Ethernet interface module

An interface module, Ethernet technology, applied in the field of Ethernet network, can solve the problem of high cost of Ethernet and achieve the effect of low cost

Active Publication Date: 2017-08-29
英诺瓦西克股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] Even the large amount of hardware and software implemented by Ethernet simple devices makes Ethernet cost-prohibitive for certain classes of applications

Method used

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  • Ethernet interface module
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Embodiment Construction

[0112] Ethernet physical transceivers are often referred to as physical layer transmitters and / or receivers, physical layer transceivers, PHY transceivers, PHY receivers, or simply PHYs. PHYs are usually found on Ethernet devices. Its purpose is to provide physical access to analog signals for Ethernet links. The PHY chip implements the hardware sending and receiving functions of Ethernet frames. Line modulation on one end of the PHY interface and binary packet signaling on the other. The PHY is usually used in conjunction with a second chip or interfaces with a microcontroller that handles the higher layer Media Access Control or MAC functions. Section 4.1.4 of IEEE 802.3-2002 lists the functions required by the MAC.

[0113] As used herein, PHY and MAC refer to blocks that provide PHY and MAC functions, respectively.

[0114] Various embodiments of the Ethernet interface module described below include a PHY and MAC, but do not include or require packet memory, protocol e...

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Abstract

An Ethernet interface module comprises a duplex port operable to transfer frames between said Ethernet network and a device and a path coupling a receive portion of the duplex port to a transmit portion of said first full duplex port. A queue is disposed in said first path. Evaluation apparatus is coupled to the queue and determines whether a received frame is addressed to said Ethernet interface module and whether a frame type field contains a frame type. The Ethernet interface module is operable in a first mode such that every said received frame is echoed back out the full duplex port; and is operable in a second mode such that each received frame that meets predetermined evaluation criteria is echoed back out the duplex port and those received frames that do not meet the predetermined evaluation criteria are discarded.

Description

technical field [0001] The present invention generally relates to Ethernet networks, and in particular to Ethernet interface modules. Background technique [0002] Ethernet is already used in a wide range of product families. However, Ethernet requires a considerable amount of hardware and software to implement even simple devices. [0003] A typical Ethernet device, even one with very simple functions, requires the following components in addition to providing Ethernet communication (in addition to the actual function of the device): [0004] 1. Ethernet physical access layer (PHY) and related magnetic components, connectors and other hardware. [0005] 2. Ethernet Media Access Control (MAC), which is used to transfer data packets in digital form between the device and the PHY. [0006] 3. A packet memory to store received packets as they are evaluated and consumed, and to store output packets for transmission. [0007] 4. Microprocessor and software for evaluating a ra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/26
CPCH04L12/10H04L25/0264H04B3/20H04L5/14H04L9/3236H04L9/32H04L49/25H04L49/351
Inventor A·D·阿尔苏普
Owner 英诺瓦西克股份有限公司
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