TMS320F28035-EP: SPI communication between MCU and DAC is not working

I changed SPICHAR, CLKPOLARITY, CLK_PHASE as given below and got the waveform as shown in screenshot. Still CS is not going low

SPICCR:  1111

SPICHAR: 0-3 : 16 bit word (F)

SPILBK : 4 : Loop back disabled

CLKPOLARITY : 6 := Data is output on rising edge and input on falling edge. When no SPI data is sent, SPICLK is at low level.

The data input and output edges depend on the value of the CLOCK PHASE bit

SPICTL : 0110

SPIINTENA:  Disables the interrupt. (0)

TALK : Enables transmission(1`)

MASTER_SLAVE :  SPI is configured as a master.(1)

CLK_PHASE : = Normal SPI clocking scheme, depending on the CLOCK POLARITY bit (SPICCR.6) (0)

void spi_configureSPIAModule(void)
{
    EALLOW;

    GpioCtrlRegs.GPAMUX2.bit.GPIO16 = 1; // SPISIMOA (MOSI)
    GpioCtrlRegs.GPAMUX2.bit.GPIO17 = 1; // SPISOMIA (MISO)
    GpioCtrlRegs.GPAMUX2.bit.GPIO18 = 1; // SPICLKA (CLK)
    GpioCtrlRegs.GPAMUX2.bit.GPIO19 = 1; // SPISTEA (CS)

    GpioCtrlRegs.GPAPUD.bit.GPIO16 = 0;
    GpioCtrlRegs.GPAPUD.bit.GPIO17 = 0;
    GpioCtrlRegs.GPAPUD.bit.GPIO18 = 0;
    GpioCtrlRegs.GPAPUD.bit.GPIO19 = 0;

    // SPI configuration
    SpiaRegs.SPICCR.bit.SPISWRESET = 0;   // Hold SPI in reset
    SpiaRegs.SPICCR.all = 0x000F;         // 16-bit, CPOL = 0, reset held
    SpiaRegs.SPICTL.all = 0x0006;         // Master, CPHA = 1
    SpiaRegs.SPIBRR = 0x007F;             // SPI baud rate ~468.75kHz @ 60MHz
    SpiaRegs.SPICCR.bit.SPISWRESET = 1;   // Release SPI

    SpiaRegs.SPIPRI.bit.FREE = 1;         // Free run mode

    EDIS;
}

void spi_writeToDAC(Uint8 regAddr, Uint16 value)
{
    Uint8 cmdByte = 0;
    Uint16 word1 = 0;
    Uint16 word2 = 0;

    // Bit 23 = 0 (Write), Bits 22–20 = 000 (reserved), Bits 19–16 = register address
    cmdByte = (regAddr & 0x0F);

    // Build 24-bit frame as two 16-bit writes (MSB first)
    word1 = (cmdByte << 8) | ((value >> 8) & 0xFF);   // First 16 bits: [Command][Data[15:8]]
    word2 = (value & 0xFF) << 8;                      // Last 8 bits: [Data[7:0]] in upper byte

    GpioDataRegs.GPACLEAR.bit.GPIO19 = 1; // CS low

    // Send word1
    SpiaRegs.SPITXBUF = word1;
    while (SpiaRegs.SPISTS.bit.INT_FLAG == 0);
    SpiaRegs.SPISTS.all = 0x0000;

    // Send word2
    SpiaRegs.SPITXBUF = word2;
    while (SpiaRegs.SPISTS.bit.INT_FLAG == 0);
    SpiaRegs.SPISTS.all = 0x0000;

    GpioDataRegs.GPASET.bit.GPIO19 = 1; //CS high
}