Jacob, Yes, the Led's are tied to Port 1. I will try your serial routine to see if that helps in the debugging. One question I did have is why there needs to be such a big delay between the reading and writing to ram? You suggested 50ms, but the SRAM is rated at 200ns. I am new to this, so I apologize for my ignorance. You also mentioned that with the Vcc/RD/WR, etc disabled, that I WOULD still possibly see the correct value on the LED's, I was just curious how this was possible? I appreciate your feedback. Thanks.