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Author Topic: A3000/4000 1MB ROM Mod  (Read 1529 times)

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Offline SpeedGeekTopic starter

A3000/4000 1MB ROM Mod
« on: November 02, 2011, 11:31:39 PM »
« Last Edit: October 27, 2020, 01:36:02 PM by SpeedGeek »
 

Offline SpeedGeekTopic starter

Re: A3000/4000 1MB ROM Mod
« Reply #1 on: November 05, 2014, 03:27:27 PM »
** NEWS UPDATE **

Romy Rev. 10 has been released!

Here is some revision update info:

- New state machine logic replaces counter + flip-flop logic
- REG2 was eliminated and is now a free I/O pin
- STERM and DSTERM outputs are asserted for 2 clocks to provide more reliable operation on timing modified systems
- 4MB version address range moved to $01000000-$013FFFFF (should work with exec v45.20 without any patching!) ;)