JPS59104781A - Magnetic bubble memory device - Google Patents

Abstract

PURPOSE:To attain the control of memories of different memory capacities by giving the constants of plural memories in the form of a constant table into an ROM of a bubble memory control circuit and designating a desired content with a type recognition input. CONSTITUTION:An ROM16 of a control circuit 3 stores previously the cycle number of rotary magnetic field up to each function in response to plural memories, i.e., the control subjects of different memory capacities and on the basis of the cycle number of rotary magnetic fields from a certain function to the next function. When the types of memories of different capacities are defined as 20a, 20b-20n, the contents a-h corresponding to these types are stored in the ROM16 in the form of constant tables 21a, 21b-21n, respectively. Then a desired constant table is selected in response to the control subject memory by the type recognition input corresponding to the desired type. Thus a memory to be controlled is controlled.

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a magnetic bubble memory device, and particularly to a magnetic bubble memory device that allows a single device to control a plurality of magnetic bubble memory devices with different storage capacities. .

[Prior art]

Conventionally, magnetic bubble mesori element 9 rotation magnetic field generation coil,
A magnetic bubble memory control circuit that controls information writing and reading operations in a magnetic bubble memory device equipped with a permanent magnet for generating a bias magnetic field, etc. has a one-to-one correspondence with each type of magnetic bubble memory device. Therefore, it is impossible to control a plurality of magnetic bubble memory devices with different storage capacities.

[Purpose of the invention]

Therefore, the present invention has been made in view of the above-mentioned conventional drawbacks, and an object thereof is to provide a magnetic bubble memory device that enables control of a plurality of magnetic bubble memory devices having different storage capacities. There is a particular thing.

[Summary of the invention]

In order to achieve such an object, the present invention provides constants for a plurality of magnetic bubble memory devices with different storage capacities as a constant table in the read-only memory of a magnetic bubble memory control circuit, and determines which constants in this table are selected. By specifying whether to use the magnetic bubble memory device through type recognition input, control corresponding to the target magnetic bubble memory device is performed.

[Embodiments of the invention]

Next, embodiments of the present invention will be described in detail using the drawings.

FIG. 1 is a block diagram showing an example of a magnetic bubble memory device according to the present invention. In the same figure, the host computer! The magnetic bubble memory device 2 uses a magnetic bubble memory device 2 as one of the memories, and the magnetic bubble memory device 2 includes a magnetic bubble memory device control circuit 3. a magnetic puzzle memory device 4. a magnetic bubble memory device 40 rotating magnetic field. Coil driver 5 that supplies current; Function driver 6 that supplies pulse current to each gate;
From a sense amplifier 7 that amplifies and discriminates the output signal of the magnetic bubble memory device 4 and a seven-function timing generator 8 that generates the necessary timing pulses within one period of the rotating magnetic field specified by the magnetic bubble memory control circuit 3. It is configured. The magnetic bubble memory device control circuit 3, as shown in the block diagram in FIG. Host Inter 7 Ace register that sends and receives data! 0, a magnetic bubble memory device control output circuit 11 that outputs necessary control signals to the function timing generator 8 shown in FIG. an input circuit 13 for inputting various conditions including the above into the magnetic bubble memory device control circuit 3 shown in FIG. A random access memory 15 temporarily holds intermediate results of calculations in the magnetic bubble memory control device 2 shown in FIG. It is composed of a read-only memory 16 and a read-only memory 16. As shown in FIG. 3, this read-only memory 16 includes functions corresponding to a magnetic bubble memory device to be controlled and a plurality of magnetic bubble memory devices with different sizes of memory storage capacity. The number of cycles of the rotating magnetic field from 11 to the next function is stored in advance as 11 for a certain function. That is, in FIG. 3(a), 21 is a minor loop for storing information, 22 is a write mesh line, 23 is a read measure line for transferring read information, and 24 is a magnetic bubble generating can for transferring information onto the write mesh line 22. ,
25 is a swap gate that exchanges the information on the write mesh 2-in 22 with the information in the MyPloop 21, 26 is a replicate gate that copies the information on the minor loop 21 onto the read mesh line 23, and 27 is a detector that detects magnetic bubbles. .

