Index: firmware/App/Services/FpgaDD.c
===================================================================
diff -u -r84b30e2da7c4374d06ef068d3cb2b5c0c4fabccd -r43c231c0f9a56e2481f94cdbc51f45ef1af23c46
--- firmware/App/Services/FpgaDD.c	(.../FpgaDD.c)	(revision 84b30e2da7c4374d06ef068d3cb2b5c0c4fabccd)
+++ firmware/App/Services/FpgaDD.c	(.../FpgaDD.c)	(revision 43c231c0f9a56e2481f94cdbc51f45ef1af23c46)
@@ -318,7 +318,7 @@
     U16 fpgaD18PresTemp;                        ///< Reg 534. D18 MPM pressure sensor RAW temperature data
     U16 fpgaD41PresPressure;                    ///< Reg 536. D41 MPM pressure sensor RAW pressure data
     U16 fpgaD41PresTemp;                        ///< Reg 538. D41 MPM pressure sensor RAW temperature data
-    U32 fpgaAvailableRegister1;                 ///< Reg 540. Available register 1
+    U32 fpgaD92SpeedCnt;                        ///< Reg 540. D92 Substitution Pump Hall sensor speed counter.
     U08 fpgaHallSensInputs;                     ///< Reg 544. Hall sensor Inputs
     U08 fpgaD42TxFIFOCnt;                       ///< Reg 545. Blood leak sensor transmit FIFO count
     U16 fpgaD42RxErrorCnt;                      ///< Reg 546. Blood leak sensor Receive error count
@@ -4000,4 +4000,17 @@
 {
     return fpgaSensorReadings.fpgaP18CalMemCounter;
 }
+
+/*********************************************************************//**
+ * @brief
+ * The getFPGAD92PumpHallSenseCount function gets substitution pump, D92,
+ * hall sensor speed counter.
+ * @details \b Inputs: fpgaD92SpeedCnt
+ * @details \b Outputs: none
+ * @return substitution pump hall sense pulse width
+ *************************************************************************/
+U32 getFPGAD92PumpHallSenseCount( void )
+{
+    return fpgaSensorReadings.fpgaD92SpeedCnt;
+}
 /**@}*/