參數資料
型號: μPD9210FGC-7EA
廠商: NEC Corp.
英文描述: USB Host Controller(USB主控制器)
中文描述: USB主機控制器(的USB主控制器)
文件頁數: 73/95頁
文件大?。?/td> 423K
代理商: ΜPD9210FGC-7EA
CHAPTER 5 REGISTER INFORMATION
73
Read/Write
Field
Bit
HCD
HD
Value
(Default)
Comment
PortEnableStatusChange
(PESC)
Note
17
R/W
R/W
0b
This bit is set by the following conditions.
When an overcurrent occurs
When a device is disconnected
When a port’s power is off
When an operational error, such as bubble detection,
occurs
It is cleared when “1” is written by the HCD.
PortSuspendStatusChange
(PSSC)
Note
18
R/W
R/W
0b
This bit is set by completion of a RESUME signal.
It is cleared when “1” is written by the HCD or when PRSC
is set.
PortOverCurrentIndicator
Change (OCIC)
Note
19
R/W
R/W
0b
This bit is set when POCI changes.
It is cleared when “1” is written by the HCD.
PortResetStatusChange
(PRSC)
Note
20
R/W
R/W
0b
This bit is set by completion of a RESET signal.
It is cleared when “1” is written by the HCD.
Note
This field can only be used for hardware resets.
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