Fault condition write-back
By introducing non-volatile memory and write-back registers into electronic devices, and activating alternative power paths using fault condition detectors during power failures, secure information storage during power failures is achieved, solving the problems of performance interference and high cost when reading and writing memory under power failures.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- INFINEON TECHNOLOGIES AG
- Filing Date
- 2025-10-31
- Publication Date
- 2026-05-08
AI Technical Summary
Existing electronic devices have difficulty performing read and write operations on memory simultaneously during power failures, resulting in performance interference and high costs.
Information is stored in parallel using non-volatile memory and write-back registers. In the event of a power failure, a fault condition detector activates an alternative power path and initiates the transfer of information from the write-back register to the non-volatile memory.
In the event of a power failure, it ensures the secure storage of information, avoids expensive simultaneous read/write memory architectures, reduces costs, and maintains the basic functionality of the system.
Smart Images
Figure CN121996450A_ABST
Abstract
Description
Technical Field
[0001] This disclosure relates to electronic devices, systems, and methods. These electronic devices, systems, and methods can be used particularly in automotive applications, such as for controlling a vehicle or at least a portion thereof. However, other applications are certainly feasible in principle as well. Background Technology
[0002] In practice, electronic devices may suffer from fault conditions during operation, such as power failures. Electronic devices typically need to store diagnostic information about such events, for later analysis. Immediate action is often required, for example, due to power loss, or generally to avoid data loss. However, applications controlled by electronic devices often need to continue operating at least in special operating modes. For example, applications controlled by electronic devices may enter a safe state, which could be a shutdown state, such as through soft shutdown. To store information immediately while the application continues operating, a simultaneous read-write memory architecture is typically required. Normally, read operations are impossible when memory is busy with write operations. However, if the system cannot retrieve and execute subsequent instructions, this can significantly degrade overall performance. Simultaneous read-write memory allows for simultaneous reads and writes. Such simultaneous read-write memory can be implemented using multiple sets of devices, such as multiple sets of NOR flash memory devices. Write operations can then be performed in the first set, while read operations can be performed in the second set. However, such devices are typically quite expensive. Therefore, there is a particular need to reduce costs while still ensuring proper fault condition handling. Summary of the Invention
[0003] In a first aspect, an electronic device is presented. The electronic device includes non-volatile memory. The non-volatile memory is configured to store information independent of power supply. The electronic device also includes a plurality of write-back registers. The write-back registers are configured to store information in parallel with the operation of the electronic device. The electronic device also includes a fault condition detector. The fault condition detector is configured to detect a fault condition of the main power supply. The fault condition detector is also configured to activate an alternative power path to an alternative power supply in the event of a fault condition. The fault condition detector is further configured to initiate a transfer of information from the write-back registers to the non-volatile memory in the event of a fault condition.
[0004] In another aspect, a system is presented. The system includes an alternative power supply. The system also includes electronic equipment. The electronic equipment includes non-volatile memory. The non-volatile memory is configured to store information independent of the power supply. The electronic equipment also includes multiple write-back registers. The write-back registers are configured to store information in parallel with the operation of the electronic equipment. The electronic equipment also includes a fault condition detector. The fault condition detector is configured to detect fault conditions of the main power supply. The fault condition detector is also configured to activate an alternative power supply path to the alternative power supply in the event of a fault condition. The fault condition detector is further configured to initiate a transfer of information from the write-back registers to the non-volatile memory in the event of a fault condition.
[0005] In another aspect, a method is presented. This method includes: a) Store information in the write-back register of the electronic device in parallel with the operation of the electronic device. b) Inspect the main power supply for fault conditions. c) Activate the alternative power path to the alternative power source. d) Initiate the transfer of information from the write-back register to the non-volatile memory of the electronic device.
[0006] In another aspect, the use of an electronic device, system, and / or method for automotive applications is presented.
