uRTC-8 is powered by the host computer, but also has a battery backed supply to maintain the time and date when the host is powered down. The battery is a common CR2032 3v button cell.
uRTC-8 is designed to work on the Z80 bus implemented by uIDE-8. The intention is that the board is connected to the Z80 bus in parallel to uIDE-8 to provide a means to set the host computer's clock at boot time, automatically. Initial implementation will The uRTC-8 board is exactly the same size as uIDE-8 with matching mounting holes, so they can be for stacked one above the Amstrad PcW word processorother using PCB standoffs.
== Project status ==