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Harlequin clone...PCB manufactured!Using Chris Smith's detailed schematics and project notes from the Harlequin... a Speccy fan in the United States by the name of Don (Superfo) has de…
... problem with the Spectranet and CMOS Z80 in the Harlequin was actually ... -
Chloe 280SEHi all, Could somebody tell me how far this project is to being complete? [url]https://github.com/cheveron/sebasic4/wiki/Chloe-280SE[/url] Im ver…
... Zilog Z80182 CPU with older Z80 chips?[/quote]
Somewhat.
CMOS Z80 to 21Mhz giving you a ... -
MISSING M1 LINE ON +48????I was posting questions about my DIVMMC enjoy not working on one of my +48`s and have now got round to testing if its cpu related.Trouble is the one …
... +3). Further, a brand new CMOS Z80 CPU works in most Spectrums ... external device may use the Z80 /M1 output to detect when ... />
For some Z80 p0rn and some sexy Z80 info [URL="http ... ://www.cpu-world.com/CPUs/Z80/MANUF-Zilog.html"]click here ... -
Issues with 48k spectrum and divIDEI heard you can have all kinds of issues with 48k spectrum and certain DivIDE models. Is this true and if so what should I look out for ? Only aski…
... replace it. I had a CMOS Z84C0006PEG at home so I ... same problem with the same CMOS Z80 CPU type (a different piece ... I replaced the CMOS CPU with an NEC Z80 from another Spectrum ... -
Issues with 48k spectrum and divIDEI heard you can have all kinds of issues with 48k spectrum and certain DivIDE models. Is this true and if so what should I look out for ? Only aski…
... replace it. I had a CMOS Z84C0006PEG at home so I ... same problem with the same CMOS Z80 CPU type (a different piece ... I replaced the CMOS CPU with an NEC Z80 from another Spectrum ... -
Issues with 48k spectrum and divIDEI heard you can have all kinds of issues with 48k spectrum and certain DivIDE models. Is this true and if so what should I look out for ? Only aski…
... Spectrum +2B) equipped with the CMOS Z80 CPU are working well now ... -
ZX Spectrum upper RAM module (4532/4164 replacement)Following the [URL="http://zx.zigg.net/LRR/"]lower RAM replacement module[/URL], there have been quite a lot of requests for something similar for th…
... /> - switch mode 7805 replacement
- CMOS Z80
- LS logic replaced by ... module -35mA (260mA)
- with CMOS CPU -55mA (205mA)
- with ... -
Please explain Spectrum FPGA-clones to meI've been using the great ZXDS-emulator on the DS XL so far, which is great. But I kinda missed toying around with hardware. I've tried bidding on a …
... Spectrum ULA and the Z80 could have been implemented ... be a Spectrum ULA or Z80.
... perfect FPGA implementation. The Z80 also saw at least ... from NMOS to CMOS. Are the CMOS Z80s not real ... instruction, whereas on the CMOS Z80 this is reliable.
... -
Please explain Spectrum FPGA-clones to meI've been using the great ZXDS-emulator on the DS XL so far, which is great. But I kinda missed toying around with hardware. I've tried bidding on a …
... to ignore, is the CMOS z80. Every single transistor in ... the original NMOS z80 would have been changed, ... Do you call the CMOS z80 and emulation of the ... t think of a CMOS z80 as being a clone ... as an original z80 implemented with CMOS technology. Similarly, ... -
Non-Ferranti ULA 6C001E-7?Hello! I don't like Iss2 boards that much but after revising one Speccy like that for a friend, the results were so positive that I decided to have …
... 's LRR and URR boards, CMOS Z80, 74HCT logic etc. Should be ... -
The Spectrum Resuscitation ThreadKicking off this thread as a place where people who are fixing/restoring Spectrums (or indeed any other piece of related hardware) can show off their…
... in a Spectrum, but the CMOS Z80 CPU can run from [I ... order to see how the Z80 communicates via the address, control ... -
Ziloghino - Arduino like Z80 systemHi, I found this board on Kickstarter, the Ziloghuino. It's an Arduino like Z80 system extensible with hardware shields. With some effort maybe s…
... - it's a standalone expandable z80 computer in the same spirit ... 's building includes a 20MHz CMOS Z80 part and he's suggesting ... interesting as a standalone embedded z80 computer as there are some ... -
A tally on the number of successful builds of the Harlequin[SIZE=4][COLOR=Green][U][B]A tally on the number of successful builds of the Harlequin.[/B][/U][/COLOR][/SIZE] Please post your successes below :-) …
... need using 12V. Using a CMOS-Z80 the current should be about ... -
Access to ZX81-Service ManualI need the ZX81-Service manual to repair my sick Zeddy. Unfortunately I don't get access to WOS documents via ftp. How can I register? For the ZX-S…
... changed the CPU by an CMOS Z80, and this was the solution ... only 250mA caused by the CMOS type. The ULA is a ... -
Introduce yourself[SIZE=3][FONT=Comic Sans MS]This is the thread to stop by & introduce yourself.[/FONT][/SIZE]
... , switchmode regulator, all 74HC logic, CMOS Z80 etc) but still using the ... -
IXL and IXHI don't know much about undocumented instructions but I get the impression that [b]LD A,IXH[/b] or [b]LD A,IXL[/b] (B, C, D, E also fine, HL not) are…
The Z180 needs less clock cycles to execute some instructions, so is faster than a NMOS or CMOS Z80, but that's all I know.
