Programmable circuit and method for controlling external power output

Abstract

The invention relates to a programmable circuit and a method for controlling external power output. The programmable circuit comprises a user programmable logic device and a power management unit (PMU); and the user programmable logic device is used for detecting a voltage sent to the user programmable logic device by the PMU currently according to clock information input by an external device, generating clock information according to the detected voltage, comparing the clock information with the clock information input by the external device, and dynamically controlling the voltage output tothe user programmable logic device by the PMU according to a comparison result. A kernel voltage is dynamically generated by a single input voltage, so that the problems of complex multi-power voltage management of a programmable chip and the like are solved. The kernel voltage is dynamically adjusted according to the reference clock information input by the external device; and under different speed demands, static power consumption and dynamic power consumption can be automatically adjusted according to the demands, so that the same chip has two different functions of low power consumptionand high speed, and the programmability of the programmable chip in power consumption and speed is realized.

Description

technical field [0001] The invention relates to the field of chips, in particular to a programmable circuit for controlling the output of an external power supply and a method thereof. Background technique [0002] Because the interfaces of programmable devices are relatively rich, they can support various interfaces of different voltages, such as analog voltage input interface, core (core) power input interface, special module power input interface, external power input interface of BANK, etc. Various interfaces with different voltages make the chip power supply very complicated. Contents of the invention [0003] The invention provides a programmable circuit for controlling the output of an external power supply and a method thereof. A single power supply is adopted, the power consumption can be dynamically adjusted, and voltages suitable for different voltage interfaces are generated, which solves the problem of complicated chip power supplies. [0004] In the first as...

AI Technical Summary

Problems solved by technology

[0003] The invention provides a programmable circuit and its method for controlling the output of an external power supply, adopting a single power supply, the power consumption can be dynamically adjusted, and the voltage suitable for different voltage interfaces can be generated, which solves the problem of complex chip power supply

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