Thanks RickR. What's on the breadboard is an RTC board, and the chips are just glue/decoding logic so a progam can bit-bang the SPI interface to get/set time, etc. The RTC chip has some on-chip memory and a unique ID, has timers, and all the usual goodies. I used it in a design at work and thought it'd be a good add on to a board I'm making for the TI. I realize RTCs already exist for the TI, but I wanted to do it just for the fun of it.