Patent · US Active

Sharing a JTAG interface among multiple partitions

US10101387B1 · kind B1 · utility

15Cited by
4References
20Claims
0Family size

Assignee

Inventors

Key dates

Filing dateFeb 9, 2017
Grant dateOct 16, 2018
Priority date—
Expiry dateFeb 9, 2037

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01R31/318563
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

An integrated circuit device includes a first partition and a second partition. The integrated circuit device also includes a Joint Test Action Group (JTAG) system that controls at least a portion of the integrated circuit device via multiple logic signals. The JTAG system includes a JTAG interface receives the multiple logic signals. The JTAG system also includes a JTAG hub instantiated in the first partition and being communicatively coupled to the JTAG interface. The JTAG system further includes JTAG-based logic instantiated in the second partition. The integrated circuit device further includes an interface instantiated in the first partition configured to communicatively couple the JTAG hub to the JTAG-based logic.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.