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Driving capability and self-adjustment method and device of chip terminal resistance value

A technology of driving capability and terminating resistance, applied in electrical components, logic circuits, pulse technology, etc.

Active Publication Date: 2017-06-06
NOVATEK MICROELECTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The output interface physical layer receives an operating voltage

Method used

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  • Driving capability and self-adjustment method and device of chip terminal resistance value
  • Driving capability and self-adjustment method and device of chip terminal resistance value
  • Driving capability and self-adjustment method and device of chip terminal resistance value

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Embodiment Construction

[0043] figure 1 It is a system schematic diagram of a device for self-adjusting driving capability and chip terminal resistance according to an embodiment of the present invention. Please refer to figure 1 , in this embodiment, the device 100 for self-adjustment of drive capability and chip terminal resistance includes a system circuit 110, an output interface entity layer 120, a ring oscillator ROSC, a counter 130, a control unit 140, and a storage element 150, wherein the output interface For example, Universal Serial Bus (USB) 2.0, third-generation Double-Data-Rate Memory Three (DDR3) transmission interface or High Definition Multimedia (HDMI), etc. . The storage element 150 is used to store a reference count value CNTR, and may be a storage device such as an Electrically Erasable Programmable Read Only Memory (EEPROM), a flash memory (FLASH Memory) or an electronic fuse (eFuse). element. The output interface physical layer 120 receives the operating voltage VOP, and is...

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PUM

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Abstract

The invention provides a method and a device for self-regulation of drive capacity and chip terminal resistance. The device comprises an output interface physical layer and an annular oscillator. The output interface physical layer is used for receiving an operating voltage. The annular oscillator surrounds the output interface physical layer so as to sense a working temperature or the operating voltage of the output interface physical layer to provide a sensing result. The drive capacity of the output interface physical layer or the resistance of a terminal resistor on a chip can be adjusted according to the sensing result.

Description

technical field [0001] The present invention relates to a self-adjustment method and device thereof, and in particular to a method and device for self-adjustment of the driving capability of the output interface entity layer and chip terminal resistance value. Background technique [0002] With the advancement of semiconductor manufacturing technology, integrated circuits have become possible, that is, circuits can be chipped. Since the chip has the advantages of high performance and low cost, circuit chips have become a trend. Moreover, since electronic devices are gradually developing toward digitalization, circuit chips are quickly applied to electronic devices. However, since the signal transmission method inside the chip is different from the signal transmission method outside the chip, an output interface physical layer is configured in the chip to transmit the signal inside the chip to the outside of the chip. According to the above, in order to transmit signals cor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03K19/00
Inventor 庄曜诚黄一桓
Owner NOVATEK MICROELECTRONICS CORP