Cirrus Logic EP93 Series User Manual page 472

Universal Serial Bus Host Controller
EP93xx User's Guide
HcRhPortStatusx
31 30
15 14
11
Address:
Default:
Definition:
Bit Descriptions:
Note: This bit is always read "1" when the attached device is nonremovable
11-32
29 28 27 26
RSVD
13 12 11 10
RSVD
HcRhPortStatus1 - 0x8002_0054,
HcRhPortStatus2 - 0x8002_0058,
HcRhPortStatus3 - 0x8002_005C
0x0000_0100
Control/status for root hub port 1, 2, and 3 respectively
CCS:
(DeviceRemoveable.NDP).
25 24 23 22
9 8 7 6
LSDA PPS RSVD
(READ) CurrentConnectStatus: This bit reflects the current
state of the downstream port.
0 = no device connected
1 = device connected
(WRITE) ClearPortEnable: The HCD writes a "1" to this bit
to clear the PortEnableStatus bit. Writing a "0" has no
effect. The CurrentConnectStatus is not affected by any
write.
Copyright 2007 Cirrus Logic
21 20 19 18
PRSC OCIC PSSC
5 4 3 2
PRS POCI PSS
17 16
PESC CSC
1 0
PES CCS
DS785UM1