emulation view
Based on the manual that can be got at the Microchip site and my own disassembly of VectorPilot - the only known cartridge, which makes use of the chip.
Emulation is only done in so far, that VectorPilot playes all right, not emulated at the moment are the command: CRRD, ERAL and SETAL.
Known cartridges which use this hardware:
VectorPilot
Statefiles for the eEprom are always saved in the same directory and named as the original cartridge (bin) file, with the additional extension of: ".microchip.ser".
(the save-format is java serialization)
The microchip 11AA010 uses a manchester serial protocoll (in short: a self synchronizing serial protocoll, where the bit encoding is done by a change from low/high or high/low instead of the high/low states itself).
In general the emulation are three state machines,
one lowlevel "machine"
the low level in general handles the initial syncing needed for later "synchronized" communication
one midlevel "machine"
which emulate atomic commands-steps (like MAK, SAK, reading a bit...)
one highlevel "machine"
which emulates complete commands, which consist of several atomic commands
Input/output is basically done via the lineIn and lineOut functions. Both functions in itself do not trigger any further actions.
You can view current emulation status by opening a "cartridge" window (in dissi type "carti").
emulation view
The datasheet of the chip can be found in the subdirectory:
documents/hardware/eEprom/22067J.pdf