Cirrus Logic CDB43L21 - Manual (Page 6)

6 DS723DB1
CDB43L21
1.9 Stand-Alone Switches
The “FPGA H/W Control” and “CS43L21 H/W Control” switches control all Hardware Mode options.
Section 3. “Hardware Mode Control” on page 11 provides a description of each topology.
1.10 Control Port Connectors
A graphical user interface is available for the CDB43L21, allowing easy manipulation of each register. This
GUI interfaces with the CDB via the RS-232 connector and controls all Software Mode options.
Section 2.
“Software Mode Control” on page 7 provides a description of the GUI.
1.10.1 USB Connector
Connecting a USB port cable from a PC to the USB connector and launching the Cirrus FlexGUI software
enables one to use the CDB43L21.
1.10.2 RS-232 Connector
Connecting a cable to the RS-232 connector and launching the Cirrus FlexGUI software enables the
CDB43L21 in Software Mode.