Patent ID: 7184668
Filing Date: 2007-02-27
Classification: G01M,H04B

Abstract:
1. An integrated circuit for controlling an optoelectronic transceiver having a laser transmitter and a photodiode receiver, comprising: memory, including one or more memory arrays for storing information related to the transceiver in predefined memory mapped locations of the memory, the stored information including digital values corresponding to current operating conditions of the optoelectronic transceiver, where said digital values include a temperature of said optoelectronic transceiver, an internal supply voltage of said optoelectronic transceiver, a laser bias current of said laser transmitter, an output power of said laser transmitter, and a received optical power of said photodiode receiver; analog to digital conversion circuitry for receiving at least one analog signal, the at least one analog signal corresponding to operating conditions of the optoelectronic transceiver, converting the at least one analog signal into at least one digital value, and storing the at least one digital value in at least one of said predefined memory mapped locations in the memory; an interface configured to enable a host to read from host-specified locations within the memory, including said predefined memory mapped locations of the memory, so as to obtain one or more of said digital values corresponding to current operating conditions of the optoelectronic transceiver; comparison logic configured to compare the at least one digital value with a limit value to generate a flag value; and operation disable circuitry configured to disable operation of at least part of the optoelectronic transceiver in response to a signal, wherein the signal is based on said flag value.