diff --git a/include/libopencm3/stm32/h7/memorymap.h b/include/libopencm3/stm32/h7/memorymap.h
index 2f3816a4..8771db3c 100644
--- a/include/libopencm3/stm32/h7/memorymap.h
+++ b/include/libopencm3/stm32/h7/memorymap.h
@@ -25,6 +25,7 @@
 /* Memory map for all busses */
 #define FLASH_BASE          (0x08000000U)
 #define PERIPH_BASE         (0x40000000U)
+#define SYSTEM_MEM_BASE     (0x1ff00000U)
 #define PERIPH_BASE_APB1    (PERIPH_BASE + 0x00000000U)
 #define PERIPH_BASE_APB2    (PERIPH_BASE + 0x00010000U)
 #define PERIPH_BASE_APB3    (PERIPH_BASE + 0x10000000U)
@@ -182,4 +183,11 @@
 /* Debug/Trace Peripherals */
 #define DBGMCU_BASE         0x5C001000U
 
+/* Device Electronic Signature */
+#define DESIG_FLASH_SIZE_BASE (SYSTEM_MEM_BASE + 0x1E880U)
+#define DESIG_UNIQUE_ID_BASE  (SYSTEM_MEM_BASE + 0x1E800U)
+#define DESIG_UNIQUE_ID0		MMIO32(DESIG_UNIQUE_ID_BASE)
+#define DESIG_UNIQUE_ID1		MMIO32(DESIG_UNIQUE_ID_BASE + 4)
+#define DESIG_UNIQUE_ID2		MMIO32(DESIG_UNIQUE_ID_BASE + 8)
+
 #endif /*LIBOPENCM3_MEMORYMAP_H*/