[Coladam] Coladam Digest, Vol 86, Issue 15

shonmccallum at juno.com shonmccallum at juno.com
Mon Aug 6 17:39:44 CEST 2012


                Maybe with a firmware update or special software written, the Atarimax Ultimate SD cartiridge might be able to be used as a Adam drive. It uses up to 32GB SDHC cards which is plenty of room to store everything that was every created on the Adam on one 32GB SDHC card.<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" />
                Maybe there is some way the Atarimax Ultimate SD cartridge could be used as a Adamnet SD drive. Can the cartridge slot be made to access Adamnet with a software patch?  


---------- Original Message ----------
From: coladam-request at adamcon.org
To: coladam at adamcon.org
Subject: Coladam Digest, Vol 86, Issue 15
Date: Mon, 06 Aug 2012 17:16:10 +0200

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Today's Topics:

  1. Re: Transferring ADAM tape/disk images to physical media
     (Dale Wick)
  2. Re: Transferring ADAM tape/disk images to physical media
     (Dale Wick)
  3. Re: RCA v. coax v. ADAM (Dale Wick)
  4. Re: Official list of allocated Coleco Adam i/o ports (John Turner)


----------------------------------------------------------------------

Message: 1
Date: Mon, 6 Aug 2012 07:14:32 -0700 (PDT)
From: Dale Wick <dmwick at yahoo.com>
Subject: Re: [Coladam] Transferring ADAM tape/disk images to physical
media
To: "tscott at magiqueproductions.com" <tscott at magiqueproductions.com>,
"coladam at adamcon.org" <coladam at adamcon.org>
Message-ID:
<1344262472.67933.YahooMailNeo at web88517.mail.bf1.yahoo.com>
Content-Type: text/plain; charset=iso-8859-1

Well that's not a bidirectional serial port, only for receiving data, and not sending data.? So that isn't the best.? There are a fair amount of RS-232 serial port board available for the Adam, in 4 or 5 different styles.? To me, that was always the best method.
?
Syd Carter made a sound digitizer cartridge called the Dynomite Sound Digitizer, which memory mapped the sound digitizing.? And that makes me wonder about transferring disk and tape images via the cartridge slot, maybe using a microcontroller.
?
Dale


________________________________
From: "tscott at magiqueproductions.com" <tscott at magiqueproductions.com>
To: coladam at adamcon.org 
Sent: Friday, August 3, 2012 12:40:54 PM
Subject: Re: [Coladam] Transferring ADAM tape/disk images to physical media

Jeff Frohwein has some code for using the joystick port as a serial port.
I found the web archive for his work here:

