STM32F4-DISCOVERY

I have a demo board STM32F429I-DISC1.

There is a SPI configuration in LCD configuration function

LCD_SPIConfig();

And then

void LCD_WriteData(uint8_t value)
{
    /* Set WRX to send data */
  LCD_CtrlLinesWrite(LCD_WRX_GPIO_PORT, LCD_WRX_PIN, Bit_SET);
  
  /* Reset LCD control line(/CS) and Send data */  
  LCD_ChipSelect(DISABLE);
  SPI_I2S_SendData(LCD_SPI, value);
  
  /* Wait until a data is sent(not busy), before config /CS HIGH */
  
  while(SPI_I2S_GetFlagStatus(LCD_SPI, SPI_I2S_FLAG_TXE) == RESET) ;
  
  while(SPI_I2S_GetFlagStatus(LCD_SPI, SPI_I2S_FLAG_BSY) != RESET);
  
  LCD_ChipSelect(ENABLE);
}

But the LCD on the demo board doesn't have any SPI interface.

Do I miss something?

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