sk.When
I find a bug using the PDP-11 running RT11
or the Vax running VMS makes it really easy to dissect the code without
worry of it escaping.
For those times I wish to visit a site that is flagged as dropping
malware using an expendable virtual machine
(copy of one) has proven both safe and handy.
Allison
t by DEC) but the software to use
it is a project.
FYI I have never heard of any one recreating the RQDX1/2/3 software
protocol MSCP
as it was nontrivial, proprietary, and copyrighted.
Allison
On 10/22/16 6:05 PM, Toby Thain wrote:
On 2016-10-22 4:08 PM, allison wrote:
...
FYI I have never heard of any one recreating the RQDX1/2/3 software
protocol MSCP
as it was nontrivial, proprietary, and copyrighted.
It's been implemented in simh, afaik. Its reputation is a little
On 10/24/16 8:51 AM, Paul Koning wrote:
On Oct 24, 2016, at 7:39 AM, allison wrote:
On 10/22/16 6:05 PM, Toby Thain wrote:
On 2016-10-22 4:08 PM, allison wrote:
...
FYI I have never heard of any one recreating the RQDX1/2/3 software
protocol MSCP
as it was nontrivial, proprietary, and
LS241 or LS241 have hysteris on
the inputs and are
a good match to acceptable bus voltages. I believe there are CMOS
equivilents for that
as well. I've used the bipolar LS TTL parts rather than CMOS as they
have immunity to
latchup and are somewhat more resistant to ESD.
Allison
Andrea
ld is supposed to stop if not met. The
LSI-11 bus (qbus)
was actually harder as it was 120 ohm terminated and HeathKit did it
with common TTL
and the CPU was DEC standard LSI-11 and it worked out to 18 slot backplanes.
Allison
On 10/25/2016 02:35 AM, ben wrote:
> On 10/24/2016 2:18 PM, David Bridgham wrote:
>> On 10/24/2016 01:37 PM, allison wrote:
>>
>>> The voltages are based on TTL levels. What are the unique voltages?
>>
>> The QBUS spec from the 1979 Bus Handbook (the Unibus
On 10/25/16 10:02 AM, Guy Sotomayor Jr wrote:
On Oct 24, 2016, at 11:35 PM, ben wrote:
On 10/24/2016 2:18 PM, David Bridgham wrote:
On 10/24/2016 01:37 PM, allison wrote:
The voltages are based on TTL levels. What are the unique voltages?
The QBUS spec from the 1979 Bus Handbook (the
On 10/25/16 12:10 PM, Guy Sotomayor Jr wrote:
On Oct 25, 2016, at 8:38 AM, allison wrote:
On 10/25/16 10:02 AM, Guy Sotomayor Jr wrote:
On Oct 24, 2016, at 11:35 PM, ben wrote:
On 10/24/2016 2:18 PM, David Bridgham wrote:
On 10/24/2016 01:37 PM, allison wrote:
The voltages are based on
On 10/25/2016 04:24 PM, Guy Sotomayor Jr wrote:
>> On Oct 25, 2016, at 12:40 PM, allison wrote:
>>> Also, I think in a previous email you mentioned that the UNIBUS is 240ohm.
>>> It’s not.
>>> It’s 120ohm.
>> My book says no. Qbus is for sure 120.
>&
On 10/30/2016 04:01 AM, emanuel stiebler wrote:
> On 2016-10-29 09:21, allison wrote:
>> On 10/29/2016 09:55 AM, emanuel stiebler wrote:
>>> Was there a version of kermit for CP/M ?
>> yes and there were more than a few modem/terminal programs.
>
> for CP/M 68K?
>
On 10/30/2016 08:56 AM, william degnan wrote:
> On Oct 30, 2016 8:48 AM, "allison" wrote:
>> On 10/30/2016 04:01 AM, emanuel stiebler wrote:
>>> On 2016-10-29 09:21, allison wrote:
>>>> On 10/29/2016 09:55 AM, emanuel stiebler wrote:
>>>>>
ave two spaces front panel code space and normal PDP-8 memory.
Allison
> It is IBM 3740 table of contents information.
> GA21-9182-5_Diskette_General_Information_Manual_Jul80.pdf for the details
>
>
>
>
the whole disk space (CP/M, DOS for PCs to
name a few).
Then it requires digging into the hard/software to do low level reads
without error checking or despite it.
For many that goes to a level well beyond trivial.
