But then what? He needed a JTAG programmer to work with the chip. Like any good autodidact he choose to make his own rather than buying one. He absorbed the JTAG specification and coded a bit ...

One may wonder whether the additional IJTAG network architecture is worth the cost of having extra hardware, which would increase the design area, especially when the embedded IPs can be accessed via ...

The third method is to design a method for controlling access to the scan paths on the individual boards from one external JTAG port (Figure 3). A multi-drop gateway device must be inserted on the ...

JTAG interfaces have 5 basic pins ... [Joe] used a Parallax Propeller as the core of his design. He added input protection, selectable voltage (1.2V to 3.3V) and bus pirate compatible headers.