A re-creation of the schematic by Mokona can be found on Triceraprog.
Partial software implementation of the EF9345 in Mame: ef9345.cpp
Other partial implementation of the EF9345 (and VG5000µ) using the Chips project: ef9345.h
Memory map:
- 0-16K: internal ROM (vg5k11.bin)
- 16k-32k: internal RAM
I/O decoding:
| R/W | A7 | A6 | A5 | A4 | A3 | A2 | A1 | A0 | demux(7807) | func |
|---|---|---|---|---|---|---|---|---|---|---|
| W | 1 | 0 | 0 | x | x | x | x | x | y0 | EF9345/addr |
| W | 1 | 0 | 1 | x | x | x | x | x | y1 | WK7/cassette |
| W | 1 | 1 | 0 | x | x | x | x | x | y2 | EF9345/data |
| W | 1 | 1 | 1 | x | x | x | x | x | y3 | NMI/i18n |
| R | 1 | 0 | 0 | x | 0 | C | B | A | y4 | RKY/keyb.read |
| R | 1 | 0 | 1 | x | x | x | x | x | y5 | RK7/cassette |
| R | 1 | 1 | 0 | x | x | x | x | x | y6 | EF9345/data |
| R | 1 | 1 | 1 | x | x | x | x | x | y7 |
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