Freescale Semiconductor MCF54455 Reference Manual page 299

Chip Configuration Module (CCM)
Field
15–14 Reserved, must be cleared.
13 D+ 15 k pull-down. Indicates the 15-k pull-down on the OTG D+ line is active. When set, asserts an interrupt
DPPD if the UOMIE bit is set.
12 D- 15 k pull-down. Indicates the 15-k pull-down on the OTG D- line is active. When set, asserts an interrupt
DMPD if the UOMIE bit is set.
11 Reserved, must be cleared.
10 Charge VBUS. Indicates a charge resistor to pull-up VBUS is enabled. When set, asserts an interrupt if the
CRG_VBUS UOMIE bit is set.
9 Discharge VBUS. Indicates a discharge resistor to pull-down VBUS is enabled. When set, asserts an interrupt if
DCR_VBUS the UOMIE bit is set.
8 D+ pull-up control. Indicates pull-up on D+ for FS-only applications is enabled. When set, asserts an interrupt if
DPPU the UOMIE bit is set.
7 A-peripheral is valid. Indicates if the session for an A-peripheral is valid.
AVLD 0 Session is not valid for an A-peripheral.
1 Session is valid for an A-peripheral.
6 B-peripheral is valid. Indicates if the session for a B-peripheral is valid.
BVLD 0 Session is not valid for a B-peripheral.
1 Session is valid for a B-peripheral.
5 VBUS valid. Indicates if voltage on VBUS is at a valid level for operation.
VVLD 0 Voltage level on VBUS is not valid for operation.
1 Voltage level on VBUS is valid for operation.
4 Session end. Indicates if voltage on VBUS has dropped below the session end threshold.
SEND 0 Voltage on VBUS has not dropped below the session end threshold
1 Voltage on VBUS has dropped below the session end threshold
3 VBUS power fault. Indicates a power fault has occurred on VBUS (e.g. overcurrent).
PWRFLT 0 No power fault has occurred.
1 Power fault has occurred.
2 USB OTG controller wake-up event. Reflects if a wake-up event has occurred on the USB OTG controller bus
WKUP 0 No outstanding wake-up event.
1 Wake-up event has occurred.
1 USB OTG miscellaneous interrupt enable. Enables an interrupt to generate from any of the following UOCSR
UOMIE bits: DPPD, DMPD, CRG_VBUS, DCR_VBUS, DPPU, and WKUP
0 Interrupt sources are disabled.
1 Interrupt sources are enabled.
0 On-chip transceiver pull-down enable.
XPDE 0 50 k pull-downs disabled on OTG D+ and D- pins of on-chip transceiver.
1 On-chip 50 k pull-downs enabled on OTG D+ and D- transceiver pins of on-chip transceiver.
11-12
Table 11-10. UOCSR Field Descriptions
Description
Freescale Semiconductor