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ZXMMC+ emulation added to Z80p48K emulator for the V6Z80p+Hi friends! As time ago I've posted a thread about an FPGA clone for the V6Z80p board, I'd like to give an update about the status of the project. …
... is equipped with a 20MHz CMOS Z80; the FPGA core can run ... -
Project #1 : Speccy 128k+2 with diVide inside...Hi guys, I just have finished my Super Spectrum #1 The idea (I was thinking of that since 2007) was to fit an english grey +2 motherboard in a +2A…
... /> So I inverted the 2 Z80, thinking of a M1 line ... found that I had a cmos Z80 in the +2A and a ... another +2a, they all have cmos z80. All my Spectrum in working ... order (4) have now cmos z80, and
my last non ... -
New CPU and Spectranet oddity.I have no reason to suspect this problem is due to a fault/poor design of the Spectranet, but understanding what it does at system initialisation may…
... CPU with a new Z84C00 (CMOS) Z80. However, it will not work ... -
Spectranet questionsI have received the wonderful Spectranet interface from RWAP today. I have started to experiment with it and I have found an interesting thing... So…
... with a Zilog Z84C0006PEG NMOS/CMOS Z80 CPU because the desoldered original ... -
Bizarre ZX Spectrum faults (also possibly relevant to Spectranet compatibility problems).I'm attempting to repair an issue 4A 48K ZX Spectrum and am encountering some very strange problems. For my own records I've given this computer the …
... Ethernet interface, I discovered the Z80 had a non-functioning /M1 ... replaced it with a new CMOS Z80 and confirmed its /M1 output ... before when using a modern Z80 and so I didn't ... cases other than when a CMOS Z80 is fitted.
In ... -
Nooooo my speccy died!??!!Hi! I am quite sad. :( Tonight I got a kempston interface so I rushed home to try it on my spectrum+ The edge connector of the interface was narrower…
... 't have any trouble finding Z80 processors - I have three Mostek ... (mostly for use with a Z80-based recording weather station I ... ), and also I have a CMOS Z80 on the way from an ... power requirements. I'm using CMOS for everything else). I bet ... -
in quest for a z80 :DI am trying to find a Z80A in some retail shops here in Greece. I have only located the following CPUs branded as either Z80 without anything else o…
... Unit (CMOS, marked new for '82)
[*](Z8410) Z80 DMA Direct ... Access Controller
[*](Z8420) Z80 PIO Parallel Input/Output Controller ... and async)
[*](Z8470) Z80 DART Dual Asynchronous Receiver/Transmitter ... don't know if the CMOS Z80 will work on a ... -
in quest for a z80 :DI am trying to find a Z80A in some retail shops here in Greece. I have only located the following CPUs branded as either Z80 without anything else o…
... also have a true Zilog CMOS Z80.
All the actual ... (from any manufacturer of the Z80) should have CPU on it ... -
in quest for a z80 :DI am trying to find a Z80A in some retail shops here in Greece. I have only located the following CPUs branded as either Z80 without anything else o…
[QUOTE=Pyjamarama]Hi
I managed to find a Z80 but I do not know if it is the right one
Z84C0008PEC
Z80 CPU
0124 74
I hope it is the one (...anxious...)[/QUOTE]
Z84C 0008 PEC -
in quest for a z80 :DI am trying to find a Z80A in some retail shops here in Greece. I have only located the following CPUs branded as either Z80 without anything else o…
... old 40-pin Z80 CPUs - only the bigger Z80 related CPUs.[/QUOTE ... and 10MHz flavours of the CMOS Z80...
Quick check - they ... -
Opus Discovery and +2A?Can anyone tell me if the Opus Discovery is compatible with the +2A. I've just bought a +2A off Ebay and couldn't find any info on compatability. If…
... the edge connector? My own Z80 constructions seem to be taking ... 've been abusing the same CMOS Z80 for about 3 months now ... taking out at least the Z80, the ULA and some of ... -
Opus Discovery and +2A?Can anyone tell me if the Opus Discovery is compatible with the +2A. I've just bought a +2A off Ebay and couldn't find any info on compatability. If…
... 5V power line on that CMOS Z80 - we'll soon see how ... -
Zx Spectrum Laptop (again)I've been reading all the old treads about a possible portable speccy. I even found the one about the Speccy Laptop. But it seems there's a lot of ne…
... with a couple of speedy CMOS static chips, but then some ... (are there any 8-bit, Z80 compatible DRAMs?): You get the ... ?
There are also CMOS Z80 variants, as well, which should ... -
Z80 CPUs goin cheap.This guy is selling them very cheaply and has a couple multi item auctions for them. Thought I would post here in case people were looking for one/so…
... is Z84C0008PEG (Z84C00 means a CMOS Z80 CPU, 08 means rated up ... . I have a brand new CMOS one in the ALIAC-2 ... -
Source of Z80 ProcessorsHi all, After seeing the somewhat inflated prices that +2A's and +3's seem to be going for on eBay I'm wondering if trying to fix my 48k+ is a bette…
Z80's are still manufactured by ... . (Z84C is the code for CMOS Z80 (the old NMOS ones were ... would want if replacing the Z80. I have to use the ... -
DivIDE+ and 128K HeatsinkI got my DivIDE+ yesterday and i tried it on a 48K+ at first, it worked marvelously on it, no problems at all. Today i desided to try it on my 128 H…
... , and the drive of the Z80 is a bit weak when ... .
