1 - Additional cores. ARM9E(J)-S, ARM7TDMI-S, TI925, ...
3 - Additional jtag interfaces. Currently, only Wiggler style interfaces and
4 USBJTAG-1 are supported.
6 - Handle endianess. The configuration variable is there, but that's about it.
7 Currently, only little-endian targets and little-endian hosts are supported.