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M451
May. 4, 2018
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Rev.2.08
M4
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Host Controller Root Hub Status Register (HcRhStatus)
Register
Offset
R/W
Description
Reset Value
HCRHSTATUS
0x050 R/W
Host Controller Root Hub Status Register
0x0000_0000
31
30
29
28
27
26
25
24
CRWE
Reserved
23
22
21
20
19
18
17
16
Reserved
OCIC
LPSC
15
14
13
12
11
10
9
8
DRWE
Reserved
7
6
5
4
3
2
1
0
Reserved
OCI
LPS
Bits
Description
[31]
CRWE
Clear Remote Wake-up Enable Bit
This bit is use to clear DRWE (HcRhStatus[15]).
This bit always read as zero.
Write Operation:
0 = No effect.
1 = Clear DRWE (HcRhStatus[15]).
[31:18]
Reserved
Reserved.
[17]
OCIC
over Current Indicator Change
This bit is set by hardware when a change has occurred in OCI (HcRhStatus[1]).
Write 1 to clear this bit to zero.
0 = OCI
(HcRhStatus[1]) didn’t change.
1 = OCI (HcRhStatus[1]) change.
[16]
LPSC
Set Global Power
In global power mode (PSM (HcRhDescriptorA[8]) = 0), this bit is written to one to enable
power to all ports.
This bit always read as zero.
Write Operation:
0 = No effect.
1 = Set global power.
[15]
DRWE
Device Remote Wakeup Enable Bit
This bit controls if port's Connect Status Change as a remote wake-up event.
Write Operation:
0 = No effect.
1 = Connect Status Change as a remote wake-up event Enabled.
Read Operation:
0 = Connect Status Change as a remote wake-up event Disabled.
1 = Connect Status Change as a remote wake-up event Enabled.
Содержание ARM Cortex NuMicro M451 Series
Страница 301: ...M451 May 4 2018 Page 301 of 1006 Rev 2 08 M451 SERIES TECHNICAL REFERENCE MANUAL...
Страница 324: ...M451 May 4 2018 Page 324 of 1006 Rev 2 08 M451 SERIES TECHNICAL REFERENCE MANUAL Figure 6 4 18 Checksum Calculation Flow...
Страница 355: ...M451 May 4 2018 Page 355 of 1006 Rev 2 08 M451 SERIES TECHNICAL REFERENCE MANUAL 2 0 Reserved Reserved...
Страница 625: ...M451 May 4 2018 Page 625 of 1006 Rev 2 08 M451 SERIES TECHNICAL REFERENCE MANUAL 00 5 bits 01 6 bits 10 7 bits 11 8 bits...
Страница 721: ...M451 May 4 2018 Page 721 of 1006 Rev 2 08 M451 SERIES TECHNICAL REFERENCE MANUAL the SCL line 1 0 Reserved Reserved...
Страница 1001: ...M451 May 4 2018 Page 1001 of 1006 Rev 2 08 M451 SERIES TECHNICAL REFERENCE MANUAL LQFP 64L 10x10x1 4 mm footprint 2 0 mm 9 2...
Страница 1002: ...M451 May 4 2018 Page 1002 of 1006 Rev 2 08 M451 SERIES TECHNICAL REFERENCE MANUAL LQFP 64L 7x7x1 4 mm footprint 2 0 mm 9 3...
Страница 1003: ...M451 May 4 2018 Page 1003 of 1006 Rev 2 08 M451 SERIES TECHNICAL REFERENCE MANUAL LQFP 48L 7x7x1 4mm footprint 2 0mm 9 4...