[0007] Those skilled in the art will recognize the additional features and advantages upon reading the following detailed description and viewing the accompanying drawings. Attached Figure Description
[0008] This disclosure is illustrated by way of example and in a non-limiting manner, in which the same reference numerals refer to similar or identical elements. The elements in the figures are not necessarily proportional to each other. Features of the various illustrated examples may be combined unless they exclude each other.
[0009] Figure 1 An example of a system including an electronic device according to the present disclosure is illustrated schematically.
[0010] Figure 2 Another example of a system including an electronic device according to this disclosure is illustrated schematically.
[0011] Figure 3 A flowchart illustrating an example of a method according to this disclosure is shown schematically. Detailed Implementation
[0012] The example described herein offers considerable advantages. Information can be stored in the write-back register of the presented electronic device in parallel with normal operation. In the event of a power failure, the fault condition detector of the presented electronic device can then facilitate another operation, at least temporarily, by connecting an alternative power source, such as a capacitor charged by the mains power supply during normal operation. In this alternative operation, the information stored in the write-back register can be transferred to the non-volatile memory of the presented electronic device for long-term storage in the absence of an alternative power source. Therefore, expensive simultaneous read-write memory architectures can be particularly avoided.
[0013] Figure 1 An example of a system 110 including electronic device 112 is schematically illustrated. Electronic device 112 can be configured for control applications, particularly automotive applications. For example, the application may be or may include actuators or sensors, lighting devices, or switches in a vehicle. System 110 may include a main power supply 114. For example, main power supply 114 may be a battery, such as a vehicle battery. System 110 includes an alternative power supply 116. For example, alternative power supply 116 may be a capacitor. In particular, the capacitor may be arranged such that the capacitor is charged by main power supply 114 during operation of electronic device 112. Main power supply 114 and alternative power supply 116 may be configured to provide equal power, such as 48 V, to electronic device 112. The capacitor may be configured to provide this power to electronic device 112 at least temporarily. Main power supply 114 may be external to electronic device 112. Alternative power supply 116 may also be external to electronic device 112. In other words, main power supply 114 and alternative power supply 116 may not be part of electronic device 112. Electronic device 112 may be a semiconductor device 112. For example, electronic device 112 may be an integrated circuit or may include one or more integrated circuits, which may be arranged, for example, on a printed circuit board.
[0014] Electronic device 112 includes non-volatile memory 118. Non-volatile memory 118 is configured to store information independent of power supply. Therefore, even if the main power supply 114 and / or the alternative power supply 116 may not provide power to electronic device 112, non-volatile memory 118 can still store information. For example, non-volatile memory 118 may be selected from the group consisting of flash memory, non-volatile random access memory, and erasable programmable read-only memory. However, other options are also possible. The information may specifically be or may include diagnostic information about the operation of electronic device 112 and / or about applications controlled by electronic device 112. More specifically, diagnostic information may include information about at least one of the following: the temperature of electronic device 112 or at least a portion thereof, the voltage supplied to electronic device 112, the operating time of electronic device 112, timestamps, power consumption of electronic device 112, and special conditions of electronic device 112. Again, other options are also possible. Special conditions may refer to conditions set at the application controlled by electronic device 112.
[0015] Electronic device 112 also includes multiple write-back registers 120. Write-back registers 120 are configured to store information in parallel with the operation of electronic device 112. In other words, write-back registers 120 may be registers configured to write back information when instructions are executed during the operation of electronic device 112 or to directly store information. Such write-back registers 120 can be executed, particularly in an immediate and rapid manner. Therefore, write-back registers 120 can be quickly accessible. For example, electronic device 112 can execute instructions for controlling an application and directly store information such as the results of the execution in write-back registers 120. Electronic device 112 can, for example, perform adjustment or sensing operations at a controlled application and directly store corresponding diagnostic information, such as for specific cases, in write-back registers 120. Write-back registers 120 can be buffers. In particular, write-back registers 120 can be buffers for storing information until the information is stored in another storage device, particularly in non-volatile memory 118. In other words, write-back registers 120 can be intermediate storage devices. For example, write-back registers 120 can form a cache or can be part of a cache. However, other options are also possible.
