diff --git a/build/scripts/Targets/TargetPhysicalInterface.php b/build/scripts/Targets/TargetPhysicalInterface.php
index 228be08d..f4fe6ef6 100644
--- a/build/scripts/Targets/TargetPhysicalInterface.php
+++ b/build/scripts/Targets/TargetPhysicalInterface.php
@@ -8,6 +8,7 @@ enum TargetPhysicalInterface: string
     case PDI = 'pdi';
     case UPDI = 'updi';
     case DEBUG_WIRE = 'debug_wire';
+    case SDI = 'sdi';
 
     public function supportsDebugging(): bool
     {
@@ -22,6 +23,7 @@ enum TargetPhysicalInterface: string
             self::PDI => 'PDI',
             self::UPDI => 'UPDI',
             self::DEBUG_WIRE => 'debugWIRE',
+            self::SDI => 'SDI',
             default => 'Other'
         };
     }
@@ -33,6 +35,7 @@ enum TargetPhysicalInterface: string
             self::PDI => 'pdi',
             self::UPDI => 'updi',
             self::DEBUG_WIRE => 'debug-wire',
+            self::SDI => 'sdi',
             default => null
         };
     }
diff --git a/src/ProjectConfig.cpp b/src/ProjectConfig.cpp
index 296d1a73..fa59bf87 100644
--- a/src/ProjectConfig.cpp
+++ b/src/ProjectConfig.cpp
@@ -171,6 +171,7 @@ TargetConfig::TargetConfig(const YAML::Node& targetNode) {
         {"pdi", TargetPhysicalInterface::PDI},
         {"jtag", TargetPhysicalInterface::JTAG},
         {"updi", TargetPhysicalInterface::UPDI},
+        {"sdi", TargetPhysicalInterface::SDI},
     };
 
     if (!targetNode["physicalInterface"]) {
diff --git a/src/Targets/TargetDescription/TargetDescriptionFile.cpp b/src/Targets/TargetDescription/TargetDescriptionFile.cpp
index ed5586f3..7322b309 100644
--- a/src/Targets/TargetDescription/TargetDescriptionFile.cpp
+++ b/src/Targets/TargetDescription/TargetDescriptionFile.cpp
@@ -162,6 +162,7 @@ namespace Targets::TargetDescription
             {"jtag", TargetPhysicalInterface::JTAG},
             {"pdi", TargetPhysicalInterface::PDI},
             {"isp", TargetPhysicalInterface::ISP},
+            {"sdi", TargetPhysicalInterface::SDI},
         };
 
         auto output = std::set<TargetPhysicalInterface>{};
diff --git a/src/Targets/TargetPhysicalInterface.cpp b/src/Targets/TargetPhysicalInterface.cpp
index 46b26684..4d16858f 100644
--- a/src/Targets/TargetPhysicalInterface.cpp
+++ b/src/Targets/TargetPhysicalInterface.cpp
@@ -9,6 +9,7 @@ namespace Targets
             {TargetPhysicalInterface::PDI, "PDI"},
             {TargetPhysicalInterface::JTAG, "JTAG"},
             {TargetPhysicalInterface::UPDI, "UPDI"},
+            {TargetPhysicalInterface::SDI, "SDI"},
         };
     }
 }
diff --git a/src/Targets/TargetPhysicalInterface.hpp b/src/Targets/TargetPhysicalInterface.hpp
index 93a590f6..00a065f3 100644
--- a/src/Targets/TargetPhysicalInterface.hpp
+++ b/src/Targets/TargetPhysicalInterface.hpp
@@ -13,6 +13,7 @@ namespace Targets
         DEBUG_WIRE,
         PDI,
         UPDI,
+        SDI,
     };
 
     /**