Auto-negotiation for multiple ports using shared logic

Details Auto-negotiation for multiple ports using shared logic Auto-negotiation for multiple ports using shared logic

1999-04-14

2000-09-05

Nguyen, Chau

Multiplex communications

Channel assignment techniques

Combining or distributing information via time channels...

370445, 370465, H04B 7212, H04L 1243

Patent

active

061153893

ABSTRACT:
A data communication device having multiple ports is provided with an auto-negotiation system for performing auto-negotiation with multiple link partners connected to the ports. The auto-negotiation system has a memory and an auto-negotiation unit including transmit, receive and arbitration state machines for performing transmit, receive and arbitration state diagrams compliant with the IEEE 802.3 Standard. The auto-negotiation unit operates in a time-division multiplexing mode using successive time slots for supporting auto-negotiation operations for different ports. The memory is used for storing state diagram variables for a port in a time interval between the time slots assigned to that port.

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