Perhaps the one Z80 you have that worked has ... this. (If you have a CMOS Z80, it would be interesting to ... drive capability required from the Z80 by orders of magnitude, and ... -
Accelerated spectrum?Hihi Has anyone managed to replace the Z80 in a spectrum with a Z80B? Just wondering if it'd be possible to have a couple of crystals switchable to…
... clone SPRINTER 2000 use Z84C15 cmos Z80 CPU(15MHz version) overclocked to ... -
Z80 ApplicationsI never realised how widely in use the humble Z80 processor was in early Arcade games (Galaga had 3 running in Parallel), Fax Machines, Photocopiers,…
The CMOS Z80 is still being made. You ... magnitude more electricity than a Z80 at the same clock speed ... than static registers like the Z80) it will have a minimum ... use.
If anything, Z80 type workloads (generally, where you ... -
NEC CPU - problem?I wonder if I should substitute a NEC CPU in a grey +2. Does anyone else had problems with NEC CPUs inside ZX Spectrum. Some time ago I had a Spectr…
... specs for both Nmos and Cmos parts, and look for ... [/I] clock frequency. For Cmos Z80, these are both specified as ... / Toshiba / Sharp or other Z80 manufacturer's databook at hand ... Mostek Technical Manual (excellent Z80 reference btw!), which states similar ... -
Recommended book (in WOS archive) for learning Z80 instructions?I have a very vague knowledge of a few Z80 instructions, but would like a comprehensive reference book. Can anyone recommend a decent book in the WO…
... an excellent reference for the Z80. It's available in PDF ... ]http://www.zilog.com/docs/z80/um0080.pdf[/url]
The "classic" Z80 (as found in the Speccy ... this doesn't matter - the CMOS Z80 works just as well in ... -
48 Issue 3b working but very hot ula and cpuSalve to everybody I bought from e*ay an Issue 3b 48k , fitted in a + case. Fixed the keyboard problem with a new keyboard membrane from good Rwap (w…
... 's usual. (If a new CMOS Z80 is installed, that does not ... -
RAND USR that doesn't work in emulators and clonesEons ago, I "discovered" a strange RANDOMIZE USR. This is it: [b]RANDOMIZE USR 46578[/b] Using it on a genuine ZX Spectrum rubber key or Plus model,…
... last one is a 20MHz CMOS version. Both from Zilog.
[B]Zilog Z0840020PEC. CMOS Z80 CPU, 20MHz[/B]
In the "The undocumented Z80 documented" this can be read ... happen).
Also since the Z80 is 8080 compatible, interrupt mode ... -
The SAM CoupeDoes anyone own one of these? I remember being jealous of a friend who bought one of these machines which had a disk that made the system compatible …
... /> Old Z80B will replace by CMOS Z80(20MHz version).
As soundchips ... -
4116 replaced by 4164 - "Noisy" paper?After I replaced my 4116's with 4164's and hooked them up to +5V, disconnected -5V and +12V, I have what looks like vertical lines in the paper, like…
... "interference" can happen with a CMOS Z80 CPU (which has much lower ... -
Z80 new old stockHi. I found this on eBay but ... is there a way we could know they don't hav a faulty M1 line? [url]http://www.ebay.com/itm/Zilog-Z80-CPU-Z0840004PS…
... read some time that Zilog Z80's have less drive strenght ... some signals (as compared to Z80's from other manufacturers), which ... 1. Chances are NMOS and CMOS Z80's behave different in this ... you can still buy Zilog CMOS Z80's brand new, and NOS ... -
Z80 new old stockHi. I found this on eBay but ... is there a way we could know they don't hav a faulty M1 line? [url]http://www.ebay.com/itm/Zilog-Z80-CPU-Z0840004PS…
... is internally disconnected in the Z80, and any signal you see ... better drive, for instance a CMOS Z80 or a different manufacturer's ... -
Z80 new old stockHi. I found this on eBay but ... is there a way we could know they don't hav a faulty M1 line? [url]http://www.ebay.com/itm/Zilog-Z80-CPU-Z0840004PS…
The only issue with CMOS Z80s like the one pictured ... slightly higher resistance values. The CMOS Z80's outputs have much lower ... all the time because the Z80 writes overpower the outputs of ... -
The new Superfo cloneHi In the spanish forum speccy.org some guys and me have optimized the superfo clon to have less ICs. The actual design has 39 ICs versus the 45 ICs…
I use cmos z80 in my zx machines, no problem. Depending on what cmos logic you are using, they are capable of handling the voltage levels, but the switching action of cmos is much faster than TTL logic, and that might be a problem sometimes. -
The new Superfo cloneHi In the spanish forum speccy.org some guys and me have optimized the superfo clon to have less ICs. The actual design has 39 ICs versus the 45 ICs…
[QUOTE=Johan1973;670454]I use cmos z80 in my zx machines, no ... problem. Depending on what cmos logic you are using, they ... , but the switching action of cmos is much faster than TTL ... and standards of logical levels. CMOS Z80 has a TTL logic levels ...
