For [Dmitry], the best course of action was emulating an ARM processor on an AVR. We’re not sure if we’re dealing with genius or madness here, but it did prove to be a valuable learning ...

It features 128KBytes of onboard SRAM, where 64KBytes of the SRAM are directly coupled to the 32-bit AVR CPU for increased performance optimization, and two blocks of 32kB SRAM on the high-speed bus.