diff --git a/reference/config_files/settings.yml.rst b/reference/config_files/settings.yml.rst
index f46483075882..9e449098d228 100644
--- a/reference/config_files/settings.yml.rst
+++ b/reference/config_files/settings.yml.rst
@@ -10,12 +10,12 @@ are possible. These are the **default** values, but it is possible to customize
 
     # Only for cross building, 'os_build/arch_build' is the system that runs Conan
     os_build: [Windows, WindowsStore, Linux, Macos, FreeBSD, SunOS, AIX]
-    arch_build: [x86, x86_64, ppc32be, ppc32, ppc64le, ppc64, armv5el, armv5hf, armv6, armv7, armv7hf, armv7s, armv7k, armv8, armv8_32, armv8.3, sparc, sparcv9, mips, mips64, avr, s390, s390x, sh4le]
+    arch_build: [x86, x86_64, ppc32be, ppc32, ppc64le, ppc64, armv5el, armv5hf, armv6, armv7, armv7hf, armv7s, armv7k, armv8, armv8_32, armv8.3, sparc, sparcv9, mips, mips64, avr, s390, s390x, sh4le, e2k-v2, e2k-v3, e2k-v4, e2k-v5, e2k-v6, e2k-v7]
 
     # Only for building cross compilation tools, 'os_target/arch_target' is the system for
     # which the tools generate code
     os_target: [Windows, Linux, Macos, Android, iOS, watchOS, tvOS, FreeBSD, SunOS, AIX, Arduino, Neutrino]
-    arch_target: [x86, x86_64, ppc32be, ppc32, ppc64le, ppc64, armv5el, armv5hf, armv6, armv7, armv7hf, armv7s, armv7k, armv8, armv8_32, armv8.3, sparc, sparcv9, mips, mips64, avr, s390, s390x, asm.js, wasm, sh4le]
+    arch_target: [x86, x86_64, ppc32be, ppc32, ppc64le, ppc64, armv5el, armv5hf, armv6, armv7, armv7hf, armv7s, armv7k, armv8, armv8_32, armv8.3, sparc, sparcv9, mips, mips64, avr, s390, s390x, asm.js, wasm, sh4le, e2k-v2, e2k-v3, e2k-v4, e2k-v5, e2k-v6, e2k-v7]
 
     # Rest of the settings are "host" settings:
     # - For native building/cross building: Where the library/program will run.
@@ -47,7 +47,7 @@ are possible. These are the **default** values, but it is possible to customize
         Emscripten:
         Neutrino:
             version: ["6.4", "6.5", "6.6", "7.0"]
-    arch: [x86, x86_64, ppc32be, ppc32, ppc64le, ppc64, armv4, armv4i, armv5el, armv5hf, armv6, armv7, armv7hf, armv7s, armv7k, armv8, armv8_32, armv8.3, sparc, sparcv9, mips, mips64, avr, s390, s390x, asm.js, wasm, sh4le]
+    arch: [x86, x86_64, ppc32be, ppc32, ppc64le, ppc64, armv4, armv4i, armv5el, armv5hf, armv6, armv7, armv7hf, armv7s, armv7k, armv8, armv8_32, armv8.3, sparc, sparcv9, mips, mips64, avr, s390, s390x, asm.js, wasm, sh4le, e2k-v2, e2k-v3, e2k-v4, e2k-v5, e2k-v6, e2k-v7]
     compiler:
         sun-cc:
             version: ["5.10", "5.11", "5.12", "5.13", "5.14"]
@@ -99,6 +99,13 @@ are possible. These are the **default** values, but it is possible to customize
         qcc:
             version: ["4.4", "5.4"]
             libcxx: [cxx, gpp, cpp, cpp-ne, accp, acpp-ne, ecpp, ecpp-ne]
+        mcst-lcc:
+            version: ["1.19", "1.20", "1.21", "1.22", "1.23", "1.24", "1.25"]
+            base:
+                gcc:
+                    <<: *gcc
+                    threads: [None]
+                    exceptions: [None]
 
     build_type: [None, Debug, Release, RelWithDebInfo, MinSizeRel]
     cppstd: [None, 98, gnu98, 11, gnu11, 14, gnu14, 17, gnu17, 20, gnu20]  # Deprecated, use compiler.cppstd
@@ -182,6 +189,19 @@ Here you can find a brief explanation of each of the architectures defined as ``
 
 - **sh4le**: The Hitachi SH-4 SuperH architecture.
 
+- **e2k-v2**: The Elbrus 2000 v2 512 bit VLIW (Very Long Instruction Word) architecture (Elbrus 2CM, Elbrus 2C+ CPUs) originally developed by MCST (Moscow Center of SPARC Technologies).
+
+- **e2k-v3**: The Elbrus 2000 v3 512 bit VLIW (Very Long Instruction Word) architecture (Elbrus 2S, aka Elbrus 4C, CPU) originally developed by MCST (Moscow Center of SPARC Technologies).
+
+- **e2k-v4**: The Elbrus 2000 v4 512 bit VLIW (Very Long Instruction Word) architecture (Elbrus 8C, Elbrus 8C1, Elbrus 1C+ and Elbrus 1CK CPUs) originally developed by MCST (Moscow Center of SPARC Technologies).
+
+- **e2k-v5**: The Elbrus 2000 v5 512 bit VLIW (Very Long Instruction Word) architecture (Elbrus 8C2 ,aka Elbrus 8CB, CPU) originally developed by MCST (Moscow Center of SPARC Technologies).
+
+- **e2k-v6**: The Elbrus 2000 v6 512 bit VLIW (Very Long Instruction Word) architecture (Elbrus 2C3, Elbrus 12C and Elbrus 16C CPUs) originally developed by MCST (Moscow Center of SPARC Technologies).
+
+- **e2k-v7**: The Elbrus 2000 v7 512 bit VLIW (Very Long Instruction Word) architecture (Elbrus 32C CPU) originally developed by MCST (Moscow Center of SPARC Technologies).
+
+
 C++ standard libraries (aka compiler.libcxx)
 --------------------------------------------