Texas Instruments TPS65982 User Manual

Enter DP
Alternate
Mode
S0: HPD Low
Wait State
Firmware enables
HPD RX
Start HPD Timer
HPD GPIO
is High
S1: HPD High
Debounce State
HPD GPIO
is low
HPD GPIO goes
low before Timer
reaches High_Debounce
Generate
HPD_High
interrupt,
Stop HPD Timer
Timer passes
High_Debounce
S2: HPD High
Wait State
HPD GPIO
is high
Start HPD Timer
HPD GPIO
is low
S3: HPD Low
Debounce State
HPD GPIO goes
high before Timer
reaches Low_Debounce
S4: HPD IRQ
Detect State
Timer passes
Low_Debounce
Generate
HPD_IRQ
Interrupt
HPD GPIO goes
high before Timer
reaches IRQ_Limit
Generate
HPD_LOW
Interrupt,
Stop HPD Timer
Timer Passes
IRQ_Limit
Figure 9-43. HPD TX Flow Diagram
9.3.17 ADC
The TPS65982 ADC is shown in Figure 9-44. The ADC is a 10-bit successive approximation ADC. The input
to the ADC is an analog input multiplexer that supports multiple inputs from various voltages and currents in
the device. The output from the ADC is available to be read and used by application firmware. Each supply
voltage into the TPS65982 is available to be converted including the port power path inputs and outputs. All
GPIO, the C_CCn pins, the charger detection voltages are also available for conversion. To read the port power
path current sourced to VBUS, the high-voltage and low-voltage power paths are sensed and converted to
voltages to be read by the ADC. For the external FET path, the difference in the SENSEP and SENSEN voltages
www.ti.com
TPS65982
SLVSD02E – MARCH 2015 – REVISED AUGUST 2021
Copyright © 2021 Texas Instruments Incorporated
Submit Document Feedback
63
Product Folder Links: TPS65982

Texas Instruments TPS65982 Specifications

General

Brand	Texas Instruments
Model	TPS65982
Category	Motherboard
Language	English