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Changes between Initial Version and Version 1 of OldMacPeripherals


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Timestamp:
2009-04-26T09:57:48Z (10 years ago)
Author:
Jiri Svoboda
Comment:

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  • OldMacPeripherals

    v1 v1  
     1Legacy Macintosh devices are connected via the Apple Desktop Bus (ADB). This is a simple serial bus that can connect multiple devices. Protocols for devices (such as keyboard, mouse) are specified, too.
     2
     3The ADB controller in the Macs is called CUDA. It is implemented by a Motorola MC6800 micro-controller, which probably is not important from a device-driver point of view. The chip which connects the Mac's I/O space to the CUDA is a [http://en.wikipedia.org/wiki/MOS_Technology_6522 MOS Technology 6522], also called VIA (Versatille Interface Adapter).