If you look at the datasheet for that component[1] you'll see that it's actually a really slow (24MHz) "M8C" core, which turns out to be a MIPS core[2]. It's got a ton of GPIO and various other interfaces (I2C, SPI, serial) as well as USB. I would bet that that chip drives a bunch of the little stuff.

[1]: http://www.cypress.com/?mpn=CY8C24794-24LTXI

[2]: http://eessential.blogspot.com/2010/11/survey-of-microcontro...