CN117271399A - Solid state disk controller and circuit controller - Google Patents

Abstract

A solid state disk controller is capable of judging whether M supply voltages supplied to a NAND flash memory are correct. The solid state disk controller comprises: a voltage detector for receiving the M supply voltages and generating detection results therefrom, wherein M is a positive integer; the voltage inquiry module is used for outputting an inquiry signal to the NAND flash memory so as to acquire a response signal from the NAND flash memory and generate an inquiry result according to the response signal, wherein the inquiry result indicates M specified supply voltages applicable to the NAND flash memory; and the voltage judging module is used for receiving the detection result and the query result, judging whether the M supply voltages are equal to the M specified supply voltages according to the detection result and the query result, and outputting a judging result.

Description

Solid state drive controller and circuit controller

Technical field

The present invention relates to a controller capable of detecting whether the supply voltage of a controlled circuit is correct, and in particular to a controller capable of detecting whether the supply voltage of a controlled circuit is correct.

Background technique

The storage component of a solid-state drive (SSD) is usually NAND flash memory. Generally speaking, the voltage supply of NAND flash memory includes internal circuit supply voltage (VCC) and input/output (IO) interface supply voltage (VCCQ). With the evolution of semiconductor manufacturing processes, the voltage supply of NAND flash memory with different specifications may have to be based on different voltage requirements; if the voltage supply is not the specified voltage of NAND flash memory, the NAND flash memory may not work properly, or the NAND flash memory may not work properly. The service life of flash memory will be affected. For example, the VCC may be 3.3V or 2.5V, and the VCCQ may be 3.3V, 1.8V or 1.2V. It is foreseeable that in the future, the NAND flash memory of the new process will involve more voltage settings. Multiple voltage settings will cause production troubles for SSD module manufacturers, and will also cause SSD controller manufacturers to manually confirm whether the voltage is wrong when helping to solve production problems and find errors. The settings cause the SSD to work improperly.

Contents of the invention

One object of the present invention is to provide a solid-state drive (SSD) controller and a circuit controller to automatically determine whether incorrect voltage settings cause the SSD/controlled circuit to operate abnormally.

Embodiments of the SSD controller of the present invention can determine whether the M supply voltages supplied to the NAND flash memory are correct. The SSD controller in this embodiment includes a voltage detector, a voltage query module and a voltage judgment module. The voltage detector is used to receive the M supply voltages and generate detection results therefrom, where M is a positive integer. The voltage query module is used to output a query signal to the NAND flash memory, to obtain a response signal from the NAND flash memory, and to generate a query result based on the response signal, wherein the query result indicates that the M voltage applicable to the NAND flash memory is a specified supply voltage. The voltage judgment module is used to receive the detection result and the query result, and determine whether the M supply voltages are equal to the M prescribed supply voltages based on the detection result and the query result, thereby outputting the judgment result.

Embodiments of the circuit controller of the present invention are able to determine whether the M supply voltages supplied to the controlled circuit are correct. The circuit controller of this embodiment includes a voltage detector, a voltage query module and a voltage judgment module. The voltage detector is used to receive the M supply voltages and generate detection results therefrom, where M is a positive integer. The voltage query module is used to output a query signal to the controlled circuit to obtain a response signal from the controlled circuit, thereby generating a query result based on the response signal, wherein the query result indicates M specified supplies applicable to the controlled circuit. Voltage. The voltage judgment module is used to receive the detection result and the query result, and determine whether the M supply voltages are equal to the M prescribed supply voltages based on the detection result and the query result, thereby outputting the judgment result.

Regarding the features, operations and effects of the present invention, the preferred embodiments will be described in detail below with reference to the accompanying drawings.

Description of the drawings

Figure 1 shows an embodiment of the controller of the present invention.

Symbol Description:

100: Controller

110: Voltage detector

120: Voltage query module

130: Voltage judgment module

RS _DET : test result

S _REQ : query signal

S _RESP ::Response signal

RS _SPEC : query results

RS _FIN : Judgment result

Detailed ways

This specification invented a controller that can detect whether the supply voltage of the controlled circuit is correct, wherein the controller can be a solid-state drive (SSD) controller or other types of circuit controllers (such as embedded Multimedia Card (Embedded Multimedia Card (eMMC)) controller, Universal Flash Storage (UFS) controller, or Secure Digital (SD) Memory Card (Secure Digital (SD) Memory Card) controller), the controlled circuit can be a reverse NAND flash memory.

