15 Feb
2010
15 Feb
'10
7:41 p.m.
SD and MMC can use what is more-or-less standard
SPI, or a 4-bit-
wide interface that's more difficult to use but much faster.
RIght.
In what way is the 4-bit interface more difficult to use? Is it just that
it takes more I/O pins, or is there something inherently complicated
about it?
-tony