Rev. 3.0, 03/01, page 322 of 390
HcInteruptDisable
Writing a ‘1’ to a bit in this register clears the corresponding bit, while writing a ‘0’ to a bit leaves
the bit unchanged.
Table 18.28 HcInterruptDisable Register
Register: HcInterruptDisable
Offset: 14-17
Bits
Reset
R/W
Description
31
0b
R/W
MasterInterruptEnable
This bit is a global interrupt disable. A write of ‘1’ disables all
interrupts.
30
0b
R/W
OwnershipChangeEnable
0: Ignore
1: Disable interrupt generation due to Ownership Change.
29 - 7
0h
-
Reserved. Read/Write 0's
6
0b
R/W
RootHubStatusChangeEnable
0: Ignore
1: Disable interrupt generation due to Root Hub Status Change.
5
0b
R/W
FrameNumberOverflowEnable
0: Ignore
1: Disable interrupt generation due to Frame Number Overflow.
4
0b
R/W
UnrecoverableErrorEnable
This event is not implemented. All writes to this bit will be
ignored.
3
0b
R/W
ResumeDetectedEnable
0: Ignore
1: Disable interrupt generation due to Resume Detected.
2
0b
R/W
StartOfFrameEnable
0: Ignore
1: Disable interrupt generation due to Start of Frame.
1
0b
R/W
WritebackDoneHeadEnable
0: Ignore
1: Disable interrupt generation due to Writeback Done Head.
0
0b
R/W
SchedulingOverrunEnable
0: Ignore
1: Disable interrupt generation due to Scheduling Overrun.
Содержание HD64465
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