Figure 1 shows an embodiment of the controller of the present invention. The controller 100 of FIG. 1 (eg, SSD controller) can determine whether the M supply voltages supplied to the controlled circuit (eg, NAND flash memory) are correct, where M is a positive integer. For example, the M is an integer not less than 2, and the M supply voltages include an internal circuit supply voltage (VCC) and/or an input/output (IO) interface supply voltage (VCCQ). The SSD controller 100 includes a voltage detector 110, a voltage query module 120 and a voltage judgment module 130. The above units are described in the following paragraphs respectively.

See Figure 1. The voltage detector 110 is used to receive the M supply voltages and generate detection results RS _DET therefrom. For example, the voltage detector 110 includes a known/self-developed analog-to-digital converter (not shown in the figure) for generating the detection result RS _DET according to the M supply voltages; however, the above method is not the present invention. Implementation limitations of the invention, other detectors that can be used to detect and measure the M supply voltages (for example: a digital/analog voltage meter that can convert voltage signals into digital signals) can replace the analog-to-digital conversion device. It is worth noting that when M is greater than 1, the voltage detector 110 can receive and process the M supply voltages sequentially, or simultaneously receive and process the M supply voltages through different paths; the detection result RS _DET includes M parts, the M parts respectively correspond to the M supply voltages; for example, when the M supply voltages are the aforementioned VCC and VCCQ, the detection result RS _DET includes the first part RS _DET _1 corresponding to the VCC, and includes The second part RS _DET _2 corresponds to the VCCQ.

See Figure 1. The voltage query module 120 is configured to output a query signal S _REQ to the NAND flash memory to request the NAND flash memory to provide information suitable for the supply voltage of the NAND flash memory. Next, the voltage query module 120 obtains the response signal S _RESP from the NAND flash memory to generate the query result RS _SPEC according to the response signal S _RESP , where the response signal S _RESP is the query signal S _REQ of the NAND flash memory. The output signal, the query result RS _SPEC , indicates the M specified supply voltages applicable to the NAND flash memory. It is worth noting that when M is greater than 1, the query result RS _SPEC includes M parts, and the M parts respectively correspond to the M specified supply voltages; for example, when the M supply voltages are the aforementioned VCC and VCCQ When , the query result RS _SPEC includes the first part RS _{SPEC_1} indicating the first specified supply voltage VCCSPEC, and includes the second part RS _{SPEC_2} indicating the second specified supply voltage VCCQSPEC. The VCCSPEC and VCCQSPEC are respectively associated with the VCC and VCCQ.

See Figure 1. The voltage judgment module 130 is configured to receive the detection result RS _DET and the query result RS _SPEC , and determine whether the M supply voltages are equal to the M prescribed supply voltages according to the detection result RS _DET and the query result RS _SPEC , thereby outputting The judgment result is RS _FIN . For example, when the M supply voltages are different from the M prescribed supply voltages, the voltage judgment module 130 outputs the judgment result RS _FIN as a basis for manual/automatic adjustment of the M prescribed supply voltages. For example, the judgment result RS _FIN may be an alarm signal (such as an indicator light control signal or a speaker control signal). The alarm signal is used to remind the operator that the M supply voltages are incorrect. It is worth noting that when M is greater than 1, the judgment result RS _FIN is a single result, or M parts output sequentially; the single result is used to indicate the M supply voltages as a whole (as a whole) is incorrect; the M parts respectively correspond to the M supply voltages, and are used to indicate whether the M supply voltages are individually (individually) incorrect. For example, when the M supply voltages are the aforementioned VCC and VCCQ, the judgment result RS _FIN includes the first part RS _{FIN_1} indicating whether the VCC is incorrect, and includes the second part RS _{FIN_2} indicating whether the VCCQ is incorrect.

See Figure 1. In an operating example of the controller 100, the controller 100 further includes a known/home-developed processor (not shown in the figure). The processor executes firmware to implement at least one of the voltage query module 120 and the voltage judgment module 130. The content of the firmware can be deduced according to the description of the voltage query module 120 and the voltage judgment module 130 as well as known firmware writing techniques. . The above operation example does not require additional hardware to implement the voltage query module 120 and the voltage judgment module 130, thus saving hardware costs.

See Figure 1. In the operation example of the controller 100 , at least one of the voltage query module 120 and the voltage judgment module 130 is implemented in hardware, and the composition of the hardware can be derived from the aforementioned description of the voltage query module 120 and the voltage judgment module 130 . The above operation example can quickly generate the query result RS _SPEC and/or the judgment result RS _FIN , thereby achieving better overall operation performance.