In such a configuration, the following constants are required to control the magnetic bubble memory device. That is, as shown in FIG. 2(b), the number of pits a in the replicate gate 23 is
The number of bits up to 7, the number of pits of the detector 27 C,
The number of bits from the detector 27 to the replicate gate 23 d, the number of bits from the magnetic bubble generator 24 e, the number of bits from the magnetic bubble generator 24 to the swap gate 25 f
.

Number of bits g of swap gate 25, swap gate 25
The number of bits from the magnetic bubble generator 24 to the magnetic bubble generator 24 is stored in advance. In this case, the number of these bits a −%−h
Since the number of cycles of the rotating magnetic field varies depending on the storage capacity of the magnetic bubble memory device to be controlled, the number of cycles of the rotating magnetic field is converted into the number of rotating magnetic fields and stored. However, as shown in FIG. 3, the number of cycles of the rotating magnetic field between each foundation differs depending on the storage capacity of the magnetic bubble memory device.

Therefore, as shown in Fig. 4, types of magnetic bubble memory devices with different storage capacities are 2Qa, 20b, etc.
...When it is 2On, this type 20a, 20
b...The above constant a corresponding to 2011
% h in constant tables 21a, 21b...
... 2 In is stored in the read-only memory mentioned above, and is used in accordance with the type recognition force 12 (see Figure 2) corresponding to the required type, and the magnetic bubble memory device to be controlled. select a constant table to control the controlled magnetic bubble memory device.

With such a configuration, only the type 1'a1 magnetic bubble memory control circuit is required for a plurality of magnetic bubble memory devices having different capacities.

Furthermore, a magnetic bubble memory control circuit is obtained which is most suitable for configuring a magnetic puzzle memory device in which the magnetic bubble memory device is replaceable as a cassette.

〔Effect of the invention〕

As explained above, according to the present invention, a plurality of magnetic puzzle memory devices with different storage capacities can be controlled, so one type of magnetic bubble memory control device can be used. Since only a bubble memory control circuit is required, the secondary effects obtained through mass production are also significant.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an example of the magnetic bubble memory device according to the present invention, FIG. 2 is a block diagram showing an example of the magnetic bubble memory device control circuit of FIG. 1, and FIGS. FIG. 4 is a diagram for explaining the configuration of the magnetic bubble memory device control circuit related to the magnetic bubble memory device according to the present invention, and is a diagram showing a constant table in the read-only memory. DESCRIPTION OF SYMBOLS 1... Host computer, 2... Magnetic bubble memory device, 3... Magnetic bubble memory device control circuit, 4... Magnetic bubble memory device, 5...
・Coil driver, 6... Function driver, 7... Sense amplifier, 8... Function timing generator, 9... Arithmetic control circuit, I
O...Host interface generator, lI
-... Output circuit for magnetic bubble memory control, 12...
・Type recognition input terminal, ■3...Input circuit, 14.
...Counter, 15...Random access memory, 20a, 20b...Song...2 on-a 'A
Huffle Memory Tech S 21a, 21b...
・・・・・・2In・・・Constant table. 493 Almost 1 figure (D-)? 7

Claims (1)

[Claims] A magnetic bubble memory device control circuit that controls write and read operations of a magnetic bubble memory device that includes at least a magnetic puzzle memory element, a permanent magnet that applies a perpendicular magnetic field to the element, and a drive coil that applies a horizontal rotating magnetic field to the element. A magnetic bubble memory device comprising: a read-only memory in which the magnetic bubble memory device control circuit stores a constant table corresponding to a plurality of magnetic bubble memory devices with different storage capacities; Mf is the capacity type of the memory device.
1. A magnetic bubble mesori device comprising: means for inputting a signal for controlling a magnetic bubble memory device;