Comment Re:Too good to be true? (Score 1) 196
For accessing sequential data, serial interfaces do pretty well. You send an address once, and just keep on clocking out (or in) high speed serial data and the flash controller in the card increments the address automagically.
The problem comes with XIF implementations that are highly random, and change access addresses often. That is not fast on a serial flash where address setups take a long time.