Added address signals from Z80 to video memory
by giuliof 2 years 8 months
1cc745c8
Added bus buffers (or their placeholders) to z80cp...
by giuliof 2 years 8 months
Added bus buffers (or their placeholders) to z80cpu schematic
e1d29597
Removed GPL license, since this is not an original...
by giuliof 2 years 9 months
Removed GPL license, since this is not an original work but a reverse engineering.
da03cddf
Some steps in bank switching and crtc circuits
by giuliof 2 years 9 months
Some steps in bank switching and crtc circuits

- crtc pixel clock generator
- 2k ram, enabling logic (heavily incomplete)
- other 2k ram, annotation regarding data bus
a0055860
Add PDF export script.
by giomba 2 years 9 months
56d28f7f
Add daughterboard schematics.
by giomba 2 years 9 months
f832a2b0
Embed new sheets and fix symbols.
by giomba 2 years 9 months
c0f47dca
Add GPIO uPD8255 wiring for bank switching.
by giomba 2 years 9 months
bb53ca35
Specialize generic IO sheet to SIO (serial) relate...
by giomba 2 years 9 months
Specialize generic IO sheet to SIO (serial) related.
e736d0ad
Add address wires for SIO.
by giomba 2 years 9 months
28745a0c
Report a bug