Patent ID: 11867756
Assignee: TEXAS INSTRUMENTS INCORPORATED
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 15:
16. A device comprising:
a functional circuit;
an addressable test access port selection circuit including an address register configurable to store an address signal to enable test access;
a first input/output terminal configurable as an input or an output and coupled to the addressable test access port selection circuit, wherein the first input/output terminal is configurable to input the address signal serially;
a trace circuit coupled to the functional circuit;
a second plurality of input/output terminals, wherein each terminal of the second plurality of input/output terminals is configurable as an input or an output and coupled to the trace circuit;
a third plurality of input/output terminals, wherein each terminal of the third plurality of input/output terminals is configurable as an input or an output and coupled to the functional circuit;
a fourth input/output terminal configurable to output a return clock to be used for synchronization with an external controller;
a fifth input/output terminal configurable as an input or an output and coupled to the trace circuit; and
a sixth input/output terminal configurable as an input or an output and coupled to the trace circuit.