Electronic device with power-off partition and partition power-off method thereof
A technology of electronic devices and power domains, applied in electrical digital data processing, instruments, calculations, etc., can solve problems such as signal incommunication, unknown signal interference, isolation unit failure, etc., and achieve the effect of reducing design cost and design schedule
Pending Publication Date: 2022-04-01
AICONNX TECH CORP
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In addition, in order to accurately prevent unknown signals from entering the first power domain from the second power domain, it is necessary to precisely design the time for enabling the isolation unit to isolate the signal transmission between the first power domain and the second power domain (for example, to cause If it is enabled too early, the signals between the first power domain and the second power domain will not be communicated, and if it is enabled too late, unknown signals will interfere with the first power domain, causing the isolation unit to lose its function)
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[0035] Certain terms are used herein to refer to specific elements. It should be understood by those skilled in the art that hardware manufacturers may refer to the same element by different nouns. The difference in function of the elements should be used as a criterion for distinguishing, and the difference in name should not be used as a way of distinguishing the elements. The "comprising" mentioned in this text is an open-ended term, so it should be interpreted as "including but not limited to". In addition, the word "coupled" herein includes any means of direct and indirect electrical connection. Therefore, if a first device is described as being coupled to a second device, it means that the first device can be directly electrically connected to the second device. device, or indirectly electrically connected to a second device through other devices or connecting means.
[0036] refer to figure 1 , figure 1 It is a schematic block diagram of an electronic device 100 wit...
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The invention discloses an electronic device with a power-off partition and a partition power-off method of the electronic device. The electronic device comprises a signal sending module, two relay modules and a working module. Each relay module comprises a first power domain, a second power domain and a transceiver circuit located in the first power domain. When the second power domain is in a power-off mode, a transmission path between the first power domain and the second power domain is maintained at a logic level. The transceiver circuit of one of the two relay modules encodes the standby signal obtained from the signal transmission module and transmits a standby encoded signal, and the transceiver circuit of the other relay module decodes the standby encoded signal and transmits a standby decoded signal. The working module sends a power-off signal to the transceiving circuits of the two relay modules according to the standby decoding signal, so that the second power domain is in a power-off mode in response to the power-off signal.
Description
technical field [0001] The invention relates to a power-off technology for electronic devices, in particular to an electronic device with power-off partitions and a method for power-off of partitions. Background technique [0002] In the operation of an electronic device, in order to reduce energy consumption, each electronic component (such as an integrated circuit) in the electronic device is usually divided into multiple power domains, and the unused part of the electronic device is divided into multiple power domains. The power domain is turned off, and only part of the power domain is turned on to wake up the electronic device to make it work (for example, to wake up other turned off power domains in the electronic device, so that the previously turned off power domains can perform their corresponding Work). So at the same point in time, there will be one power domain in powered mode (referred to herein as the first power domain) and another power domain in unpowered (...
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IPC IPC(8): G06F1/3287
Inventor 童旭荣林裕彬宋廉祥程伟良
Owner AICONNX TECH CORP