USB3450 Standard Microsystems Corporation, USB3450 Datasheet - Page 30
USB3450
Manufacturer Part Number
USB3450
Description
Hi-speed USB HOST OR Device PHY WITH Utmi+interface
Manufacturer
Standard Microsystems Corporation
Datasheet
1.USB3450.pdf
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Revision 0.1 (05-11-05)
PARAMETER
HS Reset T0
TIMING
T1
T2
T3
T4
End of last bus activity, signaling either a reset
or a SUSPEND.
The time at which the device must place itself
in FS mode after bus activity stops.
Link samples LINESTATE. If LINESTATE = 'J',
then the initial SE0 on the bus (T0 - T1) had
been due to a Suspend state and the Link
remains in HS mode.
The earliest time where a device can issue
Resume signaling.
The latest time that a device must actually be
suspended, drawing no more than the
suspend current from the bus.
Figure 7.2 Suspend Timing Behavior (HS Mode)
Table 7.5 Suspend Timing Values (HS Mode)
DESCRIPTION
DATASHEET
30
Hi-Speed USB Host or Device PHY With UTMI+ Interface
0 (reference)
HS Reset T0 + 3. 0ms < T1 < HS Reset T0
+ 3.125ms
T1 + 100 µs < T2 <
T1 + 875µs
HS Reset T0 + 5ms
HS Reset T0 + 10ms
VALUE
SMSC USB3450
Datasheet
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