Indeed, though depending on the vendor, support for one of the modes may be marginal. I remember evaluating the Raza (now Broadcom) XLR processor when it first came out. Was told it supported little endian, which we needed. Tried to configure the eval unit in little endian mode -- dead as a doornail. Asked the rep. Answer: "well, the *hardware* is designed to support it, but the power on boot configuration code is big endian only". Oh. Ended up spending a month or two converting fun stuff like DDR timing tuning loops to little endian. It did eventually work, but no thanks to the people selling the device... paul