It looks like the syntax for? the Teensy module is different. There is not CE/trigger so as it sees the addresses it outputs the memory locations to the data bus continously.
He calls out where the array is in the Teensy but doesnt say how to load it to there. i guess you know that much if you are a Teensy guy....hmmm....not a T-shirt I'd want to wear around town,
Apparently the single line reads the pin,? ANDs and Shifts L or R that address bit value, concatenate all the results, then AND that value to identify alocation in the uC's memory map where the arrary is located. Seems like a lot of extra math.
He set 3 int32 regs to do this...for a 16 bit address...........I dunno