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My own developments - ECB2650 - Update 24 Apr 2022
CPU - Signetics 2650 running at 1MHz.
ROM - Up to 8K of FLASH. I have tested a 1K ROM with the original PIPBUG V1 and a 2K ROM with PIPBUG V2 PIPLA.
RAM - At the moment 32K (minus ROM size), with paging a possibility later.
I/O - Hopefully interfacing with existing ECB interface cards.