BMSKTOPASA900(DCE) Toshiba, BMSKTOPASA900(DCE) Datasheet - Page 907

• Manufacturer Part Number: BMSKTOPASA900(DCE)
• Description: KIT STARTER TMPA900 USB JTAG
• Manufacturer: Toshiba
• Series: TOPASr
• Type: MCUr

Specifications of BMSKTOPASA900(DCE)

• Contents: Evaluation Board, Cable(s), Software and Documentation
• For Use With/related Products: TMPA900CMXBG
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

[1]
[0]
Bit
Mnemonic
PES
CCS
PortEnable
Status
CurrentConnect
Status
Field name
TENTATIVE
TMPA900CM- 906
(read)PortEnableStatus
This bit indicates whether the port is enabled or disabled. The Root
Hub may clear this bit when an overcurrent condition, disconnect
event, switched-off power, or operational bus error such as babble is
detected. This change also causes PortEnabledStatusChange to be
set. HCD sets this bit by writing SetPortEnable and clears it by writing
ClearPortEnable. This bit cannot be set when CurrentConnectStatus
is cleared. This bit is also set, at the completion of a port reset when
ResetStatusChange is set or when port is suspend when
SuspendStatusChange is set.
0: Port is disabled
1: Port is enabled
(write)SetPortEnable
HCD sets PortEnableStatus by writing a 1. Writing a 0 has no effect. If
CurrentConnectStatus is cleared, this write does not set
PortEnableStatus, but instead sets ConnectStatusChange. This
informs the driver that it attempted to enable a disconnected port.
(read)CurrentConnectStatus
This bit reflects the current state of the downstream port.
0: No device is connected
1: A device is connected
(write)ClearPortEnable
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.
Note:
This bit always reads 1 when the attached device is nonremovable
(DeviceRemoveable[NDP]).
Function
TMPA900CM
2009-10-14