Freescale Semiconductor MCF5329 Reference Manual page 192

Chip Configuration Module (CCM)
Address: 0xFC0A_0016 (UOCSR)
15 14 13
R
PORTIND DPPD DMPD
W
Reset 0 0 0
Figure 9-8. USB On-the-Go Controller Status Register (UOCSR)
Field
15–14 USB port indicator. Reflects the state of the OTG controller port indicator signals.
PORTIND
13 D+ 15 kΩ pull-down. Indicates the 15-kΩ pull-down on the OTG D+ line is active. When set, it asserts an interrupt
DPPD if the UOMIE bit is set.
12 D- 15 kΩ pull-down. Indicates the 15-kΩ pull-down on the OTG D- line is active. When set, it asserts an interrupt
DMPD if the UOMIE bit is set.
11 Drive VBUS. Indicates the drive of the 5V power on VBUS is enabled.
DRV_VBUS
10 Charge VBUS. Indicates a charge resistor to pull-up VBUS is enabled. When set, it 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, it asserts an interrupt
DCR_VBUS if the UOMIE bit is set.
8 D+ pull-up control. Indicates pull-up on D+ for FS-only applications is enabled. When set, it asserts an interrupt
DPPU if 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 that a power fault has occured on VBUS (e.g. overcurrent).
PWRFLT 0 No power fault has occured.
1 Power fault has occured.
2 USB OTG controller wakeup event. Reflects if a wakeup event has occured on the USB OTG Controller Bus
WKUP 0 No outstanding wakeup event.
1 Wakup event has occurred.
9-8
12 11 10 9
DRV_ CRG_ DCR_
DPPU
VBUS VBUS VBUS
0 0 0 0
Table 9-8. UOCSR Field Description
MCF5329 Reference Manual, Rev 3
8 7 6 5
AVLD BVLD VVLD SEND
0 0 0 0
Description
Access: Supervisor read/write
4 3 2 1
PWR
WKUP UOMIE XPDE
FLT
1 0 0 0
Freescale Semiconductor
0
0