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Interface expansion device and method

An interface expansion and interface technology, applied in the field of interface expansion devices, can solve the problem of insufficient GPIO interface and so on

Pending Publication Date: 2020-05-08
XIAN YIPU COMM TECH
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] The embodiment of the present application provides an interface expansion device and method to solve the problem that the GPIO interface of the PCH is not enough

Method used

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  • Interface expansion device and method

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Embodiment Construction

[0027] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0028] In a computer, the motherboard supports the normal operation of the main hardware components of the computer and is one of the core components of the computer. The PCH chip is the core component of the motherboard.

[0029] Currently, in order to reduce the size of the PCH, the GPIO interface in the PCH is reduced. For example, IntelLewisburg ...

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Abstract

The embodiment of the invention provides an interface extension device and method. The interface extension device is used for a platform control center PCH, and comprises an interface extension unit with a plurality of general input / output GPIO interfaces, and a bus. The PCH is connected with the interface expansion unit through the bus. The interface expansion unit comprises a serial input / parallel output register and / or a parallel input / serial output register. The serial input / parallel output register is used for receiving a serial signal sent by the PCH through the bus, converting the serial signal into a parallel signal and outputting the parallel signal, so that the output signal interface of the PCH can be expanded. The parallel input / serial output register is used for converting anexternal parallel signal into a serial signal and sending the serial signal to the PCH through the bus, so that the input signal interface of the PCH can be expanded.

Description

technical field [0001] The embodiments of the present application relate to the field of chip technology, and in particular, to an interface expansion device and method. Background technique [0002] With the continuous development of science and technology, the penetration rate of computers is getting higher and higher. In a computer, the motherboard supports the normal operation of the main hardware components of the computer and is one of the core components of the computer. The Platform Controller Hub (PCH) chip is the core component of the motherboard. [0003] Currently, in order to reduce the size of the PCH, the general-purpose input / output (GPIO for short) interface in the PCH is reduced. For example, the Intel Lewisburg PCH has 259 GPIOs, and the new generation PCH has been reduced to 192 GPIOs. [0004] However, for the PCH that reduces the number of GPIO interfaces, it often happens that the GPIO interfaces are not enough. Contents of the invention [0005] ...

Claims

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Application Information

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IPC IPC(8): G06F13/40G06F13/42
CPCG06F13/4068G06F13/4282Y02D10/00
Inventor 李健健
Owner XIAN YIPU COMM TECH
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