This is the documentation about the '''realtime clock''' of the [[SYMBiFACE II]] expansion card.
My (arnoldemu's) SYMBiFACE II uses a Dallas DS12887ARTC chip. Documents claim [https://www.cpcwiki.eu/forum/amstrad-cpc-hardware/real-time-clock-board/msg249380/#msg249380 Source] According to the datasheet, this has 128 113 bytes RAM. Century register doesn't exist. It's ram inside the device.The picture from the Symbos website shows a DS1287A. This has 50 bytes RAM. Century register doesn't existon this particular model.
Both are [[PC compatible RTC chip]] and are programmed in the same way.
