|The Bitstream shifter is an utility that provides an
interactive interface to the selected TAP, enabling quick state transition
and test vector application / response capturing. As illustrated in figure
1, this utility provides shortcuts to the following test actions:
Fig. 1: Bitstream shifter window displayed by JTAGer.
The Bitstream shifter utility provides an easy way to carry out interactive test control / observation of one or two BS chains. However, if the test experiment is to be repeated or if proper documentation is required, then a better alternative is to build a test code source file and execute it from the main JTAGer window.