Reset

No Reset Control Available.

No Reset Control AvailableIndicates that reset control is not available for a particular peripheral or system component. This value (0xFFFF) serves as a sentinel to identify peripherals that cannot be individually reset through the reset controller.

無重置控制可用，表示特定外設無法單獨重置

Usage:

• Used as a placeholder for peripherals without reset control
• Enables uniform reset control interface even for non-resettable components
• Allows software to detect unavailable reset functionality
• Prevents accidental reset attempts on unsupported peripherals

註

Implementation Considerations:

• Reset controller should check for this value and handle appropriately
• May indicate peripherals that are reset only during system reset
• Some critical system components may use this to prevent accidental reset

• Could represent peripherals that are always active or have special reset requirements

  Availability Check:

  bool can_reset_peripheral(Control peripheral) {
      return peripheral != Control::NOT_AVAIL;
  }
   
  void safe_reset_peripheral(Control peripheral) {
      if (can_reset_peripheral(peripheral)) {
          reset_ctrl.assert_reset(peripheral);
          reset_ctrl.release_reset(peripheral);
      } else {
          // Handle non-resettable peripheral
          handle_non_resettable_peripheral(peripheral);
      }
  }

警告

Do Not Use for Reset Operations:

• This value should never be used in actual reset control operations
• Always check for this value before attempting reset
• May indicate system-critical components that should not be reset