OTG_CTL

OTG_STATUS

OTG_PHYCTL

OTG_INTEN

OTG_INTSTS

VBUSDROP : Drop VBUS Control If user application running on this OTG A-device wants to conserve power, set this bit to drop VBUS. BUSREQ (OTG_CTL[1]) will be also cleared no matter A-device or B-device.
bits : 0 - 0 (1 bit)
access : read-write

Enumeration:

End of enumeration elements list.

BUSREQ : OTG Bus Request If OTG A-device wants to do data transfers via USB bus, setting this bit will drive VBUS high to detect USB device connection. If user won't use the bus any more, clearing this bit will drop VBUS to save power. This bit will be cleared when A-device goes to A_wait_vfall state. This bit will be also cleared if VBUSDROP (OTG_CTL[0]) bit is set or IDSTS (OTG_STATUS[1]) changed. If user of an OTG-B Device wants to request VBUS, setting this bit will run SRP protocol. This bit will be cleared if SRP failure (OTG A-device does not provide VBUS after B-device issues SRP in specified interval, defined in OTG specification). This bit will be also cleared if VBUSDROP (OTG_CTL[0]) bit is set or IDSTS (OTG_STATUS[1]) changed.
bits : 1 - 1 (1 bit)
access : read-write

Enumeration:

End of enumeration elements list.

HNPREQEN : OTG HNP Request Enable Bit When USB frame as A-device, set this bit when A-device allows to process HNP protocolA-device changes role from Host to Peripheral. This bit will be cleared when OTG state changes from a_suspend to a_peripheral or goes back to a_idle state. When USB frame as B-device, set this bit after the OTG A-device successfully sends a SetFeature (b_hnp_enable) command to the OTG B-device to start role changeB-device changes role from Peripheral to Host. This bit will be cleared when OTG state changes from b_peripheral to b_wait_acon or goes back to b_idle state. Note: Refer to OTG specification to get a_suspend, a_peripheral, a_idle and b_idle state.
bits : 2 - 2 (1 bit)
access : read-write

Enumeration:

End of enumeration elements list.

OTGEN : OTG Function Enable Bit User needs to set this bit to enable OTG function while USB frame configured as OTG device. When USB frame is not configured as OTG device, this bit must be low.
bits : 4 - 4 (1 bit)
access : read-write

Enumeration:

End of enumeration elements list.

WKEN : OTG ID Pin Wake-up Enable Bit
bits : 5 - 5 (1 bit)
access : read-write

Enumeration:

End of enumeration elements list.

OVERCUR : Overcurrent Condition The voltage on VBUS cannot reach a minimum VBUS valid threshold, 4.4V minimum, within a maximum time of 100ms after OTG A-device drives VBUS high.
bits : 0 - 0 (1 bit)
access : read-only

Enumeration:

End of enumeration elements list.

IDSTS : USB_ID Pin State of Mini-/Micro- Plug
bits : 1 - 1 (1 bit)
access : read-only

Enumeration:

End of enumeration elements list.

SESSEND : Session End Status When VBUS voltage is lower than 0.4V, this bit will be set to 1. Session end means no meaningful power on VBUS.
bits : 2 - 2 (1 bit)
access : read-only

Enumeration:

End of enumeration elements list.

BVLD : B-device Session Valid Status
bits : 3 - 3 (1 bit)
access : read-only

Enumeration:

End of enumeration elements list.

AVLD : A-Device Session Valid Status
bits : 4 - 4 (1 bit)
access : read-only

Enumeration:

End of enumeration elements list.

VBUSVLD : VBUS Valid Status When VBUS is larger than 4.7V, this bit will be set to 1.
bits : 5 - 5 (1 bit)
access : read-only

Enumeration:

End of enumeration elements list.

ASPERI : As Peripheral Status When OTG acts as peripheral, this bit is set.
bits : 6 - 6 (1 bit)
access : read-only

Enumeration:

End of enumeration elements list.

ASHOST : As Host Status When OTG acts as Host, this bit is set.
bits : 7 - 7 (1 bit)
access : read-only

Enumeration:

End of enumeration elements list.

