SU970472A1 - Regeneration control device - Google Patents

Description

(54) DEVICE FOR REGENERATION MANAGEMENT

The invention relates to automation and computing, in particular, to devices for controlling the regeneration of information in dynamic type memory devices.

A device for controlling memory blocks is known, comprising a regeneration pulse generator, a regeneration address counter, a memory block trigger, a synchronization block, an address output block, a regeneration trigger, a one-shot, AND and OR 1 elements.

The disadvantage of this device is the unproductive expenditure of time for regeneration, since all cells of the memory are regenerated, including those that are not used at the given time (for solving this problem).

The closest technical solution to the invention is a device; a regeneration control device containing an address block, a decoder, memory elements, an encoder, a control block, AND, OR, NOT elements and allowing the search to be obtained from the cell regeneration cycle that was addressed 2,

A disadvantage of the known device is that it cannot carry out an analysis of the need for regeneration. This leads to unproductive time spent on the regeneration of unused cells.

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

10 by analyzing the need for regeneration.

The goal is achieved by the fact that a regeneration control device containing a pulse generator 15, an output connected to one of the inputs of the AND element and an input of the address counter, an output of the AND element and the outputs of the address counter are respectively control and

20 address outputs of the device, additionally entered a switch, the register, the inputs of which are the information inputs of the device, the outputs of the register are connected to information

The 25 inputs of the switch, the control inputs of which are connected to the outputs of the address counter, the output of the switch is connected to another input of element I.

The functional scheme of the proposed

30 device shown in the drawing.

The device contains a generator of 1 pulses, a counter of 2 addresses, an element of AND 3, a register 4 and a switch 5.

The number of bits of register 4, designed to store the values of regeneration zones, can be any number from 2 to 2, where rt is the number of bits of the counter of 2 addresses.

The device for controlling the regeneration is working as follows.

Before solving any problem using a storage device, an entry is made in the register of 4 regeneration zones. Each bit of register 4 corresponds to a specific memory area of the memory device. The presence of a logical unit in the register bit 4 is a requirement for the regeneration of the corresponding area of the memory device. The regeneration impulse generator 1 generates impulses that go to the input of the counter 2 addresses and to the first input of the element 3. If the counter 2 of addresses contains an address corresponding to the zone of the storage device that needs to be regenerated, then this address will be a logical one at the output of the switch 5 from the corresponding register bit 4, which goes to the second input of the FROM element, through which the pulse from the pulse generator passes to the device Regeneration output. Counter 2 addresses will change its state at the falling edge of the pulse.

If in the 2-address counter there is an address corresponding to the storage area that does not need to be regenerated (in the corresponding register 4 registers the logical zero), then the output of the switch 5 will be a logical zero, and the pulse of the generator 1 pulses to the output Regeneration of the device will not work will only change the state of the 2 address counter. The analysis of the need for regeneration favorably distinguishes the invention from the known technical solutions, since the non-productive time spent on the regeneration of unused memory cells is reduced. Claims

A device for controlling regeneration, comprising a pulse generator, the output of which is connected to one of the inputs of the AND element and to the input of the address counter, the output of the AND element and the outputs of the address counter are respectively the control and address outputs of the device, characterized in that capabilities of the device due to the analysis of the need for regeneration, it contains a switch and a register whose inputs are the information inputs of the device, the outputs of the register are connected to the information inputs Am switch control inputs of which are connected to the outputs of the address counter output switch connected to the other input member I.

Sources of information taken into account in the expert world

1. USSR author's certificate No. 706881, cl. G 11 C 29/00, 1979.

2, USSR Author's Certificate 514346, cl. G 11 C 21/00, 1976 (prototype).

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Claims (1)

Claim A device for controlling regeneration, comprising a pulse generator, the output of which is connected to one of the inputs of the element And and to the input of the address counter, the output of the element And and the outputs of the address counter are respectively the control and address outputs of the device, characterized in that, in order to expand the functionality of the device due to the analysis of the need for regeneration, it contains a switch and a register, the inputs of which are information inputs of the device, the outputs of the register are connected to information inputs ommutatora controlling ^ inputs of which are connected to the outputs of the address counter * switch output is connected to the other input member I.