Reply by Nathan Brown●September 21, 20232023-09-21
On Monday, 18 September 2023 at 06:40:29 UTC-6, Bruce Mardle wrote:
> On Thursday, 6 October 2022 at 00:52:05 UTC+1, Nathan Brown wrote:=20
> > Looking for information about the old (Zilog) application note "Memory =
Management and the Z80,000 32-bit >Microprocessor" (Zilog document number 0=
0-2329-01).
> I was googling "Z80320", as I do every few years, and found this.=20
> comp.os.cpm is the "unofficial home" for conversations about obscure Zilo=
g parts even when they're not running CP/M. (There is a Z8k CP/M freely ava=
ilable, inc. source. I tried to port the assembler to something sensible bu=
t failed.)=20
> (I built a Z8001-based computer in the early '80s. I've got the 'Prelimin=
ary Z80,000 User Manual' (have you got that?) and a 'Z80,000 Electrical Spe=
cs' booklet, but no other Zilog Z80,000/Z320 documentation. I'd love to bui=
ld a computer using one of them.)
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- I have read the above message, but unfortunately google Gmail does not al=
l for message read conformation when they are forward from a group/forum ea=
sily. Back in the old days with a paid service provided we could send a me=
ssage acknowledge back to a Compuserv, AOL, Prodgy or etc email client host=
. (so they know their message was received and read). So anyways I will now=
thy to answer his questions without doing a bunch of retyping/re entering=
.
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Yes I know about CP/M 8000 from the Z8000 microprocessor (the Olivetti l1m2=
0 version of it).
Yes I have the same documentation as the Preliminary Z80,000 User Manual b=
ut I don't have any special=20
"Z80,000 Electrical Specs' booklet". The "Z80,000 Electrical Specs' bookle=
t" might be interesting if it has the missing signal pins that Zilog omitte=
d from their Z80K data sheets. As for the electrical requirements on the Z8=
0K I just use the values from the hybrid version from Hitachi/NEC/Fujitsu O=
EM Components version.
..
On the more advanced clones of the Z80K from the OEM component sales dept. =
of :Hitachi, Fujitsu, NEC the chip is somewhat improved and had full backwa=
rds compatible with the 16-bit version. (unlike the Zilog version).
The 3rd party Fix chip (support IC) for the Z80320 and Z80,000 are not avai=
lable.=20
..
As far as building a computer using one the CMOS version of the Z8001 and Z=
8002 is still available cheaply out of China, but the support MMU and other=
devices are not so freely available above 4 MHZ range. The Olivetti L1m20 =
computer is well
documented with firmware/software available to download. There were other =
systems with that processor but if you don't=20
have all disks, documentation or its semiconductor devices, I don't recomm=
end trying to build one of them.=20
..
If you want a simple Hex based Z8002 DBC then check out https://store.shopp=
ing.yahoo.co.jp/orangepicoshop/pico-a-023.html
There are a couple of other Z8000 based SBC projects online - sorry data no=
t handy - you will have to do an internet search.
..
I thank those who have replied.
Hopefully this entry will be read by some .
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Reply by Bruce Mardle●September 18, 20232023-09-18
On Thursday, 6 October 2022 at 00:52:05 UTC+1, Nathan Brown wrote:
> Looking for information about the old (Zilog) application note "Memory Management and the Z80,000 32-bit >Microprocessor" (Zilog document number 00-2329-01).
I was googling "Z80320", as I do every few years, and found this.
comp.os.cpm is the "unofficial home" for conversations about obscure Zilog parts even when they're not running CP/M. (There is a Z8k CP/M freely available, inc. source. I tried to port the assembler to something sensible but failed.)
(I built a Z8001-based computer in the early '80s. I've got the 'Preliminary Z80,000 User Manual' (have you got that?) and a 'Z80,000 Electrical Specs' booklet, but no other Zilog Z80,000/Z320 documentation. I'd love to build a computer using one of them.)
Reply by Nathan Brown●October 5, 20222022-10-05
Looking for information about the old (Zilog) application note "Memory Management and the Z80,000 32-bit Microprocessor" (Zilog document number 00-2329-01).