In a 1984 BYTE magazine we read that "some versions" of the then-new 65816 offer a phi4 output clock which runs in quadrature to phi1 and phi2, offering a strobe useful for DRAM multiplexed addressing:


Is that well-known? Did anyone ever see one of those parts? Anyone seen or build an 816 system that uses a quadrature clock? (A search turns up that the R65C102 has such a clock output.)

Cheers
Ed

That sounds like an interesting article, do you know which issue it is from?

Edit: Found it. 2-part article in the August and September issues of 1984, vol-9 no. 8 and vol-9 no. 10 (as no. 9 was a special issue in between).

BigEd's image is from the second half of the article, "Part 2: Hardware" in the September 1984 issue. Article series by Steven P. Hendrix. /Edit

-Tor

That's a new one by me, especially the remark about the SYNC output.

_________________
x86?  We ain't got no x86.  We don't NEED no stinking x86!

Sorry, I should have included an URL - these are large PDF files, and in my case the browser wouldn't load but I could download manually:
http://ftp.math.utah.edu/pub/tex/bib/toc/byte1980.html - tables of contents
ftp://helpedia.com/pub/archive/temp/Byte/
http://maben.homeip.net/static/S100/MAG ... index.html - too slow at the moment.

After some searching I found that the author of the 2-part BYTE magazine article, Steven P. Hendrix, is also the author of a book called "6502, 65C02, and 65816 Handbook" (Amazon has a picture). Did any of you come across this book back then (ca. 1985) or later?

-Tor

I thought it wouldn't be a bad book to have, and used it shouldn't be too expensive. What?? It starts at $358??! I guess I'll pass.

_________________
http://WilsonMinesCo.com/ lots of 6502 resources
The "second front page" is http://wilsonminesco.com/links.html .
What's an additional VIA among friends, anyhow?

I'm not sure where those prices come from.. I see them sometimes on Amazon, for some used book that some 3party tries to sell, presumably (I never followed those links). I even saw the Zaks 6502 Programming book in that price range - if all my old books are worth that much I'm rich! Not that I believe anyone would pay that much for these old books. The prices look very strange. Not even a round, big number.

-Tor