IWR1443: CSI Configuration

Hello,

I would like to understand how the datarate of the CSI interface is configured. I am using the SDK 1.0 capture demo as a reference, specifically lines 863-887 of main.c.

memset ((void*)&hsiClkgs, 0, sizeof(rlDevHsiClk_t));
if (gCaptureMCB.hsi == Capture_HSI_CSI)
{
    /* Populate the HSI Clock argument: */
    switch (gCaptureMCB.cfg.highSpeedDataRate)
    {
        case CSI_DataRate_900Mhz:
        {
            /* Setup the HSI Clock as per the mmWave link documentation */
            hsiClkgs.hsiClk = 0x5;
            break;
        }
        case CSI_DataRate_450Mhz:
        {
            /* Setup the HSI Clock as per the mmWave link documentation */
            hsiClkgs.hsiClk = 0x6;
            break;
        }
        default:
        {
            System_printf ("Error: High speed Interface Data Rate %d is NOT supported\n", gCaptureMCB.cfg.highSpeedDataRate);
            return;
        }
    }
}

When I configure for CSI_DataRate_450Mhz, I observe a 111 MHz clock on the oscilloscope. When I configure for CSI_DataRate_900MHz, I do not get any clock signal. Can you please explain how to interpret these datarate settings, and how to configure the CSI datapath for

Thank you,

Antonio