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AW: DEBYUT-M
This picture shows a russian eprom KS573RF2
http://electronlibre.x86-guide.com/e...cpu-no371.html Picture in wiki shows KS573RF4A. Don't know the encoding of speed rate... https://www.schachcomputer.info/foru...0&d=1468222260 |
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Re: DEBYUT-M
Are you sure that on quartz mark says 6,200k and not 16.200k?
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AW: DEBYUT-M
Typical ROMs had 450 ns at the end of the eighties. |
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AW: Re: DEBYUT-M
Possible... a third would be 5.4 MHz, thus slightly overclocked only...
solwac, do you have a reference for clock divider? Ok, 200ns is "fast" I had in mind that 250 is slowest ever... |
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AW: Re: DEBYUT-M
Sorry no. I tried to find some reliable Information but I have to dig deeper. Perhaps in some old Byte...
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AW: DEBYUT-M
There are several references mentioning 1/3
http://www.controllersandpcs.de/lehr...k/edskap05.pdf http://www.ece.cmu.edu/~ece740/f11/l...-datasheet.pdf Second reference states "asymmetric" as you mentioned already. And 33% duty cycle (Page 4). Question is now: 1/3 or 2/3 ?! My cpu line was U880 (Z80), 6502 and then 386 by AMD, so I have no experience with 8086... |
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Re: DEBYUT-M
I have to mention by the way, that a real working frequency for TurboKing and Simultano is 2,5 Mhz and not 5 - because its generated through NEC uPD78310/312 onboard controller (that 64-pin monster near 6502 cpu).
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Re: DEBUT-M
Few more words about Debut-M: it has Permanent Brain always ON (like Kaplan's computers), Referee mode (for 2 humans play), Takeback full game length and Set-Up position function - with this one choosing a specified level means not setting time control but the depth that device must reach at least (from 1 to 9 plies).
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Re: DEBUT-M
Ok, so I check on-board quartz again and its clearly written 16200K, so with Intel 8284's 1/3 divider it gives us 5,4 Mhz real frequency to this chess computer...
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Thema | Erstellt von | Forum | Antworten | Letzter Beitrag |
Partie: Debut-M | IvenGO | Partien und Turniere / Games and Tournaments | 41 | 26.03.2017 09:56 |