
Originally Posted by
Darrel Taylor
No, I2CREAD/WRITE are intended to be used as the only Master on the bus.
You could have another line between the masters with a pull-up resistor.
Whenever one of the chips is going to access the bus ... pull that line low to tell the other chip the bus is busy.
Check that line before accessing the bus, pull it low for a short period, then release it and check again. If it goes high, pull it low again and go ahead and access the bus. Just in case they both try to do it at the same time.
hth,
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