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High speed interchip universal serial bus monitoring

By introducing the USB controller, HSIC PHY transceiver, UTMI+ conversion block and ULPI PHY transceiver into the HSIC system, the problem of unstable HSIC signaling is solved, robust monitoring and analysis of HSIC signals is achieved, and the effectiveness of HSIC products is supported. Development and validation.

Active Publication Date: 2013-07-10
ST ERICSSON SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These reflections will introduce distortion in the HSIC signal sent between the HSIC PHY 16 and the HSIC host 18
[0024] The inability to test and debug HSIC communications has been found to be a major problem in HSIC product development and means that further development and validation of HSIC products is virtually impossible

Method used

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Examples

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Embodiment Construction

[0065] The inventive concept will be described more fully hereinafter with reference to the accompanying drawings, in which embodiments of the inventive concept are shown. In the drawings, the size and relative sizes of layers and regions may be exaggerated for clarity. Like numbers refer to like elements throughout. However, this inventive concept may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Accordingly, the scope of the invention is defined by the appended claims.

[0066] Several acronyms are used throughout this specification and their meanings are provided as follows: Universal Serial Bus (USB); High Speed ​​Inter-Chip (HSIC); Consumer Electronics (CE); Personal Computer (PC); System-on-Chip (SoC); USB Transceiver Macrocell Interface (UTMI+); UTMI+ Low Pin Count Interface (ULPI); Physical Layer / Interface (PHY); and Printed Circuit Board (PCB).

[0067] In some cases, the exemplary embodiments discus...

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Abstract

Disclosed herein is a system for monitoring high speed interchip (HSIC) universal serial bus (USB) signals in a device comprising a USB controller (2) configured to output first USB transceiver macro-cell (UTMI+) signals, an HSIC PHY transceiver (16) configured to receive the first UTMI+ signals from the USB controller and to convert and transmit the received first UTMI+ signals as first HSIC signals, and is further configured to receive second HSIC signals and transmit them as second UTMI+ signals to the USB controller, a UTMI+ conversion block configured to receive the first and second UTMI+ signals and to transform the received first and second UTMI+ signals to corresponding first and second ULPI signals, and transmit the first and second ULPI signals, the first and second ULPI signals being equivalent to the first and second HSIC signals, and a ULPI PHY transceiver (6); configured to receive the first and second ULPI signals and transmit corresponding first and second USB signals.

Description

technical field [0001] The present invention relates generally to digital circuits, and more particularly to systems and methods for monitoring a high speed serial interface, in particular a Universal Serial Bus interface. Background technique [0002] The Universal Serial Bus (USB) specification was originally published in 1996, updated in 1998, and enhanced in 2000 for high-speed data operations. USB originally allowed simple devices such as keyboards, mice, and webcams to be connected to complex hosts such as personal computers (PCs) using cables as long as 15' at signaling speeds of up to 480Mbps. In addition, the connected device can be powered from the host. [0003] USB is the most successful interconnect specification previously developed for consumer electronics (CE), as measured by the number of devices using it. About 10 billion USB devices exist today, and USB is used in most CE products, such as personal computers, audio and video equipment, MP3 players, mass ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F13/42G06F11/34
CPCG06F11/348G06F11/349G06F13/385H04L43/0817
Owner ST ERICSSON SA