[Coco] XPander-Coco lives!

[Zippster]

That’s a good point I didn’t give much thought to.  I know the reset switch works ok, 
but that doesn’t mean something else would.

Since we’re working with a CPLD in the mix on these boards, I guess the reset
signal to the cart ports could be routed through it, and used to toggle !MR on the MAX811.

Then I guess you’d need to read the status of the reset line (CoCo side) and forward that
to the slots as well for a full system reset.  Complicates things a bit.

- Ed


> On May 1, 2016, at 5:42 PM, RETRO Innovations <go4retro at go4retro.com> wrote:
> 
> On 5/1/2016 5:38 PM, Zippster wrote:
>> Hmmm, I would think so, but the MAX811 has a master reset on pin 3.  You can drive this low to activate reset as well.
>> Glancing at the data sheet, consider !MR internally held high by the equivalent of a 10K pull up.
>> 
>> Are you wondering if a cart will be able to reset the system with the MAX811 in place?
> Yep.  I think the supervisor is a great idea, but since RESET is a "wired or" type line, I think the device needs to allow others to pull reset low.
> 
> Jim
> 
> 
> 
> 
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