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SDIO device, system and method for controlling same

A technology for secure digital input and output devices, which is applied in the direction of multi-programming devices, electrical digital data processing, digital data processing components, etc., can solve the problem of ability impact, wake-up SDIO device SDIO host time increases, and SDIO device cannot receive SDIO device and other issues to achieve the effect of reducing power consumption

Active Publication Date: 2015-02-11
MEDIATEK INC
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, in some cases, if the level of the supply voltage is reduced to a certain extent, the ability of the SDIO device to receive input signals sent by the SDIO host may be affected
This is due to the fact that the receiver of an SDIO device has difficulty properly decoding the high frequency signals defined in the SDIO specification when operating with a low supply voltage
Worst of all, the SDIO device cannot receive the signal used to wake the SDIO device from idle mode
This adverse effect increases the time to wake up the SDIO device and properly respond to the SDIO host

Method used

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  • SDIO device, system and method for controlling same
  • SDIO device, system and method for controlling same
  • SDIO device, system and method for controlling same

Examples

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Embodiment Construction

[0020] Certain words are used in the specification and claims to refer to specific elements. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish elements, but use differences in functions of elements as a criterion for distinguishing. The "including" mentioned in the entire 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 the text describes that the first device is coupled to the second device, it means that the first device can be directly electrically connected to the second device, or indirectly electrically connected to the second device through other devices or connecting means.

[0021] figure 1 It is a schematic diagram of the SDIO host 100 and...

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Abstract

Described in embodiments herein are techniques for placing a secure digital input output (SDIO) device in a sleep mode and waking up the SDIO device from the sleep mode. In accordance with an embodiment, a method of controlling the SDIO device comprising: writing a control value into a register of the SDIO device; allowing the SDIO device to switch to a first operation mode based on the control value written into the register; sending a first signal to the SDIO device through a first data terminal of the SDIO device; and allowing the SDIO device to switch to a second operation mode based on the first signal.

Description

[0001] Cross references to related applications [0002] This application claims the following priority: the U.S. provisional application filed on August 1, 2013 with application number 61 / 861,378. The entire content of the aforementioned application is incorporated herein. Technical field [0003] The present invention relates to Secure Digital Input Output (SDIO), and in particular, the present invention relates to SDIO devices, systems, and related control methods, so as to put the SDIO device in a sleep mode and restore the SDIO device from sleep mode. Mode wake up. Background technique [0004] SDIO is an interface standard extended from the Secure Digital (SD) standard. It can be used not only in storage devices such as flash memory cards, but also in connection with Wi-Fi wireless network cards and global positioning systems. (Global Positioning System, GPS) receivers and Bluetooth adapters and other peripheral devices (peripheral devices). Generally, the SDIO card combine...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F1/32G06F9/48
CPCG06F1/3278G06F1/3206G06F21/82G06F1/266G06F1/3275Y02D10/00
Inventor 吴智斌
Owner MEDIATEK INC
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