4.1 PLL_INT Interrupt Enable has no effect

The PLL_INT interrupt bit in Interrupt Enable register PMC_IER has no effect.

Work Around

Use the LOCKx and UNLOCKx bits in PMC_PLL_IER, PMC_PLL_IDR, PMC_PLL_IMR and PMC_PLL_ISR0 to manage the interrupt behavior.

For example, to handle an interrupt event associated with the PLLA lock status:
  1. Configure and enable the PMC interrupt as usual for all peripherals in the system.
  2. Enable the interrupt source by setting PMC_PLL_IER.LOCKA.
  3. When a PMC interrupt event raises, use the PMC_PLL_ISR0 and PMC_PLL_IMR registers to detect if LOCKA was the trigger.
  4. Perform the required operations and manage the interrupt exit as usual, using PMC_PLL_IDR.LOCKA and the PMC interrupt system functions.

Affected Silicon Revisions

A0

A0-D1G

A0-D2G

A1

A1-D1G

A1-D2G

A1-D5M

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