ST STM32F412 User Manual

RM0402 Rev 6 1061/1163
RM0402 USB on-the-go full-speed (OTG_FS)
1122
29.15.53 OTG device OUT endpoint x transfer size register
(OTG_DOEPTSIZx)
Address offset: 0xB10 + 0x20 * x, (x = 1 to 5)
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.
Bit 15 USBAEP: USB active endpoint
Indicates whether this endpoint is active in the current configuration and interface. The core
clears this bit for all endpoints (other than EP 0) after detecting a USB reset. After receiving
the SetConfiguration and SetInterface commands, the application must program endpoint
registers accordingly and set this bit.
Bits 14:11 Reserved, must be kept at reset value.
Bits 10:0 MPSIZ[10:0]: Maximum packet size
The application must program this field with the maximum packet size for the current logical
endpoint. This value is in bytes.
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
Res.
RXDPID/
STUPCNT[1:0]
PKTCNT[9:0] XFRSIZ[18:16]
r/rw r/rw rw rw rw rw rw rw rw rw rw rw rw rw rw
1514131211109876543210
XFRSIZ[15:0]
rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw
Bit 31 Reserved, must be kept at reset value.

ST STM32F412 Specifications

General

Brand	ST
Model	STM32F412
Category	Microcontrollers
Language	English