== PC compatible RTC chip ===== Usage in CPCs ===
Usage in [[SYMBiFACE II:Realtime clock]]:
Unknown if century is supported.
=== RTC Registers ===
00h Second (00..59) ;\
32h battery backed RAM (commonly used as Century) (19..99) (see notes)
=== Century Notes ===
First of, whether or not the Century is stored at [32h] depends on software. PCs are conventionally using it like so. SYMBiFACE II seems to (try to) do the same. Whether the Aleste and Dk'tronics do store the century is unknown - and, if they should do, it might be anywhere at [32h] or elsewhere, in BCD or in binary... or even octal or ascii.
SYMBiFACE II Cautions: Incorrectly claims to have 128 bytes battery backed RAM (but actually uses a DS1287A chip with 50 bytes battery backed RAM) (128 byte chips don't exist anyways, the maximum would be 114 bytes). The century is accidently referred to as millennium, it seems to be stored as BINARY value 19 or 20 (which may conflict with the Y2K-panic chips which are only "optimized" for destroying BCD values).
== Other chips ==
[[ACU Real Time Clock (DIY)]]
[[Category:Datasheet]]