See Figure 1. In the operation example of the controller 100 , the response signal S _RESP includes the identification (ID) of the NAND flash memory; the voltage query module 120 queries pre-stored data (for example: multiple NAND flash memory) based on the identification. information of the specified supply voltage of the flash memory) to obtain the M specified supply voltages corresponding to the NAND flash memory, thereby generating the query result RS _SPEC . In the operation example of the controller 100, the response signal S _RESP includes at least one parameter of the NAND flash memory (for example, one-time programmable (OTP)) storage component data, including the NAND type flash memory. information of the specified supply voltage of the flash memory); the voltage query module 120 parses the at least one parameter to learn the M specified supply voltages corresponding to the NAND flash memory, thereby generating the query result.

It is worth noting that the controller 100 may include other circuits and functions to control the controlled circuit, but this is beyond the scope of the present application.

Please note that, provided that implementation is possible, those of ordinary skill in the art may selectively implement some or all of the technical features in any of the foregoing embodiments, or selectively implement some or all of the technical features of multiple of the foregoing embodiments. combination, thereby increasing the flexibility in implementing the present invention.

To sum up, the controller of the present invention (for example: SSD controller) can automatically detect whether the supply voltage of the controlled circuit (for example: NAND flash memory) is correct, so as to quickly confirm whether the wrong voltage setting causes the problem. The controlled circuit does not work properly.

Although the preferred and feasible embodiments of the present invention have been disclosed above, these embodiments are not intended to limit the present invention. Those of ordinary skill in the art can implement the technical features of the present invention based on the explicit or implicit contents of the present invention. All such changes are within the scope of patent protection sought by the present invention. In other words, the scope of patent protection of the present invention shall be subject to the scope defined by the claims of this application.

Claims (10)

1. A solid state disk controller, wherein the solid state disk is capable of determining whether M supply voltages supplied to a nand-type flash memory are correct, the solid state disk controller comprising:

a voltage detector for receiving the M supply voltages and generating detection results therefrom, wherein M is a positive integer;

a voltage inquiry module for outputting an inquiry signal to the nand-type flash memory to obtain a response signal from the nand-type flash memory, thereby generating an inquiry result according to the response signal, wherein the inquiry result indicates M prescribed supply voltages applicable to the nand-type flash memory; and

and the voltage judging module is used for receiving the detection result and the query result, judging whether the M supply voltages are equal to the M specified supply voltages according to the detection result and the query result, and outputting a judging result.

2. The solid state disk controller of claim 1, wherein M is an integer no less than 2.

3. The solid state disk controller of claim 1, wherein the voltage detector comprises an analog-to-digital converter for generating the detection result according to the M supply voltages.

4. The solid state disk controller of claim 1, wherein the solid state disk controller comprises a processor that executes firmware to implement at least one of the voltage query module and the voltage determination module.

5. The solid state disk controller of claim 1, wherein at least one of the voltage query module and the voltage determination module is implemented in hardware.

6. The solid state disk controller of claim 1, wherein the M supply voltages comprise an internal circuit supply voltage and an input/output interface supply voltage.

7. The solid state disk controller as claimed in claim 1, wherein the response signal includes an identification of the nand flash memory, and the voltage query module queries pre-stored data according to the identification to obtain the M specified supply voltages corresponding to the nand flash memory, thereby generating the query result.

8. The solid state disk controller as claimed in claim 1, wherein the response signal includes at least one parameter of the nor flash memory, and the voltage query module parses the at least one parameter to obtain the M specified supply voltages corresponding to the nor flash memory, thereby generating the query result.

9. A circuit controller capable of judging whether M supply voltages supplied to a controlled circuit are correct, comprising:

a voltage detector for receiving the M supply voltages and generating detection results therefrom, wherein M is a positive integer;

a voltage inquiry module for outputting an inquiry signal to the controlled circuit to obtain a response signal from the controlled circuit, thereby generating an inquiry result according to the response signal, wherein the inquiry result indicates M prescribed supply voltages applicable to the controlled circuit; and

and the voltage judging module is used for receiving the detection result and the query result, judging whether the M supply voltages are equal to the M specified supply voltages according to the detection result and the query result, and outputting a judging result.

10. The circuit controller of claim 9, wherein M is an integer not less than 2.