摘要:
An operational optical transceiver microcontroller configured to initiate a self-test using internalized loop backs. The microcontroller includes a memory, at least one processor and a number of input and output terminals. The output terminals are coupled to internally corresponding input terminals by a configurable switch. The memory receives microcode that, when executed by the processor, causes the microcontroller to close the switches so as to internally connect the output and input terminals. A signal is then asserted on the output terminal. This signal loops back and is received by the input terminal. The processor may then detect the microcontroller's response to the signal.
摘要:
An operational optical transceiver comprising a receiver, a sensor, a memory, and a processor. The sensor is configured to measure the received power of an optical signal received by the receiver. The received power is sent to the memory where it is read by the processor. The processor is configured by microcode stored in the memory to compare the measured power value with a threshold power value. If the measured power value is below the threshold, then the transceiver will assert an indicator such as a signal indicating this. At a later time, when the measured power level is again above the threshold value, the transceiver will deassert the indicator previously asserted.
摘要:
An operational optical transceiver (or transmitter or receiver) configured to contain a module command interface. The optical transceiver includes at least one processor, a memory location dedicated for high level commands, and a library of microcode that control specific optical transceiver operations. A high level command is written to the memory location dedicated for high level commands. The processor determines that the high level command has been written to the memory location, identifies what the command is, and executes microcode from the microcode library that corresponds to the high level command. The executed microcode causes the optical transceiver to perform the operation directed by the high level command.
摘要:
A method for an optical transceiver (or transmitter or receiver) to change from a first set of functionality to a second set of functionality that is different than the first set of functionality. The optical transceiver has at least one processor and a system memory. The optical transceiver has access to a persistent memory. The persistent memory includes microcode that when loaded into system memory and executed by the processor, causes the optical transceiver to have access to a first set of functionality. In order to implement the method, second microcode in the persistent memory is made accessible to the optical transceiver. The second microcode includes one or more functions in the second set of functionality that are not included in the first set of functionality. Then, the second microcode is loaded in the system memory from the persistent memory and executed to implement the second set of functionality.
摘要:
Microcode driven adjustment of analog scaling of an analog signal prior to being provided to an analog-to-digital converter. The microcode also causes the system to read the resulting digital value, and determine whether the scaling value should be adjusted for that analog signal. Accordingly, the microcode may cause the analog signal to be dynamically adjusted to be within the input range of the analog-to-digital converter, thereby allowing for more accurate digital conversions with lower resolution analog-to-digital converters. The microcode rapidly adjusts for any fluctuations in the input voltage. Accordingly, the analog signal may fluctuate, or even be multiplexed from a wide variety of different analog signal sources.
摘要:
Circuitry for monitoring the operation of an optoelectronic transceiver includes a sequence of interconnected signal processing circuits for processing an analog input signal and producing a digital result signal, where the analog signal represents one or more operating conditions of the optoelectronic transceiver. The sequence of signal processing circuits include gain circuitry for amplifying or attenuating the analog input signal by a gain value to produce a scaled analog signal, an analog to digital converter for converting the scaled analog signal into a first digital signal, and digital adjustment circuitry for digitally adjusting the first digital signal to produce the digital result signal. The digital adjustment circuitry includes shifting circuitry configured to shift an input digital signal in accordance with a shift value so as to produce a digital shifted signal. The digital result signal is stored in memory in predefined locations accessible by a host.
摘要:
An optical transceiver (or optical transmitter or optical receiver) that has at least one processor and a memory. The optical transceiver receives encrypted microcode from a source. The optical transceiver may then decrypt the received microcode to create decrypted microcode. The decrypted microcode is then written to the memory, where it may be executed by the at least one processor. The microcode, when executed by the at least one processor, controls one or more functions of the optical transceiver.
摘要:
An optical transceiver that custom logs information based on input from a host computing system (hereinafter referred to as a “host”). The optical transceiver receives input from the host concerning which operational information to log; the operational information may include statistical data about system operation, or measured parameters, or any other measurable system characteristic. The input from the host may also specify one or more storage locations corresponding to the identified operational information. If one or more storage locations are specified, the optical transceiver logs the information to the corresponding storage locations, which may be an on-transceiver persistent memory, the memory of the host or any other accessible logging location. Additionally, the input from the host may specify one or more actions to be performed when the identified information is logged. If one or more actions are specified, the optical transceiver performs the specified actions when the information is logged.
摘要:
A method for changing the host communication interface address for a number of individual optical transceivers sharing a single host communication interface. An optical transceiver host computing system is communicatively coupled to the transceivers using the single host communication interface. The host computing system implements the host interface address change by indicating to a first transceiver that an address change is pending. The host then informs the first transceiver that it is to have its address changed using a mechanism independent of the addressing mechanism used by the signal host communication interface. In response, the first transceiver makes the address change. The other optical transceivers may have their address changed using the same method, although this is not required.
摘要:
A method for dynamically updating an optical transceiver (or optical transmitter or optical receiver) that has at least one processor and persistent memory that includes one or more write-protected memory locations. The write-protected memory locations of the persistent memory includes loader microcode that, when executed by the at least one processor, causes the optical transceiver to have access to a first set of functionality. In order to implement the invention, the optical transceiver first processes received microcode. Then, the processed representation of the received microcode is written to the persistent memory outside of the one or more write-protected memory locations. The optical transceiver then determines that all of the microcode that is to be written, to the persistent memory during the update has been written to the persistent memory. Finally, the persistent memory is altered to reflect that the update is complete.