In SX Microcontrollers, SX/B Compiler and SX-Key Tool, tempo wrote:

[quote="Jon Williams (Parallax)"]But we already do!  When you buy the SX48/52 protoboard, you get your choice of chip and we toss in a sample power supply at the same time.  :tongue:[/quote]

The SX takeover indeed explains the SX48/52 protoboard: It gets even the thick-fingered (like me) finally started with the SX52 (which probably sells less well than it deserves, due to the barrier of dealing with the package in a prototype setting), at such a lower NRE cost than a new DIP48 package that it's a better choice for Parallax even at the $10 price. Right?

-Even so, the SX28BD/DP would seem to be the obvious next step. 

-Restarting the SX18/DP is probably a good idea, too (once you sell a bit more of the old stock...). I just came up with a project that would use up  SX chips 4 at a time (limited by speed, only 1 8-bit port per device is used most of the time, and for the remainder 4 pins are enough for slow communications), and probably need 2 or 3 sets of 4 to start to be useful. If I build it, the SX18AC will of course be the natural choice due to the price. If there was an SX18BD (i.e. SX52 silicon), that would be a better choice.

-You mentioned undocumented instructions being now documented - I guess there's no hope that one of them is "run code from register RAM", is there?

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