SC1200UFH-266 AMD (ADVANCED MICRO DEVICES), SC1200UFH-266 Datasheet - Page 290

• Manufacturer Part Number: SC1200UFH-266
• Manufacturer: AMD (ADVANCED MICRO DEVICES)

Specifications of SC1200UFH-266

• Operating Temperature (min): 0C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Lead Free Status / Rohs Status: Not Compliant

290
Offset 4Ch-4Fh
Note:
Offset 50h-53h
Note:
31:16
30:18
15:0
14:2
Bit
31
17
16
15
1
0
This register is only reset by a power-on reset (PCIRST#). It is written during system initialization to configure the Root Hub.
These bit should not be written during normal operation.
This register is reset by the UsbReset state.
Description
PortPowerControlMask. Global-power switching. This field is only valid if NoPowerSwitching is cleared and PowerSwitch-
ingMode is set (individual port switching). When set, the port only responds to individual port power switching commands
(Set/ClearPortPower). When cleared, the port only responds to global power switching commands (Set/ClearGlo-
balPower).
0: Device not removable.
1: Global-power mask.
Port Bit relationship - Unimplemented ports are reserved, read/write 0.
0 = Reserved
1 = Port 1
2 = Port 2
...
15 = Port 15
DeviceRemoveable. USB ports default to removable devices.
0: Device not removable.
1: Device removable.
Port Bit relationship
0 = Reserved
1 = Port 1
2 = Port 2
...
15 = Port 15
Unimplemented ports are reserved, read/write 0.
ClearRemoteWakeupEnable (Write Only). Writing a 1 to this bit clears DeviceRemoteWakeupEnable. Writing a 0 has no
effect.
Reserved. Read/Write 0s.
OverCurrentIndicatorChange. This bit is set when OverCurrentIndicator changes. Writing a 1 clears this bit. Writing a 0
has no effect.
Read: LocalPowerStatusChange. Not supported. Always read 0.
Write: SetGlobalPower. Write a 1 issues a SetGlobalPower command to the ports. Writing a 0 has no effect.
Read: DeviceRemoteWakeupEnable. This bit enables ports' ConnectStatusChange as a remote wakeup event.
0: Disabled.
1: Enabled.
Write: SetRemoteWakeupEnable. Writing a 1 sets DeviceRemoteWakeupEnable. Writing a 0 has no effect.
Reserved. Read/Write 0s.
OverCurrentIndicator. This bit reflects the state of the OVRCUR pin. This field is only valid if NoOverCurrentProtection
and OverCurrentProtectionMode are cleared.
0: No over-current condition.
1:Over-current condition.
Read: LocalPowerStatus. Not Supported. Always read 0.
Write: ClearGlobalPower. Writing a 1 issues a ClearGlobalPower command to the ports. Writing a 0 has no effect.
Table 6-42. USB_BAR+Memory Offset: USB Controller Registers (Continued)
32579B
HcRhDescriptorB Register (R/W)
HcRhStatus Register (R/W)
Core Logic Module - USB Controller Registers - PCIUSB
AMD Geode™ SC1200/SC1201 Processor Data Book
Reset Value = 00000000h
Reset Value = 00000000h