diff --git a/arch/platform/jn516x/Makefile.jn516x b/arch/platform/jn516x/Makefile.jn516x
index 50a008374..bb654ceb8 100644
--- a/arch/platform/jn516x/Makefile.jn516x
+++ b/arch/platform/jn516x/Makefile.jn516x
@@ -81,7 +81,7 @@ OBJCOPY:=$(CROSS_COMPILE)-objcopy
 OBJDUMP:=$(CROSS_COMPILE)-objdump
 
 ARCH = jn516x-ccm-star.c exceptions.c rtimer-arch.c rtimer-arch-slow.c \
-       slip_uart0.c clock.c micromac-radio.c \
+       slip_uart0.c clock.c micromac-radio.c int-master.c \
        node-id.c watchdog.c slip.c sprintf.c
 # Default uart0 for printf and slip
 TARGET_WITH_UART0 ?= 1
diff --git a/arch/platform/jn516x/int-master.c b/arch/platform/jn516x/int-master.c
new file mode 100644
index 000000000..d86bd801b
--- /dev/null
+++ b/arch/platform/jn516x/int-master.c
@@ -0,0 +1,74 @@
+/*
+ * Copyright (c) 2017, George Oikonomou - http://www.spd.gr
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the copyright holder nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+/*---------------------------------------------------------------------------*/
+/**
+ * \file
+ * Master interrupt manipulation implementation for the JN516x
+ */
+/*---------------------------------------------------------------------------*/
+#include "contiki.h"
+#include "MicroSpecific.h"
+#include "sys/int-master.h"
+
+#include <stdbool.h>
+/*---------------------------------------------------------------------------*/
+void
+int_master_enable(void)
+{
+  MICRO_ENABLE_INTERRUPTS();
+}
+/*---------------------------------------------------------------------------*/
+int_master_status_t
+int_master_read_and_disable(void)
+{
+  int_master_status_t status;
+
+  MICRO_DISABLE_AND_SAVE_INTERRUPTS(status);
+
+  return status;
+}
+/*---------------------------------------------------------------------------*/
+void
+int_master_status_set(int_master_status_t status)
+{
+  MICRO_RESTORE_INTERRUPTS(status);
+}
+/*---------------------------------------------------------------------------*/
+bool
+int_master_is_enabled(void)
+{
+  int_master_status_t status;
+
+  asm volatile ("bw.mfspr %0, r0, 17;" :"=r"(status) : );
+
+  return status;
+}
+/*---------------------------------------------------------------------------*/