发明名称 |
Apparatus and method for full-duplex ethernet communications |
摘要 |
A downward compatible full-duplex 10Base-T ethernet transceiver associated with both the hub or the remote node in an ethernet network includes generator circuitry for generating a full-duplex-capability signal indicating its full-duplex capability for transmission over the twisted pair link and detector circuitry for detecting transmission of such a signal from the transceiver with which it is communicating across the twisted pair link. The detector circuitry responds to the full-duplex-capability signal by sending a full-duplex enable signal to an ethernet controller configured according to the present invention. An ethernet controller contains circuitry responsive to the full-duplex-enable signal to disable transmission deferral in response to a carrier-sense signal generated by the transceiver. The full-duplex-capability indicator portion may comprise an extra pulse following an Nth link-integrity pulse after a delay of between about 2-7 mu sec.
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申请公布号 |
US5504738(A) |
申请公布日期 |
1996.04.02 |
申请号 |
US19940227851 |
申请日期 |
1994.04.15 |
申请人 |
SEEQ TECHNOLOGY INC. |
发明人 |
SAMBAMURTHY, NAMAKKAL S.;LAI, WOO-PING;VANGILDER, JOHN P. |
分类号 |
H04L12/413;H04L12/44;(IPC1-7):H04L29/08 |
主分类号 |
H04L12/413 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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