TheOne
No, they are not.
The USB SPI is for xbox only, because of the software it supports.
The TUMPA can be used for JTAG/Serial/I2C, e.g debricking routers, flash cable modems, ARM JTAG etc, but due to software limitations, it cannot be used for xbox jtag at this moment. However you can use it to program RGH.
thanks