Patent ID: 7783948
Filing Date: 2010-08-24
Classification: G01R

Abstract:
1. TAP removal and replacement circuitry comprising: A. a test data input lead; B. a test data output lead; C. a test clock input lead; D. a test mode select input lead; E. TAP domain selection circuitry having inputs coupled to the test data input lead, the test clock input lead, and the test mode select lead, having a remove select input, and having a test data output, a remove control output, and a control output bus; and F. multiplexer control circuitry having an input connected to the test mode select input lead, a remove control input connected to the remove control output of the TAP domain selection circuitry, control inputs connected with the control output bus, and a remove select output connected to the remove select input of the TAP domain selection circuitry.