Support for AVR xMega JTAG?

Hi

Been searching but can’t find any documentation or reference to it.

Is there any specific reason/limitation for the lack of support of xMega devices (i.e.: ATxmega256A3BU) over JTAG?

Seems long time ago USBPROG 5.0 (that now seems gone) used to support xMega devices but just over PDI

not over JTAG.