M H Stein wrote: > ---------- > From: Jim Brain[SMTP:firstname.lastname@example.org] > Sent: Sunday, May 03, 2009 7:01 PM > > <snip> > So, for the DIY crowd, it seems worthwhile to offer a 2364 to JEDEC-std > adapter board with a header and a socket, at a nominal price. > <snip> > > Any chance you could also put the two rows of pins for a 6540 replacement > on there while you're at it, to use either a 2732 or 1/2 of a 2764? > > I've still got 68764/66s, but I could sure use something to plug into the old > 2001 ROM sockets if it were cheaper than what's out there now. > > mike > > > Message was sent through the cbm-hackers mailing list > If I understood the IC, I'd be willing. Notes: * I have a pinout, but... * This forum post by ghaytack: (http://forum.6502.org/viewtopic.php?p=4167&sid=d3417a3a329da7056c839997285c1686) notes that the CS lines could be ether active high or active low, depending on application. Is that true? * This adapter (available on eBay) makes it appear that the CS[3-5] are active low, while CS[1-2] are active high. * I can;t find any documentation or datasheet that tells how O2 figures into the equation. * Nicholas Welte has an adapter that might be what you need (http://freenet-homepage.de/x1541/hardware/adaptors.html), but the schematic does not appear to do anything with the CS lines. Jim -- Jim Brain, Brain Innovations (X) email@example.com Dabbling in WWW, Embedded Systems, Old CBM computers, and Good Times! Home: http://www.jbrain.com Message was sent through the cbm-hackers mailing listReceived on 2009-05-05 19:18:25
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