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USB7006/KDX 数据表(PDF) 32 Page - Microchip Technology

部件名 USB7006/KDX
功能描述  6-Port USB 3.2 Gen 1 SmartHubTMController
PDF  56 Pages
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制造商  MICROCHIP [Microchip Technology]
网页  http://www.microchip.com
标志 MICROCHIP - Microchip Technology

USB7006/KDX 数据表(HTML) 32 Page - Microchip Technology

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USB7006
DS00003715B-page 32
 2022 Microchip Technology Inc. and its subsidiaries
8.0
FUNCTIONAL DESCRIPTIONS
This section details various USB7006 functions, including:
• Downstream Battery Charging
• Port Power Control
• PortSplit
• FlexConnect
• USB to GPIO Bridging
• USB to I2C Bridging
• USB to SPI Bridging
• Link Power Management (LPM)
• Resets
8.1
Downstream Battery Charging
The device can be configured by an OEM to have any of the downstream ports support battery charging. The hub’s role
in battery charging is to provide acknowledgment to a device’s query as to whether the hub system supports USB battery
charging. The hub silicon does not provide any current or power FETs or any additional circuitry to actually charge the
device. Those components must be provided externally by the OEM.
If the OEM provides an external supply capable of supplying current per the battery charging specification, the hub can
be configured to indicate the presence of such a supply from the device. This indication, via the PRT_CTLx pins, is on
a per port basis. For example, the OEM can configure two ports to support battery charging through high current power
FETs and leave the other two ports as standard USB ports.
The port control signals are assigned to programmable pins (PFx) and therefore the device must be programmed into
specific configurations to enable the signals. Refer to Section 3.3.4, PF[31:3] Configuration (CFG_STRAP[2:1]) for addi-
tional information.
For detailed information on utilizing the battery charging feature, refer to the application note “AN2810 Configuration of
USB7002/USB7006/USB7016/USB705x
”, which can be found on the Microchip USB7006 product page www.micro-
chip.com/USB7006.
FIGURE 8-1:
BATTERY CHARGING EXTERNAL POWER SUPPLY
SOC
VBUS[n]
PRT_CTLx
INT
SCL
SDA
Microchip
Hub
DC Power



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