JPS6282594A - Bubble file memory device - Google Patents

Abstract

PURPOSE:To attain the automatic restart of actuation of a bubble memory that is once stopped when a normal mode is reset even in case the working of the bubble memory is stopped temporarily owing to an abnormal temperature, by providing a means to save the contents of a register. CONSTITUTION:The temperature of a bubble memory cassette 2 is detected by a temperature detecting means 21. If the detected temperature is set within a prescribed range, the temperature detection control means 101 and 102 make a bubble memory control means 1 perform the normal working of the cassette 2. When the detected temperature gets out of the prescribed range, both means 101 and 102 save the data on each register 111 within the means 1 to a memory means 103 and then stops temporarily the actuation of the cassette 2. When the temperature is set again within the range, the saved data are set again to each register 111. Then the actuation of the cassette 2 is restarted. In such a way, the actuation is automatically restarted from a state set immediately before its temporary stop.

Description

[Detailed description of the invention] [Summary of the invention] The present invention relates to a bubble file memory device.

The bubble memory cassette body has temperature detection means.

Furthermore, when the output of the temperature detection means falls outside of a predetermined range, the controller has a storage means for saving and storing the data of each register in the controller, so that the controller can temporarily stop its operation.

When the temperature changes to within a predetermined range, the device has a function of resetting the data in the storage means to each register, thereby allowing the temporarily interrupted operation to be continued.

[Industrial application field]

The present invention relates to a bubble file memory device capable of temporarily stopping operation when the temperature of a bubble memory cassette is outside a predetermined range, and then automatically restarting the operation from the state immediately before the temporary stop when the temperature of the bubble memory cassette falls within the predetermined range.

[Conventional technology]

A bubble file memory device is a bubble memory device having a removable bubble memory cassette, and is promising as a highly reliable external auxiliary storage device.

Conventional bubble file memory devices have a temperature detector to prevent malfunctions due to temperature changes.
Read or write operations to the bubble memory cassette were immediately stopped.

[Problem that the invention seeks to solve]

In the case of the conventional example described above, even if a read or write operation to a bubble memory cassette is in progress, the operation is immediately stopped. Therefore.

The remaining data that has not been accessed at that point cannot be automatically restored, so the user has to issue the command again after the temperature has returned to the specified range to process the remaining data. This complicates the process and causes user's erroneous operations.

In order to solve the above-mentioned problems, the present invention provides a system for processing when the temperature of the bubble memory cassette goes out of the predetermined range and the operation is temporarily stopped, and then the temperature returns to the predetermined range.

An object of the present invention is to provide a bubble file memory device capable of automatically restarting an operation from a state immediately before being temporarily stopped.

[Means for solving problems]

In order to solve the above problems, the present invention provides a temperature sensor Ia
(21) and a bubble memory cassette (2) having a bubble memory cassette (21).

Bubble memory control means (1) for controlling the operation of the bubble memory cassette, and semiconductor storage means (103).

When the output value of the temperature detection means (21) becomes a value outside the predetermined temperature range, each register (11) in the bubble memory control means (1)
After saving the data of 1) in the storage means (103), the bubble memory control means (1) is made to temporarily stop the operation of the bubble memory cassette (2), and then the temperature detection means (21) is outputted. When the value falls within the predetermined temperature range, the data saved in the storage means (103) is stored in each register (111) in the bubble memory control means (1).
), then the bubble memory control means (1
), the bubble file memory device is characterized in that it has temperature detection control means (101, 102) for restarting the operation of the bubble memory cassette (2).

[For production]

In the above means, first, the temperature detection control means 101.1
02 monitors the output of the temperature detection means 21,
The temperature of the bubble memory cassette 2 is being detected. Thereby, if the temperature is within a predetermined range (for example, 0° C. to 50° C.), the temperature detection control means 101, 102 causes the bubble memory control means 1 to perform normal operation of the bubble memory cassette 2. If the temperature falls outside the predetermined range during operation, the temperature detection control means 101, 102 saves the data in each register 111 in the bubble memory control means 1 to the storage means 103, and then stores the data in the bubble memory. The control means 1 is caused to temporarily stop the operation of the bubble memory cassette 2.

Thereafter, when the temperature returns to within a predetermined range, the temperature detection control means 101, 102 sets the data saved in the storage means 103 into each register 111 in the bubble memory control means 1. After repairing,
The operation of the bubble memory cassette 2 is restarted. Thereby, the bubble memory cassette 2 can automatically resume the operation from the state immediately before being temporarily stopped without inputting a new command.

〔Example〕

Two embodiments of the present invention will be described in detail below.

