From: Jaap van Ganswijk To: Natopta Evgeny Subject: AM9519 At 03:43 1998-07-30 +0300, Natopta Evgeny wrote: >I am very sorry for your busy, but am9519 != i8259! >I find anything for am9519 .. >Best wishes Evgeny. I'm never too busy for good tips! I just checked in the 1983 AMD data book and the chips indeed seem to be different, although very alike. It seems that the 8259 has control lines for the i8080 architecture and the 9519 is more universal. Pinout of the Am9519A: /cs 1 28 5V /wr 2 27 c/d /rd 3 26 /iack db7 4 25 ireq7 db6 5 24 ireq6 db5 6 23 ireq5 db4 7 22 ireq4 db3 8 21 ireq3 db2 9 20 ireq2 db1 10 19 ireq1 db0 11 18 ireq0 /rip 12 17 gint ei 13 16 eo gnd 14 15 /pause The pinout of the 8259 should already be in the ChipDir...