[SI-LIST] usb2.0 eye template
- From: <santhosh.etavalath@xxxxxxxxx>
- To: <si-list@xxxxxxxxxxxxx>
- Date: Sat, 21 Apr 2007 07:11:42 +0530
Hi,
I have a doubt regarding the templates given for the eye masks at differents
locations of USB high speed signalling.
In the USB2.0 spec they mainly mentioned about 4 templates to be used while
checking the signals.
If I have a USB interface between the host and connector on the board (a USB
device like mem stick or floppy drive will be connected to it) which template I
should be looking at for receiver side and transmitter side waveforms?
Should I consider the captive cable templates?
Same thing with a USB interface between host and device where both are separate
chips on the board, which templates to be looked at for tx and rx side
waveforms?
Is there any specific eye mask fand UI limit for the USB1.1 signals at both
reciever and transmitter side waveforms, if then what is the values.
Regards
Santhosh
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