Dual rate transceiver

摘要

A dual rate transceiver may be provided. First, a host data speed of a host device may be detected. Then a last know data speed of a transceiver may be determined. Next, it may be determined that the host data speed and the last know data speed are different. And in response to determining that the host data speed and the last know data speed are different, the transceiver may be reconfigured to operate at the host data speed.

主权项

1. A method comprising:
detecting a host data speed of a host device from a system host transmit data path, wherein detecting the host data speed comprises:
branching out the system host transmit data path over at least one register connected to the system host transmit data path,filtering the output from the at least one register to a low pass filter, anddetecting, by an amplitude detector connected to an output of the low pass filter, the host data speed from the filtered output; determining a last know data speed of a transceiver; determining that the host data speed and the last know data speed are different; and reconfiguring, in response to determining that the host data speed and the last know data speed are different, the transceiver to operate at the host data speed.