Touch host controller

An electronic device, comprising:

• a virtual touch circuit configured to transmit testing data, wherein the testing data represents sensory input data;
• a touch host controller configured to process sensory data inputs, including the testing data, wherein the processed testing data has a first signature representative of the processed testing data;
• a validation circuit configured to compare the first signature with a second signature to determine whether the touch host controller is faulty, wherein the second signature is representative of an anticipated result of the touch host controller processing the testing data;
• and
• wherein the touch host controller, virtual touch circuit, and the validation circuit are included in a single die.

A method for testing an electronic device, comprising:

• transmitting testing data from a virtual touch device, wherein the virtual touch device is located on a die;
• processing the testing data with a touch host controller, wherein the touch host controller is located on the die;
• and
• evaluating the performance of the touch host controller with a validation circuit using the processed testing data, wherein the validation circuit is located on the die.