Replacing 6550s

From: Doug Spence <ds_spenc_at_alcor.concordia.ca>
Date: Sat Nov 28 16:22:28 1998

Hi Tony!

On Sun, 22 Nov 1998, Tony Duell wrote:

> Link up corresponding pins. You can ignore supply lines other than +5V
> and ground. If the new ram has extra address lines, tie them low. If it
> has extra data lines, then pull them high through a 1K (or 10K, or just
> about anything) resistor.

Please forgive my ignorance, but when you say to 'tie low' or 'pull high',
that means 0V and +5V respectively? Is tying low the same as attaching to
ground?

I want to be able to do this kind of project, but I don't even know the
basics. :/

-- 
Doug Spence
ds_spenc_at_alcor.concordia.ca
http://alcor.concordia.ca/~ds_spenc/
Received on Sat Nov 28 1998 - 16:22:28 GMT

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