Patent ID: 9596091
Date: 2017-03-14
CPC Classifications: G08C,H04L,H04Q

Claim:
1. A method of obtaining inputs from a plurality of sensor coupling ports, comprising the steps of: from a first processing unit, communicating a state change on a first common addressing signal coupled to each of a plurality of second processing units and uniquely addressing one of the plurality of second processing units on at least one additional addressing signal; communicating from the first processing unit to each of the plurality of second processing units a subsequent state change on a common enable signal line coupled to each of the plurality of second processing units; detecting the state change on the first common addressing signal, the unique addressing, and the subsequent state change on the common enable signal line in one of the plurality of second processing units; and communicating from the first processing unit to the one uniquely addressed second processing unit to receive an input to the first processing unit from the sensor coupling port.