Changes
RTC
,/* PC compatible RTC chip */
Usage in [[Aleste 520EX - I/O Ports]]:
Uses a russian KR512WI1 chip (which is, according to the Aleste's Manual) compatible to western MC146818 chips.
Connects to a 32.768kHz crystal.
Connects to the PPI:
PPI Port C.Bit1 = Index Access (0=No, 1=Access)
PPI Port C.Bit2 = Data Access (0=No, 1=Access)
In the Aleste's Ext Port, the RTC must be enabled, and PSG and 8253 must be disabled.
=== RTC Registers ===
