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pcenetlist [2006/10/25 21:01]
nfg old revision restored
pcenetlist [2019/08/27 20:45] (current)
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 +===== PC Engine Chip Pinouts =====
 +This data was taken from numerous places.  Special thanks to the usual PCE crew: Chris Covell, bt garner, Joann, and also to Backup Technik/GameLab magazine, from which I occasionally learned something new.
 +
 +
 +==== Conventions used ====
 +{{  http://nfg.2y.net/grafx/HuChip.gif}}Throughout these pages you'll find abbreviations and shorthand terms for a lot of connections.  Here's a guide:
 +^ Short ^ Long ^ Short ^ Long ^
 +|  Dxx  |  Data (number)  |  Axx  |  Address (number)  |
 +|  /WR  |  Write Enable    /OE  |  Output Enable  |
 +|  /CE  |  Chip Enable  |  NC  |  Not Connected  |
 +|  I/O  |  Input/Output  |  RAxx  |  RAM pin#  |
 +
 +  * Misc ICs are the two RAM chips (numbered 1, 2, and 12 for both)
 +
 +
 +==== The NetList ====
 +Someone once told me that when you make a list of connections on a circuit it's called a netlist.  So here's the netlist for each chip.
 +  * [[Hu6260 Netlist]]
 +  * [[Hu6270 Netlist]]
 +  * [[Hu6280 Netlist]]
 +
 +==== Other Notes ====
 +With apologies, I've forgotten what a lot of these notes mean.  It's been a long time since I made them.
 +
 +Something to do with the clock circuit?
 + Clock -> R163 -> C138 -> R117 -> +5v
 +       |               +> R118 -> GND
 +       |               +> Hu6280 10
 +       |
 +       +> R164 -> C137 -> R115 -> +5v
 +       +> R116 -> GND
 +       +> Hu6260 2
 +
  
 
 
 
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