CS5535 datasheet(294/555 Pages) NSC

294 / 555 page

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294

Revision 0.8

USB Register Descriptions (Continued)

Dual Function

R/W

Read: Port Power Status. This bit reflects the power state of the

port regardless of the power switching mode.

0: Port power is off.

1: Port power is on.

Note:

If NoPowerSwitching is set, this bit is always read as 1.

Write: Set Port Power. Writing a 1 sets PortPowerStatus. Writing

a 0 has no effect.

7:5

RSVD

R/W

Reserved. Read/write 0s.

Dual Function

R/W

Read: Port Reset Status.

0: Port reset signal is not active.

1: Port reset signal is active.

Write: Set Port Reset. Writing a 1 sets PortResetStatus. Writing

a 0 has no effect.

Dual Function

R/W

Read: Port Over Current Indicator. This bit reflects the state of

the OVRCUR pin dedicated to this port. This field is only valid if

NoOverCurrentProtection is cleared and OverCurrentProtection-

Mode is set.

0: No over-current condition.

1: Over-current condition.

Write: Clear Port Suspend. Writing a 1 initiates the selective

resume sequence for the port. Writing a 0 has no effect.

Dual Function

R/W

Read: Port Suspend Status.

0: Port is not suspended.

1: Port is selectively suspended.

Write: Set Port Suspend. Writing a 1 sets PortSuspendStatus.

Writing a 0 has no effect.

Dual Function

R/W

Read: Port Enable Status.

0: Port disabled.

1: Port enabled.

Write: Set Port Enable. Writing a 1 sets PortEnableStatus. Writ-

ing a 0 has no effect.

Dual Function

R/W

Read: Current Connect Status.

0: No device connected.

1: Device connected.

If DeviceRemoveable is set (not removable) this bit is always 1.

Write: Clear Port Enable. Writing 1 a clears PortEnableStatus.

Writing a 0 has no effect.

USBC_HcRhPortStatus[2] Bit Descriptions (Continued)

Bit

Name

HCD

Description

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