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6502 in-circuit debugger | PCB Design

6502 in-circuit debugger
Version 1 - Last update: Oct 3, 2015

With PIC software, this circuit should be able to use the RDY, O1, SYNC and ^RW lines to perform the single step mode of the 6502 CPU (read detail elsewhere). The DATA and ADDRESS bus can be read and output serially to the client. Actually many things are possible with this simple design.

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