Re: SPI Slave mode interrupt or not (poll)...
IPA as India Pale Ale ?
Although there are similar German beers available (Andechser Doppelbock might match), the term IPA isn't known here.
As I came to know the products of a small Austrian brewery, from time to time I enjoy a beer that somewhat ressmbles Champagne (high CO2 pressure, thus sold in Champagne bottles). Plus their full bandwidth from very light beers, Weizen, a very malty beer etc. Plus the occasional Pilsener.
PEBKAC / EBKAC / POBCAK / PICNIC (eventually see en.wikipedia.org)