Invention Grant
US09372948B1 Interconnect speed model characterization in programmable integrated circuits 有权
可编程集成电路中的互连速度模型表征

  • Patent Title: Interconnect speed model characterization in programmable integrated circuits
  • Patent Title (中): 可编程集成电路中的互连速度模型表征
  • Application No.: US14730609
    Application Date: 2015-06-04
  • Publication No.: US09372948B1
    Publication Date: 2016-06-21
  • Inventor: Nagaraj Savithri
  • Applicant: Xilinx, Inc.
  • Applicant Address: US CA San Jose
  • Assignee: XILINX, INC.
  • Current Assignee: XILINX, INC.
  • Current Assignee Address: US CA San Jose
  • Agent Keith Taboado; Robert M. Brush; Joshua Hamberger
  • Main IPC: H03K19/00
  • IPC: H03K19/00 G06F17/50 G01R31/317 G01R31/28 G01R31/3185
Interconnect speed model characterization in programmable integrated circuits
Abstract:
Techniques for using a speed measurement circuit to measure speed of an integrated circuit. The speed measurement circuit includes a ring oscillator and a counter circuit. The ring oscillator includes an AND gate with an inverting input and a non-inverting input. The ring oscillator also includes a programmable interconnect point context (PIP-context) having a first programmable interconnect point (PIP), a first interconnect, a second PIP, and a second interconnect coupled in series. The ring oscillator also includes a third interconnect and a third PIP coupled in series with the PIP-context and with an inverting input of the AND gate. The counter circuit is coupled to an output of the AND gate and configured in the programmable integrated circuit.
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