[Coco] FPGA 6809

Bill Nobel b_nobel at hotmail.com
Mon Aug 31 19:46:35 EDT 2015


Would that be the fitter pins in the pin planner?  I saw those there and I thought it was a suggested pin.

Bill Nobel

> On Aug 31, 2015, at 4:30 PM, Dave Philipsen <dave at davebiz.com> wrote:
> 
> Just something else I thought of:  When starting a project out from scratch (i.e. CoCo3 or 6809 core on FPGA) there are some things to take into consideration when assigning pins to devices.  The Altera FPGAs are divided into physical banks and Altera suggests that the high speed signals such as address or data lines be grouped together within a bank or adjacent banks if at all possible.  Also, at least on some devices, there are certain banks that they consider more well suited for high speed stuff.  If you do a little research on the 'net you'll find some notes on this in the design considerations.
> 
> Dave Philipsen
> 
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