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USB4624 Datasheet(PDF) 28 Page - SMSC Corporation

Part # USB4624
Description  USB 2.0 HSIC Hi-Speed 4-Port Hub Controller
PDF  68 Pages
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Manufacturer  SMSC [SMSC Corporation]
Direct Link  http://www.smsc.com
Logo SMSC - SMSC Corporation

USB4624 Datasheet(HTML) 28 Page - SMSC Corporation

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USB 2.0 HSIC Hi-Speed 4-Port Hub Controller
Datasheet
Revision 1.0 (06-17-13)
28
SMSC USB4624
DATASHEET
6.2.1.2
SPI Access over USB
Access to an attached SPI device is performed as a pass-through operation from the USB Host. The
device firmware has no knowledge of the operation of the attached SPI device. The supported
commands are:
Enable SPI pass through mode
Disable SPI pass through mode
SPI write
SPI read
Note: Refer to Section 7.1, "SPI Interface," on page 31 for additional information on the SPI interface.
6.2.1.3
OTP Access over USB
The OTP ROM in the device is accessible via the USB bus. All OTP parameters can modified via the
USB Host. The OTP operates in Single Ended mode. The supported commands are:
Enable OTP reset
Set OTP operating mode
Set OTP read mode
Program OTP
Get OTP status
Program OTP control parameters
6.2.1.4
Battery Charging Access over USB
The Battery charging behavior of the device can be dynamically changed by the USB Host when
something other than the preprogrammed or OTP programmed behavior is desired. The supported
commands are:
Enable/Disable battery charging
Upstream battery charging mode control
Downstream battery charging mode control
Battery charging timing parameters
Download custom battery charging algorithm
6.2.1.5
Other Embedded Controller functions over USB
The following miscellaneous functions may be configured via USB:
Enable/Disable Embedded controller enumeration
Program Configuration parameters.
Program descriptor fields:
—Language ID
—Manufacturer string
—Product string
—idVendor
—idProduct
—bcdDevice



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