[0016] Electronic device 112 also includes a fault condition detector 122. The fault condition detector can be, for example, an undervoltage condition, an overvoltage condition, or an overheating condition. Other options may also be feasible. Thus, a fault condition can be a deviation from normal conditions. Normal conditions can be, for example, a power supply with a predefined voltage (e.g., 48 V). Thus, a fault condition can be, for example, a power supply with a different or at least significantly different voltage (such as a voltage exceeding a predefined threshold voltage). Fault conditions can include failure or malfunction of electronic device 112 or at least a portion thereof, or failure or malfunction of external devices to electronic device 112, particularly main power supply 114. Fault conditions can include failure events, such as failure or malfunction of main power supply 114. For example, if the supplied voltage decreases to below a predefined threshold voltage, there may be a fault condition of main power supply 114. Fault condition detector 122 is configured to detect a fault condition of main power supply 114. Thus, fault condition detector 122 can be configured to at least observe or sense main power supply 114. The fault condition detector 122 can also be configured to observe or sense other components, such as electronic device 112 or at least a portion thereof and / or alternative power supply 116. The fault condition detector 122 may include, for example, at least one of a voltage detector, a temperature detector, and a current detector. Other options may also be feasible.
[0017] The fault condition detector 122 is also configured to activate the alternative power path 124 to the alternative power supply 116 in the event of a fault. The alternative power path 124 may be or may include a connection to the alternative power supply 116, particularly a wired connection. Therefore, the alternative power path 124 may be or may include wires and / or traces. Thus, the fault condition detector 122 may be configured to connect the alternative power supply 116 to the electronic device 112 or at least to a portion of the electronic device 112. The fault condition detector 122 may also be configured to disconnect the main power supply 114. The fault condition detector 122 may include, for example, a switching element for this purpose. The fault condition detector 122 may also be configured to disconnect or disable components of the electronic device 112, particularly components not essential for the operation of the electronic device 112. Therefore, power can be saved for essential components. In the event of a fault, the electronic device 112 may operate under limited conditions and not have full functionality. The alternative power supply 116 may only be configured to provide power to the electronic device 112 for a limited period of time during a fault condition. This may require adequate power management and prioritization of certain processes, such as sufficient information storage before the power supply ends.
[0018] The fault condition detector 122 is also configured to initiate an information transfer 126 from the write-back register 120 to the non-volatile memory 118 in the event of a fault condition. In other words, the fault condition detector 122 can be configured to trigger or initiate the information transfer 126. Other components may be involved in implementing the information transfer 126, which will also be described in further detail below. However, as indicated, the fault condition detector 122 can detect a fault condition, and this can initiate other measures for implementing the information transfer 126, which may optionally involve other components. The information transfer 126 may include writing information stored in the write-back register 120 to the non-volatile memory 118. The information may specifically be represented as data. Therefore, and as will also be described in further detail below, the information transfer 126 may include writing data stored in the write-back register 120 to a predefined address in the non-volatile memory 118. The address may also be stored again in the write-back register 120, particularly in other write-back registers 120 that do not store the data mentioned above. The data may specifically be digital data. Therefore, information transmission 126 can be or may include data transmission, and in particular digital data transmission, such as via a data cable.
[0019] Figure 2 Another example of a system 110 including electronic device 112 is schematically illustrated. At least in many respects, in... Figure 2 The system 110 shown in the figure corresponds to the system in Figure 1 The system 110 is illustrated in the figure. Therefore, at least in many respects, when describing... Figure 2 For reference, please refer to the above text. Figure 1 The description will not be repeated below. For example... Figure 2 As shown, write-back register 120 may specifically include at least one write-back data register 128 and at least one write-back address register 130. Write-back data register 128 may be configured to store data. Write-back address register 130 may be configured to store an address. Therefore, information transfer 126 may include transferring data stored in write-back data register 128 to an address in non-volatile memory 118, wherein the address is stored in write-back address register 130.
