80 MHz version of uCDIMM ColdFire 5282

[Eric Norum <norume@aps.anl.gov>]

I have a question to those using the 80 MHz version of the ColdFire  
uCDIMM 5282.  How do you connect this to external logic such as an  
FPGA?  Here's the bus timing section of the data sheet:

Attachment: pastedGraphic.pdf
Description: Adobe PDF document

This implies that external logic must assert TA within 2.5 ns (Time B0  
minus time B1a) of the rising edge of CLKOUT.  WIth the 64 MHz part  
this requirement was 5.625 ns, which wasn't easy to reach, but was  
possible.
Do you do some tricky stuff like use the falling edge of CLKOUT to  
clock the section of the FPGA that drives the ColdFire TA* pin?

--
Eric Norum <norume@aps.anl.gov>
Advanced Photon Source
Argonne National Laboratory
(630) 252-4793