[b][i]Mark[/i][/b] -
IXL and IXHI don't know much about undocumented instructions but I get the impression that [b]LD A,IXH[/b] or [b]LD A,IXL[/b] (B, C, D, E also fine, HL not) are…
... -- they won't work on CMOS z80s[/quote]
What's ... (c),0 instruction.
a CMOS Z80 outputs $FF for the out ... -
IXL and IXHI don't know much about undocumented instructions but I get the impression that [b]LD A,IXH[/b] or [b]LD A,IXL[/b] (B, C, D, E also fine, HL not) are…
... -- they won't work on CMOS z80s[/quote]
What's ... (c),0 instruction.
a CMOS Z80 outputs $FF for the out ... twice by people using real cmos z80s that sls instructions did ... sls not working on some cmos chips. -
Spectrum 48+ 4S - Upper RAM issue, and now a self-created problem!I recently picked up a known-flaky spectrum off eBay, to have a bit of fun fixing it and reliving youth. It was labelled as 'keyboard duff, shows…
... 128 cycle refresh from the Z80 CPU. Even though they are ... refreshed by the ULA. The Z80 is not able to do ... the refresh system in the Z80 CPU is defective. That would ... ? If yes, buy a new CMOS Z80 CPU and try again.
Replacing z80Hi all, I've just finished removing my z80 and installing it back in in a socket. Surprisingly I haven't broken anything in the process and the sp…
In most cases, a new CMOS Z80 will work okay.
[b][i]Mark[/i][/b]Replacing z80Hi all, I've just finished removing my z80 and installing it back in in a socket. Surprisingly I haven't broken anything in the process and the sp…
No reason not to buy a modern CMOS Z80 made by Zilog from Farnell, really...Replacing z80Hi all, I've just finished removing my z80 and installing it back in in a socket. Surprisingly I haven't broken anything in the process and the sp…
... 's probably quite a few Z80 (licensed?) clones out there, ... do a 3.3V plain Z80 - there'd be quite ... not to buy a modern CMOS Z80 made by Zilog from Farnell ... it happens to be a CMOS one. ;-) (Chinese should just ... few 4 / 6 / 8 MHz CMOS Z80's. But when it's ...Replacing z80Hi all, I've just finished removing my z80 and installing it back in in a socket. Surprisingly I haven't broken anything in the process and the sp…
Has anyone tried a CMOS Z80 at 3.3V? It may work, but may not run up to it's rated clock speed.
[b][i]Mark[/i][/b]Replacing z80Hi all, I've just finished removing my z80 and installing it back in in a socket. Surprisingly I haven't broken anything in the process and the sp…
... ;897149"]Has anyone tried a CMOS Z80 at 3.3V? It may ... anyone actually tried running a z80 at 3.3v but I ... will send out free sample z80's I got five Z84C0020VEG ...Can someone run this test program on a real Spectrum 48K?I've knocked up a small test program just to satisfy my emulation OCD if someone with a real 48K Spectrum can spare a couple of minutes to run it.? …
Were the full Sinclair Loki specs ever actually known?I was just curious. A lot was leaked to the media, but the exact specs seem different depending on source. Some say it could support up to 512x256 an…
... /> Z80B £1.80
Z84C00A CMOS Z80 £3.45
TEA2000 £6 ...The "best" Z80?What's the best Z80 for Spectrums? I know there are differences between brands (Nec, Zilog, Thomson) and technologies (CMOS, NMOS), so what Z80 woul…
What's the best Z80 for Spectrums?
I ... , Thomson) and technologies (CMOS, NMOS), so what Z80 would you recommend for ...A FAQ from a Z80 datasheet may reveal some up-to-now unknown behavioursA fellow member of the zonadepruebas.com forum has just mailed this PDF to me. [url]http://www.atc.us.es/~rodriguj/zilog_z80_faq.zip[/url] It's an e…
... a NMOS o CMOS chip?
- Does the Z80 CMOS suffers from latch ... /> - What happens if a NMOS Z80 suffers a negative spike? (those ...Z80/SNA Compiler under Windows???Does anybody know anything about Z80/SNA compiler under Windows???
Does anybody know anything about Z80/SNA compiler under Windows???