Allison
All,
Looking for the schematic for Intel PROMPT-475, this is the 8755 adapter
board for the Prompt-48.
Allison
rly simple. The
Intel schematic is helpful in it saves
me time I may end of designing it myself.
Dwight
From: cctech on behalf of allison
Sent: Wednesday, November 2, 2016 5:35:08 AM
To: cctech@classiccmp.org
Subject: Looking for Prompt-475
All,
Looki
lthough, I wasn't suppose to, I had a dump
of the ROMs to compare with.
We were our own last customer to order 4001s.
;) Yes knowing how and doing was sometimes important to know it it even
worked!
That and some of the micros and such had some very strange things to be done
to pump them.
good.
Allison
On 11/04/2016 09:19 AM, Sam O'nella wrote:
> Out of curiosity and ignorance what's with the solder joints on the cards in
> the pictures? That orange color seems like it's everywhere around cold
> looking solder joints. Is that rust, some sort or pro
I ahve and can't find the manual for a:
Digital research computer S100 EPROM Programmer
Any info might help. Specific info needed is schematic and headers for
various Eproms.
Allison
S100 board with about 18 ICs and 6 voltage
regulators.
If I'm doing that I'll start from scratch.
Info about the bitblaster is of no use.
Allison
On 11/06/2016 11:41 PM, dwight wrote:
> Most of these boards only do one or two types of eproms.
>
> I have a bit blaster that on
th uVAX-II). The latter
BA123 is preferred as
there is far more power and space for cards and media drives as well as
room for cables.
Allison
n a par with other S100 8080 systems for size and weight.
Allison
rly 70s were around
12-14$ each in small volumes (24-48).
By the mid 1975s they had dropped to a buck or so as there were faster
and denser parts. But then the first 2102s
cost me about 14$ in early 74 so that was the way it was.
Allison
refresh (internal).
Nominally the R register is a counter that increments from any value to
7bit overflow.
I believe most emulators actually do that. Check MyZ80 Simon Crans work
(32bit
dos/ pre-7-winders only or in a 32bit sim/VM).
Either that or lookup and assemble Grant Searle's low chip count Z80 system.
Allison
and the like is was enough. IT was used in one app I'd seen
as a cycle
counter as part of a debugger since it increments each M1 (instruction
fetch) cycle.
FYI later Z80 variants like 64180, Z180, Z280 that register was at least
8 bit
incrementing. I've designed around them all.
Allison
more names than all the rest.
That of course is MY US centric view other countries had theirs too.
Almost all of the system naming of the day for the intel based systems
and heirs
(8080/8085/Z80/8088/8086) was irrational, illogical, and often just
plain bad.
Allison
that was on the front end of the TRS80 it went from Zero to
60 in '77 as the first deliveries were a batch of
1000 then 5000 to the stores. they sold very fast far faster than
expected. Indeed the first 12 months had a very steep
curve.
Most number and data I see to day in the popular media is just plain wrong.
Allison
a few years getting to that
point both in capability, aps, and cost.
To my experience The PC did not displace existing Apples][ and CP/M
until its cost and advantage was well
established as people already had sunk cost and functional aps. For
those that were new to it all the PC was
the TRS80 warts, incompatibility, and all and thats why I felt the PC
was a long step backward until the 286
and 386 appeared. The PC world to me by then was moribund as it was not
better and I had 16 and 32bit
machines that were both faster and better. I was a late adopter of PC
as it was compatibility with the
ecosystem that forced it as PDP11 and VAX was still better and
functional until IP based networking
was important in the late 90s.
Allison
>
> --
> Grumpy Ol' Fred ci...@xenosoft.com
>
PUs around in that era. They all can run all of
the base aps but some
products were Z80 (or 180 or 280 or NSC800) only. However many of the
aps like MS Basic,
Multiplan, DBASE, Vedit, and BDS-C could run on 8080 but knew how to use
the z80. This is part
of why it was not unusual to see some CPM systems still in commercial
use in the early 90s.
Allison
ds, and bells and whistles. Its no
small comment that
in that time frame the big mags like BYTE, Kilobaud, and Interface Age
were setting those
expectations.
Oddly games had variations of the above but expectations were also
higher and things
like better graphics, color and complex sound were important. Oddly
they had the same
limitations and dependencies that were being address with CPU speed and
a need for
more bits.
