US Patent Issued to TEXAS INSTRUMENTS on Feb. 3 for "Multiple access port circuits" (Texas Inventor)

ALEXANDRIA, Va., Feb. 3 -- United States Patent no. 12,540,974, issued on Feb. 3, was assigned to TEXAS INSTRUMENTS Inc. (Dallas).

"Multiple access port circuits" was invented by Lee D. Whetsel (Parker, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "The disclosure describes a novel method and apparatus for providing a shadow access port within a device. The shadow access port is accessed to perform operations in the device by reusing the TDI, TMS, TCK and TDO signals that are used to operate a test access port within the device. The presence and operation of the shadow access port is transparent to the presence and operation of the test access port. According to the disclosure, the shadow access port o...