I've only tested with 2 & 4Mhz boards.

Some of the bus signals are tied direct to bus. We spoke about adding line drivers
on these signals in hopes to have it work with faster clock rates.

John had suggested clocking with 7474 instead of the 123's.

On 08/ 1/14 12:34 PM, John Monahan wrote:

Remember guy’s this is for an IMSAI and early S100 boards. It will not work with IEEE-696 boards that for example RAM boards that utilize the full 24 bit address lines.

Also since it’s hard wired with LS123’s it will be bus clock speed sensitive. Don, how fast have you gone with it.

Should be a nice addition to Josh’s 8080 board for example

John

*From:*[email protected] [mailto:[email protected]] *On Behalf Of *Don Caprio
*Sent:* Friday, August 1, 2014 12:24 PM
*To:* [email protected]
*Subject:* Re: [N8VEM-S100:4777] Re: Announcing FPMini - IMSAI Style front Panel Reproduction

Should work on 8080 and Z80

On Fri, Aug 1, 2014 at 11:50 AM, Andrew Bingham <[email protected] <mailto:[email protected]>> wrote:

What CPUs will this work with?  8080?  Z80?



On Friday, August 1, 2014 10:57:04 AM UTC-7, Don Caprio wrote:


    Were getting ready to order what may be the final revision of the
    S-100 Mini Front Panel Board (AKA FPMini).

    I'd like to get an idea how many builders are interested in
    obtaining this board.
    If your interested please email me your request with desired
    quantity.
    I'm hoping to keep the board in the $25 range.

    Special thanks to Rich and Josh (Crusty) for helping shake out
    this board.



--
    Don Caprio

    [email protected]  <mailto:[email protected]>

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Don Caprio [email protected] <mailto:[email protected]>
http://www.uxpro.com
(925) 240-UNIX

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