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參數(shù)資料
| 型號： | 82C862 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | FireLink USB Dual Controller Quad Port USB |
| 中文描述： | FireLink雙控制器的USB四口USB |
| 文件頁數(shù)： | 41/51頁 |
| 文件大?。?/td> | 321K |
| 代理商： | 82C862 |
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FireLink USB
82C862
912-2000-030
Revision 1.0
Page 37
7
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2
1
0
MEMOFST 58h
HcRhPort2Status Register - Byte 0
Default = 00h
Reserved
Read: Port
Reset Status
0 = Port reset
status
signal not
active
1 = Port reset
signal
active
Write: Set Port
Reset
0 = No effect
1 = Sets Port
Reset
Status
Read: Port
Over-current
Indicator(1)
0 = No over-
current
condition
1 = Over-
current
condition
Write: Clear
Port Suspend
0 = No effect
1 = Initiates
selective
resume
sequence
for the port
Read: Port
Suspend Status
0 = Port is not
suspended
1 = Port is
selectively
suspended
Write: Set Port
Suspend
0 = No effect
1 = Sets Port
Suspend
Status
Read: Port
Enable Status
0 = Port
disabled
1 = Port
enabled
Write: Set Port
Enable
0 = No effect
1 = Sets Port
Enable
Status
Read: Current
Connect Status
0 = No device
connected
1 = Device
connected.(
2)
Write: Clear
Port Enable
0 = No effect
1 = Clears Port
Enable
Status bit
(bit 1)
(1) The USB core supports global over-current reporting. This bit reflects the state of the OVRCUR pin dedicated to this port. This bit is only
valid if the No Over-current Protection (MEMOFST 49h[4]) bit is cleared and Over-current Protection Mode (MEMOFST 49h[3]) bit is set.
(2) If the Device Removable bits (MEMOFST 4Ch[15:0]) are set (not removable), bit 0 is always 1.
MEMOFST 59h
HcRhPort2Status Register - Byte 1
Default = 00h
Reserved
Read: Low
Speed Device
Attached(1)
0 = Full speed
device
1 = Low speed
device
Write: Clear
Port Power
0 = No effect
1 = Clears Port
Power
Status (bit
0)
Read: Port
Power Status(2)
0 = Port power
is off
1 = Port power
is on
Write: Set Port
Power
0 = No effect
1 = Sets Port
Power
Status
(1) Bit 1 defines the speed (and bus idle) of the attached device. It is only valid when Current Connect Status (MEMOFST 54h[0]) bit is set.
(2) Bit 0 reflects the power state of the port regardless of the power switching mode. If the No Power Switching (MEMOFST 49h[1]) bit is set,
bit 0 is always read as 1.
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