knudsen@ihnss.UUCP (04/27/84)
Unless I was mistaken, a few months ago The Rainbow (the major Coco rag) had quite a long and detailed article on this sound chip, how to program it, etc. I could find out the exact issue of The Rainbow if anyone cares. Funny it should pop up in a 6809 magazine, since that's what the Vectrex uses. mike k
bill@hp-pcd.UUCP (05/08/84)
Is that AY-3-8192 or AY-3-8912? If it's in a Vectrex it's over a year old, and there's no AY-3-8192 in my 1982 General Instruments data book. But there is an AY-3-8912 Programmable Sound Generator with the following pinout: __________ | \/ | Analog channel C [| 1 28|] DA0 Test 1 [| 2 27|] DA1 VCC (+5) [| 3 26|] DA2 Analog channel B [| 4 25|] DA3 Analog channel A [| 5 24|] DA4 VSS (gnd) [| 6 23|] DA5 IOA7 [| 7 22|] DA6 IOA6 [| 8 21|] DA7 IOA5 [| 9 20|] BC1 IOA4 [|10 19|] BC2 IOA3 [|11 18|] BDIR IOA2 [|12 17|] A8 IOA1 [|13 16|] RESET\ IOA0 [|14 15|] CLOCK |__________| Is this the same chip? Or is there a newer one? I'd include a detailed description of the chip, but it's pretty long. bill frolik hp-pcd!bill