ST STM32L4x6 User Manual

DocID024597 Rev 3 1531/1693
RM0351 USB on-the-go full-speed (OTG_FS)
1644
The application must clear the OTG_GINTSTS register at initialization before unmasking
the interrupt bit to avoid any interrupts generated prior to initialization.
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
WKUP
INT
SRQ
INT
DISC
INT
CIDS
CHG
LPM
INT
PTXFE HCINT
HPRT
INT
RST
DET
Res.
IPXFR/
IN
COMP
ISO
OUT
IISOI
XFR
OEP
INT
IEPINT Res. Res.
rc_w1 rc_w1 rc_w1 rc_w1 rc_w1 r r r rc_w1 rc_w1 rc_w1 r r
1514131211109876543210
EOPF
ISOO
DRP
ENUM
DNE
USB
RST
USB
SUSP
ESUSP Res. Res.
GO
NAK
EFF
GI
NAK
EFF
NPTXF
E
RXF
LVL
SOF
OTG
INT
MMIS CMOD
rc_w1 rc_w1 rc_w1 rc_w1 rc_w1 rc_w1 r r r r rc_w1 r rc_w1 r
Bit 31 WKUPINT: Resume/remote wakeup detected interrupt
Wakeup interrupt during suspend(L2) or LPM(L1) state.
– During suspend(L2):
In device mode, this interrupt is asserted when a resume is detected on the USB. In host
mode, this interrupt is asserted when a remote wakeup is detected on the USB.
– During LPM(L1):
This interrupt is asserted for either Host Initiated Resume or Device Initiated Remote
Wakeup on USB.
Note: Accessible in both device and host modes.
Bit 30 SRQINT: Session request/new session detected interrupt
In host mode, this interrupt is asserted when a session request is detected from the device.
In device mode, this interrupt is asserted when V
BUS
is in the valid range for a B-peripheral
device. Accessible in both device and host modes.
Bit 29 DISCINT: Disconnect detected interrupt
Asserted when a device disconnect is detected.
Note: Only accessible in host mode.
Bit 28 CIDSCHG: Connector ID status change
The core sets this bit when there is a change in connector ID status.
Note: Accessible in both device and host modes.
Bit 27 LPMINT: LPM interrupt
In device mode, this interrupt is asserted when the device receives an LPM transaction and
responds with a non-ERRORed response.
In host mode, this interrupt is asserted when the device responds to an LPM transaction with
a non-ERRORed response or when the host core has completed LPM transactions for the
programmed number of times (RETRYCNT bit in OTG_GLPMCFG).
This field is valid only if the LPMCAP bit in OTG_GLPMCFG is set to 1.
Bit 26 PTXFE: Periodic Tx FIFO empty
Asserted when the periodic transmit FIFO is either half or completely empty and there is
space for at least one entry to be written in the periodic request queue. The half or
completely empty status is determined by the periodic Tx FIFO empty level bit in the
OTG_GAHBCFG register (PTXFELVL bit in OTG_GAHBCFG).
Note: Only accessible in host mode.

ST STM32L4x6 Specifications

General

Brand	ST
Model	STM32L4x6
Category	Microcontrollers
Language	English