The Following Example Data was captured with a TechTools DV3400 Logic analyzer

This example demonstrates using the Boolean Signal type and the Bus Signal type to display the capture of a Muxed Address/Data Bus on an 8031 type microcontroller.

We recently used a DV3400 to monitor an 8031 type microcontroller with muxed Address/Data. We were able to capture over 53,800 complete code fetches with 5ns resolution. Each code fetch included the muxed address/data bus (15bits), ALE, /PSEN and /OE. This target was running at 11.059MHz, but the results would have been the same at most any typical speed down to a few KHz (remember…the time between edges is compressed).