參數(shù)資料
型號: USB3450
廠商: SMSC Corporation
英文描述: HI-SPEED USB HOST OR DEVICE PHY WITH UTMI+INTERFACE
中文描述: 高速USB主機(jī)或設(shè)備與UTMI接口物理層
文件頁數(shù): 30/40頁
文件大小: 1086K
代理商: USB3450
Hi-Speed USB Host or Device PHY With UTMI+ Interface
Datasheet
Revision 0.1 (05-11-05)
30
SMSC USB3450
DATASHEET
Figure 7.2 Suspend Timing Behavior (HS Mode)
Table 7.5 Suspend Timing Values (HS Mode)
TIMING
PARAMETER
DESCRIPTION
VALUE
HS Reset T0
End of last bus activity, signaling either a reset
or a SUSPEND.
0 (reference)
T1
The time at which the device must place itself
in FS mode after bus activity stops.
HS Reset T0 + 3. 0ms < T1 < HS Reset T0
+ 3.125ms
T2
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.
T1 + 100 μs < T2 <
T1 + 875μs
T3
The earliest time where a device can issue
Resume signaling.
HS Reset T0 + 5ms
T4
The latest time that a device must actually be
suspended, drawing no more than the
suspend current from the bus.
HS Reset T0 + 10ms
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