ST STM32F413 Reference Manual page 1185

RM0430
33.15.49 OTG device IN endpoint transmit FIFO status register
(OTG_DTXFSTSx) (x = 0..5, where
x = Endpoint_number)
Address offset for IN endpoints: 0x918 + (Endpoint_number × 0x20) This read-only register
contains the free space information for the Device IN endpoint Tx FIFO.
31 30 29
Res. Res. Res. Res.
15 14 13
r r r
31:16 Reserved, must be kept at reset value.
15:0 INEPTFSAV: IN endpoint Tx FIFO space available
Indicates the amount of free space available in the Endpoint Tx FIFO.
Values are in terms of 32-bit words:
0x0: Endpoint Tx FIFO is full
0x1: 1 word available
0x2: 2 words available
0xn: n words available
Others: Reserved
33.15.50 OTG device OUT endpoint-x transfer size register
(OTG_DOEPTSIZx) (x = 1..5,
where x = Endpoint_number)
Address offset: 0xB10 + (Endpoint_number × 0x20)
Reset value: 0x0000 0000
The application must modify this register before enabling the endpoint. Once the endpoint is
enabled using Endpoint Enable bit of the OTG_DOEPCTLx registers (EPENA bit in
OTG_DOEPCTLx), the core modifies this register. The application can only read this
register once the core has cleared the Endpoint enable bit.
31 30 29
RXDPID/
Res.
STUPCNT
r/rw r/rw
15 14 13
rw rw rw
28 27 26 25
Res. Res. Res.
12 11 10 9
r r r r
28 27 26 25
rw rw rw rw
12 11 10 9
rw rw rw rw
DocID029473 Rev 3
USB on-the-go full-speed (OTG_FS)
24 23 22 21
Res. Res. Res. Res.
8 7 6 5
INEPTFSAV
r r r r
24 23 22 21
PKTCNT
rw rw rw rw
8 7 6 5
XFRSIZ
rw rw rw rw
20 19 18 17
Res. Res. Res. Res.
4 3 2 1
r r r r
20 19 18 17
XFRSIZ
rw rw rw rw
4 3 2 1
rw rw rw rw
16
Res.
0
r
16
rw
0
rw
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