Otg Usb Configuration Register (Otg_Gusbcfg) - ST STM32F413 Reference Manual

RM0430
31 30 29
Res. Res. Res. Res.
15 14 13
Res. Res. Res. Res.
Bits 31:20 Reserved, must be kept at reset value.
Bit 8 PTXFELVL: Periodic Tx FIFO empty level
Indicates when the periodic Tx FIFO empty interrupt bit in the OTG_GINTSTS register
(PTXFE bit in OTG_GINTSTS) is triggered.
0: PTXFE (in OTG_GINTSTS) interrupt indicates that the Periodic Tx FIFO is half empty
1: PTXFE (in OTG_GINTSTS) interrupt indicates that the Periodic Tx FIFO is completely
empty
Note: Only accessible in host mode.
Bit 7 TXFELVL: Tx FIFO empty level
In device mode, this bit indicates when IN endpoint Transmit FIFO empty interrupt (TXFE in
OTG_DIEPINTx) is triggered:
0:The TXFE (in OTG_DIEPINTx) interrupt indicates that the IN Endpoint Tx FIFO is half
empty
1:The TXFE (in OTG_DIEPINTx) interrupt indicates that the IN Endpoint Tx FIFO is
completely empty
In host mode, this bit indicates when the nonperiodic Tx FIFO empty interrupt (NPTXFE bit in
OTG_GINTSTS) is triggered:
0:The NPTXFE (in OTG_GINTSTS) interrupt indicates that the nonperiodic Tx FIFO is half
empty
1:The NPTXFE (in OTG_GINTSTS) interrupt indicates that the nonperiodic Tx FIFO is
completely empty
Bits 6:1 Reserved, must be kept at reset value .
Bit 0 GINTMSK: Global interrupt mask
The application uses this bit to mask or unmask the interrupt line assertion to itself.
Irrespective of this bit's setting, the interrupt status registers are updated by the core.
0: Mask the interrupt assertion to the application.
1: Unmask the interrupt assertion to the application.
Note: Accessible in both device and host modes.
33.15.4

OTG USB configuration register (OTG_GUSBCFG)

Address offset: 0x00C
Reset value: 0x0000 1440
This register can be used to configure the core after power-on or a changing to host mode
or device mode. It contains USB and USB-PHY related configuration parameters. The
application must program this register before starting any transactions on either the AHB or
the USB. Do not make changes to this register after the initial programming.
28 27 26 25
Res. Res. Res.
12 11 10 9
Res. Res. Res.
DocID029473 Rev 3
USB on-the-go full-speed (OTG_FS)
24 23 22 21
Res. Res. Res. Res.
8 7 6
PTXFE TXFE
Res. Res.
LVL LVL
rw rw
20 19 18
Res. Res. Res.
5 4 3 2
Res. Res. Res.
17 16
Res. Res.
1 0
GINT
Res.
MSK
rw
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