Is there any way to use the JTAG pins of an EPM7128S for user I/O, without permanently commiting them as I/O and thereby losing the JTAG capability? I want to download data from the PC, via a ByteBlaster cable, into a 2kx8 static RAM connected to the CPLD. I suppose I could add some jumpers for re-patching the 10-way header to standard I/O pins; or have a second, dedicated header for the RAM download; but I would prefer to use the JTAG pins if possible.
TIA