Long time since I did Z80, I think you rogramme it with a number and it counts down and generates an interupt. I think the 8255 was the three port PIO and there is also UART in the family Trevor (VideoVault) ----- Original Message ----- To: "Multiple recipients of list CHIPDIR-L" <[EMAIL PROTECTED]> Sent: Thursday, May 27, 2004 5:44 PM
> On Thu, May 27, 2004 at 06:54:22AM -0800, Joe R. enlightened us thusly > > At 02:35 AM 5/27/04 -0800, you wrote: > > >On Wed, May 26, 2004 at 09:49:21AM -0800, Joe R. enlightened us > > >thusly > > >> Anybody know what these might be? I found two of them on a DEC > > >> prototyping board along with a bunch of SSI ICs and an Intel > > >> 8254 Programmable interval timer. They have 28 pins and are .6" > > >> wide and appear to be dated 1985. > > > > > >Some form of uP support? /looks it up in antique databooks > > > > > >Hmmm... The wd1511 is a FIFO or LIFO (First in first out or last in > > >first out). > > > > > >So, in all probability the WD1510 is a FINO device - i.e. a write > > >only memory :-) > > > > A FINO? Is that like a Bit-Bucket? > > > ROTFL. > > You, sir, made the mistake of taking me seriously. Did you miss the > smiley|? To understand, you need to see this :) > > http://www.ganssle.com/misc/wom.html (bottom of page) > > If the text is difficult to read, try > > http://www.airplex.com/tina/signet1.html > > -- > > With best Regards, > > > Declan Moriarty. > -- > Author: Declan Moriarty > INET: [EMAIL PROTECTED] > > Fat City Hosting, San Diego, California -- http://www.fatcity.com > --------------------------------------------------------------------- > To REMOVE yourself from this mailing list, send an E-Mail message > to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in > the message BODY, include a line containing: UNSUB CHIPDIR-L > (or the name of mailing list you want to be removed from). You may > also send the HELP command for other information (like subscribing). > -- Author: Trevor Brown INET: [EMAIL PROTECTED] Fat City Hosting, San Diego, California -- http://www.fatcity.com --------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB CHIPDIR-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
