Not exactly what you asked but maybe useful.
Jan
Op di 11 apr 2023 om 18:41 schreef Bernd Kopriva via cctalk <
cctalk(a)classiccmp.org>gt;:
Hi,
a friend of mine is currently working on a FPGA implementation of the
CERES-3 workstation (
cpu-ns32k.net/TRIPUTER.html#Ceres).
He currently lacks of information of the RTC chip M3001 which was
manufactored by Swiss company Microelectronic-Marin.
Does anyone have a pointer to the datasheet ?
Thanks Bernd