[System09] XCell Article on using CPLDs for game consoles

[John Kent]

Actually I rearranged the 6850 ACIA to use separate clock inputs for 
RxClk, TxClk and the system Clk and it does fit in a XC95108 PLCC84.

John.

John Kent wrote:
> I saw this article on Clive "Max" Maxfield's Programmable Logic Design Line.
>
> http://www.pldesignline.com/showArticle.jhtml?articleID=210800474&cid=NL_pldl
> http://www.xilinx.com/publications/xcellonline/xcell_65/xc_pdf/p42-45_65_F_Xperiment.pdf
> http://www.embedded.com/design/210800546?pgno=2
>
> It seems that In Choi from Retro Devices Technology is using a small 
> CPLDs mounted on a 14 pin header to replace standard TTL parts. They've 
> even got a patent for it. You can fit my 6821 in a XC95108. I guess you 
> could go to larger CPLDs for the 6850 ACIA.
>
> John.
>
>   

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