OTGPHYEN : OTG PHY Enable Bit When USB frame is configured as either OTG device or ID dependent, user needs to set this bit before using OTG function. If device is configured as neither OTG device nor ID dependent, this bit is 'don't care'.
bits : 0 - 0 (1 bit)
access : read-write

Enumeration:

End of enumeration elements list.

IDDETEN : ID Detection Enable Bit
bits : 1 - 1 (1 bit)
access : read-write

Enumeration:

End of enumeration elements list.

VBENPOL : Off-chip USB VBUS Power Switch Enable Polarity The OTG controller will enable off-chip USB VBUS power switch to provide VBUS power when need. A USB_VBUS_EN pin is used to control the off-chip USB VBUS power switch. The polarity of enabling off-chip USB VBUS power switch (high active or low active) depends on the selected component. Set this bit as following according to the polarity of off-chip USB VBUS power switch.
bits : 4 - 4 (1 bit)
access : read-write

Enumeration:

End of enumeration elements list.

VBSTSPOL : Off-chip USB VBUS Power Switch Status Polarity The polarity of off-chip USB VBUS power switch valid signal depends on the selected component. A USB_VBUS_ST pin is used to monitor the valid signal of the off-chip USB VBUS power switch. Set this bit as following according to the polarity of off-chip USB VBUS power switch.
bits : 5 - 5 (1 bit)
access : read-write

Enumeration:

End of enumeration elements list.

ROLECHGIEN : Role (Host or Peripheral) Changed Interrupt Enable Bit
bits : 0 - 0 (1 bit)
access : read-write

Enumeration:

End of enumeration elements list.

VBEIEN : VBUS Error Interrupt Enable Bit Note: VBUS error means going to a_vbus_err state. Please refer to A-device state diagram in OTG specification.
bits : 1 - 1 (1 bit)
access : read-write

Enumeration:

End of enumeration elements list.

SRPFIEN : SRP Fail Interrupt Enable Bit
bits : 2 - 2 (1 bit)
access : read-write

Enumeration:

End of enumeration elements list.

HNPFIEN : HNP Fail Interrupt Enable Bit
bits : 3 - 3 (1 bit)
access : read-write

Enumeration:

End of enumeration elements list.

GOIDLEIEN : OTG Device Goes to IDLE State Interrupt Enable Bit Note: Going to idle state means going to a_idle or b_idle state. Please refer to A-device state diagram and B-device state diagram in OTG specification.
bits : 4 - 4 (1 bit)
access : read-write

Enumeration:

End of enumeration elements list.

IDCHGIEN : IDSTS Changed Interrupt Enable Bit If this bit is set to 1 and IDSTS (OTG_STATUS[1]) status is changed from high to low or from low to high, an interrupt will be asserted.
bits : 5 - 5 (1 bit)
access : read-write

Enumeration:

End of enumeration elements list.

PDEVIEN : Act As Peripheral Interrupt Enable Bit If this bit is set to 1 and the device is changed as a peripheral, an interrupt will be asserted.
bits : 6 - 6 (1 bit)
access : read-write

Enumeration:

End of enumeration elements list.

HOSTIEN : Act As Host Interrupt Enable Bit If this bit is set to 1 and the device is changed as a host, an interrupt will be asserted.
bits : 7 - 7 (1 bit)
access : read-write

Enumeration:

End of enumeration elements list.

BVLDCHGIEN : B-device Session Valid Status Changed Interrupt Enable Bit If this bit is set to 1 and BVLD (OTG_STATUS[3]) status is changed from high to low or from low to high, an interrupt will be asserted.
bits : 8 - 8 (1 bit)
access : read-write

Enumeration:

End of enumeration elements list.

AVLDCHGIEN : A-Device Session Valid Status Changed Interrupt Enable Bit If this bit is set to 1 and AVLD (OTG_STATUS[4]) status is changed from high to low or from low to high, an interrupt will be asserted.
bits : 9 - 9 (1 bit)
access : read-write

Enumeration:

End of enumeration elements list.

VBCHGIEN : VBUSVLD Status Changed Interrupt Enable Bit If this bit is set to 1 and VBUSVLD (OTG_STATUS[5]) status is changed from high to low or from low to high, an interrupt will be asserted.
bits : 10 - 10 (1 bit)
access : read-write

Enumeration:

End of enumeration elements list.

