Abstract: A method for implementing a CAM function using a dual-port RAM. Data is stored in the memory array of the dual-port RAM as decoded “one hot” data words such that each data word is stored in one column, and each data word includes only one logic “1” bit value. Data match operations are then performed by reading a row of memory cells of the memory array in response to a match data word. If the row contains one or more of the logic “1” bit values, then the match data word matches (is equal to) one or more of the decoded “one hot” data words. One input port of the dual-port RAM is configured to automatically write decoded “one hot” data words into the memory array by accessing a selected memory cell in response to an X+Y-bit word. The encoded X+Y-bit word is transmitted to an address terminal of the first input port, and a logic “1” bit value is transmitted to a data input terminal of the first data port.