US Patent 7353347 Reconfigurable state machine

A reconfigurable state machine is provided. The state machine includes a current state register, for storing a current state, and at least one programmable state entry per state of the state machine. Each programmable entry includes a plurality of external signal inputs, a current state tag, at least one next state condition, and a respective next state output. A next state match circuit compares the current state with the current state tag and compares each of the next state conditions with at least one of the external signal inputs to produce a next state match output.