diff --git a/targets/TARGET_RENESAS/TARGET_RZ_A1H/can_api.c b/targets/TARGET_RENESAS/TARGET_RZ_A1H/can_api.c
index 10fb22aa6b..1c22489be2 100644
--- a/targets/TARGET_RENESAS/TARGET_RZ_A1H/can_api.c
+++ b/targets/TARGET_RENESAS/TARGET_RZ_A1H/can_api.c
@@ -581,6 +581,7 @@ void can_free(can_t *obj) {
 }
 
 int can_frequency(can_t *obj, int f) {
+    __IO uint32_t *dmy_cfcc;
     int retval = 0;
     
     if (f <= 1000000) {
@@ -590,6 +591,12 @@ int can_frequency(can_t *obj, int f) {
         can_set_frequency(obj, f);
         /* set Channel Communication mode */
         can_set_channel_mode(obj->ch, CH_COMM);
+        /* restore  CFE bit since it is cleared */
+        /* Use send/receive FIFO buffer */
+        dmy_cfcc = CFCC_TBL[obj->ch][CAN_SEND];
+        *dmy_cfcc |= 0x01;
+        dmy_cfcc = CFCC_TBL[obj->ch][CAN_RECV];
+        *dmy_cfcc |= 0x01;
         retval = 1;
     }
 
diff --git a/targets/TARGET_RENESAS/TARGET_VK_RZ_A1H/can_api.c b/targets/TARGET_RENESAS/TARGET_VK_RZ_A1H/can_api.c
index e003b8bb94..7b6cf12e4e 100644
--- a/targets/TARGET_RENESAS/TARGET_VK_RZ_A1H/can_api.c
+++ b/targets/TARGET_RENESAS/TARGET_VK_RZ_A1H/can_api.c
@@ -598,6 +598,7 @@ void can_free(can_t *obj) {
 }
 
 int can_frequency(can_t *obj, int f) {
+    __IO uint32_t *dmy_cfcc;
     int retval = 0;
     
     if (f <= 1000000) {
@@ -607,6 +608,12 @@ int can_frequency(can_t *obj, int f) {
         can_set_frequency(obj, f);
         /* set Channel Communication mode */
         can_set_channel_mode(obj->ch, CH_COMM);
+        /* restore  CFE bit since it is cleared */
+        /* Use send/receive FIFO buffer */
+        dmy_cfcc = CFCC_TBL[obj->ch][CAN_SEND];
+        *dmy_cfcc |= 0x01;
+        dmy_cfcc = CFCC_TBL[obj->ch][CAN_RECV];
+        *dmy_cfcc |= 0x01;
         retval = 1;
     }