http://web.archive.org/web/20040811191606/http://adamcon.org/jeff_frohwein/


Tommy

>
> Did the adamlink modem use an UART or ACIA chip connected to a single chip
> 300 Baud modem? The TRS-80 CoCo Direct Connect Modem Pak was such a beast
> and I took the modem chip out and added level converters and turned it
> into a serial port (based on information from Marty Goodman). If the
> Adamlink modem is designed like that it could theoretically be converted
> into a serial port.
>
>> Date: Fri, 3 Aug 2012 11:37:41 -0400
>> From: kjpmail at gmail.com
>> To: oltmansg at bellsouth.net
>> CC: coladam at adamcon.org
>> Subject: Re: [Coladam] Transferring ADAM tape/disk images to physical
>> media
>>
>> How do you get a serial port on the ADAM?
>>
>>
>> On Fri, Aug 3, 2012 at 11:30 AM, geoffrey oltmans
>> <oltmansg at bellsouth.net>wrote:
>>
>> > ah yes... you can definitely do it over a serial connection if you
>> have
>> > access to a serial port on the ADAM. I've used MEX or IMP in TDOS for
>> > this... I've only ever done it using a DDP as temporary storage for
>> the
>> > image before transferring to disk, or a hard disk. Someone else might
>> have
>> > another approach that works as well.
>> >
>> > ------------------------------
>> > *From:* Kevin Powers <kjpmail at gmail.com>
>> > *To:* geoffrey oltmans <oltmansg at bellsouth.net>
>> > *Cc:* coladam at adamcon.org
>> > *Sent:* Fri, August 3, 2012 10:22:44 AM
>> > *Subject:* Re: [Coladam] Transferring ADAM tape/disk images to
>> physical
>> > media
>> >
>> > No means of accomplishing this over a serial connection?
>> >
>> >
>> > On Fri, Aug 3, 2012 at 11:11 AM, geoffrey oltmans
>> <oltmansg at bellsouth.net>wrote:
>> >
>> >> Disks are relatively easy, provided you have an old MS-DOS or linux
>> PC
>> >> laying around (286-486 machine is perfect) with a double density
>> 5.25"
>> >> floppy drive. I don't recommend using a HD 5.25" drives due to the
>> narrower
>> >> head width even though they will write at DD speeds/track positions
>> since
>> >> it makes for trickier tracking, but it is possible to use those as
>> well.
>> >> The reason too for using an older computer is that newer ones don't
>> have
>> >> disk controllers in them that support Double Density disk formats
>> very
>> >> well. There is a program floating around called 22DISK that is
>> excellent
>> >> for transferring ADAM CP/M disk formats. Otherwise, for regular ADAM
>> disk
>> >> media you can use the utilities on Marcel de Kogel's ADAMem
>> distribution
>> >> site (the DCOPY and CONVDISK programs). DCOPY is what I used to
>> transfer my
>> >> collection onto the PC since everything I have now is single sided.
>> In
>> >> Linux you can use the dd command.
>> >>
>> >> Tapes are little trickier unless you have a disk drive capable of
>> doing
>> >> double sided or a 3.5" drive. The reason for this is because digital
>> data
>> >> pack images are 256k in size and a standard single sided, double
>> density
>> >> disk can only do 160kb. Once you get a DDP image file onto the disk
>> there
>> >> is a utility in CP/M or TDOS which will let you write a disk/tape
>> image
>> >> back to the original media (I think it's called clone21, but someone
>> can
>> >> check me on that).
>> >>
>> >>
>> >>
>> >> ------------------------------
>> >> *From:* Kevin Powers <kjpmail at gmail.com>
>> >> *To:* coladam at adamcon.org
>> >> *Sent:* Fri, August 3, 2012 9:14:14 AM
>> >> *Subject:* [Coladam] Transferring ADAM tape/disk images to physical
>> media
>> >>
>> >> Is it possible to transfer an ADAM tape (or disk) image to physical
>> media?
>> >> How is this done?? I'm familiar with the process on the Apple II, but
>> are
>> >> there transfer programs (similar to ADTPro on the Apple II) and
>> serial
>> >> connectors (similar to the Super Serial Card on the Apple II)
>> available
>> >> for
>> >> the ADAM?
>> >> _______________________________________________
>> >> Coladam mailing list
>> >> Coladam at adamcon.org
>> >> http://adamcon.org/cgi-bin/mailman/listinfo/coladam
>> >>
>> >
>> >
>> _______________________________________________
>> Coladam mailing list
>> Coladam at adamcon.org
>> http://adamcon.org/cgi-bin/mailman/listinfo/coladam
>
> _______________________________________________
> Coladam mailing list
> Coladam at adamcon.org
> http://adamcon.org/cgi-bin/mailman/listinfo/coladam
>
_______________________________________________
Coladam mailing list
Coladam at adamcon.org
http://adamcon.org/cgi-bin/mailman/listinfo/coladam

------------------------------

Message: 2
Date: Mon, 6 Aug 2012 07:16:21 -0700 (PDT)
From: Dale Wick <dmwick at yahoo.com>
Subject: Re: [Coladam] Transferring ADAM tape/disk images to physical
media
To: John Turner <gimechip at live.com>, "kjpmail at gmail.com"
<kjpmail at gmail.com>, "coladam at adamcon.org" <coladam at adamcon.org>
Message-ID:
<1344262581.50321.YahooMailNeo at web88508.mail.bf1.yahoo.com>
Content-Type: text/plain; charset=iso-8859-1

There were plans done by?a few people (in newsletters)?for converting the AdamLink modem into a fixed speed 9600 baud serial port, so that is certainly within reach.
?
Dale


________________________________
From: John Turner <gimechip at live.com>
To: kjpmail at gmail.com; coladam at adamcon.org 
Sent: Friday, August 3, 2012 12:14:44 PM
Subject: Re: [Coladam] Transferring ADAM tape/disk images to physical media


Did the adamlink modem use an UART or ACIA chip connected to a single chip 300 Baud modem? The TRS-80 CoCo Direct Connect Modem Pak was such a beast and I took the modem chip out and added level converters and turned it into a serial port (based on information from Marty Goodman). If the Adamlink modem is designed like that it could theoretically be converted into a serial port.

