Re-animating the PDP-11/70 with CPLD, ethernet

Posted on Wednesday, March 30th, 2011 in CPLD, vintage by Ian

J. Peterson updated a PDP-11/70 console with an ethernet controller and a CPLD to control the blinking LEDs:

I’ve always missed that visual and tactile aspect of computers that’s been lost since the advent of microprocessors. When a console for a PDP-11/70 came up for sale on Ebay, I couldn’t resist the opportunity to bring it back to life.

I used a Zilog EZ80F91 based Ethernet controller along with a Xilinx XC95108 CPLD to hook up all the lights and switches and make them controllable over the net.

Thanks J. Peterson! Via the comments.

This entry was posted on Wednesday, March 30th, 2011 at 8:53 am and is filed under CPLD, vintage. You can follow any responses to this entry through the RSS 2.0 feed. You can skip to the end and leave a response. Pinging is currently not allowed.

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