Re: RB730 Integrated Disk Controller (R80/RL02) usable with VAX-11/750?

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From	koehler@eisner.nospam.encompasserve.org (Bob Koehler)
Newsgroups	comp.sys.dec, comp.os.vms
Subject	Re: RB730 Integrated Disk Controller (R80/RL02) usable with VAX-11/750?
Message-ID	<9hXyOq0vMb34@eisner.encompasserve.org> (permalink)
Date	4 May 2011 08:32:53 -0500
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In article <ipqpfi$qvl$1@Iltempo.Update.UU.SE>, Johnny Billquist <bqt@softjar.se> writes:
> 
> Except then of course it isn't the system bus, but just an I/O bus... :-)

   If everything except the CPU-memory connection is on the same
   bus, and CPU and memory are also on that bus, then which is the
   system bus?

> 
> I'm not even sure I understand that comment.
> The Unibus map is a way to map the Unibus 18-bit address into a 22-bit 
> address (for large PDP-11s) or 32-bit address (for VAXen).

   It's a matter of how big the "map" is.  Drivers had to break up
   large transfers, so I assume the "map" was only one entry (more
   like an APR than a map).  Or maybe it was just a few, I forget
   the upper limit, but I recall it was only for the 11/725.

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RB730 Integrated Disk Controller (R80/RL02) usable with VAX-11/750? vaxorcist <vaxorcist@googlemail.com> - 2011-05-02 02:52 -0700
  Re: RB730 Integrated Disk Controller (R80/RL02) usable with VAX-11/750? Johnny Billquist <bqt@softjar.se> - 2011-05-02 08:49 -0700
  Re: RB730 Integrated Disk Controller (R80/RL02) usable with VAX-11/750? John Wallace <johnwallace4@yahoo.co.uk> - 2011-05-02 14:57 -0700
  Re: RB730 Integrated Disk Controller (R80/RL02) usable with VAX-11/750? SeanOBanion <sean@obanion.us> - 2011-05-02 17:05 -0700
    Re: RB730 Integrated Disk Controller (R80/RL02) usable with VAX-11/750? Johnny Billquist <bqt@softjar.se> - 2011-05-02 21:59 -0700
      Re: RB730 Integrated Disk Controller (R80/RL02) usable with VAX-11/750? koehler@eisner.nospam.encompasserve.org (Bob Koehler) - 2011-05-03 08:13 -0500
        Re: RB730 Integrated Disk Controller (R80/RL02) usable with VAX-11/750? Roger Ivie <rivie@ridgenet.net> - 2011-05-03 08:28 -0500
          Re: RB730 Integrated Disk Controller (R80/RL02) usable with VAX-11/750? koehler@eisner.nospam.encompasserve.org (Bob Koehler) - 2011-05-03 12:34 -0500
            Re: RB730 Integrated Disk Controller (R80/RL02) usable with VAX-11/750? Johnny Billquist <bqt@softjar.se> - 2011-05-03 22:50 -0700
              Re: RB730 Integrated Disk Controller (R80/RL02) usable with VAX-11/750? koehler@eisner.nospam.encompasserve.org (Bob Koehler) - 2011-05-04 08:32 -0500
                Re: RB730 Integrated Disk Controller (R80/RL02) usable with VAX-11/750? Johnny Billquist <bqt@softjar.se> - 2011-05-04 10:13 -0700
                Re: RB730 Integrated Disk Controller (R80/RL02) usable with VAX-11/750? koehler@eisner.nospam.encompasserve.org (Bob Koehler) - 2011-05-04 12:22 -0500
                Re: RB730 Integrated Disk Controller (R80/RL02) usable with VAX-11/750? Johnny Billquist <bqt@softjar.se> - 2011-05-04 20:25 -0700
                Re: RB730 Integrated Disk Controller (R80/RL02) usable with VAX-11/750? koehler@eisner.nospam.encompasserve.org (Bob Koehler) - 2011-05-05 09:02 -0500
                Re: RB730 Integrated Disk Controller (R80/RL02) usable with VAX-11/750? Johnny Billquist <bqt@softjar.se> - 2011-05-05 09:57 -0700
                Re: RB730 Integrated Disk Controller (R80/RL02) usable with VAX-11/750? SeanOBanion <sean@obanion.us> - 2011-05-06 07:54 -0700
                Re: RB730 Integrated Disk Controller (R80/RL02) usable with VAX-11/750? Johnny Billquist <bqt@update.uu.se> - 2011-05-06 10:00 -0700
                Re: RB730 Integrated Disk Controller (R80/RL02) usable with VAX-11/750? Johnny Billquist <bqt@softjar.se> - 2011-05-05 10:01 -0700
                Re: RB730 Integrated Disk Controller (R80/RL02) usable with VAX-11/750? koehler@eisner.nospam.encompasserve.org (Bob Koehler) - 2011-05-06 11:54 -0500
                Re: RB730 Integrated Disk Controller (R80/RL02) usable with VAX-11/750? Johnny Billquist <bqt@update.uu.se> - 2011-05-06 10:05 -0700
        Re: RB730 Integrated Disk Controller (R80/RL02) usable with VAX-11/750? Johnny Billquist <bqt@softjar.se> - 2011-05-03 08:44 -0700
          Re: RB730 Integrated Disk Controller (R80/RL02) usable with VAX-11/750? koehler@eisner.nospam.encompasserve.org (Bob Koehler) - 2011-05-03 12:36 -0500
          Re: RB730 Integrated Disk Controller (R80/RL02) usable with VAX-11/750? koehler@eisner.nospam.encompasserve.org (Bob Koehler) - 2011-05-03 12:42 -0500
      Re: RB730 Integrated Disk Controller (R80/RL02) usable with VAX-11/750? SeanOBanion <sean@obanion.us> - 2011-05-03 09:38 -0700
        Re: RB730 Integrated Disk Controller (R80/RL02) usable with VAX-11/750? SeanOBanion <sean@obanion.us> - 2011-05-03 09:48 -0700
          Re: RB730 Integrated Disk Controller (R80/RL02) usable with VAX-11/750? John Wallace <johnwallace4@yahoo.co.uk> - 2011-05-03 10:35 -0700
            Re: RB730 Integrated Disk Controller (R80/RL02) usable with VAX-11/750? BillPedersen <pedersen@ccsscorp.com> - 2011-05-03 10:47 -0700
          Re: RB730 Integrated Disk Controller (R80/RL02) usable with VAX-11/750? Johnny Billquist <bqt@softjar.se> - 2011-05-03 23:09 -0700
  Re: RB730 Integrated Disk Controller (R80/RL02) usable with VAX-11/750? ChrisQ <meru@devnull.com> - 2011-05-03 14:16 +0100
    Re: RB730 Integrated Disk Controller (R80/RL02) usable with VAX-11/750? koehler@eisner.nospam.encompasserve.org (Bob Koehler) - 2011-05-03 12:27 -0500

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