schematics:megadriveexpport
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schematics:megadriveexpport [2006/01/13 03:45] – 195.149.50.76 | schematics:megadriveexpport [2022/07/25 20:50] (current) – Info about pins 28 Tak-MK | ||
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Line 7: | Line 7: | ||
^pin^Name^Description^-^pin^Name^Description^ | ^pin^Name^Description^-^pin^Name^Description^ | ||
|A01|GND|Ground|-|B01|GND|Ground| | |A01|GND|Ground|-|B01|GND|Ground| | ||
- | |A02|NC|No Contact|-|B02|!DISK|| | + | |A02|A19|Address 19|-|B02|/DISK|((Presumably signalling the presence of a CD?))| |
- | |A03|/C_OE|-|-|B03|A01|Address 01| | + | |A03|/CAS0|-|-|B03|A01|Address 01| |
|A04|D00|Data 00|-|B04|A02|Address 02| | |A04|D00|Data 00|-|B04|A02|Address 02| | ||
|A05|D01|Data 01|-|B05|A03|Address 03| | |A05|D01|Data 01|-|B05|A03|Address 03| | ||
Line 26: | Line 26: | ||
|A19|D14|Data 14|-|B19|A16|Address 16| | |A19|D14|Data 14|-|B19|A16|Address 16| | ||
|A20|D15|Data 15|-|B20|A17|Address 17| | |A20|D15|Data 15|-|B20|A17|Address 17| | ||
- | |A21|87/315-5364|-|-|B21|/LDS|-| | + | |A21|/ROM||-|B21|/LWR|(P-SRAM)| |
- | |A22|/ | + | |A22|/ASEL|(/LO_MEM)|-|B22|/UWR|(P-SRAM)| |
- | |A23|91/315-5364|-|-|B23|!CAS_2|((This pin connects to the cartridge slot B21, function unknown.))| | + | |A23|/RAS2|-|-|B23|/CAS2|-| |
- | |A24|86/315-5364|-|-|B24|85/315-5364|-| | + | |A24|/FDC|-|-|B24|FDWR|((Function unknown))| |
- | |A25|10/315-5309|-|-|B25|10/315-5309|-| | + | |A25|FRES|-|-|B25|A18|-| |
|A26|+5v|+5v DC|-|B26|+5v|+5v DC| | |A26|+5v|+5v DC|-|B26|+5v|+5v DC| | ||
- | |A27|NC|No Contact|-|B27|NC|No Contact| | + | |A27|SR3|Audio Out (R)|-|B27|SL3|Audio Out (L)| |
- | |A28|VCC | + | |A28|VCC |
- | ))|-|B28|VCC | + | |A29|SR2|Audio In (R)|-|B29|SL2|Audio In (L)| |
- | |A29|Audio In|((This is assumed functional, but is untested. Should be bi-directoinal on Gensis 2))|-|B29|Audio In|-| | + | |
|A30|GND|Ground|-|B30|GND|Ground| | |A30|GND|Ground|-|B30|GND|Ground| | ||
- | // | + | ^ Label ^ Description ^ |
+ | | CAS | Column Address Strobe | ||
+ | | RAS | Row Address Strobe | ||
+ | |||
+ | |||
+ | |||
+ | // |
schematics/megadriveexpport.1137087927.txt.gz · Last modified: 2019/08/27 20:44 (external edit)