We are going to phase out the JSAII audio board and the SAII audio 
board. JSA-III will replace JSAII for Jamma compatable piggy back
audio boards, and SA-IIS will replace SAII for true stand alone
non-jamma applications.

JSA-III : 
This will be like JSAII except -
. Banking will be added to the ADPCM ROM area to double the 
  capacity. Four Mbits of memory will be available either as 4 1-Meg 
  EPROMS or 1 4-MEG mask ROM.
. SCOM will be removed. The main cpu upper data bus (d15-d8) and the 
  two status flags will go to the audio board through the 40 pin 
  connector. A simple parallel port will be implememted on the audio 
  board. 
. The volume pot will be changed to a more standard / readily 
  available type, probably with a linear taper.
. The 40 position connector will probably be changed to one that does
  not require hand soldering.


SA-IIS
This will be like SAII except -
. Stereo output will be provided.
. Banking will be added to the ADPCM area just like JSA-III.
. The volume control will change, possibly eliminated and replaced 
  with a digital volume control, adjusted only in self test.

Note that SCOM will stay on this board.

BATMAN and G1.1 (RAT-RACE) will be the first games using JSA-III.
Cyclotron and/or NONAME may use SA-IIS.
Other games that do not need a seperate processor for audio are unaffected.