I was thinking of trying to design and build a circuit board with an
Xscale processor on it.  I am under the impression that there is some
kind of standard 20-pin JTAG connector often used with ARM CPUs that I
ought to use to be able to plug one of these expensive JTAG debugger
interface doodads directly into my board.  I have seen pictures of
such connectors -- it looks like a sort of rectangle about one inch
long with two rows of 20 pins at 0.1-inch intervals.  I imagine that I
would like something that I can solder straight onto the board with
the cable plugging in vertically, rather than something where the
cable plugs in at a right angle, if that makes sense.  I already know
what signals each of the 20 pins are supposed to carry, because the
pinout comes up every time I do any kind of web search for this thing,
but nobody ever seems to actually explain exactly what kind of
connector it is.

I would like one or more manufacturer's part numbers for parts that
meet the above description.  Just the name of the manufacturer and the
part number would be fine.

If you want to throw in a link to some kind of evidence that the part
number(s) in question is (are) in fact suitable, or a link to a data
sheet for the part(s), maybe even a very brief description of the pros
and cons of three or four different suitable parts if it turns out
that there are lots of different kinds to choose from, or any other
kind of information or advice about any of this, that would be nice,
of course, but I don't expect that.