Invention Grant
- Patent Title: Method for cycle accurate data transfer in a skewed synchronous clock domain
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Application No.: US15573917Application Date: 2016-06-14
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Publication No.: US10775836B2Publication Date: 2020-09-15
- Inventor: Gyan Prakash , Nidhir Kumar
- Applicant: Synopsys, Inc.
- Applicant Address: US CA Mountain View
- Assignee: Synopsys, Inc.
- Current Assignee: Synopsys, Inc.
- Current Assignee Address: US CA Mountain View
- Agency: Fenwick & West LLP
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@2fe72110
- International Application: PCT/IN2016/000155 WO 20160614
- International Announcement: WO2016/203492 WO 20161222
- Main IPC: G06F1/12
- IPC: G06F1/12 ; G06F1/04 ; G11C7/22 ; G11C7/10 ; G06F5/06 ; G06F5/10 ; G06F9/38 ; G06F9/30 ; H03K19/20

Abstract:
A method and system for cycle accurate data transfer between skewed source synchronous clocks is envisaged. The procedure starts through reset. On reset, both the write and read address registers are set to point to location 0. Source clock is stopped to disable active clock edges to both write and read address registers during the reset procedure. The source clock is subsequently started to deliver active edges w both write and read address registers. On every active source clock edge, data is pushed into the data register based on the location pointed by write address resister. On every skewed active clock edge, data is read from the data register based on the address pointed by read address register. Due to the delayed nature of clock reaching the read address register, write address register increments first and stores data into the data register.
Public/Granted literature
- US20190004564A1 METHOD FOR CYCLE ACCURATE DATA TRANSFER IN A SKEWED SYNCHRONOUS CLOCK DOMAIN Public/Granted day:2019-01-03
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