Topic       : Pure Assembler Documentation
Author      : John Kormylo
Version     : PASM.HYP 1.0
Subject     : Documentation/Pure Assembler
Nodes       : 740
Index Size  : 20262
HCP-Version : 3
Compiled on : Atari
@charset    : atarist
@lang       : en
@default    : 
@help       : Help
@options    : +g -i -s +x +z -t4
@width      : 75
View Ref-File[ MC146818A Real Time Clock                -- TT only -- ]

Register 0: seconds (0-59)
Register 1: seconds alarm (0-59)
Register 2: minutes (0-59)
Register 3: minutes alarm (0-59)
Register 4: hours (0-23)
Register 5: hours alarm (0-23)
Register 6: day of week (1-7, Sunday = 1)
Register 7: day of month (1-31)
Register 8: year (0-99)
Register 10: RTC Register A ($2A)
Register 11: RTC Register B ($06)
Register 12: RTC Register C - interrupt status
Register 13: RTC Register D - battery failure
Register 14-63: Non-volatile Memory

See also TT MFP Interrupt Registers.