doc: Updated Matter and Thread .rst files to include 54LM20

kkasperczyk-no · ArekBalysNordic · commit 83c5a780524a · 2025-08-27T13:11:49.000+02:00
Updated Matter and Thread documentation to include nRF54LM20 DK.

Matter table for tx power is out-dated and has a lot of bugs.
Fixed bugs, added missing entries and added 54lm20 dk.

Updated OT memory requirements with table for nRF54LM20

Updated Matter memory requirements by adding tables for
nRF54LM20. Additionally, updated tables for diagnostic logs
that were out of date.

Signed-off-by: Kamil Kasperczyk &lt;kamil.kasperczyk@nordicsemi.no&gt;
diff --git a/doc/nrf/protocols/matter/end_product/security.rst b/doc/nrf/protocols/matter/end_product/security.rst
@@ -121,7 +121,12 @@ This is a reference configuration that can be modified in the production firmwar
      - CRACEN [2]_
      - Yes
      - Trusted Storage library + Hardware Unique Key (HUK) + Key Management Unit (KMU)
-
+   * - nRF54LM20 SoC
+     - Thread
+     - PSA Crypto API
+     - CRACEN [2]_
+     - Yes
+     - Trusted Storage library + Hardware Unique Key (HUK) + Key Management Unit (KMU)
 
 .. [1] The CryptoCell backend is used in parallel with the Oberon backend.
        By default, the CryptoCell backend is used only for Random Number Generation (RNG) and the AEAD key derivation driver.
diff --git a/doc/nrf/protocols/matter/getting_started/ecosystem_compatibility_testing.rst b/doc/nrf/protocols/matter/getting_started/ecosystem_compatibility_testing.rst
@@ -19,7 +19,7 @@ Prerequisites
 
 At the very least, you need the following pieces of hardware to set up and test the interoperability scenario from the tutorial:
 
-* Matter over Thread development kit: 1x nRF52840 DK, 1x nRF5340 DK, or 1x nRF54L15 DK
+* Matter over Thread development kit: 1x nRF52840 DK, 1x nRF5340 DK, 1x nRF54L15 DK, or 1x nRF54LM20 DK
 * Matter over Wi-Fi development kit: 1x nRF7002 DK
 * Devices from at least one of commercial ecosystems compatible with the official Matter implementation, for example:
 
diff --git a/doc/nrf/protocols/matter/getting_started/hw_requirements.rst b/doc/nrf/protocols/matter/getting_started/hw_requirements.rst
diff --git a/doc/nrf/protocols/matter/getting_started/low_power_configuration.rst b/doc/nrf/protocols/matter/getting_started/low_power_configuration.rst
@@ -242,9 +242,9 @@ Disable LEDs module
 When performing the power measurements on various development kits, the LEDs can either be included in the measurement circuit or not:
 
 * For the nRF52840 DK and nRF5340 DK, the LEDs are excluded from the measurement circuit, so they can be enabled for the low power configuration and it is not going to impact the measurement results.
-* For the nRF54L15 DK, the MOSFET transistors controlling the LEDs are included in the measurement circuit.
+* For the nRF54L15 DK and nRF54LM20 DK, the MOSFET transistors controlling the LEDs are included in the measurement circuit.
   This results in measurement results being increased by an additional, small leakage current that appears if an LED is turned on.
-  To measure the current consumption of the nRF54L15 SoC without including development kit components, such as LEDs, it is recommended to disable them.
+  To measure the current consumption of the nRF54L15 or nRF54LM20 SoC without including development kit components, such as LEDs, it is recommended to disable them.
 