> Date: Fri, 3 Aug 2012 11:37:41 -0400
> From: kjpmail at gmail.com
> To: oltmansg at bellsouth.net
> CC: coladam at adamcon.org
> Subject: Re: [Coladam] Transferring ADAM tape/disk images to physical media
> 
> How do you get a serial port on the ADAM?
> 
> 
> On Fri, Aug 3, 2012 at 11:30 AM, geoffrey oltmans <oltmansg at bellsouth.net>wrote:
> 
> > ah yes... you can definitely do it over a serial connection if you have
> > access to a serial port on the ADAM. I've used MEX or IMP in TDOS for
> > this... I've only ever done it using a DDP as temporary storage for the
> > image before transferring to disk, or a hard disk. Someone else might have
> > another approach that works as well.
> >
> > ------------------------------
> > *From:* Kevin Powers <kjpmail at gmail.com>
> > *To:* geoffrey oltmans <oltmansg at bellsouth.net>
> > *Cc:* coladam at adamcon.org
> > *Sent:* Fri, August 3, 2012 10:22:44 AM
> > *Subject:* Re: [Coladam] Transferring ADAM tape/disk images to physical
> > media
> >
> > No means of accomplishing this over a serial connection?
> >
> >
> > On Fri, Aug 3, 2012 at 11:11 AM, geoffrey oltmans <oltmansg at bellsouth.net>wrote:
> >
> >> Disks are relatively easy, provided you have an old MS-DOS or linux PC
> >> laying around (286-486 machine is perfect) with a double density 5.25"
> >> floppy drive. I don't recommend using a HD 5.25" drives due to the narrower
> >> head width even though they will write at DD speeds/track positions since
> >> it makes for trickier tracking, but it is possible to use those as well.
> >> The reason too for using an older computer is that newer ones don't have
> >> disk controllers in them that support Double Density disk formats very
> >> well. There is a program floating around called 22DISK that is excellent
> >> for transferring ADAM CP/M disk formats. Otherwise, for regular ADAM disk
> >> media you can use the utilities on Marcel de Kogel's ADAMem distribution
> >> site (the DCOPY and CONVDISK programs). DCOPY is what I used to transfer my
> >> collection onto the PC since everything I have now is single sided. In
> >> Linux you can use the dd command.
> >>
> >> Tapes are little trickier unless you have a disk drive capable of doing
> >> double sided or a 3.5" drive. The reason for this is because digital data
> >> pack images are 256k in size and a standard single sided, double density
> >> disk can only do 160kb. Once you get a DDP image file onto the disk there
> >> is a utility in CP/M or TDOS which will let you write a disk/tape image
> >> back to the original media (I think it's called clone21, but someone can
> >> check me on that).
> >>
> >>
> >>
> >> ------------------------------
> >> *From:* Kevin Powers <kjpmail at gmail.com>
> >> *To:* coladam at adamcon.org
> >> *Sent:* Fri, August 3, 2012 9:14:14 AM
> >> *Subject:* [Coladam] Transferring ADAM tape/disk images to physical media
> >>
> >> Is it possible to transfer an ADAM tape (or disk) image to physical media?
> >> How is this done?? I'm familiar with the process on the Apple II, but are
> >> there transfer programs (similar to ADTPro on the Apple II) and serial
> >> connectors (similar to the Super Serial Card on the Apple II) available
> >> for
> >> the ADAM?
> >> _______________________________________________
> >> Coladam mailing list
> >> Coladam at adamcon.org
> >> http://adamcon.org/cgi-bin/mailman/listinfo/coladam
> >>
> >
> >
> _______________________________________________
> Coladam mailing list
> Coladam at adamcon.org
> http://adamcon.org/cgi-bin/mailman/listinfo/coladam
??? ??? ??? ? ??? ??? ? 
_______________________________________________
Coladam mailing list
Coladam at adamcon.org
http://adamcon.org/cgi-bin/mailman/listinfo/coladam

