There are a few options for modifying the single ended data and control signals on this EVM. Jumpers J6, J11, J12, and J16 all contain pads that are blank by default. For D, DE, and /RE signals there are 0603-sized pads for either pullup or pulldown resistors to have a default logic on these pins with the added benefit of still being able to external signals to this pin. The R pin also contains a 0603-sized pullup resistor, as is common in UART based applications, as well as a 0603-sized pad that connects to ground for a capacitive load for testing cases that requires capacitive loading on the R pin. A summary of possible single-ended signal pathway modifications on the EVM are in Table 2-4.