Is there any solution for communication with NEC's SBI interface?

[Kmaka.1]

I have a master Node with NEC MCU (https://www.manualslib.com/manual/109966/Nec-Pd78052.html?page=289) which commincates with a slightly modified I2C protocol called SBI.

I would like to make a SLAVE node, which communicates with the above mentioned IC.

Have someone done something similar before?

Thanks,

Mark

[waclawek.jan]

The protocol appears to be different enough from I2C so that the hardware I2C module is unusable.

Of course, if the communication is slow enough, it should be able to pull it out fully by software, utilizing interrupts (perhaps timers rather than EXTI, so that the timers' channels' filters can be employed). Maybe the data part could be implemented using SPI.

Sounds like a fun project... 🙂

JW