TMS320F28335: I2C interrupt not trigering

I have a driver written for the I2C module that appears to be sending the correct data to a PCA9534 port expander but I am having difficulty getting the I2C interrupts working.  Below is my init function so please let me know what I'd doing wrong.

void I2CA_Init(void)
{
   I2CBusReset();                  // I/O control of I2C lines to force a bus reset  (11 clocks followed by a stop condition)

   I2caRegs.I2CMDR.bit.IRS = 0; // Reset the I2C module
   I2caRegs.I2CPSC.all = 127;   // Prescaler - This is set high so the data speed will be low and can be seen on my scope

   InitI2CGpio();

   I2caRegs.I2CCLKL = 10;           // NOTE: must be non zero
   I2caRegs.I2CCLKH = 5;            // NOTE: must be non zero

   I2caRegs.I2CIER.bit.ARDY = 1;    //enable basic I2C-interrupt - access ready
   I2caRegs.I2CIER.bit.NACK = 1;    //enables I2C NACK interrupt: communication error handling
   I2caRegs.I2CIER.bit.SCD = 1;     //enables stop condition interrupt

   I2caRegs.I2CFFTX.all = 0;           //I2C Transmit FIFO Register
   I2caRegs.I2CFFTX.bit.TXFFIL = 0;    //set the transmit interrupt level (bit field TXFFIL) to zero
   I2caRegs.I2CFFTX.bit.I2CFFEN = 1;   //Enable the FIFOs
   I2caRegs.I2CFFTX.bit.TXFFRST = 1;   //Enable the FIFO-transmit support

   I2caRegs.I2CFFRX.all = 0;           //I2C Receive FIFO Register
   I2caRegs.I2CFFRX.bit.RXFFIL = 2;    //default value for now, value will change depending on what is requested.
   I2caRegs.I2CFFRX.bit.RXFFRST = 1;   //Enable the FIFO-receiver support

   I2caRegs.I2CFFRX.bit.RXFFIENA = 0;  //disable thi FIFO RXinterrupt

   I2caRegs.I2CMDR.bit.BC=0;           // 8 bit data
   I2caRegs.I2CMDR.bit.RM=0;           // non repeat mode
   I2caRegs.I2CMDR.bit.FDF=0;
   
   DINT;
   EALLOW;
   PieVectTable.I2CINT1A = &i2c_basic_isr;   // set the isr routine

   PieCtrlRegs.PIEIER8.bit.INTx1 =1;         // enable the interrupt
   PieCtrlRegs.PIECTRL.bit.ENPIE = 1;        // enable PIE
   PieCtrlRegs.PIEACK.bit.ACK8=1;            // clear the ACK bit
   IER |= M_INT8;                            // enable group 8 interrupts
   I2caRegs.I2CFFTX.bit.TXFFINTCLR = 1;      // clear any pending interrupt
   EDIS;
   EINT;
   I2caRegs.I2CMDR.bit.IRS = 1;        //Take I2C out of reset
   return;
}

The issue is that I'm never entering my ISR.  Any ideas?