Action Replay AMX: Difference between revisions
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* Has a write only I/O port &FBFB/&FAFB (partially decoded. A10=0, A2=0). A8 controls ROMDIS/RAMDIS signal. Cleared by RESET. | * Has a write only I/O port &FBFB/&FAFB (partially decoded. A10=0, A2=0). A8 controls ROMDIS/RAMDIS signal. Cleared by RESET. | ||
* Freeze button seems to trigger normal interrupt (not NMI?) | * Freeze button seems to trigger normal interrupt (not NMI?) | ||
* Seems like there is rom and ram access. | |||
* The unit has a switch for load/save, looks like A12 is driven depending on that. | |||
== Pictures == | == Pictures == | ||
Revision as of 16:37, 18 October 2020
Action Replay A.M.X.
Made by Datel Electronics.
Now, thanks to Jose Leandro, the hardware specialist of the spectrum, with his famous page :
http://trastero.speccy.org/cosas/JL/JL.htm
We can know more about this hardware.
The hardware only has RAM and not ROM, therefore the device needs software programmed into the RAM to use it.
Technical
- Has a write only I/O port &FBFB/&FAFB (partially decoded. A10=0, A2=0). A8 controls ROMDIS/RAMDIS signal. Cleared by RESET.
- Freeze button seems to trigger normal interrupt (not NMI?)
- Seems like there is rom and ram access.
- The unit has a switch for load/save, looks like A12 is driven depending on that.
Pictures
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Unit front
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Unit back
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PCB Top
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PCB Bottom
- Action Replay AMX Layout, thanks to Jose Leandro
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Action Replay AMX - PCB Front
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Action Replay AMX - PCB Back
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Action Replay AMX - Layout
Downloads
- Action Replay (Eagle).zip (Action Replay AMX files for Eagle)