Patent ID: 11936229
Assignee: TEXAS INSTRUMENTS INCORPORATED
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 0:
1. A method, comprising:
determining a charging port mode by:
receiving a data contact detect (DCD) Complete signal;
reducing a voltage on a first data pin of a Universal Serial Bus (USB) connector of a portable device (PD) from a first voltage to a second voltage, wherein the second voltage is lower than the first voltage, responsive to receiving the DCD Complete signal;
determining that a condition is true responsive to a third voltage on a second data pin of the USB connector being equal to or greater than 0.8 to 2.0 Volts (V), and is false otherwise;
sending, in response to determining that the condition is true, a first signal on a control circuit output of a control circuit of the PD, wherein the first signal is configured to indicate that the PD is connected to a dedicated charging port (DCP) of Divider 0 mode; and
sending, in response to determining that the condition is false, a second signal on the control circuit output, wherein the second signal is configured to indicate that the PD is connected to a DCP of 1.2V short mode.