Electronic circuits and methods for transmitting data
A technology of electronic circuits and input circuits, which is applied to record carriers, electrical components, and electrical pulses used in machines, and can solve problems such as inability to guarantee data correctness.
Active Publication Date: 2020-06-09
INFINEON TECH AG
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
However, for information transfer between different clock domains, tools usually cannot guarantee data correctness due to unavoidable metastability physics, because data created in the source clock domain can be relative to the destination clock domain at any time Change
In these cases, data correctness has to be ensured by digital design methods
Method used
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Embodiment approach 1
[0075] Embodiment 1 is as Figure 8 The electronic circuit shown.
Embodiment approach 2
[0076] Embodiment 2 is the electronic circuit of embodiment 1, wherein the output circuit operates in the first clock domain or the analog domain, and the input circuit operates in the second clock domain.
Embodiment approach 3
[0077] Embodiment 3 is the electronic circuit of Embodiment 1, wherein the output circuit operates in a first clock domain configured to operate on a first clock signal, and the input circuit operates on a second clock domain configured to operate on a second clock signal. Operating in a second clock domain, wherein the input circuit is clocked by the second clock signal, and the first clock signal is different from the second clock signal.
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A method and electronic circuit for communicating data are disclosed. According to one embodiment, an electronic circuit is described comprising: an output circuit configured to output data elements; an input circuit configured to receive data elements from the output circuit, wherein the input circuit is clocked by a clock signal, and receiving data elements according to their timing; a signaling circuit configured to signal to interrupt the timing of the input circuit when the output circuit switches from the output of one data element to the output of the next data element; and a controller, It is configured to interrupt the timing of the input circuit in response to the signaling.
Description
technical field [0001] This disclosure relates to electronic circuits and methods for communicating data. Background technique [0002] Information transfer in digital logic can occur between logic located in the same clock domain, or between regions of different clock domains. Whenever a transfer occurs within the same clock domain, specific digital design tools (synthesis, static timing analysis, etc.) can be used to ensure the correctness of the information transfer. However, for information transfer between different clock domains, tools usually cannot guarantee data correctness due to unavoidable metastability physics, because data created in the source clock domain can be relative to the destination clock domain at any time Change. In these cases, data correctness has to be ensured by digital design methods. Therefore, an efficient method that enables data correctness to be ensured for data transfers on clock domain boundaries is desired. Contents of the invention...
Claims
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IPC IPC(8): G06K19/077
CPCG06K19/07749H03K3/0375H03K3/0372H03K3/66
Inventor 沃尔特·卡格尔赫尔穆特·科罗舍茨
Owner INFINEON TECH AG