1. A single-chip 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; 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 locations within the memory; control circuitry configured to generate control signals to control operation of the laser transmitter in accordance with one or more values stored in the memory; an interface for reading from and writing to locations within the memory; and comparison logic for comparing the digital values with limit values, generating flag values based on the limit values, and storing the flag values in predefined locations within the memory.