Cirrus Logic CDB5480U - Manual (Page 19)

CDB5480U
DS893DB5 19
To select SPI communications, position jumper J16 to the SSEL to SPI position and select SPI in the
Serial Port Selection window. See Figure 16.
Figure 16. SPI Serial Port Selection Window, SPI Selected
After the serial port has been selected, press the OK button. The MCU will try to read the chip ID from the
CS5480. The chip revision number will be displayed in "Device:" in the Start-up window. If the red
"Unknown CHIP ID" is shown, check the power supply and clock to the CS5480, MODE jumper J15, SSEL
jumper J16, and the isolation jumpers J18, J51, and J20, click the RESET button, and go back to the USB
connection process.
Figure 17. Unknown Chip ID Error Message