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# 1.4.2 PolarFire® SoC, RT PolarFire SoC

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This section describes new features and enhancements for PolarFire SoC and RT PolarFire SoC device families in Libero® SoC v2026.1.

## 1.4.2.1 MSS DDR Impedance Display in Ohms

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Libero® SoC v2026.1 now displays the configured MSS DDR impedance value in ohms in the MSS Impedance (Ohm) column. This update improves visibility into the selected DDR impedance configuration.

## 1.4.2.2 eNVM Configuration

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Libero® SoC v2026.1 enables users to add a plain-text data client in the eNVM configuration flow. This enhancement provides additional flexibility when configuring eNVM data clients.

## 1.4.2.3 PolarFire® SoC Standalone MSS Configurator

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This section describes new features and enhancements for the PolarFire SoC Standalone MSS Configurator in Libero® SoC v2026.1.

### 1.4.2.3.1 PMP Configuration DRCs for Batch Mode

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Libero® SoC v2026.1 now provides additional Design Rule Checks for PMP and MPU expert mode fields in batch mode to prevent MSS generation for invalid values.

### 1.4.2.3.2 MSS DDR Timing Support

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Libero® SoC v2026.1 updates the MSS DDR configuration flow to account for the `tCCD_L` memory timing parameter. This enhancement improves timing parameter handling for supported MSS DDR configurations.

### 1.4.2.3.3 MSS Timing Shell Export with HDL Export

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Libero® SoC v2026.1 enables export of MSS Timing Shell information when HDL export is enabled. This enhancement ensures timing-related MSS information is available with exported HDL collateral.

Rev: 2026.1

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