Abstract: The disclosure describes novel methods and apparatuses for accessing test compression architectures (TCA) in a device using either a parallel or serial access technique. The serial access technique may be controlled by a device tester or by a JTAG controller. Further the disclosure provides an approach to access the TCA of a device when the device exists in a daisy-chain arrangement with other devices, such as in a customer's system. Additional embodiments are also provided and described in the disclosure.
Abstract: A method and apparatus for base-lining a calculator, wherein said base-lining configures a calculator to a known configuration. The method includes connecting a calculator to a calculator network, determining the configuration desired for a calculator, and base-lining a calculator, wherein said calculator is configured according to the determined configuration desired.