Stand-Alone Switches; Control Port Connectors; Usb Connector; Rs-232 Connector - Cirrus Logic CDB43L21 Manual

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
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.
"Software Mode Control" on page 7

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.
6
provides a description of each topology.
provides a description of the GUI.
CDB43L21
Section 2.
DS723DB1