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SBC-68ex http://anycpu.org/forum/viewtopic.php?f=23&t=84 |
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Author: | James_Parsons [ Sun Sep 08, 2013 10:32 pm ] |
Post subject: | SBC-68ex |
My new project is M6800-SBC with 4 ports. 1 for keyboard, 1 for graphics, and 2 for anything I feel like adding . I am currently struggling on address decoding. I have finally chosen 8kx8 RAM and 8kx8 ROM, with the rest of memory for I/O. Please no one try to argue these sizes don't exist, I found at least one of each. Two 6821 PIA's will supply my I/O. After I get the address decoding done, I will work on a very simple BIOS, and when I get video done, I will implement my OS. SBC --> Single Board Computer 68 --> Motorola 6800 Processor ex --> Extendible Why a 6800. I find that it was an underused MPU, and there is much lack of documentation for it. |
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