Kit Operation
CY4541 EZ-
PD™ CCG4 Evaluation Kit Guide, Doc. No. 002-10353 Rev. *E
42
drive is connected to Type-C port 2
.
LED1 (Green) on the CY4541 CCG4 daughter card and both the CCG EVK base
boards glow to indicate that the kit is powered. The LED2 (Orange) on CCG EVK base board 1 blinks continuously to
indicate that CCG4 is powered and active
.
When the CCG4 on the EVK is powered, it establishes a power contract with
the USB Type-C power adapter and starts consuming power. This can be verified by connecting a multimeter to the power
output header (J7) of the CCG EVK base board (where the USB Type-C power adapter is connected) to measure the output
voltage in the dead battery charging scenario. The output voltage at the power provider header (J7) is based on the power
negotiation between the CCG4 device and the USB Type-C power adapter. Thus, it will vary with respect to the attached
USB Type-C power adapter. This demonstrates that a CCG4-enabled dual Type-C notebook can be charged from the dead
battery condition.
3. The CCG4 is now active and provides power to the UFP device (USB pen drive) connected to Type-C port 2. Observe the
enumeration of the SuperSpeed USB pen drive on the PC. In this scenario, Type-C port 1 acts as a power consumer and
Type-C port 2 acts as a power provider.
4. Interchange the connection of the USB Type-C to Type-A adapter and the USB Type-C power adapter between Type-C
port 1 and Type-C port 2, as shown in
. Note that the connection of wires between the power input header (J12)
of CCG EVK base board 1 and the power output header (J7) of CCG EVK base board 2 is mandatory as current flows from
CCG EVK base board 2 to CCG EVK base board 1 when a USB Type-C power adapter is connected to Type-C port 2.
Also, the connection of USB 3.0 Type-A to Type-B Cable to SuperSpeed USB Type-B connector (J2) of CCG EVK base
board 1 is mandatory when the USB pen drive is connected to Type-C port 1.