[0020] like Figure 2As further shown, electronic device 112 may include controller 132. Controller 132 may be arranged in alternative power path 126. Controller 132 may be configured to at least control or manage the transfer 126 of information from write-back register 120 to non-volatile memory 118. Therefore, controller 132 may include state machine 134. State machine 134 may be configured to process, in particular, a predefined state for another operation of electronic device 112 in a stepwise manner in the event of a failure condition. State machine 134 may be, in particular, a finite state machine. Therefore, state machine 134 may include several states, particularly a finite number of states, and may be configured to transition from one state to another. Transitions may be triggered by inputs such as external events. State machine 134 may generate outputs based on the current state.
[0021] State machine 134 can be activated in the event of a fault condition, particularly by fault condition detector 122. State machine 134 may specifically include states as described below. A first state may include disabling unnecessary components of electronic device 112, such as components that do not perform safety-critical tasks or components such as information transmission 126 that are not needed. For example, fault condition detector 122 may be disabled in this state because a fault condition has been detected, making further observation unnecessary. Therefore, controller 132 may also be configured to disable one or more components of electronic device 112. Figure 2 As shown, electronic device 112 may also include at least one dedicated component 136, such as a sensor, actuator, lighting device, or switch. Therefore, controller 132 can be configured to disable dedicated component 136 in the event of a fault condition, particularly if the dedicated component is not safety-critical. Another state may include ensuring power to a required component, such as power to non-volatile memory 118, such as by connecting electronic device 112 to an alternative power supply 116. Another state may include performing a data transfer 126 from write-back register 120 to non-volatile memory 118. Completion of a previous task may trigger a transition of state machine 134 to a subsequent state.
[0022] Additionally or alternatively, controller 132 may include adapter 138. Adapter 138 may be configured to adapt or manage power supplied by alternative power source 116. As already indicated, alternative power source 116 may be, in particular, a capacitor. Therefore, adapter 138 may be specifically configured to adapt power supplied by a capacitor. For example, the capacitor may be a 48 V capacitor. However, internal logic components of electronic device 112 may require significantly lower voltages. For example, non-volatile memory 118 may require 3 V for operation. Therefore, adapter 138 may be, in particular, a voltage converter. Furthermore, as already indicated, alternative power source 116 may be configured only to supply power to electronic device 112 or at least a portion thereof for limited time periods. Therefore, adapter 138 may be configured to monitor the state of alternative power source 116, specifically enabling the controller to disable or enable selected components of electronic device 112 based on the remaining available power.
[0023] In summary, during normal operation, the main power supply 114 can provide power to the electronic device 112. However, in the event of a failure condition of the main power supply 114, such as a power supply with a voltage below a predefined threshold, which can be detected by the fault condition detector 122, the fault condition detector 122 can trigger other actions. The fault condition detector 122 can activate the alternative power path 124 from the electronic device 112 to the alternative power supply 116, such as a capacitor charged by the main power supply during normal operation. In particular, the fault condition detector 122 can activate the controller 132, which includes a state machine 134 and an adapter 138. According to a predefined sequence in the state machine 134, the controller 132 can disable selected components of the electronic device 112, such as the fault condition detector 122 or the dedicated component 136, especially if the dedicated component 136 is not performing a safety-critical task. Furthermore, the controller 132 can ensure a sufficient alternative power supply, at least for a limited period of time. In particular, the adapter 136 can adapt the power supplied to the electronic device 112 from the alternative power supply 116 according to the requirements of the components of the electronic device 112 that are still functional. In addition, the controller 132 can manage the information transfer 126 from the write-back register 120 to the non-volatile memory 118, so that the information is safely stored independently of the power supply.