 To disable LEDs in the Matter samples and applications, set the :ref:`CONFIG_NCS_SAMPLE_MATTER_LEDS <CONFIG_NCS_SAMPLE_MATTER_LEDS>` Kconfig option to ``n``.
 
diff --git a/doc/nrf/protocols/matter/getting_started/transmission_power.rst b/doc/nrf/protocols/matter/getting_started/transmission_power.rst
diff --git a/doc/nrf/protocols/matter/overview/integration.rst b/doc/nrf/protocols/matter/overview/integration.rst
@@ -56,12 +56,12 @@ This platform design is suitable for the following development kits:
 
 .. table-from-rows:: /includes/sample_board_rows.txt
    :header: heading
-   :rows: nrf52840dk_nrf52840, nrf5340dk_nrf5340_cpuapp, nrf54l15dk_nrf54l15_cpuapp_and_cpuapp_ns
+   :rows: nrf52840dk_nrf52840, nrf5340dk_nrf5340_cpuapp, nrf54l15dk_nrf54l15_cpuapp_and_cpuapp_ns, nrf54lm20dk_nrf54lm20a_cpuapp
 
 The design differences between the supported SoCs are the following:
 
 * On the nRF5340, SoC the network core runs both the Bluetooth LE Controller and the 802.15.4 IEEE Radio Driver.
-* On the nRF52840 and nRF54L15 SoCs, all components are located on the application core.
+* On the nRF52840, nRF54L15 and nRF54LM20 SoCs, all components are located on the application core.
 
 .. figure:: ../../thread/overview/images/thread_platform_design_multi.svg
    :alt: Multiprotocol Thread and Bluetooth LE architecture (nRF52, nRF54L)
diff --git a/doc/nrf/protocols/thread/overview/architectures.rst b/doc/nrf/protocols/thread/overview/architectures.rst
@@ -121,7 +121,7 @@ This platform design is suitable for the following development kits:
 
 .. table-from-rows:: /includes/sample_board_rows.txt
    :header: heading
-   :rows: nrf52840dk_nrf52840, nrf5340dk_nrf5340_cpuapp, nrf54l15dk_nrf54l15_cpuapp_and_cpuapp_ns, nrf54l15dk_nrf54l10_cpuapp, nrf21540dk_nrf52840
+   :rows: nrf52840dk_nrf52840, nrf5340dk_nrf5340_cpuapp, nrf54l15dk_nrf54l15_cpuapp_and_cpuapp_ns, nrf54l15dk_nrf54l10_cpuapp, nrf54lm20dk_nrf54lm20a_cpuapp, nrf21540dk_nrf52840
 
 .. _thread_architectures_designs_soc_designs_multiprotocol:
 
@@ -176,7 +176,7 @@ This platform design is suitable for the following development kits:
 
 .. table-from-rows:: /includes/sample_board_rows.txt
    :header: heading
-   :rows: nrf52840dk_nrf52840, nrf5340dk_nrf5340_cpuapp, nrf54l15dk_nrf54l15_cpuapp_and_cpuapp_ns, nrf54l15dk_nrf54l10_cpuapp
+   :rows: nrf52840dk_nrf52840, nrf5340dk_nrf5340_cpuapp, nrf54l15dk_nrf54l15_cpuapp_and_cpuapp_ns, nrf54l15dk_nrf54l10_cpuapp, nrf54lm20dk_nrf54lm20a_cpuapp
 
 .. _thread_architectures_designs_cp:
 
@@ -282,7 +282,7 @@ This platform design is suitable for the following development kits:
 
 .. table-from-rows:: /includes/sample_board_rows.txt
    :header: heading
-   :rows: nrf52833dk_nrf52833, nrf52840dk_nrf52840, nrf54l15dk_nrf54l15_cpuapp_and_cpuapp_ns, nrf54l15dk_nrf54l05_cpuapp, nrf21540dk_nrf52840
+   :rows: nrf52833dk_nrf52833, nrf52840dk_nrf52840, nrf54l15dk_nrf54l15_cpuapp_and_cpuapp_ns, nrf54l15dk_nrf54l05_cpuapp, nrf54lm20dk_nrf54lm20a_cpuapp, nrf21540dk_nrf52840
 
