Usage in [[Dk'tronics Real Time Clock]]:
Uses a HD146818 chip.
Details on FBE0h Dk'tronics Real Time Clock - Z80 PIO Port A Data (HD146818P RTC Data bus) FBE1h Dk'tronics Real Time Clock - Z80 PIO Port B Data, used for external control (General Purpose 8bit I/O addresses are Port) FBE2h Dk'tronics Real Time Clock - Z80 PIO Port A Control (do not use as this will affect the RTC operation) FBE3h Dk'tronics Real Time Clock - Z80 PIO Port B Control FBE8h Dk'tronics Real Time Clock - Control port for RTC chip (4bit latch) (details unknown.)
----