Samsung S5PC100 User Manual page 836

USB HOST CONTROLLER
UHCRHPSTAT
1
Reserved [31:21]
PRSC [20]
POCIC [19]
PSSC [18]
PESC [17]
CSC [16]
8.9-36
Table 8.9-22 UHCRHPSTAT1 Bit Definitions
Bit
Read as unknown and must be written as zero.
PortResetStatusChange
This bit is set at the end of the 10-ms port reset signal.
A 1 indicates that the port reset has completed. A 0
indicates that the port reset is not yet complete. The
HCD writes a 1 to clear this bit. Writing a 0 has no
effect.
0 = Port reset is not complete.
1 = Port reset is complete.
PortOverCurrentIndicatorChange
This bit is valid only if over-current conditions are
reported on a per-port basis. This bit is set if root hub
changes the port over-current indicator bit. The HCD
writes a 1 to clear this bit. Writing a 0 has no effect
0 = No change in PortOverCurrentIndicator.
1 = PortOverCurrentIndicator has changed.
PortSuspendStatusChange
This bit is set by the UHC if the full resume sequence is
complete. This sequence includes the 20-ms resume
pulse, LS EOP, and 3-ms re-synchronization delay. The
HCD writes a 1 to clear this bit. Writing a 0 has no
effect. This bit is cleared if PortResetStatusChange is
set.
0 = Resume is not complete.
1 = Resume completed.
PortEnableStatusChange
This bit is set if events (such as over-current condition,
disconnect, switched-off power, or operational bus
error-babble), cause the PortEnableStatus bit to be
cleared. Changes from HCD writes do not set this bit.
The HCD writes a 1 to clear this bit. Writing a 0 has no
effect
0 = No change in PortEnableStatus.
1 = Change in PortEnableStatus.
ConnectStatusChange
This bit is set by hardware whenever connect or
disconnect event occurs. The HCD writes a 1 to clear
this bit. Writing a 0 has no effect. If
CurrentConnectStatus is cleared when a set-port-reset,
set-port-enable, or set-port-suspend write occurs, this
bit is set to force the driver to reevaluate the connection
status since these writes must not occur if the port is
disconnected.
0 = No change in CurrentConnectStatus.
1 = Change in CurrentConnectStatus.
NOTE: If the device removable bit in the Root Hub
Description
S5PC100 USER'S MANUAL (REV1.0)
R/W Reset Value
-
R/W
R/W
R/W
R/W
R/W