OT but I’ve just got into microcontrollers for the first time in the last week via an Arduino Uno. I’m absolutely in love with it and I now need to go a bit deeper (I’m working on a synth). I get a lot of the concepts like the registers to control the timers / interrupts but I’ve found a good guide to be lacking. I haven’t seen a list anywhere of all the available registers and what the bits do. I get that it’s different for different chips but I thought the info for more common ones (like the ATMega328) would be easier to come by.
Any hints on where to look?