Integrated memory mapped controller circuit for fiber optics transceiver

A single-chip integrated circuit for monitoring an optoelectronic device, comprising:

• memory, including one or more memory arrays for storing information related to the optoelectronic device;
• analog to digital conversion circuitry for receiving a plurality of analog signals from the optoelectronic device, the analog signals corresponding to operating conditions of the optoelectronic device, converting the received analog signal into digital values, and storing the digital values in predefined locations within the memory;
• a memory interface for allowing a host to read directly from and write directly to locations within the memory in accordance with commands received from a host device;
• a power supply voltage sensor coupled to the analog to digital conversion circuitry, the power supply voltage sensor generating a power level signal corresponding to a power supply voltage level of the optoelectronic device, wherein the analog to digital conversion circuitry is configured to convert the power level signal into a digital power level value and to store the digital power level value in a predefined power level location within the memory;
• and
• comparison logic for comparing the digital power level value with a power level limit value, generating a power level flag value based on the comparison of the digital power level signal with the power level limit value, and storing the power level flag value in a predefined power level flag location within the memory.

A single-chip integrated circuit for controlling an optoelectronic transceiver having a laser transmitter and a photodiode receiver, comprising:

• analog to digital conversion circuitry for receiving a plurality of analog signals from the laser transmitter and photodiode receiver, converting the received analog signals into digital values, and storing the digital values in predefined memory mapped locations within the integrated circuit;
• comparison logic for comparing the digital values with limit values to generate flag values, wherein the flag values are stored in predefined memory mapped locations within the integrated circuit during operation of the optoelectronic transceiver;
• control circuitry configured to generate control signals to control operation of the laser transmitter in accordance with one or more values stored in the integrated circuit;
• and
• a memory mapped interface for allowing a host to read directly from and write directly to locations within the integrated circuit and for accessing memory mapped locations within the integrated circuit for controlling operation of the control circuitry.

A method of controlling an optoelectronic transceiver having a laser transmitter and a photodiode receiver, comprising:

• in accordance with instructions received from a host device, enabling the host device to read directly from and write directly to locations within a memory;
• and
• receiving a plurality of analog signals from the laser transmitter and photodiode receiver, converting the received analog signals into digital values, and storing the digital values in predefined locations within the memory;
• comparing the digital values with limit values to generate flag values, and storing the flag values in predefined locations within the memory during operation of the optoelectronic transceiver;
• generating control signals to control operation of the laser transmitter in accordance with one or more values stored in the memory.

A method of monitoring an optoelectronic device, comprising:

• in accordance with instructions received from a host device, enabling the host device to read directly from and write directly to locations within a memory;
• receiving a plurality of analog signals from the optoelectronic device, the analog signals corresponding to operating conditions of the optoelectronic device, converting the received analog signals into digital values, and storing the digital values in predefined locations within the memory;
• generating a power level signal corresponding to a power supply voltage level of the optoelectronic device, converting the power level signal into a digital power level value and storing the digital power level value in a predefined power level location within the memory;
• and
• comparing the digital power level value with a power level limit value, generating a power level flag value based on the comparison of the digital power level signal with the power level limit value, and storing the power level flag value in a predefined power level flag location within the memory;
• wherein the method is performed by a single-chip controller integrated circuit.

A method of controlling an optoelectronic transceiver having a laser transmitter and a photodiode receiver, comprising:

• in accordance with instructions received from a host device, enabling the host device to read directly from and write directly to locations within a controller of the optoelectronic transceiver;
• receiving a plurality of analog signals from the laser transmitter and photodiode receiver, converting the received analog signals into digital values, and storing the digital values in predefined memory mapped locations within the controller;
• comparing the digital values with limit values to generate flag values, and storing the flag values in predefined memory mapped locations within the controller during operation of the optoelectronic transceiver;
• and
• generating control signals to control operation of the laser transmitter in accordance with one or more values stored in the predefined memory mapped locations within the controller.

A single-chip integrated circuit for monitoring an optoelectronic device, comprising:

• memory, including one or more memory arrays for storing information related to the optoelectronic device;
• analog to digital conversion circuitry for receiving a plurality of analog signals from the optoelectronic device, the analog signals corresponding to operating conditions of the optoelectronic device, converting the received analog signal into digital values, and storing the digital values in predefined locations within the memory;
• a memory interface for allowing a host to read directly from and write directly to locations within the memory in accordance with commands received from a host device;
• a temperature sensor coupled to the analog to digital conversion circuitry, the temperature sensor generating a temperature signal corresponding to a temperature of the optoelectronic device, wherein the analog to digital conversion circuitry is configured to convert the temperature signal into a digital temperature value and to store the digital temperature value in a predefined temperature location within the memory;
• and
• comparison logic for comparing the digital temperature value with a temperature limit value, generating a temperature flag value based on the comparison of the digital temperature signal with the temperature limit value, and storing the temperature flag value in a predefined temperature flag location within the memory.

A method of monitoring an optoelectronic device, comprising:

• in accordance with instructions received from a host device, enabling the host device to read directly from and write directly to locations within a memory;
• receiving a plurality of analog signals from the optoelectronic device, the analog signals corresponding to operating conditions of the optoelectronic device, converting the received analog signals into digital values, and storing the digital values in predefined locations within the memory;
• generating a temperature signal corresponding to a temperature of the optoelectronic device, converting the temperature signal into a digital temperature value and storing the digital temperature value in a predefined temperature location within the memory;
• and
• comparing the temperature value with a temperature limit value, generating a temperature flag value based on the comparison of the digital temperature signal with the temperature limit value, and storing the temperature flag value in a predefined temperature flag location within the memory;
• wherein the method is performed by a single-chip controller integrated circuit.

