Patent 7949919 was granted and assigned to Realtek on May, 2011 by the United States Patent and Trademark Office.
The present invention provides a microelectronic device with a circuit core and a boundary scan test interface sharing a number of pre-selected pins. In the mode of a boundary scan test, the boundary scan test interface manipulates the input and output of the test signal through the shared pins. Pins necessary for the microelectronic device are therefore reduced.