SU1644226A1 - Bubble memory control device - Google Patents

Abstract

Goal en1 - e is related to computer technology and can be used in application of plug-in x on cylindrical magnetic domains (CMD). The goal of n is h - the expansion of the field of application of the opv account. -.The word jigsaw of a different anosgch memory management device JIT on, will hold the switch 1, Olok 2 markeo search. block 0 forming a word and block 4 forming a page. The eudenmpr of the word formation and search blocks allows you to expand the area of the program controller’s opinion by forming the words of a different d-j ocr: multiple of page 1 width ";::

Description

The invention relates to computer technology and can be used in storage devices on cylindrical magnetic domains (CMD).

The purpose of the invention is the expansion of the region. application due to the formation of words of different lengths.

The drawing shows a structural diagram of a control device for memory on the CMD.

The control device comprises a switch 1, a marker search unit 2, a word generating unit 3 and a page forming unit 4.

Block 2 search marker contains triggers 5 and 6, elements 7-10, element OR, and counter 12. Block 3 word formation contains trigger 13, element 14, elements OR 15-17, group 18 of elements 18, and counter 19. Block 4 the formation of the page contains a trigger 20, an AND element 21, an OR element 22-24, a group of 25 And elements, and a counter 26.

The diagram shows the input 27 of data, input 28 of the validity card, input 29 of the end of the page, input 30 of the initial installation, output 31 of the marker, output 32 of the word readiness, output 33 of the readiness of the device page, group of inputs 34 of the word capacity of the device. The counting inputs of the counters 12, 19 and 26 are indicated by +1.

The device operates as follows.

Before starting the search for the marker and the recording and reading modes, a logical “1” signal is input to the input 30 of the initial installation. Before writing and reading, a marker is searched. At the same time, the data input 27 receives information from the memory module on the CMD, corresponding to data stored only in suitable storage registers. The marker corresponds to 1 ”, which is input 27, and the marker is determined by the code combination specified by the counter 12. This code combination corresponds to the connection of the outputs of the counter 12 to the inputs of the elements 7 and 10. The signals of the validity card from input 28 go to the counting input of the counter 12 through element 9, opened by the resolving potential from the output of trigger 6. The counter changes its state along the trailing edge of the pulse arriving at the counting input. If the code combination that corresponds to all Г at the outputs of counter 12 is connected to the inputs of the elements And 7. 10 and Г of the marker, trigger 5 is set to 1, the marker signal is output. Element And 7 is locked by the inhibitory potential from the output of trigger 5. The signal from the validity card passes through element And 10, resetting the count- to zero. chick 12 and setting trigger 1 to 1 ’’ 6. In this case, the And 9 element is locked by the inhibitory potential from the output of the trigger 6, and the And 8 element is ready to receive validity card signals. This ends the marker search.

The trigger 6 and counter 12 are set to zero every time a signal is received at the input 29 of the end of the page.

In the write and read modes, the capacity of the generated words is set by setting a specific code on the group of inputs 34 of the device. At the same time, logical 1 is present at the corresponding output of the switch 1 and at the input of the corresponding element 14 of groups 18 and 25. The word length is also determined by connecting the corresponding groups of the output of counter 19 to the inputs of the elements of group 18, and the number of words in the page by connecting the corresponding output groups of the counter 26 to the inputs of the elements AND group 25.

The signals of the validity card are received at the counting input of the counter 19 through the AND element 8 of the marker search unit 2. When the counter 19 reaches a certain code combination corresponding to the word length set by the switch 1, the corresponding AND element of group 18 is triggered. The signal from the output of the OR element 16 sets the trigger 13 to 1 ”, the ready signal on the left appears at the output 32. In this case, the counter 19 is reset to zero through the OR element 15 and the counting of the number of words in the page begins with the counter 26 of the page forming block. The trigger 13 of the word-forming unit is reset to 0 by the first validity card signal corresponding to the start of a new word through the element И И 17.

Counter 26 counts the number® of generated page words. Upon reaching a certain code combination corresponding to the word width set by the switch 1, one of the elements AND the trap 25 is triggered. Through the OR element 22, the trigger 20 is set to 1, while the page ready signal appears on the output 33. The counter 26 is reset to zero through the OR element 23. The trigger 20 of the page forming unit 4 is reset to 0 by the first signal received at the counting input of the block 4 through the AND element 21 and the OR element 24,

Thus, the introduction of word and page forming blocks into the device allows expanding the device's field of application due to the formation of words of different bit depths and multiple bits of the page.

Claims (1)

Claim A control device for memory on cylindrical magnetic domains, comprising a switch and a marker search unit, characterized in that, in order to expand the scope by forming words of different bits, a word forming unit and a page forming unit are introduced into the device, the first information input of the search unit the marker is the data input of the device, the second information input is the input of the device’s validity card, and the control input of the marker search unit is connected to the input of the end of the device’s page , the group of switch inputs is a group of bit depth inputs of the device, and the group of its outputs is connected to the groups of control inputs of the word forming unit and page forming unit, the first control output of the marker search unit is the output of the device marker, and the second control output of the marker search unit is connected to the counting the input of the word forming unit, the first control output of which is the device word ready output, and the second control output is connected to the counting input of the forming unit page, the control output of which is the readiness output of the device page, the input of the initial installation of the device is connected to the installation inputs of the marker search unit, the word formation unit and the page formation unit.