[Cryptech Tech] Alpha board BOM and PCB design requirements

[Fredrik Thulin]

On Monday, March 09, 2015 08:41:07 PM Jakob Schlyter wrote:
> Regarding the tamper circuit, I cannot parse:
> 
> 	• At least four digital input pins on a header for four different digital
> (HIGH) tamper detection mechanisms. • At least two digital output pins on a
> header for four different digital (HIGH) tamper alarms.
> 
> Do you mean for 4 input and 4 output, or 4 input and 2 output? Is the tamper
> test button one of the inputs?

I think the intent was for 4 inputs and 2 output but I don't parse the HIGH 
part either so I'll wait for Joachims comments on this as well.

> Can we get away with a single battery for both the tamper circuit and the
> RTC? I would hope so.

Seems doable to me.

/Fredrik