Looking back it was not so much the good old days as they days of chaos,
innovations and new and
watching what would stick to the wall.
Allison
r Vt340, or the VT1200 as I
have those.
The most reachable is the VT320 (on my CP/M system) and VT340
(PDP-11/73). They get
used as they are smaller than the VT100s I have.
Allison
petrol extracts
without additives.
These days if you see it its for camp stoves and lights and not cheap.
Of course, anyone with distillation equipment could distil any of these
to get something with less residue. But not everyone has chem-lab
glassware.
Or the temperature controls to not re
<
On 01/06/2017 07:32 AM, David Bridgham wrote:
> On 01/05/2017 08:13 PM, allison wrote:
>
>> Lots of ifs, mights, and maybes. My knowledge is from actually owning
>> and maintaining a Cessna since 1979 and so far that has not been an issue.
> Yup, that's just how the
ce (6700) 16bit, and core machine my contact
with it was 1974. I'd be hard pressed to prove they existed.
Allison
ht a few minutes by hand can
discover
that. Done that way 9 characters fit in 8 bytes.
Another allocation scheme is one page per track, about 1200-1500 bytes,
or about 35 pages for a 35track floppy. So each tack is a page and the
file
header has the page name and a linked list to the next.
There are more ways to organize a disk than Carter has liver pills.
Allison
>
> --Chuck
>
On 01/10/2017 09:50 PM, allison wrote:
> On 01/10/2017 05:09 PM, Andy Cloud wrote:
>> Hi Everyone!
>>
>> I thought this would be an interesting question to ask around - What's the
>> rarest or most unusual computer-related item do you own?
>>
>&
ample as it all fits in a 2K Eprom and only 256 bytes of ram.
Allison
On 01/22/2017 02:46 PM, Chuck Guzis wrote:
> On 01/22/2017 10:57 AM, allison wrote:
>> I don't know about most people but this solution has been around for
>> decades.
>>
>> I locate the battery on the failed part with a small magnet, then
>> grind the ep
not
permit anything else.
OK too makes a good simple hand tool and more elaborate ones as needed.
Its worth the
tool even if you go with the simple hand tool that looks sorta like a
screwdriver.
Keep in mind with Qbus unless you insert grant cards you can't double
space boards.
I only have 8 Qbus systems from LSI-11 through MicroVAX.
Allison
ound.
The EY-0105e may be a document (spec or drawing).
Allison
On 2/23/17 3:23 AM, Pontus Pihlgren wrote:
On Wed, Feb 22, 2017 at 02:18:50PM -0500, allison wrote:
The sound (not music) card was actually a internally built and not sold
(that I know of).
There must have been a few though, since several claim to have one and
it even showed up on ebay.
(I&#
On 2/23/17 11:16 AM, Bill Gunshannon wrote:
From: cctech [cctech-boun...@classiccmp.org] on behalf of allison
[ajp...@verizon.net]
Sent: Thursday, February 23, 2017 11:04 AM
To: cctech@classiccmp.org
Subject: Re: story of Mel
On 2/23/17 3:23 AM, Pontus
On 2/23/17 11:16 AM, Bill Gunshannon wrote:
From: cctech [cctech-boun...@classiccmp.org] on behalf of allison
[ajp...@verizon.net]
Sent: Thursday, February 23, 2017 11:04 AM
To: cctech@classiccmp.org
Subject: Re: story of Mel
On 2/23/17 3:23 AM, Pontus
driver.
There was at least one company that used a floppy drive (360K 5.25 or
720K for two sided) with a TU58 emulation
that was somewhat faster than tape due to faster seeks to a block.
Allison
> Thanks,
> Jonathan
>
y getting
fiducial marks on the board so it can locate and position without
optical works.
One time the board designer messed up and we had to use existing fixed
points
for that. PITA but it worked. After that I got into the board layout
bit and DFM.
Allison
On 03/31/2017 02:00 PM, Paul Koning wrote:
>> On Mar 31, 2017, at 1:51 PM, allison via cctech
>> wrote:
>>
>> On 03/31/2017 06:32 AM, David Griffith via cctalk wrote:
>>>> I'm down to the last few P112 boards for sale and am pondering
>>>>
t...
>>
>> Thanks in advance,
>> Pontus.
>>
>>
> I would go for distilled water, tap water could have chlorine it it.
The amount of chlorine (or its analog) is not a enough to be a factor.
If you can drink it and its not pool water.
