Freescale Semiconductor MCF54455 Reference Manual page 246

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Field
19
B session valid interrupt status. Indicates when VBUS rises above or falls below the B session valid threshold (0.8
BSVIS
VDC). Software must write a 1 to clear this bit.
18
A session valid interrupt status. Indicates when VBUS rises above or falls below the A session valid threshold (0.8
ASVIS
VDC). Software must write a 1 to clear this bit.
17
A VBUS valid interrupt status. Indicates when VBUS rises above or falls below the VBUS valid threshold (4.4
AVVIS
VDC) on an A device. Software must write a 1 to clear this bit.
16
USB ID interrupt status. Indicates when a change on the ID input is detected. Software must write a 1 to clear this
IDIS
bit.
15
Reserved, must be cleared.
14
Data bus pulsing status.
DPS
0 No pulsing on port.
1 Pulsing detected on port.
13
1 millisecond timer toggle. This bit toggles once per millisecond.
1MST
12
B session end.
BSE
0 VBus is above B session end threshold.
1 VBus is below B session end threshold.
11
B Session valid.
BSV
0 VBus is below B session valid threshold.
1 VBus is above B session valid threshold.
10
A Session valid.
ASV
0 VBus is below A session valid threshold.
1 VBus is above A session valid threshold.
9
A VBus valid.
AVV
0 VBus is below A VBus valid threshold.
1 VBus is above A VBus valid threshold.
8
USB ID.
ID
0 A device.
1 B device.
7–6
Reserved, must be cleared.
5
ID Pull-up. Provides control over the ID pull-up resistor.
IDPU
0 Disable pull-up. ID input not sampled.
1 Enable pull-up.
4
Data pulsing.
DP
0 The pull-up on DP is not asserted.
1 The pull-up on DP is asserted for data pulsing during SRP.
3
OTG Termination. This bit must be set with the OTG module in device mode.
OT
0 Disable pull-down on DM.
1 Enable pull-down on DM.
2
Reserved, must be cleared.
Freescale Semiconductor
Table 10-34. OTGSC Field Descriptions (continued)
Universal Serial Bus Interface – On-The-Go Module
Description
10-39

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