 .. _thread_architectures_designs_cp_uart:
 
diff --git a/doc/nrf/protocols/thread/overview/memory_tables/nrf54lm20a.txt b/doc/nrf/protocols/thread/overview/memory_tables/nrf54lm20a.txt
@@ -0,0 +1,46 @@
+.. tabs::
+
+   .. group-tab:: Single protocol
+
+      .. table:: nRF54LM20 single protocol Thread 1.4 memory requirements
+
+         +-----------------------------+----------+-------+-------+
+         |                             |   master |   FTD |   MTD |
+         +=============================+==========+=======+=======+
+         | ROM OT stack + App [kB]     |      446 |   333 |   280 |
+         +-----------------------------+----------+-------+-------+
+         | ROM Bluetooth LE stack [kB] |        0 |     0 |     0 |
+         +-----------------------------+----------+-------+-------+
+         | Persistent storage [kB]     |       32 |    32 |    32 |
+         +-----------------------------+----------+-------+-------+
+         | Free ROM [kB]               |     1558 |  1671 |  1724 |
+         +-----------------------------+----------+-------+-------+
+         | RAM OT stack + App [kB]     |       94 |    85 |    71 |
+         +-----------------------------+----------+-------+-------+
+         | RAM Bluetooth LE stack [kB] |        0 |     0 |     0 |
+         +-----------------------------+----------+-------+-------+
+         | Free RAM [kB]               |      418 |   427 |   441 |
+         +-----------------------------+----------+-------+-------+
+
+
+   .. group-tab:: Multiprotocol
+
+      .. table:: nRF54LM20 multiprotocol Thread 1.4 memory requirements
+
+         +-----------------------------+----------+-------+-------+
+         |                             |   master |   FTD |   MTD |
+         +=============================+==========+=======+=======+
+         | ROM OT stack + App [kB]     |      446 |   333 |   280 |
+         +-----------------------------+----------+-------+-------+
+         | ROM Bluetooth LE stack [kB] |       73 |    73 |    72 |
+         +-----------------------------+----------+-------+-------+
+         | Persistent storage [kB]     |       32 |    32 |    32 |
+         +-----------------------------+----------+-------+-------+
+         | Free ROM [kB]               |     1485 |  1598 |  1652 |
+         +-----------------------------+----------+-------+-------+
+         | RAM OT stack + App [kB]     |       94 |    85 |    71 |
+         +-----------------------------+----------+-------+-------+
+         | RAM Bluetooth LE stack [kB] |       14 |    13 |    13 |
+         +-----------------------------+----------+-------+-------+
+         | Free RAM [kB]               |      404 |   414 |   428 |
+         +-----------------------------+----------+-------+-------+
diff --git a/doc/nrf/protocols/thread/overview/security.rst b/doc/nrf/protocols/thread/overview/security.rst
@@ -191,7 +191,7 @@ This is a reference configuration that you can modify in the production firmware
      - Oberon + CryptoCell [2]_
      - Yes
      - Trusted Storage library + Hardware Unique Key (HUK)
-   * - nRF54L15, nRF54L10, nRF54L05 SoCs
+   * - nRF54LM20, nRF54L15, nRF54L10, nRF54L05 SoCs
      - Thread
      - CRACEN [3]_
      - Yes
diff --git a/doc/nrf/releases_and_maturity/software_maturity.rst b/doc/nrf/releases_and_maturity/software_maturity.rst
@@ -300,56 +300,67 @@ The following table indicates the software maturity levels of the support for ea
            - nRF54L05
            - nRF54L10
            - nRF54L15
+           - nRF54LM20
          * - **Bluetooth®**
            - Supported
            - Supported
            - Supported
            - Supported
+           - --
          * - **Bluetooth Mesh**
            - --
            - Supported
            - Supported
            - Supported
+           - --
          * - **DECT NR+ PHY**
            - --
            - --
            - --
            - --
+           - --
          * - **LTE**
            - --
            - --
            - --
            - --
+           - --
          * - **Matter**
            - --
            - --
            - Supported
            - Supported
+           - Experimental
          * - **NFC**
            - Experimental
            - Supported
            - Supported
            - Supported
+           - --
          * - **Sidewalk**
            - --
            - --
            - Supported\ :sup:`4`
            - Supported\ :sup:`4`
+           - --
          * - **Thread**
            - --
            - Supported
            - Supported
            - Supported
+           - Experimental
          * - **Wi-Fi®**
            - Experimental\ :sup:`3`
            - --
            - --
            - Experimental\ :sup:`3`
+           - --
          * - **Zigbee**
            - --
            - Supported\ :sup:`5`
            - Supported\ :sup:`5`
            - Supported\ :sup:`5`
+           - --
 
