Has anyone noticed that the 6527 Register Level Programmer Manual states that the Master Int Control register should have a 0x01 to enable interrupts, when in fact, it looks more like a 0x05 is required (I found that out by trial and error). My question is: "I would like to know which bits in the master interrupt control register are active, and what do they control?" I have written 0x05, and that seems to have enabled ints, but I'm not warm and fuzzy about guessing what the bit settings should be. I have checked the on-line manual and it still contains the error (i.e. it still says to write a 0x01 to the register to enable interrupts).