USB hosts hubs transceivers Forum Discussions
I'm trying to create a iic with the following data
0xCO
0x7918
0x0110
0x0200
its a USB boot eprom with CO/VID/PID/DID.
Any idea how I do that? I try several ways with the hex2bix but couldn't get it to work.
Attach is the hex file.
Thanks
Show Lesshi all.
in the
CY7C65621 usb2 hub, the criteria for suitable crystal is unclear - page 22 12pf,500uW crystal. 24Mhz is o.k.understood,
but 12pF, and 500uW ??
is this are the maximum ratings or the exact required ratings of the crystsal ?, because 500uW is very rare power consumption to find available this days - 10-100uW (maybe 200uW) is o,k but 500uW also 12pF if i will find less 8-10pF?
please advise.
thx.
nitsan.
Show Less
We are using one new USB3.0 HUB CYUSB3302-68LTXI.
Do you have any idea for the MODE SEL ?
- What is the default setting?
- What would happen when I pull up SEL0&1 when power on.
- Do I need to pre-program the EEPROM before I use it?
‘Input leakage current’ is the current flowing to the chip I/O, when the corresponding I/O configured as input mode.
This current will draw from external supply; or from another chip’s output connected to it.
The leakage current will not flow through the pull-down resistor.
Pull-down resistor will not draw current, as the pin is in input mode. The IC pins shall drive in output mode only.
Since the pin in input mode, and not drawing current, this pin value to be read as near zero.
If you have a DVK, you can identify this resistor, and take measurement at pull-down resistor. I am sure it will be close to 0V.
Show Lesshi all.
does someone know what is the different between CY7C65631 AND CY7C65630. i dont see any differences between the data sheets ?
thx.
nitsan.
Show LessHi, the no-longer-supported HX3C reference design used PS8742b to add DisplayPort to the docking station. What's the current recommendation for adding DisplayPort alternate mode to a docking station based on HX3PD without interfering with what this controller offers? any new reference design or application notes available?
Thanks
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