Circuitry for monitoring an optoelectronic device, comprising:

• memory, including one or more memory arrays for storing information related to the optoelectronic device;
• analog to digital conversion circuitry configured to receive a plurality of analog signals from the optoelectronic device, the analog signals corresponding to operating conditions of the optoelectronic device, convert the received analog signals into digital values, and store the digital values in predefined locations within the memory;
• comparison logic configured to compare the digital values to generate flag values, wherein the flag values are stored in predefined flag storage locations within the memory during operation of the optoelectronic device;
• and
• an interface configured to enable a host to read from host-specified locations within the memory, including the predefined flag storage locations, in accordance with commands received from the host.

Circuitry for monitoring an optoelectronic device, comprising:

• memory, including one or more memory arrays for storing information related to the optoelectronic device;
• analog to digital conversion circuitry configured to receive a plurality of analog signals from the optoelectronic device, the analog signals corresponding to operating condition of the optoelectronic device, convert the received analog signals into digital values, and store the digital values in predefined locations within the memory;
• comparison logic configured to compare the digital values with limit values to generate flag values, wherein the flag values are stored in predefined flag storage locations within the memory during operation of the optoelectronic device;
• and
• an interface configured to enable a host to read from host-specified locations within the memory, including the predefined flag storage locations, in accordance with commands received from the host;
• wherein the plurality of analog signals include laser bias current, laser output power, and received power.

A method of monitoring an optoelectronic device, comprising:

• receiving a plurality of analog signals from the optoelectronic device, the analog signals corresponding to operating conditions of the optoelectronic device, converting the received analog signals into digital values, and storing the digital values in predefined locations within a memory;
• comparing the digital values with limit values to generate flag values, and storing the flag values in predefined flag locations within the memory;
• and
• in accordance with instructions received from a host device, enabling the host device to read from host-specified locations within the memory, including the predefined flag locations.

A method of monitoring an optoelectronic device, comprising:

• receiving a plurality of analog signals from the optoelectronic device, the analog signals corresponding to operating conditions of the optoelectronic device, converting the received analog signals into digital values, and storing the digital values in predefined locations within a memory.
• comparing the digital values with limit values to generate flag values, and storing the flag values in predefined flag locations within the memory;
• and
• in accordance with instructions received from a host device, enabling the host device to read from host-specified locations within the memory, including the predefined flag locations;
• wherein the plurality of analog signals includes laser bias current, laser output power, and received power.

Circuitry for monitoring an optoelectronic device, comprising:

• analog to digital conversion circuitry configured to receive a plurality of analog signals from the optoelectronic device, the analog signals corresponding to operating conditions of the optoelectronic device, convert the received analog signals into digital values, and store the digital values in predefined memory-mapped locations within the optoelectronic device;
• comparison logic configured to compare the digital values with limit values to generate flag values, wherein the flag values are stored in predefined memory-mapped flag storage locations within the optoelectronic device during operation of the optoelectronic device;
• and
• an interface configured to enable a host to read from host to read from host-specified memory-mapped locations within the optoelectronic device, including the predefined memory-mapped flag storage locations.

Circuitry for monitoring an optoelectronic device, comprising:

• analog to digital conversion circuitry configured to receive a plurality of analog signals from the optoelectronic device, the analog signals corresponding to operating conditions of the optoelectronic device, convert the received analog signals into digital values, and store the digital values in predefined memory-mapped locations within the optoelectronic device;
• comparison logic configured to compare the digital values with limit values to generate flag values, wherein the flag value are stored in predefined memory-mapped flag storage locations within the optoelectronic device during operation of the optoelectronic device;
• and
• an interface configured to enable a host to read from host-specified memory-mapped locations within the optoelectronic device, including the predefined memory-mapped flag storage locations, in accordance with commands received from the host;
• wherein the plurality of analog signals include laser bias output power, and receive power.

A method of monitoring an optoelectronic device, comprising:

• ‘receiving a plurality of analog signals from the optoelectronic device, the analog signals corresponding to operating conditions of the optoelectronic device, converting the received analog signals into digital values, and storing the digital values in predefined memory-mapped locations within the optoelectronic device;
• comparing the digital values with limit values to generate flag values, and storing the flag values in predefined memory-mapped flag locations within the optoelectronic device;
• and
• in accordance with instructions received from a host device, enabling the host device to read from host-specified memory-mapped locations within the optoelectronic device, including the predefined memory-mapped flag locations.

A method of monitoring an optoelectronic device, comprising;

• receiving a plurality of analog from the optoelectronic device, the analog signals corresponding to operating conditions of the optoelectronic device, converting the received analog signals into digital values, and storing the digital values in predefined memory-mapped locations within the optoelectronic device;
• comparing the digital values with limit values to generate flag values, and storing the flag values in predefined memory-mapped flag locations with the optoelectronic device;
• and
• in accordance with instructions received from a host device, enabling the host device to read from host-specified memory-mapped locations within the optoelectronic device, including the predefined memory-mapped flag locations;
• wherein the plurality of analog signals includes laser bias current, laser output power, and received power.