cs5535 National Semiconductor Corporation, cs5535 Datasheet - Page 291

• Manufacturer Part Number: cs5535
• Description: Geode Cs5535 Companion Multi-function South Bridge
• Manufacturer: National Semiconductor Corporation

Revision 0.8
USB Register Descriptions
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
31:21
15:10
Bit
20
19
18
17
16
9
Name
RSVD
PortReset
StatusChange
PortOverCurrent
IndicatorChange
PortSuspend
StatusChange
PortEnable
StatusChange
ConnectStatus
Change
RSVD
Dual Function
RSVD
HCD
USBC_HcRhPortStatus[1] Bit Descriptions
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
USBC_HcRhPortStatus[1] Register Map
(Continued)
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
HC
Description
Reserved. Read/write 0s.
Port Reset Status Change. This bit indicates that the port reset
signal has completed.
0: Port reset is not complete.
1: Port reset is complete.
Port Over Current Indicator Change. This bit is set when Over-
CurrentIndicator changes. Writing a 1 clears this bit. Writing a 0
has no effect.
Port Suspend Status Change. This bit indicates the completion
of the selective resume sequence for the port.
0: Port is not resumed.
1: Port resume is complete.
Port Enable Status Change. This bit indicates that the port has
been disabled due to a hardware event (cleared PortEnableSta-
tus).
0: Port has not been disabled.
1: PortEnableStatus has been cleared.
Connect Status Change. This bit indicates a connect or discon-
nect event has been detected. Writing a 1 clears this bit. Writing
a 0 has no effect.
0: No connect/disconnect event.
1: Hardware detection of connect/disconnect event.
If DeviceRemoveable is set, this bit resets to 1.
Reserved. Read/write 0s.
Read: Low Speed Device Attached. This bit defines the speed
of the attached device. It is only valid when CurrentConnectSta-
tus is set.
0: Full Speed device.
1: Low Speed device.
Write: Clear Port Power. Writing a 1 clears PortPowerStatus.
Writing a 0 has no effect.
291
RSVD
9
8
7
RSVD
6
5
4
3
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2
1
0