Hi, I did not check the address line logic in your diagram, it seems allright. All necessary lines are covered (slot select and CSx are most important) and kept high. Addresslines above A7 are therefore irrelevant, since the inernal rom will stay disabled.
If the clock is equivalent to MSX then it is doable this way! What is I/O address F2 used for anyway? It is now just a r/w store? Hans ----- Original Message ----- From: "Richard Atkinson" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Cc: <[EMAIL PROTECTED]> Sent: Thursday, January 17, 2002 19:04 Subject: Sega Master System MSX-MUSIC adaptor > I've finished the schematic of my MSX-MUSIC adaptor for the Sega Master > System, and put it online. There's a short description of it in the S8 dev > forum (third post!) and I've included the direct link here also. > > http://www.smspower.org/dev/forum/index.shtml > > and > > http://student.cusu.cam.ac.uk/~rga24/computer/projects/adaptor.pdf > > Comments / bugfixes / suggestions welcome. > > > Richard > > -- > For info, see http://www.stack.nl/~wynke/MSX/listinfo.html > -- For info, see http://www.stack.nl/~wynke/MSX/listinfo.html
