Comprehensive

Force Low Power Request Output to Logic High Level.

Force Low Power Request Output to Logic High LevelForces the Low Power Request output pin to a logic high electrical level, bypassing automatic power management control and polarity configuration. The pin is driven to approximately VDD regardless of the configured polarity setting, providing direct electrical level control for comprehensive testing and specialized power management applications.

強制低功耗請求輸出為邏輯高電平，直接電氣控制忽略極性設定

Electrical Behavior:

• LPR pin driven to logic high level (~VDD)
• Output level independent of polarity configuration
• Overrides automatic power management hardware control
• Pin state remains high until override is changed or disabled
• Provides deterministic electrical level for external circuit validation

Override Characteristics: When FORCED_HIGH is active:

• Power mode transitions do not influence LPR pin state
• Polarity configuration is bypassed (direct electrical control)
• External circuits receive consistent logic high signal
• Software must explicitly change override to modify pin state
• Pin maintains high state across all power management operations

註

Complementary Testing: FORCED_HIGH enables comprehensive testing by providing the opposite electrical state to FORCED_LOW, allowing complete validation of:

• External circuit response to both signal levels
• LPR output driver functionality verification
• System behavior under different LPR signal conditions

• Power management circuit state machine testing

  External Circuit Testing:

  // Test external power management circuit response to high LPR signal
  void test_external_circuit_high_response() {
      // Force LPR signal high
      configure_lpr_override(LowPowerRequestOutputOverride::FORCED_HIGH);
   
      // Allow external circuit response time
      delay_ms(external_circuit_response_time);
   
      // Evaluate external circuit state
      ExternalCircuitState state = measure_external_circuit_state();
   
      if (state == EXPECTED_HIGH_RESPONSE_STATE) {
          log_info("External circuit responds correctly to high LPR signal");
      } else {
          log_error("External circuit unexpected response to high LPR signal");
      }
   
      // Restore automatic control
      configure_lpr_override(LowPowerRequestOutputOverride::NOT_FORCED);
  }