參數(shù)資料
型號: M37753S4CHP
元件分類: 微控制器/微處理器
英文描述: 16-BIT, 40 MHz, MICROCONTROLLER, PQFP80
封裝: PLASTIC, QFP-80
文件頁數(shù): 10/112頁
文件大?。?/td> 1451K
代理商: M37753S4CHP
6. Functional Description
S1R72V17*** Technical Manual (Rev.1.6)
EPSON
89
6.3.9.2.2.2
When FS or LS Device is Disconnected
Disconnection of an FS or LS device is detected in the states DISABLED,
OPERATIONAL, and SUSPEND.
The procedure that is executed when an FS or LS device is disconnected is described
below. Procedures (2) to (3) are automatically executed by the LSI’s hardware.
(1) A device is disconnected (T0).
(2) A disconnection is detected from the signal line state.
(3) A disconnection detected status (H_SIE_IntStat_0.DetectDiscon) is issued to the
firmware (T1).
WAIT_CONNECT / IDLE
OpMode[1:0]
XcvrSelect[1:0]
time
TermSelect
DP / DM
Normal Operation
SE0
Disconnected
Connected
PortSpeed
LineState[1:0]
SE0
T0
T2
FS
FS/LS
T1
Don't care
'J' / 'K' State
HostState[2:0]
DISABLED / OPERATIONAL /
SUSPEND
DetectDiscon
FS
FS/LS
Fig. 6.37 Disconnection detection timing (FS or LS mode)
Table 6.32 Disconnection Detection Timing Values (FS or LS Mode)
Timing
Parameter
Description
Value
T0
A device is disconnected.
0 (reference)
T1
A disconnection detected status
(H_SIE_IntStat_0.DetectDiscon) is issued (by hardware).
T0 + 2.5us< T1 {TDDIS}
T2
(reference)
Host state transition execution (H_NegoControl_0.AutoMode) is
set to GoWAIT_CONNECT (by firmware).
Not stipulated
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