Apple's Application Specific Integrated Circuits, Programmable Array Logics and Read Only Memories
The original Apple II did not contain any Application Specific Integrated Circuits (or ASICs) as part of its design, making it a fairly straightforward task to not only copy but also to bring into the FPGA's domain. However, other Apple models did use ASICs, as well as ROMs and PROMs for logic conditions. Capturing these correctly is paramount in ensuring the design is faithfully implemented into the FPGA design space. To aid the process of capturing these devices, each of the ASIC devices used in the various Apple designs are identified as follows, listed according to model with data and device location for each of the respective logic boards.