    .. group-tab:: nRF91 Series
 
@@ -1499,46 +1510,55 @@ The following table indicates the software maturity levels of the support for ea
               - nRF54L05
               - nRF54L10
               - nRF54L15
+              - nRF54LM20
             * - **Matter - OTA DFU over Bluetooth LE**
               - --
               - --
               - Supported
               - Supported
+              - Experimental
             * - **Matter Intermittently Connected Device**
               - --
               - --
               - Supported
               - Supported
+              - Experimental
             * - **Matter commissioning over Bluetooth LE with NFC onboarding**
               - --
               - --
               - Supported
               - Supported
+              - Experimental
             * - **Matter commissioning over Bluetooth LE with QR code onboarding**
               - --
               - --
               - Supported
               - Supported
+              - Experimental
             * - **Matter commissioning over IP**
               - --
               - --
               - Supported
               - Supported
+              - Experimental
             * - **Matter over Thread**
               - --
               - --
               - Supported
               - Supported
+              - Experimental
             * - **Matter over Wi-Fi**
               - --
               - --
               - --
               - --
+              - --
             * - **OTA DFU over Matter**
               - --
               - --
               - Supported
               - Supported
+              - Experimental
 
       .. tab:: nRF91 Series
          .. list-table:: Matter features support
diff --git a/samples/matter/light_bulb/README.rst b/samples/matter/light_bulb/README.rst
@@ -39,7 +39,7 @@ IPv6 network support
 
 The development kits for this sample offer the following IPv6 network support for Matter:
 
-* Matter over Thread is supported for ``nrf52840dk/nrf52840``, ``nrf5340dk/nrf5340/cpuapp``, ``nrf21540dk/nrf52840``, and ``nrf54l15dk/nrf54l15/cpuapp``.
+* Matter over Thread is supported for ``nrf52840dk/nrf52840``, ``nrf5340dk/nrf5340/cpuapp``, ``nrf21540dk/nrf52840``, ``nrf54l15dk/nrf54l15/cpuapp`` and ``nrf54lm20dk/nrf54lm20a/cpuapp``.
 * Matter over Wi-Fi is supported for ``nrf5340dk/nrf5340/cpuapp`` with the ``nrf7002ek`` shield attached or for ``nrf7002dk/nrf5340/cpuapp``.
 
 Overview
diff --git a/samples/matter/light_switch/README.rst b/samples/matter/light_switch/README.rst
@@ -43,7 +43,7 @@ IPv6 network support
 
 The development kits for this sample offer the following IPv6 network support for Matter:
 
-* Matter over Thread is supported for ``nrf52840dk/nrf52840``, ``nrf5340dk/nrf5340/cpuapp``, ``nrf21540dk/nrf52840``, and ``nrf54l15dk/nrf54l15/cpuapp``.
+* Matter over Thread is supported for ``nrf52840dk/nrf52840``, ``nrf5340dk/nrf5340/cpuapp``, ``nrf21540dk/nrf52840``, ``nrf54l15dk/nrf54l15/cpuapp`` and ``nrf54lm20dk/nrf54lm20a/cpuapp``.
 * Matter over Wi-Fi is supported for ``nrf5340dk/nrf5340/cpuapp`` with the ``nrf7002ek`` shield attached or for ``nrf7002dk/nrf5340/cpuapp``.
 
 Overview
diff --git a/samples/matter/lock/README.rst b/samples/matter/lock/README.rst
@@ -43,7 +43,7 @@ IPv6 network support
 
 The development kits for this sample offer the following IPv6 network support for Matter:
 
