DOEPINT3
Device OUT Endpoint 3 Interrupt Register
| Module Instance | Base Address | Register Address |
|---|---|---|
| i_usbotg_0_DWC_otg_intreg | 0xFFB00000 | 0xFFB00B68 |
| i_usbotg_1_DWC_otg_intreg | 0xFFB40000 | 0xFFB40B68 |
Size: 32
Offset: 0xB68
Access: RW
| Bit Fields | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 |
|
Reserved |
|||||||||||||||
| 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
|
StupPktRcvd RW 0x0 |
NYETIntrpt RW 0x0 |
NAKIntrpt RW 0x0 |
BbleErr RW 0x0 |
PktDrpSts RW 0x0 |
Reserved |
BNAIntr RW 0x0 |
OutPktErr RW 0x0 |
Reserved |
Back2BackSETup RW 0x0 |
StsPhseRcvd RW 0x0 |
OUTTknEPdis RW 0x0 |
SetUp RW 0x0 |
AHBErr RW 0x0 |
EPDisbld RW 0x0 |
XferCompl RW 0x0 |
DOEPINT3 Fields
| Bit | Name | Description | Access | Reset | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 15 | StupPktRcvd |
Setup Packet Received Applicable for Control OUT Endpoints in only in the Buffer DMA Mode Set by the DWC_otg core, this bit indicates that this buffer holds 8 bytes of setup data. There is only one Setup packet per buffer. On receiving a Setup packet, the DWC_otg core closes the buffer and disables the corresponding endpoint. The application has to re-enable the endpoint to receive any OUT data for the Control Transfer and reprogram the buffer start address. Note: Because of the above behavior, the DWC_otg core can receive any number of back to back setup packets and one buffer for every setup packet is used. 1'b0: No Setup packet received 1'b1: Setup packet received Reset: 1'b0
|
RW | 0x0 | ||||||
| 14 | NYETIntrpt |
NYET Interrupt (NYETIntrpt) The core generates this interrupt when a NYET response is transmitted for a non isochronous OUT endpoint.
|
RW | 0x0 | ||||||
| 13 | NAKIntrpt |
NAK Interrupt (NAKInterrupt) The core generates this interrupt when a NAK is transmitted or received by the device. In case of isochronous IN endpoints the interrupt gets generated when a zero length packet is transmitted due to un-availability of data in the TXFifo.
|
RW | 0x0 | ||||||
| 12 | BbleErr |
NAK Interrupt (BbleErr) The core generates this interrupt when babble is received for the endpoint.
|
RW | 0x0 | ||||||
| 11 | PktDrpSts |
Packet Drop Status (PktDrpSts) This bit indicates to the application that an ISOC OUT packet has been dropped. This bit does not have an associated mask bit and does not generate an interrupt. Dependency: This bit is valid in non Scatter/Gather DMA mode when periodic transfer interrupt feature is selected.
|
RW | 0x0 | ||||||
| 9 | BNAIntr |
BNA (Buffer Not Available) Interrupt (BNAIntr) This bit is valid only when Scatter/Gather DMA mode is enabled. The core generates this interrupt when the descriptor accessed is not ready For the Core to process, such as Host busy or DMA done
|
RW | 0x0 | ||||||
| 8 | OutPktErr |
OUT Packet Error (OutPktErr) Applies to OUT endpoints Only This interrupt is valid only when thresholding is enabled. This interrupt is asserted when the core detects an overflow or a CRC error For non-Isochronous OUT packet.
|
RW | 0x0 | ||||||
| 6 | Back2BackSETup |
Back-to-Back SETUP Packets Received (Back2BackSETup) Applies to Control OUT endpoints only. This bit indicates that the core has received more than three back-to-back SETUP packets For this particular endpoint. For information about handling this interrupt,
|
RW | 0x0 | ||||||
| 5 | StsPhseRcvd |
Status Phase Received For Control Write (StsPhseRcvd) This interrupt is valid only For Control OUT endpoints and only in Scatter Gather DMA mode. This interrupt is generated only after the core has transferred all the data that the host has sent during the data phase of a control write transfer, to the system memory buffer. The interrupt indicates to the application that the host has switched from data phase to the status phase of a Control Write transfer. The application can use this interrupt to ACK or STALL the Status phase, after it has decoded the data phase. This is applicable only in Case of Scatter Gather DMA mode.
|
RW | 0x0 | ||||||
| 4 | OUTTknEPdis |
OUT Token Received When Endpoint Disabled (OUTTknEPdis) Applies only to control OUT endpoints. Indicates that an OUT token was received when the endpoint was not yet enabled. This interrupt is asserted on the endpoint For which the OUT token was received.
|
RW | 0x0 | ||||||
| 3 | SetUp |
SETUP Phase Done (SetUp) Applies to control OUT endpoints only. Indicates that the SETUP phase For the control endpoint is complete and no more back-to-back SETUP packets were received For the current control transfer. On this interrupt, the application can decode the received SETUP data packet.
|
RW | 0x0 | ||||||
| 2 | AHBErr |
AHB Error (AHBErr) Applies to IN and OUT endpoints. This is generated only in Internal DMA mode when there is an AHB error during an AHB read/write. The application can read the corresponding endpoint DMA address register to get the error address.
|
RW | 0x0 | ||||||
| 1 | EPDisbld |
Endpoint Disabled Interrupt (EPDisbld) Applies to IN and OUT endpoints. This bit indicates that the endpoint is disabled per the application's request.
|
RW | 0x0 | ||||||
| 0 | XferCompl |
Transfer Completed Interrupt (XferCompl) Applies to IN and OUT endpoints. When Scatter/Gather DMA mode is enabled - For IN endpoint this field indicates that the requested data from the descriptor is moved from external system memory to internal FIFO. - For OUT endpoint this field indicates that the requested data from the internal FIFO is moved to external system memory. This interrupt is generated only when the corresponding endpoint descriptor is closed, and the IOC bit For the corresponding descriptor is Set. When Scatter/Gather DMA mode is disabled, this field indicates that the programmed transfer is complete on the AHB as well as on the USB, For this endpoint.
|
RW | 0x0 |