>>ard(a)p85ug1.demon.co.uk
If it's any help, the AY-3-8912 is the AY-3-8910
with only 1 8 bit I/O
port rather than 2 (and the AY-3-8913 has no I/O ports). The sound
registers are identical.
I'm sure I've got pinouts of all 3 devices, and descriptions of the
registers if you need them.
I'm interested in whatever information you can provide... I've had this
for awhile, but have had no documentation or even code to drive it, so
I couldn't figure it out.
I worked with the MicroPower/Pascal people way back when they worked
on the star wars cantina demo, but I never had a doc set for the
board...
Any help MUCH appreciated...
Megan Gentry
Former RT-11 Developer
+--------------------------------+-------------------------------------+
| Megan Gentry, EMT/B, PP-ASEL | Internet (work): gentry
zk3.dec.com |
| Unix Support Engineering Group | (home): mbg
world.std.com |
| Compaq Computer Corporation | addresses need '@' in place of ' ' |
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| Nashua, NH 03062 | "pdp-11 programmer - some assembler |
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k