Got the Tekmos PRU so I can use Ports B & C while in expanded mode. Have read and re-read the data sheet (a near word-for-word copy of the old Motorola PRU data sheet). Understand I need to pull lines A8-A11 low while writing the INIT register. However, do not see how these lines interface with the PRU. Too bad there's no real schematic in that data sheet. Anyone know where or how these address lines attach to the PRU or if this was some unfortunate typo?!!