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| TurboR PCB prototype with V9990?
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Leo
msx freak
Berichten: 238 |  Geplaatst: 03 Juli 2006, 22:09 |
could it be a 3DO motherboard ?
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arnold_m
msx lover
Berichten: 85 | Geplaatst: 03 Juli 2006, 23:34 |
Quote:
| well, the other surface chip has 44pins, not enought for z80 or msx engine what hell is that chip!!
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Actually the Z80 is also available in a 44 pin smd package, as shown by this pinout. The dip version has only 40 pins. |
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flyguille
msx master
Berichten: 1223 | Geplaatst: 05 Juli 2006, 03:17 |
ah , true, the z80 has 40 pins!.
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mohai
msx lover
Berichten: 127 | Geplaatst: 05 Juli 2006, 10:14 |
The 27C256 is probaly for Kanji ROM. V9990 is capable of using this feature
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mohai
msx lover
Berichten: 127 | Geplaatst: 05 Juli 2006, 10:23 |
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Alexandre_Taito
msx freak
Berichten: 183 | Geplaatst: 05 Juli 2006, 20:35 |
pages 113 and 114 of the e-vdp-III manual says all: Evaluation board for the 9990, to be connected to IBM-PC, MSX or PC-98 via three separate boards (supplied with the kit). Nothing about being a MSX1, 2 or 5  . The 50 pin connector has nothing to do with the MSX bus standard  |
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