------------------------------

Message: 3
Date: Mon, 6 Aug 2012 07:27:39 -0700 (PDT)
From: Dale Wick <dmwick at yahoo.com>
Subject: Re: [Coladam] RCA v. coax v. ADAM
To: John Turner <gimechip at live.com>, "oltmansg at gmail.com"
<oltmansg at gmail.com>, "jnoti2 at comcast.net" <jnoti2 at comcast.net>
Cc: "kjpmail at gmail.com" <kjpmail at gmail.com>, "coladam at adamcon.org"
<coladam at adamcon.org>
Message-ID:
<1344263259.64638.YahooMailNeo at web88503.mail.bf1.yahoo.com>
Content-Type: text/plain; charset=iso-8859-1

Yeah, that is correct.? You have to buy the cable, then take it apart, and rewire it to get the video and audio out successfully.? I've done it to several commodore cables for people in my users group back when that was active.
?
I've actually lost all of my cables like that, and I have it on my todo list to make a new one with a 5 pin din connector, which are pretty easy to get. Even Radio Shack usually kept them in stock.
?
Dale


________________________________
From: John Turner <gimechip at live.com>
To: oltmansg at gmail.com; jnoti2 at comcast.net 
Cc: kjpmail at gmail.com; coladam at adamcon.org 
Sent: Friday, August 3, 2012 12:53:40 AM
Subject: Re: [Coladam] RCA v. coax v. ADAM



Geoff,
I have been looking at my pinouts collection :-)
It looks to me that you are correct - the audio lead on a commodore cable would carry the Adam video signal. But, unless I've glanced at it wrong, it doesn't appear that you could get any audio signal from using a commodore cable with the Adam.
Adam pinout would be:
1=audio,2=gnd,3=composite video, pin4=gnd, pin 5-7=nc
commodore pinout:
1=+6v (+12v on the TI-99/4a)
2=gnd
3=audio
4=video low (this is the video common to the vic-20/c64,etc)
5=video high

so a commodore cable would send the adam video out on the audio lead of the commodore cable and the adam audio to nowhere.

can anyone verify this?

BTW: you can get a commodore cable here:
http://www.quickerbuy.com/products/commodore-64-128-vic-20-monitor-cable-av-av-cable-984552209


