diff --git a/boards/cc2650stk/include/periph_conf.h b/boards/cc2650stk/include/periph_conf.h
index a3a76a83d3..4c7825f49e 100644
--- a/boards/cc2650stk/include/periph_conf.h
+++ b/boards/cc2650stk/include/periph_conf.h
@@ -35,6 +35,10 @@ extern "C" {
 
 /**
  * @name    Timer configuration
+ *
+ * General purpose timers (GPT[0-3]) are configured consecutively and in order
+ * (without gaps) starting from GPT0, i.e. if multiple timers are enabled.
+ *
  * @{
  */
 static const timer_conf_t timer_config[] = {
diff --git a/cpu/cc26x0/include/periph_cpu.h b/cpu/cc26x0/include/periph_cpu.h
index 20835b039c..7bd8e4e0a0 100644
--- a/cpu/cc26x0/include/periph_cpu.h
+++ b/cpu/cc26x0/include/periph_cpu.h
@@ -57,19 +57,20 @@ typedef enum {
     GPIO_RISING = IOCFG_EDGEDET_RISING,
     GPIO_BOTH = IOCFG_EDGEDET_BOTH
 } gpio_flank_t;
-#endif /* ndef DOXYGEN */
 
 /**
  * @brief   Configuration of low-level general purpose timers
  *
- * @note Timers *must* be configured consecutively and in order (without gaps)
- *       starting from GPT0, specifically if multiple timers are enabled.
+ * General purpose timers (GPT[0-3]) are configured consecutively and in order
+ * (without gaps) starting from GPT0, i.e. if multiple timers are enabled.
  */
 typedef struct {
     uint8_t     cfg;    /**< timer config [16,32 Bit] */
     uint8_t     chn;    /**< number of channels [1,2] */
 } timer_conf_t;
 
+#endif /* ifndef DOXYGEN */
+
 #ifdef __cplusplus
 }
 #endif