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BillGiovino
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Iron
Re: Feb 21 - Day 4 - Selecting a 16-bit Microcontroller
BillGiovino   2/21/2013 3:24:41 PM
NO RATINGS
I did  a Z80 ap 20 years ago that used the "second register set" and the NMI to do a software UART - the NMI pin was tied to a spare timer output. It used about 25% of the processor and saved adding an interface chip.

Now that is interesting. Always glad to hear a Z80 story.




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