both. In theory, it should be universal.
the difference between the two models, the Backlit has a Refresh line, whilst the original does not. And the backlit /AS becomes /RAMCS, meaning its stuck at a 5MB ceiling, which is why I will have a pin to allow a wire to branch off to the next slot to pick up /AS for the full 9MB.
I will also have a DTACK pin as well, that will connect to the CPU DTACK line to allow the remaining 4MB of address space to be mapped to RAM without throwing bus errors.
In a nutshell, if you want all 9MB, you will have 2 plug-in wires coming of the board going to the ROM slot. or maybe PDS. If you dont want wires, your stuck at 5MB.
the difference between the two models, the Backlit has a Refresh line, whilst the original does not. And the backlit /AS becomes /RAMCS, meaning its stuck at a 5MB ceiling, which is why I will have a pin to allow a wire to branch off to the next slot to pick up /AS for the full 9MB.
I will also have a DTACK pin as well, that will connect to the CPU DTACK line to allow the remaining 4MB of address space to be mapped to RAM without throwing bus errors.
In a nutshell, if you want all 9MB, you will have 2 plug-in wires coming of the board going to the ROM slot. or maybe PDS. If you dont want wires, your stuck at 5MB.