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- Path: sparky!uunet!portal!cup.portal.com!Rick_Michael_Cortese
- From: Rick_Michael_Cortese@cup.portal.com
- Newsgroups: comp.sys.atari.8bit
- Subject: Re: Adding a 2nd PIA
- Message-ID: <65783@cup.portal.com>
- Date: Sun, 13 Sep 92 10:01:14 PDT
- Organization: The Portal System (TM)
- Distribution: world
- References: <15064@mindlink.bc.ca> <92256.122353JJMCWILL@MTUS5.BITNET>
- Lines: 12
-
- Jeff: Exactly! You'd be killer on Jeapardy. Chuck's stuff is good, but
- for simplicity, one piggy backed chip & one jumper has got to be simpler.
- The 2nd '138 so you can add 7 more devices is IMHO the right way to do it.
- I was "IFFY" on some of the other BUSS ideas I was throwing out, but this
- seems "RIGHT". Heck, you only need 8 data lines, lower 8 bits of address,
- and some glue signals W power. I just spent $130 for a burnner that's just
- a couple of PIA's with some voltage regulators & a ZIF socket.
- BTW: I'll still admit you're right with the 16550, but like I said, I'm
- a little lazy for doing things right. I will write a R: handler for the
- 6551 when I finish it. Would've been this weekend, but my nephew's in the
- finals of some batting contest before the Oakland's A's game so I'm out
- of here!
-