-* Matter over Thread is supported for the ``nrf52840dk/nrf52840``, ``nrf5340dk/nrf5340/cpuapp``, ``nrf21540dk/nrf52840``, and ``nrf54l15dk/nrf54l15/cpuapp`` board targets.
+* Matter over Thread is supported for the ``nrf52840dk/nrf52840``, ``nrf5340dk/nrf5340/cpuapp``, ``nrf21540dk/nrf52840``, ``nrf54l15dk/nrf54l15/cpuapp`` and ``nrf54lm20dk/nrf54lm20a/cpuapp`` board targets.
 * Matter over Wi-Fi is supported for the ``nrf5340dk/nrf5340/cpuapp`` board target with the ``nrf7002ek`` shield attached, for the ``nrf7002dk/nrf5340/cpuapp`` (2.4 GHz and 5 GHz), or ``nrf7002dk/nrf5340/cpuapp/nrf7001`` board targets (2.4 GHz only).
 * :ref:`Switching between Matter over Thread and Matter over Wi-Fi <matter_lock_sample_wifi_thread_switching>` is supported for ``nrf5340dk/nrf5340/cpuapp`` with the ``nrf7002ek`` shield attached, using the :ref:`switched Thread and Wi-Fi configuration <matter_lock_sample_custom_configs>`.
 
@@ -293,7 +293,7 @@ Device Firmware Upgrade support
 
    .. note::
       You can enable over-the-air Device Firmware Upgrade only on hardware platforms that have external flash memory.
-      Currently only nRF52840 DK, nRF5340 DK, nRF7002 DK and nRF54L15 DK support Device Firmware Upgrade feature.
+      Currently only nRF52840 DK, nRF5340 DK, nRF7002 DK, nRF54L15 DK and nRF54LM20 DK support Device Firmware Upgrade feature.
 
    The sample supports over-the-air (OTA) device firmware upgrade (DFU) using one of the two following protocols:
 
diff --git a/samples/matter/manufacturer_specific/README.rst b/samples/matter/manufacturer_specific/README.rst
@@ -32,7 +32,7 @@ IPv6 network support
 
 The development kits for this sample offer the following IPv6 network support for Matter:
 
-* Matter over Thread is supported for the ``nrf52840dk/nrf52840``, ``nrf5340dk/nrf5340/cpuapp``, ``nrf21540dk/nrf52840``, ``nrf54l15dk/nrf54l15/cpuapp``, and ``nrf54l15dk/nrf54l10/cpuapp`` board targets.
+* Matter over Thread is supported for the ``nrf52840dk/nrf52840``, ``nrf5340dk/nrf5340/cpuapp``, ``nrf21540dk/nrf52840``, ``nrf54l15dk/nrf54l15/cpuapp``, ``nrf54l15dk/nrf54l10/cpuapp`` and ``nrf54lm20dk/nrf54lm20a/cpuapp`` board targets.
 * Matter over Wi-Fi is supported for the ``nrf5340dk/nrf5340/cpuapp`` board target with the ``nrf7002ek`` shield attached, or for the ``nrf7002dk/nrf5340/cpuapp`` board target.
 
 Overview
diff --git a/samples/matter/template/README.rst b/samples/matter/template/README.rst
@@ -32,7 +32,7 @@ IPv6 network support
 
 The development kits for this sample offer the following IPv6 network support for Matter:
 
-* Matter over Thread is supported for the ``nrf52840dk/nrf52840``, ``nrf5340dk/nrf5340/cpuapp``, ``nrf21540dk/nrf52840``, ``nrf54l15dk/nrf54l15/cpuapp``, and ``nrf54l15dk/nrf54l10/cpuapp`` board targets.
+* Matter over Thread is supported for the ``nrf52840dk/nrf52840``, ``nrf5340dk/nrf5340/cpuapp``, ``nrf21540dk/nrf52840``, ``nrf54l15dk/nrf54l15/cpuapp``, ``nrf54l15dk/nrf54l10/cpuapp`` and ``nrf54lm20dk/nrf54lm20a/cpuapp`` board targets.
 * Matter over Wi-Fi is supported for the ``nrf5340dk/nrf5340/cpuapp`` board target with the ``nrf7002ek`` shield attached, or for the ``nrf7002dk/nrf5340/cpuapp`` board target.
 
 Overview
@@ -133,7 +133,7 @@ For example:
 Matter template using only internal memory
 ==========================================
 
-For the nRF54L15 DK, you can configure the sample to use only the internal RRAM for storage.
+For the nRF54L15 DK and nRF54LM20 DK, you can configure the sample to use only the internal RRAM for storage.
 It applies to the DFU as well, which means that both the currently running firmware and the new firmware to be updated will be stored within the device's internal RRAM memory.
 See the Device Firmware Upgrade support section above for information about the DFU process.
 
