Jonathan McClain

MCF52259/MCF52256 FB_CLK pin

Discussion created by Jonathan McClain on Mar 18, 2009
Latest reply on Jan 13, 2010 by Michael Neher

Hello everyone.

I am wiring up an external dual-port RAM to the mini-FlexBus on the MCF52256, but I'm havuing trouble figuring out where the FB_CLK woul be on the 144 pin LQFP package.  Although its described in the text of the Flexbus secton, its not shown anywhere on the pin assigment.  Can anyone shed some light on this?  Its mentioned in the text, but then not shown in the pin tables.  I don't even see the CLKOUT pin.  I had the same trouble sorting out some of the BDM/JTAG pins, so I figure this output clock pin is a dual-labled pin not shown completetly?.....


Thanks much.