ravuya
Active member
I'm really curious about this too - I had thought the EGRET was more custom than it actually is, but now that I look at the ADB technotes it does seem to be a 68hc05 microcontroller (looks like it's even inside CUDA on the PPCs). I don't know if the pinout is feasible or if it's a custom package that would require a wiring adapter.Wow! I did not know this. I thought it would not be possible to dump it from the Mac.
Maybe the Egret is the same as one of these 6805 MCUs, and if so, we could burn another: http://www.bitsavers.org/components/motorola/6805/Single_Chip_Microcontrollers.pdf
The Egret has 28 pins and evidently 4.25 kB of ROM, judging from the ROM dumps. None of the MCUs in that list seem to match. Some have 4.5 kB of ROM though.
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