[0024] Figure 3The diagram illustrates a flowchart of an example method for implementing the program mentioned above. The method includes the following method steps. The presented method steps can be performed in the indicated order. However, it should be noted that different orders are also possible. The method may include other method steps not listed. Furthermore, one or more method steps may be performed once or repeatedly. Additionally, two or more method steps may be performed simultaneously or in a timely overlapping manner. The method may be at least partially computer-implemented. Therefore, one or more of the following method steps may be computer-implemented. a) (indicated by reference numeral 140) stores information in the write-back register 120 of the electronic device 112 in parallel with the operation of the electronic device 112. b) (indicated by reference numeral 142 in the attached drawing) Detect the fault condition of the main power supply 114. c) (indicated by reference numeral 144) activates the alternative power path 124 to the alternative power supply 116. d) (indicated by reference numeral 146) initiates information transfer 126 from write-back register 120 to non-volatile memory 118 of electronic device 112.
[0025] Specifically, step d) can be prioritized during the remaining operation of electronic device 112. Therefore, other processes can be disabled so that information transmission 126 can be safely performed using the remaining power from alternative power supply 116. Unrequired components of electronic device 112 can be specifically disabled, as outlined in further detail above, so that the remaining power is not used for information transmission 126. Also, as indicated, step d) can specifically include transferring data stored in write-back data register 128 to an address stored in non-volatile memory 118 in write-back address register 130. Further details regarding this method can also be found in the above... Figure 1 and Figure 2 The system 110 and electronic device 112 are described in a manner that enables their implementation. The system 110, electronic device 112, and / or the described method can be particularly used in automotive applications. Therefore, they can be used to control applications in a vehicle, such as actuators, sensors, lighting devices, or switches.
[0026] In addition to the examples mentioned above, this article presents the following examples:
[0027] Example 1: An electronic device comprising: Non-volatile memory, configured to store information independent of power supply. Multiple write-back registers are configured to store information in parallel with the operation of the electronic device, and Fault condition detector, configured to: Detect the main power supply for fault conditions. In the event of a fault, the alternative power path to the backup power supply is activated, and In the event of a fault, an information transfer is initiated from the write-back register to the non-volatile memory.
[0028] Example 2: According to the electronic device described in the previous example, the fault condition is selected from the group consisting of: undervoltage condition, overvoltage condition, and overheat condition.
[0029] Example 3: The electronic device according to any one of the preceding examples further includes: An alternative power path controller, configured to control information transfer from the write-back register to non-volatile memory.
[0030] Example 4: An electronic device according to the preceding example, wherein the controller includes a state machine, wherein the state machine is configured to progressively process a predefined state for another operation of the electronic device in the event of a failure condition.
[0031] Example 5: An electronic device according to any one of the two preceding examples, wherein the controller is further configured to disable one or more components in the electronic device.
[0032] Example 6: An electronic device according to the preceding example, wherein the electronic device further includes at least one dedicated component, wherein the controller is configured to disable the dedicated component in the event of a fault condition.
[0033] Example 7: An electronic device according to any one of the four preceding examples, wherein the controller further includes an adapter configured to adapt to power supplied by an alternative power source.
[0034] Example 8: An electronic device according to the preceding example, wherein the alternative power source is a capacitor, and an adapter is configured to adapt the power supplied by the capacitor.
[0035] Example 9: An electronic device according to any one of the preceding examples, wherein the non-volatile memory is selected from the group consisting of: flash memory, non-volatile random access memory, erasable programmable read-only memory.
[0036] Example 10: An electronic device according to any of the preceding examples, wherein signals stored in a write-back register in parallel with the operation of the electronic device and transmitted to the non-volatile memory in the event of a fault include diagnostic information about the operation of the electronic device.
[0037] Example 11: An electronic device according to the preceding examples, wherein the diagnostic information includes information about at least one of the following: the temperature of the electronic device or at least a portion thereof, the voltage supplied to the electronic device, the operating time of the electronic device, a timestamp, the power consumption of the electronic device, and the dedicated state of the electronic device.
[0038] Example 12: An electronic device according to any one of the preceding examples, wherein the write-back register includes: At least one write-back data register is configured to store data, and At least one write-back address register is configured to store an address.
