stm32 /stm32h7rs /STM32H7R /OTG_HS /OTG_GRXSTSP_DEVICE

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Interpret as OTG_GRXSTSP_DEVICE

DPID=B_0x0

Description

OTG status read and pop registers

Fields

EPNUM	Endpoint number Indicates the endpoint number to which the current received packet belongs.
BCNT	Byte count Indicates the byte count of the received data packet.
DPID	Data PID Indicates the data PID of the received OUT data packet 0 (B_0x0): DATA0 1 (B_0x1): DATA2 2 (B_0x2): DATA1 3 (B_0x3): MDATA
PKTSTS	Packet status Indicates the status of the received packet Others: Reserved 1 (B_0x1): Global OUT NAK (triggers an interrupt) 2 (B_0x2): OUT data packet received 3 (B_0x3): OUT transfer completed (triggers an interrupt) 4 (B_0x4): SETUP transaction completed (triggers an interrupt) 6 (B_0x6): SETUP data packet received
FRMNUM	Frame number This is the least significant 4 bits of the frame number in which the packet is received on the USB. This field is supported only when isochronous OUT endpoints are supported.
STSPHST	Status phase start Indicates the start of the status phase for a control write transfer. This bit is set along with the OUT transfer completed PKTSTS pattern.

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