diff --git a/df_datalink_sp/src/networking/phy_layer/phy_layer.c b/df_datalink_sp/src/networking/phy_layer/phy_layer.c
index 9e17587..97ceead 100644
--- a/df_datalink_sp/src/networking/phy_layer/phy_layer.c
+++ b/df_datalink_sp/src/networking/phy_layer/phy_layer.c
@@ -183,7 +183,7 @@ inline L1_FRAME_TYPE Phy_GetLastRecvFrameType(PHY_INST *instPtr)
 inline L1_FRAME_TYPE Phy_GetLastSendFrameType(PHY_INST *instPtr)
 {
 	ASSERT(instPtr != NULL);
-	if (instPtr->TOR.last != PHY_TOR_TX)
+	if (instPtr->tor.last != PHY_TOR_TX)
 	{
 		return L1_NONE_FRAME;
 	}
@@ -316,7 +316,7 @@ int32_t Phy_InstInit(PHY_INST **instPtr, PHY_CONFIG *phyConfig)
 	(*instPtr)->sendDataOffset = 0;
 	Phy_AntConfigInit(&((*instPtr)->antConfig));
 
-	memset(&((*instPtr))->TOR, PHY_TOR_SUSPEND, sizeof(PHY_RCD));
+	memset(&((*instPtr))->tor, PHY_TOR_SUSPEND, sizeof(PHY_RCD));
 	memset(&((*instPtr)->frameType), L1_NONE_FRAME, sizeof(PHY_RCD));
 	memset(&((*instPtr)->antNo), (int32_t)L1_INIT_BEAM_NO, sizeof(PHY_RCD));
 	memset(&((*instPtr)->beamNo), (int32_t)L1_INIT_ANT_NO, sizeof(PHY_RCD));
@@ -679,7 +679,7 @@ int32_t Phy_SetupNextSlot(PHY_INST *instPtr, PHY_TOR_TYPE txrxMode,
 	// Indicate physical layer that all the configurations were done. 
 	PhyWrite(instPtr, SLOT_CMD, SLOT_CMD_KEY);
 
-	Phy_RcdShift(&(instPtr->TOR), txrxMode);
+	Phy_RcdShift(&(instPtr->tor), txrxMode);
 	Phy_RcdShift(&(instPtr->frameType), frameType);
 	// TODO:
 	Phy_RcdShift(&(instPtr->antNo), L1_INIT_ANT_NO);
diff --git a/df_datalink_sp/src/networking/phy_layer/phy_layer.h b/df_datalink_sp/src/networking/phy_layer/phy_layer.h
index bdfa9b3..a21421f 100644
--- a/df_datalink_sp/src/networking/phy_layer/phy_layer.h
+++ b/df_datalink_sp/src/networking/phy_layer/phy_layer.h
@@ -223,7 +223,7 @@ typedef struct
 	PHY_RCD antNo;			  // antenna number record
 	PHY_RCD beamNo;			  // beam number record
 	PHY_RCD beamWd;			  // beam width record
-	PHY_RCD TOR;			  // tx rx state record
+	PHY_RCD tor;			  // tx rx state record
 	PHY_RCD frameType;		  // frame type record
 	uint32_t sendDataOffset;  // antenna configuration bram offset (to implement ping-pong data flow)
 	uint32_t antConfigOffset; // antenna configuration bram offset (to implement ping-pong data flow)