(Description of overall block diagram of the present invention (FIG. 2)) First, FIG. 2 is an overall block diagram of the present invention. The host system 3 is connected to the bubble file device 1 through an interface 4 and exchanges read data or write data.

Bubble file device 1 is connected to bubble memory cassette 2 via connector 5, controls reading from bubble memory cassette 2, transfers the read data to host system 3, and conversely controls writing from host system 3. Write data to bubble memory cassette 2
or write to.

Next, the bubble memory cassette 2 has a temperature detector 21, and the temperature information detected by the temperature detector 21 is as follows.

The temperature information is transferred to the temperature detection control circuit 10 in the bubble file device 1 via the connector 5, and the temperature detection control circuit 10 controls the operation of the bubble file device 1 based on the value of the temperature information.

(More detailed block diagram configuration of bubble file device (
FIG. 1) Next, FIG. 1 is a detailed block diagram of the bubble file device 1 of FIG. 2. In FIG. 1, an interface 4 connected to a host system 3 (FIG. 2) is interconnected with an interface register 111. The interface register 111 includes a 1-byte data transfer register DIO, a command register CMR, a status register STR, and an error status register E.
S.R.

Page address register (high byte) PARH.

Page address register (rawhide) PARL.

Page count register (high byte) PCRH.

Page count register (low byte) Has PCRL. The interface register 111 is interconnected with a data buffer 112, and the data buffer 112 is
It is interconnected with a CC circuit 113, and the ECC circuit 113 is interconnected with an ECC buffer 114. Also, EC
The C circuit 113 is interconnected with a defective loop processing circuit 115, and the defective loop processing circuit 115 is interconnected with a defective loop buffer 116. Defective loop processing circuit 115
The sense signal from the bubble memory cassette 2 (FIG. 2) is input to the cassette 2, and conversely, the generator signal is output. On the other hand, the controller 101゜interface register 111. Internal register 117, data buffer 112
．． The temperature detection registers 102 are interconnected, and
Controller 101 and RAM memory 103 are interconnected.

RAM memory 103 and interface register 111
are interconnected. The internal register 117 is interconnected with a timing generator and direct peripheral circuit 118, and signals related to the drive magnetic field, swap, replicator, etc. are outputted from the timing generator and direct peripheral circuit 118 to the bubble memory cassette 2 (FIG. 2).

A bubble memory cassette 2 is installed in the temperature detection register 102.
A temperature detection signal TD is input from the temperature detector 21 in (FIG. 2). The temperature detection control circuit 10 in FIG. 2 includes a part of the controller 101 and a temperature detection register 102. R.A.
This is a part of the M memory 103.

(Explanation of operation of bubble file device (FIGS. 1, 3, and 4)) Next, the operation of the bubble file device 1 shown in FIG. 1 will be explained. First, in the interface register 111, the data transfer register DI○ is an input/output bannofer for transferring data between the host system 3 and the data buffer 112. The command register CMR is a register in which commands from the host system 3 are set.

The status register STR is a register that indicates each operating state of the bubble file device 1. The error status register ESR is a register that indicates the error status when an error occurs. The page address register PAR is a register indicating page access of data currently being accessed, and is expressed by two bytes, a high byte H and a low byte L. The page count register PCR is a register indicating the page count number of data to be accessed, and is expressed by two bytes, a high byte H and a low byte L.

Next, the data buffer 112 is transferred to the bubble memory cassette 2.
When reading and writing data to (Figure 2), 1
Buffer one page's worth of data.

When an error occurs in the transfer data (consisting of a page address and data), the ECC circuit 113 obtains corrected data and a corrected page address using a check bit added to the data.

Modify the transfer data stored in the ECCCC buffer 11.

The defective loop processing circuit 115 includes the defective loop buffer 11
Bubble memory cassette 2 stored in 6 (Figure 2)
Based on the bad loop information, transfer data is adjusted so as not to access the bad loop. In the case of writing, the data signal output from the defective loop processing circuit 115 is sent to the bubble memory cassette 2 as a generation signal.
(Fig. 2), the generation of bubbles is controlled. Also,
In the case of reading, a sense signal for reading from the bubble memory cassette 2 is input to the defective loop processing circuit 115 as read data.

The timing generator and direct peripheral circuit 118 generates necessary signals for the bubble memory cassette 2 such as a drive field, a swap, a replicator, etc.

Further, each control from the controller 101 is performed via an internal register 117.

