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System and method for power saving modes in high speed serial interface communication systems by utilizing selective byte synchronization

A technology of serial communication and byte synchronization, applied in the direction of transmission system, wireless communication, synchronization device, etc., can solve the problems of large electric power and so on

Active Publication Date: 2013-08-21
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

One of the problems is that constantly searching for comma numbers uses a lot of power

Method used

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  • System and method for power saving modes in high speed serial interface communication systems by utilizing selective byte synchronization
  • System and method for power saving modes in high speed serial interface communication systems by utilizing selective byte synchronization
  • System and method for power saving modes in high speed serial interface communication systems by utilizing selective byte synchronization

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Embodiment Construction

[0028] The present invention is described more fully hereinafter with reference to the accompanying drawings, in which embodiments of the invention are shown. However, this invention may be embodied in many different forms and should not be construed as limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the drawings, the size and relative sizes of layers and regions may be exaggerated for clarity. Like reference numerals refer to like elements throughout the drawings. Rather, the scope of the invention is defined by the appended claims.

[0029] Exemplary embodiments described herein relate to byte synchronization techniques associated with interconnect devices or interfaces. As mentioned above, conventional comma-encoded byte synchronization techniques have certain disadvantages. In particular, one problem...

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Abstract

A system and method for minimizing power consumption in a transceiver circuit (500) are provided. The circuit uses a digital high-speed serial communications link between at least two devices. Comma code matching is generally used as a means for establishing byte synchronization and for determining and preventing data transfer errors. However, comma code matching, when performed in high speed serial communications links that can transfer data at rate of thousands of megabit per second, can use a significant amount of power. Thus, the system and method described herein maintain comma code matching in an off-state, and transform comma code matching from an off-state to an on-state when a substantive operational change occurs in the serial communications link.

Description

technical field [0001] The present invention relates generally to digital circuits, and more particularly to systems and methods for saving power in high speed serial interface circuits. Background technique [0002] Electronic devices such as mobile phones, personal computers, personal digital assistants, and many others use processors, memory, input / output (I / O), and other digital devices to provide the functionality for which they were designed to the end user. These various digital devices are connected to each other using an interconnect (sometimes called a "bus" or "interface") that transfers data, signals, and instructions between the various devices. [0003] With the development of complementary metal-oxide-semiconductor (CMOS) technology, there has been a trend from parallel interfaces to high-speed serial interfaces. There are two reasons for this. First, there is less physical packaging space on a multi-pin chip. As time progresses, integrated circuit devices,...

Claims

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Application Information

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IPC IPC(8): H04L7/04H04B1/16H04W52/02
CPCH04L7/042H04L7/00H04L65/00G06F1/3234
Inventor 安德烈·拉杜莱斯库
Owner TELEFON AB LM ERICSSON (PUBL)
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