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