US Patent 11747397 Addressable test access port apparatus
Patent 11747397 was granted and assigned to Texas Instruments on September, 2023 by the United States Patent and Trademark Office.
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US Patent 11747397 Addressable test access port apparatus
Article
The disclosure describes a novel method and apparatus for making device TAPs addressable to allow device TAPs to be accessed in a parallel arrangement without the need for having a unique TMS signal for each device TAP in the arrangement. According to the disclosure, device TAPs are addressed by inputting an address on the TDI input of devices on the falling edge of TCK. An address circuit within the device is associated with the device's TAP and responds to the address input to either enable or disable access of the device's TAP.
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Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
11747397
Patent Inventor Names
Lee D. Whetsel
Date of Patent
September 5, 2023
Patent Application Number
17508750
Date Filed
October 22, 2021
Patent Citations
Patent Primary Examiner
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