JPS5897194A - Data processing method for bubble memory - Google Patents

Abstract

PURPOSE:To quicken the data transfer and to read the content of error, by providing an error memory in a bubble memory device and performing data transfer the same as normal operation at error. CONSTITUTION:Data are transferred among a CPU23, an indirect peripheral circuit 21, a direct peripheral circit 20, and a bubble memory device 19, and if an error takes place, whether or not the data is transferred at the circuit 21, is determined and the content of error is transferred to an error memory 22. Thus, even at the generation of error, the data transfer operation is not interrupted and the data transfer can be done quickly. The content of error can be detected by reading the content of the memory 22.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a bubble memory data processing method using a bubble memory device.

The first data processing method for conventional Tsubapuru memory devices.
A method of processing the bubble memory device shown in the figure is known.

When a command is given to a bubble memory device, the internal processing is as shown in Figure 1. Note that in the following description, the term "1 bubble memory device" will be described as a storage device using a bubble memory device. Therefore, "bubble memory device" is "
"bubble memory device" refers to a storage element contained within a "bubble memory device".

Now, Figure 1 shows an outline of data processing in a conventional controller. First, when a command is given to a bubble memory device, the controller in the bubble memory device analyzes the command and transfers data to and from the bubble memory device. do.

In this case, consider fc, for example, when continuous output occurs.

Extracting data from within a bubble memory device (S?7
7'l) Process the data with the operation in step 2, check whether the result is correct with step f3, and if it is correct, transfer it to the outside with sterag4'L,
If it is not correct, a command to determine whether to retry (read again) is to be performed in step 5 is interpreted, and if read 2 is to be performed, the process returns to step fl again.

With conventional bubble memory devices, if data is destroyed, if the data is not transferred or the index is not found after redo, the data cannot be retrieved and all data in the bubble memory device is wasted. It had become.

Furthermore, once an error occurs, the system temporarily stops, data transfer is delayed, and the system does not operate normally. This was especially noticeable when reading large amounts of data continuously.

This invention was made to eliminate the above-mentioned drawbacks of the conventional technology, and by providing an error memory in the bubble memory device, data transfer can be performed continuously, and when an error occurs, Technique 2 - The purpose is to provide a bubble memory data processing method that can inform the contents and quickly transfer data.

The following is a flowchart for explaining a processing method according to an embodiment of the bubble memory data processing method of the present invention. In this figure 2, steps 1 to 11-1611 of
The configuration is based on 6. In addition, step 17 is added to the Stella FLL-16, so that it is possible to set whether or not data transfer is to be performed using software commands and hardware switches, and data is not transferred to the outside. In this case, the address where the error occurred and the error contents are stored in the error memory by the Stella 7'18, so that the error contents and data contents that occur during data transfer are made the same as during normal operation.

We are trying to prevent temporary stops. Moreover, the error contents are stored in a non-volatile bubble memory device, and when the power is turned on, an error pin ff:1IIt is created as an initialization function, thereby making it possible to correct T-event.

The outline has been described above, but we will show how to actually achieve it. The third example is a block diagram of a bubble memory device applied to the bubble memory data processing method of the present invention. this#! In 3G, 19 is a non-volatile pull memory device, and normal data is stored here. Direct peripheral circuit #1I20 to create the waveform necessary to operate this, number of address data, number of pages, etc. t-1-is, bubble memory device 19
A bubble memory device is constituted by an indirect peripheral circuit 21 that controls the input and output of data at predetermined positions within the bubble memory device.

Normal data transfer is performed between the host CPU 23, the above-mentioned indirect peripheral circuit 21, direct peripheral circuit 20. All that was required was data transfer to and from the bubble memory device 19.

However, as in this invention, the step 7' in FIG.
17,181! - To realize this, an error memory 22 such as 1#L<RAM is provided.

Information on whether or not to transfer data at the same time is provided in the peripheral 7 enclosure 11. This can be set using software commands or simple hardware switches. If there is an error 7 lag for data transfer, the address of the error and St stored in the error are stored in the memory 22 of the error memory 22. When all data transfer is complete, send the near address and error details to the host CP.
This is shown in U23. Moreover, when the transfer is completed and the data is in a waiting state, it is directly stored in the bubble memory device 19 via the peripheral circuit 20.

This storage area is provided as an area other than the data area.

Bubble memory device 19 is nonvolatile and is retained even when the power is turned off. When the power is turned on, the error contents stored in the bubble memory device 19 in advance are read out at the initial time, a map is created in the memory 22, and it is referred to and corrected during data transfer.

In the above embodiment, RAMt is used as the error memory 22.
- Although used, a bubble memory device may also be used separately. Alternatively, the bubble memory device may be stored in another device.

As described above, according to the bubble memory data processing method of the present invention, an error memory is provided in the bubble memory device,
Even when an error occurs, the data is transferred to normal operation, so data transfer is fast.

Furthermore, since the error contents can be read from the outside, transfer is performed without interruption, and conventional functions are not impaired even if the error occurs temporarily.

[Brief explanation of drawings]

Fig. 1 is a flowchart showing a conventional bubble memory data processing method, and Fig. m2 is a flowchart showing an operation flow of an embodiment of the bubble memory data processing method of the present invention.
l! Figure 3 shows a bubble memory device applied to the bubble memory data processing method of the present invention! It's Ron 2 figure. 19...Bubble memory device, 20...Direct peripheral, 22...Error memory, 23...Hos) CP
U0 agent Shin Kuzuno - Figure 1 Figure 2

Claims (1)

[Claims] When a command is given to a bubble memory device using a puzzle memory device, an indirect peripheral circuit that performs data input/output control to the bubble memory device by providing information on whether or not to transfer data to and from the bubble memory device. is installed in the bubble memory device to prevent data transfer from occurring due to an error in the input/output data to the bubble memory device.
- data (7, 17 address and error V3 valley t is stored in the error memory, and when the transfer of data that does not cause an error is completed, the address and error contents stored in the error memory are stored in the upper address and the error contents are stored in the upper address and the error contents are stored in the upper address and error memory device). C
A bubble memory data processing method characterized by being shown in PU.