Re: [usb] Clarification on USB

["Vikas T Rao " <vikasraot@myw.ltindia.com>]

FS device should take only 6 bit times to reply but not 16 bit times.
host will wait 16 bit times and retries.

>>> ravikumar_vlsi@yahoo.co.in 03/05/03 12:11PM >>>
Hi Folks

I have  a Query on Usb.
suppose host puts IN token and send it  to device .
2.Device takes more than the Bus turn around Time ( or
more than the bit times required to respond )
3.Host wil assume itz the Bus time out and intimate to
software.
4.Assuming this the host wil retry to the same Device
.
5.By that time whn Device responds for the previous IN
token it wil lead to Contention



How the above said Contention is avoided or
controlled.

Regards
Ravikumar
Mob:+91-9840286587
Fone:+91-44-31007603

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