Allison
> Ben.
>
a couple hundred boards before we caught
the problem.
Ouch!
Plastics and elastic materials require more care for compatibility.
Water is usually the safest but, none can remain.
Allison
enerator
and its a good performer.
Not up to the standards of a R&S FSH6 but about 1/15th the price.
Allison
ith RX02 (or DSD880) or a catsweasel.
I know this as I have the former.
Allison
> This command may be useful when the drive types stored in CMOS
> RAM are incorrect for some reason. It's also helpful when an 8"
> drive, or a real DEC RX50 drive, has
; Chuck's suggestion would require that somebody who has a
> flux-transition device (Catweasel, Kryoflux, Central Point Option
> board, etc.) would have to do the sector imaging.
>
> Well, or, . . .
> somebody who has an RX02 setup, such as you or Allison, could image
> the sect
controller life is easier as the DISK controller carries the boot code.
bitsavers has manuals.
If one has the sorurce for bios building a bootable disk is not terrible
to do
by hand. In that case the existing disk may be at least partially useful
as CP/M (CCP and BDOS) is universal and only the bios is system specific.
Allison
Would be
> interesting to find one with memory, processor and console.
>
A complete system is usually cheaper than the random boards. I know I
have two sitting.
Allison
> Thanks
> jim
>
>
> Th
r that the machine
has one instruction
I did a Move machine and the whole word is source, destination and
options like jump if zero.
Tends to be very unique, can be fast and fairly simple since the
instruction cycle is fetch, do,
and repeat. That can also be used as a microcode engine for a more
conventional machine.
When you build its hand to not dream.
Allison
> Ben.
>
>
>
>
t;
I'll have to pull out the one I built in '75 as my first Altair non TTY
terminal.
Bet it still works and has the 64 char mod. The only issue was
stability of the
position adjustments. One shots for timing... still not a fan.
Allison
both are Z180 based.
He also had a 8052 (with basic in rom) and the MPX16.
Allison
ndors, wanting to
distinguish between expensive workstation-class drives and something
cheaper which could be associated with the lowly PC?
It was price... ATA-IDE was cheaper and PC industry was working hard to
push the price down.
SCSI always remained more costly.
Allison
cheers
Jules
drive with SCSI internal).
Memries of the first SASI/SCSI was 33 years ago for Me, and VAX SCSI was
1995 as that's when I got
the CMD controller.
Allison
Bill
On 10/2/17 10:13 AM, Jules Richardson via cctech wrote:
On 10/02/2017 08:29 AM, allison via cctech wrote:
On 10/2/17 8:22 AM, Jules Richardson via cctech wrote:
On 10/02/2017 01:46 AM, Alan Perry via cctech wrote:
There was a call to form the CAM (Common Access Method) Committee
of X3T9.2
/73 hardware. That and a boat load of
MicroVAX
systems. I limit my DEC systems to that scope for space mostly. THe
rest of the
hardware in the collection is CP/M based (S100, Kaypro, Ampro...).
So pick a DEC system that has interest and simulate it or all if you
have time.
Allison
128K swapping drum. OS was TOPS 10.
Really liked the machine and it was pretty to look at with the programmers
console. Favorite core location to watch was 150Q.
Allison
and over a dozen carts. Its still in use in a ITX box using the IDE
interface. After
two decades of use it seems solid.
Allison
populate it with period parts.
Very tempting to add yet another project to my list.
Allison
think mine is
>> still in storage somewhere.
>>
>>
>>
>> On Wed, Nov 22, 2017 at 4:54 PM, allison via cctech >
>> wrote:
>>
>>> On 11/21/2017 10:51 AM, Bill Gunshannon via cctech wrote:
>>>> Any interest in a Xerox 820 board that never had i
ariations.
Qbus board can be used in any system if they match the bus width (Q22
usually for uVAX) and
you pay attention to where you put them. This includes a lot of the
PDP-11 Qbus cards.
Allison
red a
manual push.
At first glance I though there were motor bearing issues but have verified
this is not so. If I force motor on and restrain it I has good torque
and no
dead spots. All signals in the motor control look good on the scope.
Any thoughts?
Allison
) VAX Cluster. Much fun and about 1400watts of heat.
