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Power Mesh Architecture for Voltage Regulation in Programmable Integrated Circuits

An integrated circuit and voltage technology, applied in the direction of programmable logic circuit devices, logic circuits, logic circuit interface devices, etc., can solve the problems that cannot be applied to programmable ICs, programmable chips are difficult to reach the signal boundary, increase the complexity of voltage regulation, etc. question

Active Publication Date: 2021-01-08
XILINX INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The far reaching signal boundaries of programmable chips in programmable ICs (such as FPGAs) increase the complexity of implementing voltage regulation
Specifically, techniques used for ASICs cannot be applied to programmable ICs

Method used

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  • Power Mesh Architecture for Voltage Regulation in Programmable Integrated Circuits
  • Power Mesh Architecture for Voltage Regulation in Programmable Integrated Circuits
  • Power Mesh Architecture for Voltage Regulation in Programmable Integrated Circuits

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Embodiment Construction

[0017] Various features are described below with reference to the drawings. It should be noted that the drawings may or may not be drawn to scale and that elements having similar structure or function are represented by like reference numerals throughout. It should be noted that the drawings are only intended to facilitate the description of the features. It is not intended as an exhaustive description of the claimed invention or as a limitation on the scope of the claimed invention. Furthermore, the illustrated embodiments do not necessarily have all the aspects or advantages shown. An aspect or advantage described in connection with a particular embodiment does not necessarily limit that embodiment, and the aspect or advantage can be practiced in any other embodiment even though it is not shown or described in detail in any other embodiment.

[0018] The techniques described herein provide a power mesh architecture for voltage regulation in programmable integrated circuits...

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Abstract

In one example, a programmable integrated circuit (IC) includes a first logic tile in a first power domain having a first local voltage. The first logic tile includes a driver operable to use the first local voltage to output a signal having a logic-level referenced to the first local voltage. The first logic tile further includes a level-shifter coupled to receive the signal from the driver and operable to output a level-shifted signal having a logic-level referenced to a global handshaking voltage. The programmable IC further includes a second logic tile in a second power domain having a second local voltage, the second logic tile including a receiver operable to use the second local voltage to receive the level-shifted signal. The global handshaking voltage is at least as high as the first local voltage and at least as high as the second local voltage.

Description

technical field [0001] Embodiments of the present disclosure relate generally to electronic circuits, and more particularly to power grid architectures for voltage regulation in programmable integrated circuits. Background technique [0002] Voltage regulation in integrated circuits (ICs) can be used to control power consumption. For example, an application specific integrated circuit (ASIC) design may be specified to have multiple different power domains. Different modules or subsystems may be designed for operation using different voltages. Level shifters can be used at the interface between multiple modules / subsystems operating in different power domains. Since the ASIC uses a structured floorplan, the level shifter can use the supply voltage and the target voltage at the planned interface. [0003] Programmable integrated circuits (ICs) are often used to implement digital logic operations based on user-configurable inputs. Exemplary programmable ICs include Complex P...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03K19/0175
CPCH03K19/017509H03K19/017581H03K19/17704
Inventor S·K·苏德
Owner XILINX INC
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