Module regs

Structs

• Cc
  Capture/compare registers.
• Counter
  Current COUNTER value.
• Evt
  Configures event enable routing to PPI for each RTC event.
• Int
  Interrupt enable clear register.
• Power
  Peripheral power control.
• Prescaler
  12-bit prescaler for COUNTER frequency (32768/(PRESCALER+1)). Must be written when RTC is STOPed.