I think you're wrong about many arguments for command send to other core. You can send a word, ie, "big command" composed from four MISC command. One of MISC c

I think you're wrong about many arguments for command send to other core. You can send a word, ie, "big command" composed from four MISC command. One of MISC commands in "big command" can retrieve data from other core. So most of the time you will wait to send a command or to receive some data.