Title:
半導体装置及び同期化方法
Document Type and Number:
Japanese Patent JP7419944
Kind Code:
B2
Abstract:
Data is synchronized when transmitted from a circuit operated at first frequency to another circuit operated at second frequency. A synchronization method includes storing data write pointers in a line, storing data input from a source at first frequency at a location in a data buffer designated by the write pointer at one end of the line, taking out the write pointer at the one end from the line to store it in the synchronization buffer, synchronizing a validation signal input from the input source at first frequency to second frequency, reading out the write pointer stored in the synchronization buffer when the validation signal is synchronized, adding completion information that indicates completion of synchronization to the data stored at the location in the data buffer designated by the read out write pointer, and reading out, from the data buffer, the data to which the completion information is added.
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Inventors:
IwasakiShinichi
Application Number:
JP2020071580A
Publication Date:
January 23, 2024
Filing Date:
April 13, 2020
Export Citation:
Assignee:
富士通株式会社
International Classes:
G06F13/42; G06F13/38
Domestic Patent References:
| JP2004295819A |
Foreign References:
| US10120831 | ||||
| WO2019118040A1 |
Attorney, Agent or Firm:
Sakai International Patent Office