> Subject: Re: [Coladam] RCA v. coax v. ADAM
> From: oltmansg at gmail.com
> Date: Thu, 2 Aug 2012 21:57:06 -0500
> CC: gimechip at live.com; kjpmail at gmail.com; coladam at adamcon.org
> To: jnoti2 at comcast.net
> 
> If memory serves, you can use a C-64 compatible cable as you said, but I think that perhaps the audio and video outputs are swapped around. If it worked on the C-64 or TI and not on the ADAM, try swapping the audio/video and see if it works.
> 
> 
> On Aug 2, 2012, at 8:30 PM, Jim Notini wrote:
> 
> > BITD I had a C=64 and ADAM that shared the same Composite Monitor thru the use of a 5-Pin Commodore Monitor Cable. I saw the Coleco version in stores, but never bought it seeing as I had a working cable already... now being a collector, I wish I had the Coleco cable in it's original Blister package and not the plastic bag version that I think was packaged by American Design Components from all the surplus stock they bought from Coleco.
> > 
> > Thanks for the info. re the TI-99/4A cable compatibility as I was planning to pick up a spare cable just in case and I can check/compare prices for one of those as well.
> > 
> > Thankfully most companies didn't try to reinvent the wheel, too much, back in the day so instances of cross compatibility do exist... it's just a matter of trying things out.
> > 
> >? ----- Original Message ----- 
> >? From: John Turner 
> >? To: jnoti2 at comcast.net ; kjpmail at gmail.com ; coladam at adamcon.org 
> >? Sent: Thursday, August 02, 2012 6:01 PM
> >? Subject: RE: [Coladam] RCA v. coax v. ADAM
> > 
> > 
> >? I was wondering if the commodore cable could be used, but my coleco manual said "if it doesn't say it was made for the Adam it probably won't work", but since you've tried it then I guess it will. The 5 pin DIN was sort of a pseudo standard that started, as far as I can remember, with the Vic-20. The same 5-pin cable that works with Vic-20, C-64, etc. will also work with the NTSC version of the TI-99/4A (the PAL TI-99/4A uses a different cable). So basically then, a commodore 5-pin DIN or a TI-99/4A NTSC 5-pin DIN a/v cable should all work.
> > 
> > 
> >> From: jnoti2 at comcast.net
> >> To: kjpmail at gmail.com; coladam at adamcon.org
> >> Date: Thu, 2 Aug 2012 17:43:45 -0500
> >> Subject: Re: [Coladam] RCA v. coax v. ADAM
> >> 
> >> If you have the Stand-Alone ADAM (with the ColecoVision built-in) all you 
> >> need to do to use this version of the ADAM with a Composite TV or Monitor is 
> >> buy a Commodore 1802 Monitor compatible monitor cable... they can be had on 
> >> eBay for around $7-$10. This particular cable has a 5-pin DIN connector that 
> >> plugs into the "AUX VIDEO" connector on the back of the ADAM and either a 
> >> black or yellow RCA Plug that connects to the composite video input of the 
> >> TV/Monitor. This Commodore cable usually only provides one RCA Audio Jack 
> >> that you would plug into the White Audio RCA Input of the TV/Monitor. You 
> >> may get lucky and find a cable that provides 2 Audio RCA lines, but I 
> >> haven't seen one in a while. BTW, Coleco states you need a 7-Pin DIN type 
> >> connector, but the 5-Pin DIN works perfectly.
> >> 
> >> JUST MAKE SURE NOT TO BUY A COMMODORE MONITOR CABLE THAT SAYS IT'S 
> >> CHROMA/LUMA COMPATIBLE! It won't work.
> >> 
> >> You can also plus a Composite Video cable into the MONITOR connector on the 
> >> back of the ADAM and then plug the other end into the Composire Video Input 
> >> of the TV/Monitor. This will only provide VIDEO and you would have to find a 
> >> 5-Pin or 7-Pin DIN to 1 or 2 RCA AUDIO ONLY Cable. This is the method that 
> >> Coleco details in their instructions, but is a waste seeing as the first 
> >> method I detailed workd great.
> >> 
> >> 
> >> Jim/NIAD
> >> 
> >> ----- Original Message ----- 
> >> From: "Kevin Powers" <kjpmail at gmail.com>
> >> To: <coladam at adamcon.org>
> >> Sent: Thursday, August 02, 2012 10:13 AM
> >> Subject: [Coladam] RCA v. coax v. ADAM
> >> 
> >> 
> >>> What are the connections from the ADAM to the TV/monitor? When I get my
> >>> ADAM, I would like to connect via RCA cables, i.e., 1 composite RCA
> >>> connection for the video & 1 or 2 composite connections for the mono
> >>> audio. But my understanding is that in order to do this, I would need to
> >>> have a special cable that plugs into a 5-pin port in the back of the ADAM.
> >>> 
> >>> Is it possible to plug two RCA cables into the ADAM, plug them into the 
> >>> TV,
> >>> and be done? Or am I going to be stuck using the same coaxial jack that I
> >>> use to plug a cable box or most video game systems without
> >>> composite-out into my TV?
> >>> _______________________________________________
> >>> Coladam mailing list
> >>> Coladam at adamcon.org
> >>> http://adamcon.org/cgi-bin/mailman/listinfo/coladam
> >>> 
> >> 
> >> 
> >> _______________________________________________
> >> Coladam mailing list
> >> Coladam at adamcon.org
> >> http://adamcon.org/cgi-bin/mailman/listinfo/coladam
> > _______________________________________________
> > Coladam mailing list
> > Coladam at adamcon.org
> > http://adamcon.org/cgi-bin/mailman/listinfo/coladam
> 
??? ??? ??? ? ??? ??? ? 
_______________________________________________
Coladam mailing list
Coladam at adamcon.org
http://adamcon.org/cgi-bin/mailman/listinfo/coladam

