Integrated circuit structural element; has externally accessible signal line at capsule containing integrated circuit chip connected to signal line with operating mode selective signal production circuit for operating mode control signal

摘要

The integrated circuit chip (410) has an operating mode selective signal production circuit (34), to receive an operating mode control signal (PSECON) and an internal signal (PXRC). It is connected to an external accessible signal line (31), and generates an output signal based on the operating mode control signal in reaction to the internal signal or an external signal (DQM), which is applied at the external signal line.