SECHGIEN : SESSEND Status Changed Interrupt Enable Bit If this bit is set to 1 and SESSEND (OTG_STATUS[2]) status is changed from high to low or from low to high, an interrupt will be asserted.
bits : 11 - 11 (1 bit)
access : read-write

Enumeration:

End of enumeration elements list.

SRPDETIEN : SRP Detected Interrupt Enable Bit
bits : 13 - 13 (1 bit)
access : read-write

Enumeration:

End of enumeration elements list.

ROLECHGIF : OTG Role Change Interrupt Status This flag is set when the role of an OTG device changed from a host to a peripheral, or changed from a peripheral to a host while USB_ID pin status does not change. Note: Write 1 to clear this flag.
bits : 0 - 0 (1 bit)
access : read-write

Enumeration:

End of enumeration elements list.

VBEIF : VBUS Error Interrupt Status This bit will be set when voltage on VBUS cannot reach a minimum valid threshold 4.4V within a maximum time of 100ms after OTG A-device starting to drive VBUS high. Note: Write 1 to clear this flag and recover from the VBUS error state.
bits : 1 - 1 (1 bit)
access : read-write

Enumeration:

End of enumeration elements list.

SRPFIF : SRP Fail Interrupt Status After initiating SRP, an OTG B-device will wait for the OTG A-device to drive VBUS high at least TB_SRP_FAIL minimum, defined in OTG specification. This flag is set when the OTG B-device does not get VBUS high after this interval. Note: Write 1 to clear this flag.
bits : 2 - 2 (1 bit)
access : read-write

Enumeration:

End of enumeration elements list.

HNPFIF : HNP Fail Interrupt Status When A-device has granted B-device to be host and USB bus is in SE0 (both USB_D+ and USB_D- low) state, this bit will be set when A-device does not connect after specified interval expires. Note: Write 1 to clear this flag.
bits : 3 - 3 (1 bit)
access : read-write

Enumeration:

End of enumeration elements list.

GOIDLEIF : OTG Device Goes to IDLE Interrupt Status Flag is set if the OTG device transfers from non-idle state to idle state. The OTG device will be neither a host nor a peripheral. Note 1: Going to idle state means going to a_idle or b_idle state. Please refer to OTG specification. Note 2: Write 1 to clear this flag.
bits : 4 - 4 (1 bit)
access : read-write

Enumeration:

End of enumeration elements list.

IDCHGIF : ID State Change Interrupt Status Note: Write 1 to clear this flag.
bits : 5 - 5 (1 bit)
access : read-write

Enumeration:

End of enumeration elements list.

PDEVIF : Act As Peripheral Interrupt Status Note: Write 1 to clear this flag.
bits : 6 - 6 (1 bit)
access : read-write

Enumeration:

End of enumeration elements list.

HOSTIF : Act As Host Interrupt Status Note: Write 1 to clear this flag.
bits : 7 - 7 (1 bit)
access : read-write

Enumeration:

End of enumeration elements list.

BVLDCHGIF : B-device Session Valid State Change Interrupt Status Note: Write 1 to clear this status.
bits : 8 - 8 (1 bit)
access : read-write

Enumeration:

End of enumeration elements list.

AVLDCHGIF : A-Device Session Valid State Change Interrupt Status Note: Write 1 to clear this status.
bits : 9 - 9 (1 bit)
access : read-write

Enumeration:

End of enumeration elements list.

VBCHGIF : VBUSVLD State Change Interrupt Status Note: Write 1 to clear this status.
bits : 10 - 10 (1 bit)
access : read-write

Enumeration:

End of enumeration elements list.

SECHGIF : SESSEND State Change Interrupt Status Note: Write 1 to clear this flag.
bits : 11 - 11 (1 bit)
access : read-write

Enumeration:

End of enumeration elements list.

SRPDETIF : SRP Detected Interrupt Status Note: Write 1 to clear this status.
bits : 13 - 13 (1 bit)
access : read-write

Enumeration:

End of enumeration elements list.