diff --git a/drivers/exti_regs.h b/drivers/exti_regs.h
new file mode 100644
index 0000000..c5d884f
--- /dev/null
+++ b/drivers/exti_regs.h
@@ -0,0 +1,190 @@
+/** @file exti_regs.h
+ * Module defining the EXTI registers
+ *
+ * Mainly made to be used by the exti module. It is recommanded to go through
+ * the functions provided by that module instead of directly using the registers
+ * defined here.
+ */
+
+#ifndef _EXTI_REGS_H_
+#define _EXTI_REGS_H_
+
+//--includes--------------------------------------------------------------------
+
+#include "stdint.h"
+
+
+//--type definitions------------------------------------------------------------
+
+#define EXTI_BASE_ADDRESS 0x40010400
+
+union EXTI_IMR {
+	struct __attribute__((packed)) {
+		uint32_t MR0:1;
+		uint32_t MR1:1;
+		uint32_t MR2:1;
+		uint32_t MR3:1;
+		uint32_t MR4:1;
+		uint32_t MR5:1;
+		uint32_t MR6:1;
+		uint32_t MR7:1;
+		uint32_t MR8:1;
+		uint32_t MR9:1;
+		uint32_t MR10:1;
+		uint32_t MR11:1;
+		uint32_t MR12:1;
+		uint32_t MR13:1;
+		uint32_t MR14:1;
+		uint32_t MR15:1;
+		uint32_t MR16:1;
+		uint32_t MR17:1;
+		uint32_t MR18:1;
+		uint32_t reserved1:13;
+	};
+	uint32_t word;
+};
+
+union EXTI_EMR {
+	struct __attribute__((packed)) {
+		uint32_t MR0:1;
+		uint32_t MR1:1;
+		uint32_t MR2:1;
+		uint32_t MR3:1;
+		uint32_t MR4:1;
+		uint32_t MR5:1;
+		uint32_t MR6:1;
+		uint32_t MR7:1;
+		uint32_t MR8:1;
+		uint32_t MR9:1;
+		uint32_t MR10:1;
+		uint32_t MR11:1;
+		uint32_t MR12:1;
+		uint32_t MR13:1;
+		uint32_t MR14:1;
+		uint32_t MR15:1;
+		uint32_t MR16:1;
+		uint32_t MR17:1;
+		uint32_t MR18:1;
+		uint32_t reserved1:13;
+	};
+	uint32_t word;
+};
+
+union EXTI_RTSR {
+	struct __attribute__((packed)) {
+		uint32_t TR0:1;
+		uint32_t TR1:1;
+		uint32_t TR2:1;
+		uint32_t TR3:1;
+		uint32_t TR4:1;
+		uint32_t TR5:1;
+		uint32_t TR6:1;
+		uint32_t TR7:1;
+		uint32_t TR8:1;
+		uint32_t TR9:1;
+		uint32_t TR10:1;
+		uint32_t TR11:1;
+		uint32_t TR12:1;
+		uint32_t TR13:1;
+		uint32_t TR14:1;
+		uint32_t TR15:1;
+		uint32_t TR16:1;
+		uint32_t TR17:1;
+		uint32_t TR18:1;
+		uint32_t reserved1:13;
+	};
+	uint32_t word;
+};
+
+union EXTI_FTSR {
+	struct __attribute__((packed)) {
+		uint32_t TR0:1;
+		uint32_t TR1:1;
+		uint32_t TR2:1;
+		uint32_t TR3:1;
+		uint32_t TR4:1;
+		uint32_t TR5:1;
+		uint32_t TR6:1;
+		uint32_t TR7:1;
+		uint32_t TR8:1;
+		uint32_t TR9:1;
+		uint32_t TR10:1;
+		uint32_t TR11:1;
+		uint32_t TR12:1;
+		uint32_t TR13:1;
+		uint32_t TR14:1;
+		uint32_t TR15:1;
+		uint32_t TR16:1;
+		uint32_t TR17:1;
+		uint32_t TR18:1;
+		uint32_t reserved1:13;
+	};
+	uint32_t word;
+};
+
+union EXTI_SWIER {
+	struct __attribute__((packed)) {
+		uint32_t SWIER0:1;
+		uint32_t SWIER1:1;
+		uint32_t SWIER2:1;
+		uint32_t SWIER3:1;
+		uint32_t SWIER4:1;
+		uint32_t SWIER5:1;
+		uint32_t SWIER6:1;
+		uint32_t SWIER7:1;
+		uint32_t SWIER8:1;
+		uint32_t SWIER9:1;
+		uint32_t SWIER10:1;
+		uint32_t SWIER11:1;
+		uint32_t SWIER12:1;
+		uint32_t SWIER13:1;
+		uint32_t SWIER14:1;
+		uint32_t SWIER15:1;
+		uint32_t SWIER16:1;
+		uint32_t SWIER17:1;
+		uint32_t SWIER18:1;
+		uint32_t reserved1:13;
+	};
+	uint32_t word;
+};
+
+union EXTI_PR {
+	struct __attribute__((packed)) {
+		uint32_t PR0:1;
+		uint32_t PR1:1;
+		uint32_t PR2:1;
+		uint32_t PR3:1;
+		uint32_t PR4:1;
+		uint32_t PR5:1;
+		uint32_t PR6:1;
+		uint32_t PR7:1;
+		uint32_t PR8:1;
+		uint32_t PR9:1;
+		uint32_t PR10:1;
+		uint32_t PR11:1;
+		uint32_t PR12:1;
+		uint32_t PR13:1;
+		uint32_t PR14:1;
+		uint32_t PR15:1;
+		uint32_t PR16:1;
+		uint32_t PR17:1;
+		uint32_t PR18:1;
+		uint32_t reserved1:13;
+	};
+	uint32_t word;
+};
+
+struct __attribute__((packed)) EXTI {
+	union EXTI_IMR IMR;
+	union EXTI_EMR EMR;
+	union EXTI_RTSR RTSR;
+	union EXTI_FTSR FTSR;
+	union EXTI_SWIER SWIER;
+	union EXTI_PR PR;
+};
+
+
+//--functions-------------------------------------------------------------------
+
+#endif //_EXTI_REGS_H_
+