Path: utzoo!news-server.csri.toronto.edu!cs.utexas.edu!uwm.edu!bionet!agate!ucbvax!dog.ee.lbl.gov!nosc!simasd!baron!pnet07!donm
From: donm@pnet07.cts.com (Don Maslin)
Newsgroups: comp.sys.ibm.pc.hardware
Subject: Re: More on AT buses.
Message-ID: <1991Mar7.192505.21567@simasd.uucp>
Date: 7 Mar 91 19:25:05 GMT
Sender: pnet@simasd.uucp (People-NET)
Organization: People-Net [pnet07], San Diego, CA
Lines: 45

dwsmall@miavx1.acs.muohio.edu writes:
>Well I managed to get the pin outs for the 8 bit slot form the IBM
>technical referance manual but the guy who got it for me didn't get
>the pin assignments for the 16 bit part.  Does anyone have the manual?,
>and if you do could you give the pin assingments.  It's page I-30 and I-31
>the pin numbers are D1-D18 and C1-C18.
 
The pin assignments are as follow:
 
               I/O BUS 36-PIN CONNECTOR
         (this end nearest 62-pin connector)
                    ______________
      -MEM CS16>   |  D1      C1  |     > SBHE
      -I/O CS16>   |  D2      C2  |   < > LA23
      IRQ10    >   |  D3      C3  |   < > LA22
      IRQ11    >   |  D4      C4  |   < > LA21
      IRQ12    >   |  D5      C5  |   < > LA20
      IRQ15    >   |  D6      C6  |   < > LA19
      IRQ14    >   |  D7      C7  |   < > LA18
      -DACK0 <     |  D8      C8  |   < > LA17
      DRQ0     >   |  D9      C9  |     > -MEMR
      -DACK5 <     |  D10     C10 |     > -MEMW
      DRQ5     >   |  D11     C11 |   < > SD08
      -DACK6 <     |  D12     C12 |   < > SD09
      DRQ6     >   |  D13     C13 |   < > SD10
      -DACK7 <     |  D14     C14 |   < > SD11
      DRQ7     >   |  D15     C15 |   < > SD12
      +5 Volts     |  D16     C16 |   < > SD13
      -MASTER  >   |  D17     C17 |   < > SD14
      Ground       |  D18     C18 |   < > SD15
                   |______________|
 
  Symbols pointing toward the connector designate signals into the
  system board (from devices on the bus), and vice versa. < > indicates
  bi-directional signals.
 
>I don't think this would violate any copywrite laws but someone let me know
>if I'm wrong.  Any and all help is much appriciated.
>
I shouldn't think so, it is published in multiple places.
 

Keeper of the CP/M System Disk | UUCP: {nosc ucsd crash ncr-sd}!pnet07!donm
Archives for the Dino(saur)SIG | ARPA: simasd!pnet07!donm@nosc.mil
- San Diego Computer Society - | INET: donm@pnet07.cts.com