SCM Reserved Pins

The following is a list of reserved pins & services that cannot be used or are not available to the user (they are reserved for Zymbit SCM operation).

Pins that can be used but SCM has control

  • USB2_N
  • USB2_P

Pins that can be used but SCM can monitor

  • nEXTRST
  • GPIO17
  • GPIO22
  • GPIO27

Pins that currently cannot be used, SCM has control (possible future use with firmware changes)

  • RUN_PG
  • nRPIBOOT
  • USB_OTG_ID

Not connected

  • GPIO_VREF