Subject:
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Re: what variety of 6811 can be used?
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Tue, 2 Feb 1999 17:05:18 GMT
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Original-From:
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Nick Taylor <ntaylor@iname.com>
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Viewed:
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1021 times
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Steve - - -
As a HandyBoard *old timer* (I've had mine for almost two months) I've
found that the best source of 68HC11 info is Motorola. Their
documentation
is *free*. Here are 3 manuals that are a must:
M68HC11RM/AD Reference Manual
MC68HC11A8/D Technical Manual
MC68HC11A8RG/AD Programming Reference Guide
All three are available at:
http://www.mot-sps.com/home/lit_ord.html
- - - Nick - - -
Steve Owens wrote:
>
> Dear Handy Board Enthusiasts:
>
> I'm new to the Handy Board (stumbled over it about two weeks ago). I
> understand that there are many types of 68HC11 chips--e.g., 68HC11A1FN,
> 68HC11A8, 68HC11 E series, and so on.
>
> I know that the 'A1FN is used in the design, but can others be
> substituted with minimal or no extra effort? If so, then which chips in
> particular can be substituted. I'm interested in using the 68HC11E1
> because of its 512 bytes of RAM.
>
> By the way, what does the "FN" in "68HC11A1FN" signify?
>
> Thank-you for thinking back to your "development" days and answering a
> couple of basic questions.
>
> Steve
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Message has 1 Reply:
 | | Re: what variety of 6811 can be used?
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| (...) why does the 512 bytes matter? the HB has 32K of external ram. i guess if you're planning to do rom-able code development then i understand. there's very little difference between the e and a series. the port A counter/timer pins are slightly (...) (26 years ago, 2-Feb-99, to lugnet.robotics.handyboard)
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Message is in Reply To:
| | what variety of 6811 can be used?
|
| Dear Handy Board Enthusiasts: I'm new to the Handy Board (stumbled over it about two weeks ago). I understand that there are many types of 68HC11 chips--e.g., 68HC11A1FN, 68HC11A8, 68HC11 E series, and so on. I know that the 'A1FN is used in the (...) (26 years ago, 2-Feb-99, to lugnet.robotics.handyboard)
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