Patent ID: 6530051
Filing Date: 2003-03-04
Classification: G11C

Abstract:
A controller for controlling a generator system on a memory chip, the controller operating as a state machine in accordance with a state diagram including a plurality of N states and comprising:a state storage device which is responsive to input signals including a 1-out-of-N code indicating a change in the state diagram from a current state to a next state of the plurality of N states for generating a revised plurality of N state output signals comprising a true State signal and a complementary true State signal for the next state of the plurality of N states for use in generating output signals to the generator system; and state identification circuitry responsive to a selectively applied activation control signal when the controller fails to complete a procedure in the state diagram for inhibiting the output of the revised plurality of N state signals from the state storage device and sequentially reading out the plurality of N state signals comprising the 1-out-of-N code currently stored in the state storage device for determining from the 1-out-of-N code which state of the state diagram the controller is currently in.