elements 2.

Switching position in the analogous position: elements are blocked by signals from node 3. The process of information exchange between VM and VA through interface matching blocks. I begins with the issuance of the VM address of the switch. element 2. This address is perceived by the corresponding switching:: elements 2, where the interface control signals fall into the driver 9, and the address code is compared with the contents of the address register 6 in the comparison diagram 7. As a result, the comparison is generated by:. A request for connection to the interface is selected. This signal sets the trigger 8 to one state, information from this trigger goes to shaper 9 and to block 4. In the case of non-matching addresses, trigger 8 goes to one state and is set and the request signal does not go to block .4. Block 4, if several requests are received from the switching elements 2 of this line, grants permission to use the interface. The EA is prioritized and sets the trigger 12 of the resolution to a single state. Triggers 8 and 12 remain in a single position all the time of operation of this switching element 2. The signal from trigger 12 enters the driver 9, which generates and transmits a service word with notification of the provision of the interface AA or failure in the VM. After that, the shaper 9 blocks the interface information output circuits from the side of the switching element 2 and opens the circuits AND 10 and 11 for the exchange of information between the VM and the VA. When all or several BA are connected to one VM, the latter sends to the interface, sequentially, address by address, connected VA, and a connection is sequentially made.

After the exchange is completed, the VM transmits the address of the switching element 2 and the control code, thus informing about the end of the exchange.

Any subscriber can be used in the device, since the subscriber is connected to the VM interface through an interface that transforms the characteristics of each subscriber to the standard form received in the selected interface.

Claims (2)

1. A device for interfacing, containing two groups of interface matching units, the first input and output of each of which are connected to the corresponding informational inputs and outputs of the device, and a setting node, each year connected by the input and output, respectively, to the control input and output devices , characterized in that, in order to increase the speed of the device, a matrix of switching elements is introduced into it, with the second input and output i-ro - (i I, M) of the interface matching unit of the first group and the 1st input and output j-ro ( j I, N) block matching the interfaces of the second group are connected respectively to the first outputs and inputs and the second outputs and inputs of the switching element of the i-th row and j-ro column of the matrix, the control input and output of which are connected respectively to the j-th control output and input from the i-th control input and output node groups. 2. A device according to claim 1, characterized in that the switching element comprises an address register, a comparison circuit, a request trigger, a spread trigger, two AND elements and a driver of control signals, the output of the address register being connected to the first input of the comparison circuit, the output of which connected to the first input of the request trigger, the output of the request trigger is connected to the control output of the switching element 65 6 and the first input of the control signal generator, the second input of which is connected to the output of the trigger; The control signal gate is connected to the control inputs of the elements And, the output of the first element I is connected to the first output of the switching element, the control input of which is connected to the first input of the enable trigger, the output of the second element And is connected to the third input of the control signal conditioner and the second output a switching element, the second input of which is connected to the second input of the comparison circuit, the input of the first element AND and the fourth input of the driver of control signals, the input of the second element AND is connected to the first At the input of the switching element, the second inputs of the request trigger and the enable trigger are connected to the second output of the driver of control signals. Sources of information taken into account in the examination 1. Multiprocessor systems and parallel control systems, M., “Mir, 1976. 2. USSR author's certificate number 314207, cl. G About F 15/16 1971.