Allison
On 1/21/2018 2:25 PM, Jules Richardson via cctech wrote:
So, I picked up (and I did just carry it into the house, and now I
hurt) a Microvax II from another list member yesterday. Cosmetically
it's a disaster (BA123 has a cracked t
On 01/23/2018 07:58 PM, Jules Richardson via cctech wrote:
> On 01/22/2018 02:05 PM, allison via cctech wrote:
>>
>>
>> On 1/22/18 2:18 PM, Douglas Taylor via cctech wrote:
>>> I can't believe you 'just carry it into the house' all by yourself,
>&g
head stuck will normally spin down. If the head does not
position there is no servo
so the motor control shuts the show down. The fix is pop the cover and
remove the offending goo that
was the bead bumper stop.
Allison
> 4x Seagate ST251 >4x OK 3x Seagete ST225 >3x OK 3x IBM Type 068 >3
the TK80A and the manual. Unfortunately
scanning the 100+ pages would be painful
an an old USB flatbed.
I also have one of the few auxiliary boards that had additional ram
sockets and power supply.
No its not for sale.
Allison
g this is not trivial and you are in full forensic sleuth mode.
Hope that helps.
Allison/KB1GMX
ot the cable from the PS to the Back plane.
Inspect the plugs for burnt
for signs of over heating.
There were two versions of the cable on had all the wires unequal length
to make the bend pretty,
the preferred one has all the wires equal size.
Allison
> Antonio
>
>
It was my understanding from using the 730 that there was limited
(really limited) microcode
enough to load the WCS as the tu58 was a serial device (standard tu58)
and the 730 had to
unpack and stuff the WCS. You need little to do that but far from even
PDP11 instruction set.
The Microcode was loaded was the "what made it a VAX stuff".
Allison
(max 4K).
Plan B' get a cpu card with rom on it.
NOTE: pins 20 and 70 are grounded so any card that uses those pins will
likely have to be modded.
(those are memory protect and unprotect for that era, IEEE 696
reassigned them).
Allison
d that used 2kx8 parts and
put an eprom (2716) in
the F000H space. Change the CPU boot address jumpers from E800/E900 to
F000h and now
you can talk to it via serial port.
The PCput and PCget are handy and no so big to hand insert.
Allison
also use USB flash as they seem solid though somewhat small if you
don't re-write
a lot. I have a few that are a mere 128K byte that are over a decade
old and still
going. However I am wary of widows systems as they tend to write a lot
of crap
on them besides the actual file. Linux is kinder to them.
Allison
Hampshire.
>
>
>
> paul
>
There were not many 785s, The largest population were in the mill and
ZK (Nashua NH faciltiy)
So I'd expect most of them are Ex-dec.
Allison
"Here, maybe you can
use it!".
Allison
nd D/CAS
as the interface.
I've never had any Mac hardware before the Macbook, or VME.
Allison
d layouts
> of both of these modules, so I can fabricate them myself if need be, but
> wanted to see if anyone had them handy first.
>
> Thank you again!
>
> Josh
The seed module is simple. The SM system with its driver, formatter,
and controller is a whole other thing.
I have two BPK-72s and they are interesting but 128Kb is not very big.
Allison
o have the drawing for the PRO-350, and read it. Reset
on the F11 chipset is generally part of
Pwr-OK and if reset is bouncing likely power is NOT ok.
FYI the 7201 is MPSC a dual multiprotocol serial chip not unlike the
Z80-SIO. Likely the system wide reset
is coming from the power OK generation as you seeing hardware reset into
the MPSC.
Hint: the pro350 is basically an 11/23 in a different form factor.
Allison
On 12/03/2018 03:34 PM, trtech thetrtech.com via cctech wrote:
> Looking for software especially rom code for both of these SBC boards.
Does google or other search engine work where you are...
First hit was: http://obsolescence.wixsite.com/obsolescence/the-n8vem-sbc
Allison
On 12/06/2018 07:28 AM, Liam Proven via cctech wrote:
> On Thu, 6 Dec 2018 at 12:44, Tony Duell wrote:
>> I don't think anyone is questioning that it's a workstation, and that it was
>> made by Sun.
>>
>> I think the problem is over 'first' and that a Sun-2 is not going to be the
>> 'first' model.
array for Omnibus
with battery back up that is fine. Don;t get wraped around the axle
about RMW as any sufficiently
fast ram can do that without wearout. And compared to core it doesn't
take much speed.
EEprom and Flash work fine for read mostly disks or disk simulators.
Allison
it. AC as well as it can help heat the room and
also power as in
makes the meter spin.
