The 28pin '''SmartWatch''' (DS1216) is an adapter that can inserted in standard ROM sockets, a ROM chip can be mounted on the adapter, finally, inside of the adapter is a 16pin '''Phantom Time Chip''' (DS1315). Normal memory reads are forwarded to the piggyback ROM. After reading from a specific sequence of addresses, the ROM is disabled, and data is instead read from the Phantom Chip via 1bit databus. Writing to the Phantom Chip is done by '''reading''' from a specific sequence of addresses, too.
* [[Media:DS1315-phantom-time-chip.pdf|Dallas DS1315 16pin Phantom Time Chip]]
* [[Media:DS1216-smart-watch.pdf|Dallas DS1216 28pin Smart Watch datasheet]]
* [[Media:DS1216-app-note-52.pdf|Dallas DS1216 Application Note]]
=== 64bit packets ===
[[File:RTCdxs.jpeg|720px]]
The expanded version from DXS.
== Downloads ==
* [[media:TIMEROM+.ROM|TIME ROM+]] ROM file
* [[media:MF2_RRB.DSK|MF2_RRB.DSK]] - Vortex disc, containing the TimeRom+ CP/M driver
== Software ==
[[File:WinAPE - Dobbertin SmartWatch.png]]
== Downloads ==
* [[media:TIMEROM+.ROM|TIME ROM+]] ROM file
* [[media:MF2_RRB.DSK|MF2_RRB.DSK]] - Vortex disc, containing the TimeRom+ CP/M driver
==Links==
*[http://www.cpcwiki.eu/forum/amstrad-cpc-hardware/dobbertin-smartwatch-help-needed-!/ CPCWiki Forum thread]
* [[Media:DS1315-phantom-time-chip.pdf|Dallas DS1315 16pin Phantom Time Chip datasheet]]
* [[Media:DS1216-smart-watch.pdf|Dallas DS1216 28pin Smart Watch datasheet]]
* [[Media:DS1216-app-note-52.pdf|Dallas DS1216 Application Note]]
[[Category:FutureOS]]
[[Category:Hardware]]
[[Category:Peripherals]]