CAD CAM EDM DRO - Yahoo Group Archive

Re:Us Digital ls7266 chip help if you can please

Posted by ghidera2000
on 2003-07-07 18:45:35 UTC
Its quite common to parallel lines on any busses that use a chip
select pin. No chip will "listen" to whats on those lines unless its
chip select pin is active.

Just make sure you read the specs carefully. CS lines are typically
active LOW, not high. Also be carefull of activating more than one
chip at a time, you could draw too much current on the data lines
and burn out your source pin (MCU or parallel port, whatever).

--- In CAD_CAM_EDM_DRO@yahoogroups.com, Alan Rothenbush <beer@s...>
wrote:
>
> Yes, you can "parallel" all but the Chip Select lines.
>
> Alan
>
> > I'm working on a design that incorporates 2 of these chips.
> >
> > Ok, if I understand the docs .. I can put the d0-d7 lines on a
common
> > bus and use separate CS lines to access one chip or the other.
> >
> > Can I do likewise with the other common lines .. C/D, RW, RD and
X/Y
> > and perhaps FCK?
> >
> > Thankyou So Much for ANY help you can give me
> >
>
> --
>
> Alan Rothenbush | The Spartans do not ask the number
of the
> Academic Computing Services | enemy, only where they are.
> Simon Fraser University |
> Burnaby, B.C., Canada | Agix of
Sparta

Discussion Thread

Will Bow 2003-07-04 23:11:39 UTC Us Digital ls7266 chip help if you can please Alan Rothenbush 2003-07-07 09:02:05 UTC Re:Us Digital ls7266 chip help if you can please ghidera2000 2003-07-07 18:45:35 UTC Re:Us Digital ls7266 chip help if you can please kooloosj 2003-07-14 21:56:56 UTC Re: Us Digital ls7266 chip help if you can please bazer_20002000 2003-07-15 08:00:12 UTC Re: Us Digital ls7266 chip help if you can please