diff --git a/components/soc/esp32/include/hal/rmt_ll.h b/components/soc/esp32/include/hal/rmt_ll.h
index 1749b2be37..159c92585a 100644
--- a/components/soc/esp32/include/hal/rmt_ll.h
+++ b/components/soc/esp32/include/hal/rmt_ll.h
@@ -270,9 +270,10 @@ static inline void rmt_ll_set_carrier_to_level(rmt_dev_t *dev, uint32_t channel,
     dev->conf_ch[channel].conf0.carrier_out_lv = level;
 }
 
+//Writes items to the specified TX channel memory with the given offset and writen length.
+//the caller should ensure that (length + off) <= (memory block * RMT_CHANNEL_MEM_WORDS)
 static inline void rmt_ll_write_memory(rmt_mem_t *mem, uint32_t channel, const rmt_item32_t *data, uint32_t length, uint32_t off)
 {
-    length = (off + length) > RMT_CHANNEL_MEM_WORDS ? (RMT_CHANNEL_MEM_WORDS - off) : length;
     for (uint32_t i = 0; i < length; i++) {
         mem->chan[channel].data32[i + off].val = data[i].val;
     }
diff --git a/components/soc/esp32s2beta/include/hal/rmt_ll.h b/components/soc/esp32s2beta/include/hal/rmt_ll.h
index 777c5cf9c4..0bf969a61b 100644
--- a/components/soc/esp32s2beta/include/hal/rmt_ll.h
+++ b/components/soc/esp32s2beta/include/hal/rmt_ll.h
@@ -263,9 +263,10 @@ static inline void rmt_ll_set_carrier_to_level(rmt_dev_t *dev, uint32_t channel,
     dev->conf_ch[channel].conf0.carrier_out_lv = level;
 }
 
+//Writes items to the specified TX channel memory with the given offset and writen length.
+//the caller should ensure that (length + off) <= (memory block * RMT_CHANNEL_MEM_WORDS)
 static inline void rmt_ll_write_memory(rmt_mem_t *mem, uint32_t channel, const rmt_item32_t *data, uint32_t length, uint32_t off)
 {
-    length = (off + length) > RMT_CHANNEL_MEM_WORDS ? (RMT_CHANNEL_MEM_WORDS - off) : length;
     for (uint32_t i = 0; i < length; i++) {
         mem->chan[channel].data32[i + off].val = data[i].val;
     }
diff --git a/components/soc/include/hal/rmt_hal.h b/components/soc/include/hal/rmt_hal.h
index 07102b5c71..14c66a0bd3 100644
--- a/components/soc/include/hal/rmt_hal.h
+++ b/components/soc/include/hal/rmt_hal.h
@@ -134,6 +134,7 @@ uint32_t rmt_hal_receive(rmt_hal_context_t *hal, uint32_t channel, rmt_item32_t
  * @param src: RMT items to transmit
  * @param length: length of RMT items to transmit
  * @param offset: offset of RMT internal memory to store the items
+ * @note The caller should ensure that (length + offset) <= (memory block * RMT_CHANNEL_MEM_WORDS).
  */
 void rmt_hal_transmit(rmt_hal_context_t *hal, uint32_t channel, const rmt_item32_t *src, uint32_t length, uint32_t offset);