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Systems, devices and methods for time division multiplexed communications

A communication system and time-division multiplexing technology, which is applied in time-division multiplexing systems, multiplexing communication, transmission systems, etc., can solve the problems of increasing the cost and complexity of devices

Active Publication Date: 2016-12-28
INVENSENSE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The ability of each device to function as a master or a slave increases the cost and complexity of each device, inter alia

Method used

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  • Systems, devices and methods for time division multiplexed communications
  • Systems, devices and methods for time division multiplexed communications
  • Systems, devices and methods for time division multiplexed communications

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Embodiment Construction

[0048] In an embodiment of the present invention, the simplified bus arrangement using only three signal lines allows the controller to TDM data is sent to and / or received from a number of slave-only devices. The controller is configured to provide a bit clock signal SCK and a frame synchronization signal WS marking the start of each frame. passing the SCK signal to all slaves while passing the WS signal to the first device in the chain and daisy-chaining it from slave to slave, each slave The device adds a predetermined amount of delay to the WS signal. Based on the SCK signal and the daisy chain progressive WS signal, each slave device can automatically determine its corresponding time slot without any dedicated signaling from the master device. Embodiments of the present invention allow, inter alia, the removal or omission of the command lines, but also in particular the removal or omission of the master logic (and the M / S pin) from the slave, thus saving space for both t...

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Abstract

A simplified bus arrangement using only three signal lines allows TDM data to be conveyed to or from a number of slave -only devices without the use of separate command line(s) and without any of the slave-only devices having to operate as a bus master or even support a master operating mode.

Description

[0001] Cross References to Related Applications [0002] This patent application claims priority to U.S. Patent Application No. 13 / 071836, filed March 25, 2011, and U.S. Provisional Patent Application No. 61 / 467,538, filed March 25, 2011, which are hereby incorporated by reference Each of these is incorporated herein in its entirety. technical field [0003] The present invention generally relates to synchronization, resynchronization, addressing and serialization signal processing of daisy chain connected communication devices. Background technique [0004] In some communication systems, multiple devices send data to a controller over a communication channel (single-wire bus) that is logically divided into a number of consecutive time slots, where each time slot has a predetermined number of bits. Each device transmits data to the controller in one or more designated time slots according to a time slot allocation scheme, which is fixed in some communication systems and var...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04J3/04H04J3/16G06F13/37H04L12/417
CPCH04J3/0685G06F13/372H04J3/04
Inventor 潘扬O·M·乔瑟夫森严东勤C·L·C·J·辉恩
Owner INVENSENSE