15 Feb
2010
15 Feb
'10
9:24 p.m.
On Feb 15, 2010, at 2:41 PM, Tony Duell wrote:
Not terribly, but SPI is dead simple, even if you have to bit-bang
it. It doesn't take much to be more complex than SPI.
-Dave
--
Dave McGuire
Port Charlotte, FL
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?