1h1a0m@kuhub.cc.ukans.edu (10/02/90)
In article <238@motto.UUCP>, andrew@motto.UUCP (Andrew Walduck) writes: > > Here's something for the archaic hardware types out there... > > I recently acquired an old (4.77MHZ) XT. Inside is an AST Sixpack card. > Does anyone have documentation for it? IE: the jumper settings... > how to read/write the clock...and maybe a list of the six functions it > performs...I know it is memory expansion, and a clock/calendar...but > what else?? I have an IBM PC with a SixPackPlus in it. Features: - memory expansion upgradeable to the maximum addressable user memory in the IBM PC, PC-XT, Portable PC, and 3270 PC systems. - Real-time Clock-Calendar with battery backup. - RS-232 asynchronous serial communications port. - parallel printer port. - optional game adapter port. Clock: To read/set the clock, you'll need ASTCLOCK.COM, the real-time, clock-calendar program. Should be put in your autoexec.bat file. You can get it through AST's BBS in CA. There's also a bunch of utility programs which I think you can also get from their BBS (I don't have them). Now on to the switch settings... SixPakPlus Starting Memory Address- Switch 1 starting address S1 S2 S3 Max RAM on 6-pack ---------------- --- --- --- ----------------- 64K(:10000) off off off 384K 128K(:20000) off off on 384K 192K(:30000) off on off 384K 256K(:40000) off on on 384K 320K(:50000) on off off 320K 384K(:60000) on off on 256K 448K(:70000) on on off 192K 512K(:80000) on on on 128K Amount of memory installed Banks installed S4 S5 S6 Total 6-pack RAM --------------- --- --- --- ---------------- none off off off 0K 1 off off on 64K 2(1-2) off on off 128K 3(1-3) off on on 192K 4(1-4) on off off 256K 5(1-5) on off on 320K 6(1-6) on on off 384K Position 7 of switch 1 can be on or off Parity check: s-8 on = parity enabled s-8 off = parity disabled Remeber to replace the lithium battery if dead. This'll get you going. The AST BBS in CA has more information or you may send for a manual ($$$ I guess). Tony Montes