RM0090: Reference manual - STMicroelectronics

USB on-the-go high-speed (OTG_HS) RM0090
Bit 9 BIM: BNA interrupt mask
0: Masked interrupt
1: Unmasked interrupt
Bit 8 OPEM: OUT packet error mask
0: Masked interrupt
1: Unmasked interrupt
Bits 7:3 Reserved, must be kept at reset value.
Bit 2 AHBERRM: AHB error mask
0: Masked interrupt
1: Unmasked interrupt
Bit 1 EPDM: Endpoint disabled interrupt mask
0: Masked interrupt
1: Unmasked interrupt
Bit 0 XFRCM: Transfer completed interrupt mask
0: Masked interrupt
1: Unmasked interrupt
OTG device endpoint-x control register (OTG_HS_DIEPCTLx) (x = 0..7, where
x = Endpoint_number)
Address offset: 0x900 + (Endpoint_number × 0x20)
Reset value: 0x0000 0000
The application uses this register to control the behavior of each logical endpoint other than
endpoint 0.
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
EPENA
EPDIS
SODDFRM
SD0PID/SEVNFRM
SNAK
CNAK
TXFNUM
1229/1416 Doc ID 018909 Rev 3
Stall
rs rs w w w w rw rw rw rw rw/
rs
Reserved
EPTYP
NAKSTS
EONUM/DPID
USBAEP
Reserved
MPSIZ
rw rw r r rw rw rw rw rw rw rw rw rw rw rw rw
Bit 31 EPENA: Endpoint enable
The application sets this bit to start transmitting data on an endpoint.
The core clears this bit before setting any of the following interrupts on this endpoint:
– SETUP phase done
– Endpoint disabled
– Transfer completed
Bit 30 EPDIS: Endpoint disable
The application sets this bit to stop transmitting/receiving data on an endpoint, even before
the transfer for that endpoint is complete. The application must wait for the Endpoint
disabled interrupt before treating the endpoint as disabled. The core clears this bit before
setting the Endpoint disabled interrupt. The application must set this bit only if Endpoint
enable is already set for this endpoint.