Table of Contents
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
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.
Other Notes
With apologies, I've forgotten what a lot of these notes mean. It's been a long time since I made them.
Oct 2009: This is the textual description of the circuitry supplying the 21MHz clock signal to the Hu6280/Hu6260.
Something to do with the clock circuit?
Clock -> R163 -> C138 -> R117 -> +5v
| +> R118 -> GND
| +> Hu6280 10
|
+> R164 -> C137 -> R115 -> +5v
+> R116 -> GND
+> Hu6260 2