This manual (Chapter 10) describes a 'ROM Cartrudge II' that is provided as
a plug-in option in the HX-20. The ROM Cartridge II supplies from 8k to 32k
bytes of data. Data in the externam ROM memory unit is in the forrm of a
read-only ROM file. Data are read from the external ROM memory unit via
i/oports using an addressing counter and a shift register....
port info follows.....
-----Original Message-----
From: Tony Duell <ard_at_p850ug1.demon.co.uk>
>[HX20]
>
>> The microcassette drive was actually removable. I don't know if Epson
>> ever released anything else that could plug into that space besides the
>
>The hardware manual mentions (and gives a schematic for) an EPROM
>cartridge that will fit up there. I've never tried to build one, but it
>looks possible.
>
>-tony
>
>
Received on Sat Nov 07 1998 - 19:55:24 GMT