So much lathering and speculation about what and how. When the point is
totally missed.
Allison
On 12/16/2018 10:07 PM, ben via cctech wrote:
> On 12/16/2018 8:00 PM, allison via cctech wrote:
>
>> In the end, current generation CMOS ram is the easy out, battery is
>> small, cost is small, and
>> produces much less of the heat that is killer to systems. The only
torage problem such as replicating
a RF/DF32 multihead disk.
The cycle life is a limiting factor for things like swapping drums/disks
but for something that's
read mostly its ok.
Core is RAM, and not serial anyway.
Allison
the side.
One of the DEC history things about the era was often engineering went
may different
directions at the same time making for a plethora of systems that were
or mostly
PDP-8ish like the PDP-12 that was PDP-8 and LINK. RICM has a really
pretty one.
Allison
form by writing sequential
words (waveforms) to
the DAC. Before that it was done setting link and clearing link bit
with a timing routine.
There was a version of that also for MINC-11 and I've see variant back
when that used multiple
DAC cards for stereo or multiple voices.
It was also a thing for the S100 8080/z80 set (using a DAC) and many
other systems
(Kim-1, Apple, Cosmac, Commodore).
Of course everyone here forgets the First Philadelphia Computer Music
Festival on vinyl from '78
with samples of computer played music. I run my copy on occasion just
to remember being there.
Allison
On 01/03/2019 05:22 PM, Kyle Owen wrote:
> On Thu, Jan 3, 2019 at 3:29 PM allison via cctech
> mailto:cctech@classiccmp.org>> wrote:
>
> Those were likely with a PDP12 or LAB-8 with DAC board. The code
> actually is a roughly
> digital version of tones in 10 o
On 01/03/2019 11:15 PM, Kyle Owen wrote:
> On Thu, Jan 3, 2019, 17:48 allison <mailto:allisonporta...@gmail.com> wrote:
>
>> I don't think this album has been forgotten; I have a copy, and I
>> know others with copies, too. It seems as though "Unp
chine that might be scrapped. In itself thats
important
and it would be model independent.
Being a Qbus 11 collector there are still critters I might gather.
Allison
e able to get a file with all the
common tapes on it.
for loading into a 8 via a loader device.
I've not done this for PDP-8 or 11 but I can easily envision it. The
Arduinos are
often fast enough if not faster than the host so speed is not an issue.
Allison
On 04/28/2019 09:28 PM, Grant Taylor via cctech wrote:
> On 4/28/19 6:27 PM, Ray Jewhurst wrote:
>> I already have a Hobbyist License. I am just interested in
>> experimenting with different OSes and different versions of OSes.
>
> ACK
>
> I don't know what VAX hardware VMS 1.5 supported, what VAX
On 04/29/2019 09:41 AM, Paul Koning wrote:
>
>> On Apr 29, 2019, at 7:47 AM, allison via cctech
>> wrote:
>>
>> On 04/28/2019 09:28 PM, Grant Taylor via cctech wrote:
>>> On 4/28/19 6:27 PM, Ray Jewhurst wrote:
>>>> I already have a Hobbyist Lice
On 04/29/2019 11:37 AM, Jon Elson wrote:
> On 04/29/2019 06:47 AM, allison via cctech wrote:
>> On 04/28/2019 09:28 PM, Grant Taylor via cctech wrote:
>>> On 4/28/19 6:27 PM, Ray Jewhurst wrote:
>>>> I already have a Hobbyist License. I am just interested in
>>
crap.
I buy new hardware that is not neutered. Mini/Micro-ITX board with
atom or celeron CPUs (really all that's needed) are cheap and easily
built up into linux boxes or if you must any of the older 32 bit
winders incantations.
Allison
]On 05/11/2019 11:22 AM, Douglas Taylor via cctech w
fresh for dynamic ram card that do not refresh themselves.
The contemporary memory cards did not self refresh and used the early
4K or 16K 16pin devices. Memory used for 11/23 (f11) and later
by then self refresh on the local card level was the norm and cut
bus traffic load.
Many of the func
On 06/08/2019 10:37 PM, Noel Chiappa via cctech wrote:
> > From: Allison
>
> > ODT for the two systems are very different. .. KDF-11 the ODT is part
> > of the higher level code. The larger cards (11/23 and 23+) boot to
> > resident (ep)rom.
>
> A
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