STUSB4700

Block descriptions

DocID030193 Rev 2

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

If an overtempe

rature is detected, the “THERMAL_FAULT”flag is asserted.



If an internal pull-

up voltage on CC pins is below UVLO threshold, the “VPU_VALID”

flag is asserted.



If an overvoltage is detected on the CC pins, the “VPU_OVP_FAULT” flag is asserted.



“VBUS_VALID” flag is asserted.



is enabled, the “VDD_UVLO_DISABLE” flag is asserted.



is enabled, the “VDD_OVLO_DISABLE” flag is asserted.

when it occurs or the setting condition to detect the hardware fault.

3.9

Accessory mode detection

The STUSB4700 supports the detection of audio accessory mode and debug accessory

mode as defined in the USB Type-C standard specification source power role with

accessory support.

3.9.1

Audio accessory mode detection

The STUSB4700 detects an audio accessory device when both the CC1 and CC2 pins are

pulled down to ground by a Ra resistor from the connected device. The audio accessory

CC_CONNECTION_STATUS.

3.9.2

Debug accessory mode detection

The STUSB4700 detects a connection to a debug and test system (DTS) when it operates

either in sink power role or source power role. The debug accessory detection is advertised

by the DEBUG1 and DEBUG2 pins as well as through the CC_ATTACHED_MODE bits of

In source power role, a debug accessory device is detected when both the CC1 and CC2

pins are pulled down to ground by a Rd resistor from the connected device. The orientation

detection is performed in two steps as described in the table below. The DEBUG2 pin is

asserted to advertise the DTS detection and the A_B_SIDE pin indicates the orientation of

the connection. The orientation detection is advertised through the TYPEC_FSM_STATE