control chip

A technology for controlling chips and logic circuits, applied in program control, electrical program control, general control systems, etc., can solve the problems of control chip package size and increase in production cost, and achieve the effect of reducing the number of pins

Active Publication Date: 2016-01-06
MEDIATEK INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

As a result, the package size and production cost of the control chip will inevitably increase

Method used

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Embodiment Construction

[0015] Certain terms are used throughout the description and claims to refer to particular components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. The specification and claims do not use the difference in name as a way to distinguish components, but use the difference in function of components as a criterion for distinguishing. The "comprising" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". In addition, the term "coupled" herein includes any direct and indirect electrical connection means. Therefore, if it is described that a first device is coupled to a second device, it means that the first device may be directly electrically connected to the second device, or indirectly electrically connected to the second device through other devices or connection means.

[0016] figure 2 It is a schematic diagram illustra...

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Abstract

The invention provides a control chip, which includes configurable pins and a control logic circuit. The configurable pin is coupled to the first pin and the second pin of the high-definition multimedia interface connector. The control logic circuit controls the configurable pin to switch between a first operation mode and a second operation mode. The configurable pin is used as an input pin when operating in the first mode of operation, and the configurable pin is used as an output pin when operating in the second mode of operation. For example, the input pin is used to receive a power supply signal from the +5V power signal from the first pin, and the output pin is used to output a control signal to control hot plug detection. The control chip provided by the invention can reduce the number of pins of the control chip.

Description

technical field [0001] The present invention relates to a control chip, in particular to a control chip that uses configurable pins to selectively function as input pins (for example, pins used to receive power supply signals for connection detection) or output pins. The control chip communicates with the wired connection interface through pins (for example, pins for outputting control signals for controlling hot plug detection). Background technique [0002] A high-definition multimedia interface (high-definition multimedia interface, HDMI) is a small audio / video interface used to transmit digital data, for example, a high-definition multimedia interface source device (for example, a set-top box (set-top box), a CD player, A video game console or a personal computer) is connected to a high-resolution multimedia receiving device (HDMI sink device) (for example, a video projector, a TV or a computer monitor) through a high-definition multimedia interface cable (HDMI cable). ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/04
CPCG05B19/0423G05B2219/25123G05B2219/21012G06F15/17343
Inventor 潘青谷冯怀元
Owner MEDIATEK INC
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