>This function writes and reads data from a serial FLASH.</p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">IntcInstancePtr</td><td>is a pointer to the instance of the INTC component. </td></tr>
    <tr><td class="paramname">QspiInstancePtr</td><td>is a pointer to the QSPIPS driver to use. . </td></tr>
    <tr><td class="paramname">QspiDeviceId</td><td>is the XPAR_&lt;QSPIPS_instance&gt;_DEVICE_ID value from xparameters.h. </td></tr>
    <tr><td class="par