[0039] Example 13: An electronic device according to the preceding example, wherein information transmission includes: transferring data stored in a write-back data register to an address in non-volatile memory, wherein the address is stored in a write-back address register.
[0040] Example 14: An electronic device according to any of the preceding examples, wherein the electronic device is a semiconductor device.
[0041] Example 15: A system comprising an alternative power source and electronic devices. The electronic devices include: Non-volatile memory, configured to store information independent of power supply. Multiple write-back registers are configured to store information in parallel with the operation of the electronic device, and Fault condition detector, configured to: Detect the main power supply for fault conditions. In the event of a fault, the alternative power path to the backup power supply is activated, and In the event of a fault, an information transfer is initiated from the write-back register to the non-volatile memory.
[0042] Example 16: A system according to the preceding examples, wherein the electronic device is an electronic device according to any of the preceding examples involving electronic devices.
[0043] Example 17: A system according to any one of the preceding system examples, wherein the alternative power source is a capacitor.
[0044] Example 18: A system according to the preceding example, wherein the capacitor is arranged such that the capacitor is charged by the main power supply during operation of the electronic device.
[0045] Example 19: The system according to any one of the preceding system examples further includes a main power supply.
[0046] Example 20: A system according to the preceding example, wherein the main power supply and the alternative power supply are configured to provide equal power to the electronic equipment.
[0047] Example 21: A system according to any one of the two preceding examples, wherein the main power source is a battery.
[0048] Example 22: A method comprising: a) Store information in the write-back register of the electronic device in parallel with the operation of the electronic device. b) Inspect the main power supply for fault conditions. c) Activate the alternative power path to the alternative power source. d) Initiate the transfer of information from the write-back register to the non-volatile memory of the electronic device.
[0049] Example 23: The method according to the preceding examples, wherein the electronic device is an electronic device according to any of the preceding examples involving electronic devices.
[0050] Example 24: The method according to any one of the preceding method examples, wherein step d) is prioritized during the remaining operation of the electronic device.
[0051] Example 25: The method according to any one of the preceding method examples, wherein step d) includes: transferring data stored in the write-back data register to an address stored in the write-back address register in non-volatile memory.
[0052] Example 26: A method according to any one of the preceding method examples, wherein the method is at least partially computer-implemented.
[0053] Example 27: Use of at least one of the following in an automotive application: an electronic device according to any of the preceding examples of an electronic device, a system according to any of the preceding examples of a system, and a method according to any of the preceding examples of a method.
[0054] While specific examples have been illustrated and described herein, those skilled in the art will understand that various alternatives and / or equivalent implementations may be used in place of the specific examples shown and described without departing from the scope of this disclosure. This application is intended to cover any modifications or variations of the specific examples discussed herein. Therefore, this disclosure is intended to be limited only by the claims and their equivalents.
[0055] It should be noted that the methods and apparatuses, including their preferred embodiments, as outlined in this document can be used alone or in combination with other methods and apparatuses disclosed in this document. Furthermore, the features outlined in the context of the apparatus are also applicable to the corresponding methods, and vice versa. Moreover, all aspects of the methods and apparatuses outlined in this document can be combined arbitrarily. In particular, the features of the claims can be combined with each other in any manner.
[0056] It should be noted that the specification and drawings merely illustrate the principles of the proposed methods and systems. Those skilled in the art will be able to implement various arrangements, which, although not expressly described or shown herein, embody the principles of this disclosure and are included within its spirit and scope. Furthermore, all examples and embodiments outlined in this document are primarily intended for illustrative purposes only to aid the reader in understanding the principles of the proposed methods and systems. In addition, all statements regarding the principles, aspects, and embodiments of this disclosure, as well as specific examples thereof, are provided herein to cover their equivalents.
Claims
1. An electronic device (112), comprising: Non-volatile memory (118) is configured to store information independent of power supply. Multiple write-back registers (120) are configured to store information in parallel with the operation of the electronic device (112), and Fault condition detector (122) is configured to: Check the fault status of the main power supply (114). In the event of the aforementioned fault condition, the alternative power path (124) to the alternative power supply (116) is activated, and In the event of the fault, an information transfer (126) is initiated from the write-back register (120) to the non-volatile memory (118).