Next, a controller 101 corresponding to the temperature control circuit 10 (FIG. 2). The operations of the temperature detection register 102° and the RAM memory 103 will be explained using FIGS. 3 and 4. First, the temperature detection signal TD is outputted to the temperature detection register 102 from the temperature detector 21 of the bubble memory cassette 2 (FIG. 2). As shown in FIG. 3, the temperature detection signal TD indicates that the temperature of the bubble memory cassette 2 is Q'
A high level H is output within the range of 50°C to 50°C, and a low level L is output in other ranges. The bubble memory cassette 2 can operate when the temperature detection signal TD is at a high level H.

It is now assumed that a high-level H temperature detection signal is set in the temperature detection register 102. Controller 101
After confirming this, host system 3 (Figure 2)
A command is input from , and the Busy signal becomes high level (FIG. 4(a)). and.

The first page to be accessed and the number of pages to be accessed are set in the page address register PAR and page count register PCR in the interface register 111.

For example, page address 0010 (hexadecimal).

Set page count 0003 (hexadecimal).

Thereby, the controller 101 calculates the target page, rotates the driving magnetic field, and exchanges data for the first page with the host system 3 (Fig. 4 (bl, (cl)
t + ” t 2 ). After the first page exchange is completed, the contents of the page address register PAR are set to +LL (
OQII (hexadecimal)), page count register P
The contents of CR are -1 (0002 (hexadecimal)). Subsequently, a temperature detection control signal is output from the controller 101 (FIG. 4(b) t3), and the temperature detection signal TD input to the temperature detection register 102 is checked. If the temperature detection signal is at a high level, the controller 101 exchanges data for the second page (Fig. 4(b), [c)]
t a to t 5). And bubble memory cassette 2
The temperature in (Figure 2) is outside the specified range and the temperature detection signal T
When D becomes low level and it is detected by the temperature detection control signal (Fig. 4 (dl, ff) t 6)
, the controller 101 has the interface register 11
The contents of all registers of 2.1 are saved to the RAM memory 103, and the contents of all registers of 2. and host system 3
(Fig. 2) and enters a wait state (Fig. 4 (flta to 17)).

However, the fact that the temperature is outside the specified range is written in the status register STR so that the host system 3 can know it. Then, the temperature of the bubble memory cassette 2 (Fig. 2) returns to normal again, and the temperature detection signal TD becomes high level, which is detected by the temperature detection control signal as shown in Fig. 4 (di, (fl, t).
7) The controller 101 is a RAM memory 10
The data saved in 3 is transferred to interface register 11.
Reset to each register of 1. At that time, the content of the page count register PCR is 0001 (hexadecimal), and since the page count remains, the controller 1
01 resumes data exchange on the third page (fourth page
Figure (b), (cat e=t 9), thereby,
When all data transfer is completed, the Busy signal falls to low level (Fig. 4+a) t9), and the command ends.

As described above, in this embodiment, the operation is temporarily stopped when the temperature of the bubble memory cassette 2 becomes below O'C or above 50°C, but at that time, the contents of each register are stored in the RAM.
Because it is saved to the memory 103.

Even when the temperature returns to normal and operation resumes, operation can be automatically continued from the state immediately before it was paused, eliminating the need to input new commands and process remaining data.

〔effect〕

According to the present invention, even if the operation of the bubble memory is temporarily stopped due to temperature abnormality, the contents of the register at that time are saved, so that when the temperature returns to normal, the operation of the bubble memory that was temporarily stopped is automatically resumed. It will be possible to restart it. This prevents the user from performing erroneous operations for processing remaining data, thereby making it possible to improve reliability.

[Brief explanation of drawings]

FIG. 1 is a detailed block diagram of the bubble file device 1. FIG. 2 is an overall block diagram of the present invention. FIG. 3 is a characteristic diagram of the temperature detection signal. FIG. 4 is an operation timing chart of the bubble file device. 1... Bubble file device 2... Bubble memory cassette 10... Temperature detection control circuit 21... Temperature detector 101... Controller 102... Temperature detection register 103... RAM memory 111 ...Interface register TD...Temperature detection signal main connection A-block diagram Figure 2

Claims (1)

[Claims] A bubble memory cassette (
2), the output value of the bubble memory control means (1) for controlling the operation of the bubble memory cassette, the semiconductor storage means (103), and the temperature detection means (21) has become a value outside the predetermined temperature range. In this case, each register (11) in the bubble memory control means (1)
After saving the data of 1) in the storage means (103), the bubble memory control means (1) is made to temporarily stop the operation of the bubble memory cassette (2), and then the temperature detection means (21) is outputted. When the value falls within the predetermined temperature range, the data saved in the storage means (103) is stored in each register (111) in the bubble memory control means (1).
), then the bubble memory control means (1
A bubble file memory device characterized in that it has temperature detection control means (101, 102) for restarting the operation of the bubble memory cassette (2).