diff --git a/doc/system_description/software.md b/doc/system_description/software.md
index 4170c68..58787dd 100644
--- a/doc/system_description/software.md
+++ b/doc/system_description/software.md
@@ -527,5 +527,9 @@ Assigned core prefixes:
 | `CDI_LAST`        |       | r         |        |          |           | Last word of CDI                                                        |
 | `RAM_ASLR`        | w     | invisible | 4B     | u32      |           | Address Space Randomization seed value for the RAM                      |
 | `RAM_SCRAMBLE`    | w     | invisible | 4B     | u32      |           | Data scrambling seed value for the RAM                                  |
+| `CPU_MON_CTRL`    | w     | w         | 4B     | u32      |           | Bit 0 enables CPU execution monitor. Can't be unset. Lock adresses      |
+| `CPU_MON_FIRST`   | w     | w         | 4B     | u32      |           | First address of the area monitored for execution attempts |
+| `CPU_MON_LAST`    | w     | w         | 4B     | u32      |           | Last address of the area monitored for execution attempts |
+
 
 [^3]: The UDS can only be read *once* per power-cycle.