DocID024130 Rev 2

13/22

AN4231

Application code structure

Figure 7. PLL configuration function

3.2.4

Reset Generation Module function

This function allows selecting which core is used for booting after STANDBY exit. If the

BOOT_FROM_BKP_RAM is set and if it is boot from FLASH or from backup RAM.

When using the Z4 from RAM in STANDBY mode it needs to ensure that VLE code is used.

By default, the Z0 core is the core that is on STANDBY exit.

Figure 8. RGM init function

3.2.5

Wakeup Unit configuration

This function allows to enable the Wakeup unit in order to set a wakeup event, enabling the

interrupt messaging from the wakeup/interrupt pads to the interrupt controller.