------------------------------

Message: 4
Date: Mon, 6 Aug 2012 10:15:38 -0500
From: John Turner <gimechip at live.com>
Subject: Re: [Coladam] Official list of allocated Coleco Adam i/o
ports
To: <dmwick at yahoo.com>, <coladam at adamcon.org>
Message-ID: <BAY169-W138207FEA7589C96422C9C2B7CF0 at phx.gbl>
Content-Type: text/plain; charset="iso-8859-1"


Thanks for this Dale. Having this information will allow me to make the things I design compatible with existing drivers. Do you have the pinout of Adam Expansion Slot #2? I have managed to decipher the Slot #1 and Slot #3 pinouts and have created an EAGLE Library for those two, but I need Slot #2 to make the library complete. -John

> Date: Mon, 6 Aug 2012 06:31:31 -0700
> From: dmwick at yahoo.com
> To: coladam at adamcon.org
> Subject: [Coladam] Official list of allocated Coleco Adam i/o ports
> 
>                     #
> 
> 
>                        Detailed Coleco ADAM Computer I/O Address Map
> 
> Port #    Device                        Input                    Output
> __________________________________________________________________________________________
> 
> 00        Powermate SASI Hard Drive     Input Data               Output Data
> 01        Powermate SASI Hard Drive     Status Register          Command Register
> 01        MIB2 RESET line               * Not Used on MIB2 *     Bit 3 = 1 for MIB2 RESET
> 01        Powermate IDE Hard Drive      Error Register           * Not Used on IDE HD *
> 02        Powermate IDE Hard Drive      Sector Count Register    Sector Count Register
> 03        Powermate IDE Hard Drive      Sector Number Register   Sector Number Register
> 04        Powermate IDE Hard Drive      Cylinder Low Register    Cylinder Low Register
> 05        Powermate IDE Hard Drive      Cylinder High Register   Cylinder High Register
> 06        Powermate IDE Hard Drive      SDH Register             SDH Register
> 07        Powermate IDE Hard Drive      Status Register          Command Register
> 08        Bonafide Sys MIDI Interface
> 09        Bonafide Sys MIDI Interface
> 0A        Bonafide Sys MIDI Interface
> 0B        Bonafide Sys MIDI Interface
> 0C        Bonafide Sys MIDI Interface
> 0D        Bonafide Sys MIDI Interface
> 0E        Bonafide Sys MIDI Interface
> 0F        Bonafide Sys MIDI Interface
> 10        Powermate Serial ports        Mode Register A          Mode Register A
> 11        Powermate Serial ports        Status Register A        Clock Select Reg A
> 12        Powermate Serial ports        * DO NOT USE *           Command Register A
> 13        Powermate Serial ports        RX Holding Register A    TX Holding Reg A
> 14        Powermate Serial ports        Input Port Change Reg    Aux Control Register
> 15        Powermate Serial ports        Interrupt Status Reg     Interrupt Mask Reg
> 16        Powermate Serial ports        Read Counter Upper       Set C/T Upper Register
> 17        Powermate Serial ports        Read Counter Lower       Set C/T Lower Register
> 18        Powermate Serial ports        Mode Register B          Mode Register B
> 19        Powermate Serial ports        Status Register B        Clock Select Reg B
> 1A        Powermate Serial ports        * DO NOT USE *           Command Register B
> 1B        Powermate Serial ports        RX Holding Register B    TX Holding Register B
> 1C        Powermate Serial ports        * Reserved (note 5) *    MIB3 Serial Port RESET
> 1D        Powermate Serial ports        Read Input Port Bits     Output Port Config Reg
> 1E        Coleco AutoDialer             ??                       ??
> 1E        Powermate Serial ports        Start Counter Cmd Port   Set Output Port Bits
> 1F        Powermate Serial ports        Stop Counter Cmd Port    Reset Output Port Bits
> 20-3F     AdamNet Reset                 Input MAY be available   Output is NOT available
> 40        Parallel Printer interface    Printer status           Output Data
> 41        May be unused (see note 1)    Input may NOT be avail   Output MAY be available
> 42        Expansion Memory              * Not Used *             Bank Number
