diff --git a/boards/chronos/include/board.h b/boards/chronos/include/board.h
index 633b13a4ba..81b26d7bb4 100644
--- a/boards/chronos/include/board.h
+++ b/boards/chronos/include/board.h
@@ -39,6 +39,7 @@ extern "C" {
 #define XTIMER                      (0)
 #define XTIMER_CHAN                 (0)
 #define XTIMER_MASK                 (0xffff0000)
+#define XTIMER_SHIFT_ON_COMPARE     (4)
 /** @} */
 
 /**
diff --git a/boards/msb-430/include/board.h b/boards/msb-430/include/board.h
index e44cd23b81..1cdd972143 100644
--- a/boards/msb-430/include/board.h
+++ b/boards/msb-430/include/board.h
@@ -44,6 +44,8 @@ extern "C" {
 #define XTIMER                      (0)
 #define XTIMER_CHAN                 (0)
 #define XTIMER_MASK                 (0xffff0000)
+#define XTIMER_SHIFT_ON_COMPARE     (4)
+#define XTIMER_BACKOFF              (40)
 /** @} */
 
 /**
diff --git a/boards/msb-430h/include/board.h b/boards/msb-430h/include/board.h
index 7f10989866..db1bee86a6 100644
--- a/boards/msb-430h/include/board.h
+++ b/boards/msb-430h/include/board.h
@@ -38,6 +38,8 @@ extern "C" {
 #define XTIMER                      (0)
 #define XTIMER_CHAN                 (0)
 #define XTIMER_MASK                 (0xffff0000)
+#define XTIMER_SHIFT_ON_COMPARE     (4)
+#define XTIMER_BACKOFF              (40)
 /** @} */
 
 /**
diff --git a/boards/telosb/include/board.h b/boards/telosb/include/board.h
index 3a971c530f..208a3d3af8 100644
--- a/boards/telosb/include/board.h
+++ b/boards/telosb/include/board.h
@@ -44,6 +44,8 @@ extern "C" {
 #define XTIMER                      (0)
 #define XTIMER_CHAN                 (0)
 #define XTIMER_MASK                 (0xffff0000)
+#define XTIMER_SHIFT_ON_COMPARE     (4)
+#define XTIMER_BACKOFF              (40)
 /** @} */
 
 /**
diff --git a/boards/wsn430-v1_3b/include/board.h b/boards/wsn430-v1_3b/include/board.h
index 4e23a2bdc9..6c038c7f02 100644
--- a/boards/wsn430-v1_3b/include/board.h
+++ b/boards/wsn430-v1_3b/include/board.h
@@ -46,6 +46,8 @@ extern "C" {
 #define XTIMER                      (0)
 #define XTIMER_CHAN                 (0)
 #define XTIMER_MASK                 (0xffff0000)
+#define XTIMER_SHIFT_ON_COMPARE     (4)
+#define XTIMER_BACKOFF              (40)
 /** @} */
 
 /**
diff --git a/boards/wsn430-v1_4/include/board.h b/boards/wsn430-v1_4/include/board.h
index 64805c9470..04c04adf24 100644
--- a/boards/wsn430-v1_4/include/board.h
+++ b/boards/wsn430-v1_4/include/board.h
@@ -46,6 +46,8 @@ extern "C" {
 #define XTIMER                      (0)
 #define XTIMER_CHAN                 (0)
 #define XTIMER_MASK                 (0xffff0000)
+#define XTIMER_SHIFT_ON_COMPARE     (4)
+#define XTIMER_BACKOFF              (40)
 /** @} */
 
 /**
diff --git a/boards/z1/include/board.h b/boards/z1/include/board.h
index 020b29ca06..9d6fa6964b 100644
--- a/boards/z1/include/board.h
+++ b/boards/z1/include/board.h
@@ -46,6 +46,8 @@ extern "C" {
 #define XTIMER                      (0)
 #define XTIMER_CHAN                 (0)
 #define XTIMER_MASK                 (0xffff0000)
+#define XTIMER_SHIFT_ON_COMPARE     (4)
+#define XTIMER_BACKOFF              (40)
 /** @} */
 
 /**