George Dalekos

MPC83xx SPI sustained throughput

Discussion created by George Dalekos on Dec 15, 2010
Latest reply on Dec 16, 2010 by George Dalekos

We are trying to use the SPI peripherial in Master mode to do data transfers of several Kilobytes at SPI clk rate of 22Mhz.  Our system clock is 266Mhz (csb).


More specifically, I am trying to get more details on the comment I found on page 19-6 (PDF page 1108) in the MPC8349EA  Reference Manual (MPC8349EARM.pdf, Rev 1).


What is the maximum sustained data rate for this peripheral?

What is a sustained SPI write?  Writing 2 bytes?


Thanks for the help,