> 43        May be unused (see note 1)    Input may NOT be avail   Output MAY be available
> 44-47     Eve/Orphanware Serial Port
> 48-4B     Eve Speech Synth/Clock Card
> 4C-4F     Orphanware Serial Port 2      (Standard Eve 80 column terminal ports)
> 4F        Coleco Steering controller    (Listed in Hackers guide as Expansion conn #2)
> 50-53     *** Unused ***
> 54-57     Orphanware Serial Port 3      (Standard Orphanware 80 column terminal ports)
> 58        Powermate IDE Hard Disk       Input Data Lower 8 bits  Output Data Lower 8 bits
> 59        Powermate IDE Hard Disk       Input Data Upper 8 bits  Output Data Upper 8 bits
> 5A        Powermate IDE Hard Disk       Alternate Status Reg     Fixed Disk Control Reg
> 5B        Powermate IDE Hard Disk       Digital Input Register   ** Not Used by IDE HD **
> 5C-5F     Orphanware Serial Port 4
> 5E        Adamlink Modem                Input Data               Output Data
> 5F        Adamlink Modem                Status                   Control
> 60-7F     Memory Bank Switch Port       Input MAY be available   Output is NOT available
> 80-8F     *** Unused ***                (see note 2)             STA (?)
> 90-9F     Orphanware Hard Drive                                  STA (?)
> A0-BF     Video Display Processor
> C0        Strobe Reset                                           STB (?)
> C1-DF     *** Unused ***                (see note 2)             STB (?)
> EO-FF     Sound Chip (Out only)
> FC        Joystick #1 (In only)
> FE        Joystick #2 (In only)
> 
> 
> Notes:
> 
> 1)   Port 41 or port 43 is used by the Eve 80 column unit as a keyboard input port.
> 2)   Not useable from expansion card slots (can't read or write data to or from ports) - 
>      may be available on side port.
> 3)   Powermate IDE hard disk drive will not interfere with Powermate serial ports.
> 4)   Powermate serial ports will probably interfere with autodialer.
> 5)   Reserved ports in Powermate serial port map:  Input ports 12 and 1A - screw up serial 
>      ports if used; Input port 1C doesn't bother anything but the 2681 drives the bus; 
> 6)   Orphanware serial port number 4 probably interferes with the ADAMlink modem.
>      7)   According to my analysis of circuit U6 in the ADAM computer, all of upper I/O address 
>      space is decoded (by an LS138).  However, not all outputs appear to be used.  The 
>      circuit description follows.  Please correct any misassumptions I've made.  Note that 
>      if my analysis is correct, then the Orphanware hard disk should be interfering with 
>      the signal STA\ (which is associated with the joysticks in some way).
> 
> 
> 
>                       U6
>                     74LS138             A6   A5   WR\
>                |--------------|
>    WR\    -----|A           Y0|o----    0    0    0    80-9F Write    (STA\)
>                |              |
>     A5    -----|B           Y1|o----    0    0    1    80-9F Read     (Not Used)
>                |              |
>     A6    -----|C           Y2|o----    0    1    0    A0-BF Write    (VDP CSW\)
>                |              |
>     A7    -----|G1          Y3|o----    0    1    1    A0-BF Read     (VDP CSR\)
>                |              |
> IORQ\    ----o|G2A         Y4|o----    1    0    0    C0-DF Write    (STB\)
>                |              |
> WAIT\    ----o|G2B         Y5|o----    1    0    1    C0-DF Read     (Not Used)
>                |              |
>                |            Y6|o----    1    1    0    E0-FF Write    (Sound CE\)
>                |              |
>                |            Y7|o----    1    1    1    E0-FF Read     (Joystick Enables)
>                |--------------|
> 
> Conventions:
> 
> 1)   The "o" symbol next to an input or an output implies that the pin requires an active 
>      low signal.
> 2)   The "\" symbol following a signal mnemonic indicates that the signal is active low.
> 
> 
> Rev. 3
> 8/30/92
> Mark Gordon
> _______________________________________________
> Coladam mailing list
> Coladam at adamcon.org
> http://adamcon.org/cgi-bin/mailman/listinfo/coladam
    

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