diff --git a/libnfc/chips/pn53x.c b/libnfc/chips/pn53x.c
index ae5259c..aa21f77 100644
--- a/libnfc/chips/pn53x.c
+++ b/libnfc/chips/pn53x.c
@@ -1160,18 +1160,14 @@ pn53x_initiator_transceive_bits_timed (nfc_device_t * pnd, const byte_t * pbtTx,
   // E.g. on SCL3711 timer settings are reset by 0x42 InCommunicateThru command to:
   //  631a=82 631b=a5 631c=02 631d=00
   // Prepare FIFO
-  pn53x_write_register (pnd, REG_CIU_COMMAND, 0xFF, SYMBOL_COMMAND & SYMBOL_COMMAND_TRANSCEIVE);
-  pn53x_writeback_register(pnd);
-  pn53x_write_register (pnd, REG_CIU_FIFOLEVEL, 0xFF, SYMBOL_FLUSH_BUFFER);
-  pn53x_writeback_register(pnd);
+  pn53x_WriteRegister (pnd, REG_CIU_COMMAND, SYMBOL_COMMAND & SYMBOL_COMMAND_TRANSCEIVE);
+  pn53x_WriteRegister (pnd, REG_CIU_FIFOLEVEL, SYMBOL_FLUSH_BUFFER);
   for (i=0; i< ((szTxBits / 8) + 1); i++) {
-    pn53x_write_register (pnd, REG_CIU_FIFODATA, 0xFF, pbtTx[i]);
-    pn53x_writeback_register(pnd);
+    pn53x_WriteRegister (pnd, REG_CIU_FIFODATA, pbtTx[i]);
   }
 
   // Send data
-  pn53x_write_register (pnd, REG_CIU_BIT_FRAMING, 0xFF, SYMBOL_START_SEND | ((szTxBits % 8) & SYMBOL_TX_LAST_BITS));
-  pn53x_writeback_register(pnd);
+  pn53x_WriteRegister (pnd, REG_CIU_BIT_FRAMING, SYMBOL_START_SEND | ((szTxBits % 8) & SYMBOL_TX_LAST_BITS));
 
   // Recv data
   *pszRxBits = 0;
@@ -1226,18 +1222,14 @@ pn53x_initiator_transceive_bytes_timed (nfc_device_t * pnd, const byte_t * pbtTx
   // E.g. on SCL3711 timer settings are reset by 0x42 InCommunicateThru command to:
   //  631a=82 631b=a5 631c=02 631d=00
   // Prepare FIFO
-  pn53x_write_register (pnd, REG_CIU_COMMAND, 0xFF, SYMBOL_COMMAND & SYMBOL_COMMAND_TRANSCEIVE);
-  pn53x_writeback_register(pnd);
-  pn53x_write_register (pnd, REG_CIU_FIFOLEVEL, 0xFF, SYMBOL_FLUSH_BUFFER);
-  pn53x_writeback_register(pnd);
+  pn53x_WriteRegister (pnd, REG_CIU_COMMAND, SYMBOL_COMMAND & SYMBOL_COMMAND_TRANSCEIVE);
+  pn53x_WriteRegister (pnd, REG_CIU_FIFOLEVEL, SYMBOL_FLUSH_BUFFER);
   for (i=0; i< szTx; i++) {
-    pn53x_write_register (pnd, REG_CIU_FIFODATA, 0xFF, pbtTx[i]);
-    pn53x_writeback_register(pnd);
+    pn53x_WriteRegister (pnd, REG_CIU_FIFODATA, pbtTx[i]);
   }
 
   // Send data
-  pn53x_write_register (pnd, REG_CIU_BIT_FRAMING, 0xFF, SYMBOL_START_SEND);
-  pn53x_writeback_register(pnd);
+  pn53x_WriteRegister (pnd, REG_CIU_BIT_FRAMING, SYMBOL_START_SEND);
 
   // Recv data
   *pszRx = 0;