OD_3231_00 Flex IO Configuration

Defines how the pins (inputs/outputs DIO1, 2...) of the device are used.

Each bit in the respective subindex corresponds to a pin, whereby the first pin configures DIO1, the second pin DIO2, etc. The list with the configurable pins can be found in chapter "Digital inputs" of the technical manual for your product.

• Subindex 03_h Alternate Function Mask: This bit mask defines whether the alternative function of the pin is to be activated.

  To activate an alternative function, set the corresponding bit to "1":

  If you do not activate the alternative function, you can no longer use the corresponding pin as a normal input/output.

• Subindex 01_h Output Mask: This bit mask defines whether the pin is used as input or output (depending on whether an alternative function was activated for the pin in subindex 03_h):
  • Bit = "0": Pin is input (default)
  • Bit = "1": Pin is output

• Subindex 02_h Pullup Mask: This bit mask defines whether the pin is a pullup or pulldown:

  • Bit = "0": Pin is pulldown (default)
  • Bit = "1": Pin is pullup

  Subindex 02_h is only active for the pin if it is defined as an input.

Example for subindex 01_h: Pin 2 and pin 3 are to be outputs, value = "6" (=0110 _b)