USB hosts hubs transceivers Forum Discussions
Hello
Q1)
If they only set the MODE_SEL pin to "1.1" (without external EEPROM), will it be possible to use "internal ROM configuration" and use it according to the specifications described in "Datasheet- Table 2. 68-Pin QFN, 100-Ball BGA Pinout for CYUSB3302 and CYUSB3304"?
Q2)
Also, in the above case(MODE_SEL=1,1), is it ok to think that the internal ROM configuration settings are the same as the "default " values listed in "Datasheet Table 8. EEPROM Map"?
Best Regards
Show LessI currently have 2 DELL model computers that are same Latitude 5430 systems with Windows 10 Enterprise. I've been successful installing driver package on one machine, but on the other, the driver will not correctly install the COM port and the device I'm trying to use will not function. I've verified that both systems have Identical build level of Windows software. Any suggestions?
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HX3 has pins to connect to power switch enable pin and over-curret flag pin.
We have a question about polarity of those enabled pins and over-current.
what is polarity of enabling pin and over-current if " Pin-strap is flaoting " and mode is " Internal ROM "
smartconx_target@Q!w2e3r4t5y6u7i8o9p0||/t5/USB%E4%B8%BB%E6%A9%9F%E9%9B%86%E7%B7%9A%E5%99%A8%E6%94%B6%E7%99%BC%E5%99%A8/HX3-polarity/td-p/681163
Show LessHello Support,
The following Microchip USB hubs have a host switching function called FlexConnect.
https://ww1.microchip.com/downloads/en/Appnotes/AN1700-FlexConnect-Applications-00001700D.pdf
This allows you to configure your system to switch between two USB hosts.
Are there any products with similar functionality to Infineon's USB hub?
Best regards,
Koki
Do these voltage thresholds apply to the SELFPWR and RESET# pins?
Asked differently, is a pull-up voltage of 3.3V sufficient? In our application, the hub is always connected to a SOM running on the same 3.3V supply voltage as the hub. The evaluation kit uses pull-ups towards VBUS for these pins.
What is the input leakage current of these pins? In the datasheet input leakage currents are reported for low and high speed mode but I don't see why the speed of the chip can affect them so I doubt if they apply.
Does the mentioned input pin capacitance also apply to XIN and XOUT? If not what capacitance do these pins have?
Thanks for your Help
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Hello Suopport,
Regarding the GPIO AC specifications, it seems that the maximum and minimum values of rise/fall time are the same in Fast mode and Slow mode, as shown in the figure below. Is this an error in the datasheet?
Could you please check the value?
Best regards,
Koki
Show LessIf the SUSPEND pin is not used, can this pin be left unconnected? I would like to remove the LED because I don't need notifications using the LED.
Thanks,
Tetsuo
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