User's Manual

COMPANY CONFIDENTIAL
35
Table 6-1. Visible Device States
Attached Powered Default Address Configured Suspended State
No -- -- -- -- -- Device is not
attached to the
USB. Other
attributes are not
significant.
Yes No -- -- -- -- Device is attached
to the USB, but is
not powered. Other
attributes are not
significant.
Yes Yes No -- -- -- Device is attached
to the USB and
powered, but has
not been reset.
Yes Yes Yes No -- -- Device is attached
to the USB and
powered and has
been reset, but has
not been assigned
a unique address.
Device responds at
the default address.
Yes Yes Yes Yes No -- Device is attached
to the USB,
powered, has been
reset, and a unique
device address has
been assigned.
Device is not
configured.
Yes Yes Yes Yes Yes No Device is attached
to the USB,
powered, has been
reset, has a unique
address, is
configured, and is
not suspended. The
host may now use
the function
provided by the
device.
Yes Yes -- -- -- Yes Device is, at
minimum, attached
to the USB and is
powered and has
not seen bus