2. The electronic device (112) according to claim 1, wherein the fault condition is selected from the group consisting of: undervoltage condition, overvoltage condition, and overheating condition.
3. The electronic device (112) according to claim 1 or 2 further comprises: The controller (132) in the alternative power path (124), wherein the controller (132) is configured to control the information transfer (126) from the write-back register (120) to the non-volatile memory (118).
4. The electronic device (112) according to claim 3, wherein the controller (132) includes a state machine (134), wherein the state machine (134) is configured to progressively process a predefined state for another operation of the electronic device (112) in the event of the failure condition.
5. The electronic device (112) according to claim 3 or 4, wherein the controller (132) is further configured to disable one or more components in the electronic device (112).
6. The electronic device (112) according to claim 5, wherein the electronic device (112) further comprises at least one dedicated component (136), wherein the controller (132) is configured to disable the dedicated component (136) in the event of the fault condition.
7. The electronic device (112) according to any one of claims 3-6, wherein the controller (132) further comprises an adapter (138) configured to adapt to the power supplied by the alternative power source (116).
8. The electronic device (112) of claim 7, wherein the alternative power source (116) is a capacitor, and wherein the adapter (138) is configured to adapt to the power provided by the capacitor.
9. The electronic device (112) according to any one of claims 1-8, wherein the information stored in the write-back register (120) in parallel with the operation of the electronic device (112) and transmitted to the non-volatile memory (118) in the event of the fault condition includes diagnostic information regarding the operation of the electronic device (112).
10. The electronic device (112) according to claim 9, wherein the diagnostic information includes information about at least one of the following: the temperature of the electronic device (112) or at least a portion thereof, the voltage supplied to the electronic device (112), the operating time of the electronic device (112), a timestamp, the power consumption of the electronic device (112), and the dedicated state of the electronic device (112).
11. The electronic device (112) according to any one of claims 1-10, wherein the write-back register (120) comprises: At least one write-back data register (128) is configured to store data, and At least one write-back address register (130) is configured to store an address.
12. The electronic device (112) according to claim 11, wherein the information transmission (126) comprises: The data stored in the write-back data register (128) is transferred to the address in the non-volatile memory (118), wherein the address is stored in the write-back address register (130).
13. A system (110) including an alternative power source (116) and electronic devices (112), wherein the electronic devices (112) include: Non-volatile memory (118) is configured to store information independent of power supply. Multiple write-back registers (120) are configured to store information in parallel with the operation of the electronic device (112), and The fault condition detector (122) is configured to: Check the fault status of the main power supply (114). In the event of the aforementioned fault condition, the alternative power path (124) to the alternative power supply (116) is activated, and In the event of the fault, an information transfer (126) is initiated from the write-back register (120) to the non-volatile memory (118).
14. The system (110) of claim 13, wherein the alternative power source (116) is a capacitor.
15. The system (110) according to claim 13, wherein the capacitor is arranged such that the capacitor is charged by the main power supply (114) during operation of the electronic device (112).
16. The system (110) according to any one of claims 13-15 further includes the main power supply (114).
17. The system (110) of claim 16, wherein the main power supply (114) and the alternative power supply (116) are configured to provide equal power to the electronic device (112).
18. A method comprising: a) Information is stored in the write-back register (120) of the electronic device (112) in parallel with the operation of the electronic device (112). b) Inspect the main power supply (114) for fault conditions. c) Activate the alternative power path (124) to the alternative power source (116). d) Initiate information transfer from the write-back register (120) to the non-volatile memory of the electronic device (112).
19. The method of claim 18, wherein step d) is prioritized during the remaining operation of the electronic device (112).
20. Use of at least one of the electronic devices (112) according to any one of claims 1-12, the system according to any one of claims 13-17, and the method according to any one of claims 18-19 in an automotive application.