UNI/O bus and serial EEPROMs
Posted: Mon Dec 22, 2014 8:25 pm
I put a module and example program on the wiki for interfacing with the Microchip UNI/O bus.
UNI/O is another one-wire bus. To be honest, there's not much interesting about it since it only seems to be implemented in a handful of Microchip EEPROMs and not much else.
There is one exception, and that's the 11AA02E48 which is a small 256x8 EEPROM along with a pre-programmed 48-bit node address (EUI-48). This comes in handy if you need an Ethernet MAC address, or it can also be used in places where you might want a globally unique serial number. The device is available in a small SOT-23 package, and you only need a single wire interface to it (plus it's cheap).
UNI/O is another one-wire bus. To be honest, there's not much interesting about it since it only seems to be implemented in a handful of Microchip EEPROMs and not much else.
There is one exception, and that's the 11AA02E48 which is a small 256x8 EEPROM along with a pre-programmed 48-bit node address (EUI-48). This comes in handy if you need an Ethernet MAC address, or it can also be used in places where you might want a globally unique serial number. The device is available in a small SOT-23 package, and you only need a single wire interface to it (plus it's cheap).