Sorry about the new thread and line spacing.


PXA255 JTAG is not 5V tolerant.  The Intel datasheet indicates VCCCQ+0.3 or 4V max.

This looks clamped to me.  The spec also indicates max input current of  5mA so if

You have a series resistor to limit the current, you may be ok.  The circuit which uses

a 74HC244 should operate from 2V - 6V so those concerned with 5V toterance should

just power it from 3.3V.