I am on a roll tonight! Sony's semiconductor division has a lightweight technical journal of sorts ("CX-NEWS") where they discuss new parts. And they have ~50 issues online now:
http://www.sony.net/Products/SC-HP/cx_n ... umber.html
Lots of interesting stuff in here, you can see the trends in memory, Sony audio products (MiniDisc, etc.) over the years, and little known weird things like the successor to the SNES SPC700 CPU, the SPC700αII.
I think NEC has or had a similar set of journals on their Japanese website. Any idea if it still exists or is archived somewhere?
I wonder what the origin of the name comes from, as all the Sony chips have the prefix CX as well...
Don't forget your two NOPs after CSH.