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AN4308 Datasheet(PDF) 12 Page - STMicroelectronics

Part # AN4308
Description  The STCCxxxx devices also integrate the autodetect feature that supports both DCP
PDF  14 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN4308 Datasheet(HTML) 12 Page - STMicroelectronics

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STCC50x1 application example
AN4308
12/14
DocID024781 Rev 1
The ChargingPortEnable is the GPIO allowing the user to enable/disable the charging mode
support in the BIOS. For fully automatic operation without needing any GPIO, the CTL3 and
ATTACH_EN can be permanently connected to VDD.
The operating modes are following:
Note:
Important: The ChargingPortEnable GPIO must be latched in the S0 state when the
operating system is running. Toggling it under running operating system causes VBUS
discharge pulse and may lead to data transfer interruption!
Table 13. Operating modes
Power state
ChargingPortEnable = 0
ChargingPortEnable = 1
S0
SDP
CDP
S3
SDP with remote wakeup for all
devices
CDP with remote wakeup for
low-speed devices
DCP auto in other cases
S4/S5
OFF
OFF until attach detected
DCP auto after attach detected



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