been received control passes from the block 352 to a block 380 at the block 380 the oa amp m processor 108 determines if the command is for the microcontroller 106 of the anf module 100 or if the command is for the oa amp m processor 108 if the command is for the microcontroller 106 control passes from the block 380 to a block 382 which sends the command to the microcontroller 106 after the execution of the block 382 the main routine 340 ends alternatively if the command received by the oa amp m processor 108 is not a command for the microcontroller 106 control passes from the block 380 to a block 384 which prepares a response to the command responses may include simple acknowledgments or may include responses including substantive data that was requested further detail on the block 384 is provided in conjunction with fig1 after the block 384 has prepared a response a block 386 activates the serial interrupt of the oa amp m processor 108 and ends execution of the main routine 340 alternatively if the block 352 determines that a command was not received control passes from the block 352 to a.