CS5535 datasheet(290/555 Pages) NSC

290 / 555 page

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290

Revision 0.8

USB Register Descriptions (Continued)

5.5.4.22

Host Controller Root Hub Port Status 1 (USBC_HcRhPortStatus[1])

This register is reset by the UsbReset state.

Note: There must be a Device Connect detected by the host to be able to set other bits.

USBC_HcRhStatus Register Map

31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10

7654321

RSVD

USBC_HcRhStatus Bit Descriptions

Bit

Name

HCD

Description

ClearRemote

WakeupEnable

Clear Remote Wakeup Enable. Writing a 1 to this bit clears

DeviceRemoteWakeupEnable. Writing a 0 has no effect.

30:18

RSVD

R/W

Reserved. Read/write 0s.

OverCurrent

IndicatorChange

R/W

Over Current Indicator Change. This bit is set when OverCur-

rentIndicator changes. Writing a 1 clears this bit. Writing a 0 has

no effect.

Dual Function

R/W

Read: Local Power Status Change. Not supported. Always

Write: Set Global Power. Write a 1 issues a SetGlobalPower

command to the ports. Writing a 0 has no effect.

Dual Function

R/W

Read: Device Remote Wakeup Enable. This bit enables ports'

ConnectStatusChange as a remote wakeup event.

0: Disabled.

1: Enabled.

Write: Set Remote Wakeup Enable. Writing a 1 sets DeviceRe-

moteWakeupEnable. Writing a 0 has no effect.

14:2

RSVD

R/W

Reserved. Read/write 0s.

OverCurrent

Indicator

RR/W

Over Current Indicator. This bit reflects the state of the OVR-

CUR pin. This field is only valid if NoOverCurrentProtection and

OverCurrentProtectionMode are cleared.

0: No over-current condition.

1: Over-current condition.

Dual Function

R/W

Read: Local Power Status. Not Supported. Always read 0.

Write: Clear Global Power. Writing a 1 issues a ClearGlo-

balPower command to the ports. Writing a 0 has no effect.

USB Memory Offset

54h

Type

HCD:

HC:

R/W

Reset Value

00000000h

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