參數(shù)資料
型號(hào): 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(yè)數(shù): 6/112頁(yè)
文件大小: 1451K
代理商: M37753S4CHP
6. Functional Description
S1R72V17*** Technical Manual (Rev.1.6)
EPSON
85
6.3.9.1.5
OPERATIONAL
This is the state where a USB transaction is executed.
The LSI shifts to this state after completion of RESET or RESUME and then executes a
transaction.
The LSI shifts to this state when the host state transition execution
(H_NegoControl_0.AutoMode) is set to GoOPERATIONAL.
In this state, the following settings are automatically executed:
Port set to NormalOperation
Transaction execution function of the USB host enabled
Disconnection detection function turned on
6.3.9.1.6
SUSPEND
This is the state where USB is suspended.
The LSI shifts to this state from OPERATIONAL when it is necessary to stop the use of the
USB bus.
The LSI shifts to this state when the host state transition execution
(H_NegoControl_0.AutoMode) is set to GoSUSPEND.
In this state, the following initial settings are automatically executed:
Disconnection detection and remote wakeup detection functions turned off
Transaction execution function of the USB host disabled after waiting for completion of
the current transaction
Port set to FS mode (in HS mode), or retain current mode (in FS or LS mode)
Port set to PowerDown.
Next, the following processes are automatically executed after the disconnection and remote
wakeup detection disable period has expired.
Disconnection detection function turned on.
Remote wakeup detection turned on if remote wakeup acceptance enable
(H_NegoControl_1.RmtWkupDetEnb) is enabled.
Suspend transition complete status (H_SIE_IntStat_1.SuspendCmp) issued
In addition, if while the remote wakeup acceptance enable
(H_NegoControl_1.RmtWkupDetEnb) is enabled, a remote wakeup signal (consecutive “K”
for 2.5 s or more) is detected, a remote wakeup detected status
(H_SIE_IntStat_0.DetectRmtWkup) is issued to the firmware.
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