Patent ID: 8327203

Claim:
A process of operating a state machine comprising: A. enabling operation of the state machine upon receiving an enabling signal indicating a change from operation of a test access port to a scan test port; B. maintaining the state machine in an IDLE 1 state while receiving a scan test port capture signal on a test mode select/capture select lead; C. transitioning the state machine from the IDLE 1 state to an IDLE 2 state when receiving a scan test port shift signal on the test mode select/capture select lead; D. transitioning the state machine from the IDLE 2 state to a SEQUENCE 1 state when receiving a scan test port capture signal on the test mode select/capture select lead; E. transitioning the state machine from the SEQUENCE 1 state to a SEQUENCE 2 state when receiving a scan test port capture signal on the test mode select/capture select lead; and F. transitioning the state machine from the SEQUENCE 2 state to the IDLE 2 state when receiving a scan test port shift signal on the test mode select/capture select lead.