ST STM32F40 Series User Manual

RM0090 USB on-the-go high-speed (OTG_HS)
Doc ID 018909 Rev 4 1228/1422
OTG_HS device V
BUS
discharge time register (OTG_HS_DVBUSDIS)
Address offset: 0x0828
Reset value:
0x0000 17D7
This register specifies the V
BUS
discharge time after V
BUS
pulsing during SRP.
OTG_HS device V
BUS
pulsing time register (OTG_HS_DVBUSPULSE)
Address offset: 0x082C
Reset value: 0x0000 05B8
This register specifies the V
BUS
pulsing time during SRP.
313029282726252423222120191817161514131211109876543210
Reserved
VBUSDT
rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw
Bits 31:16 Reserved, must be kept at reset value.
Bits 15:0 VBUSDT: Device V
BUS
discharge time
Specifies the V
BUS
discharge time after V
BUS
pulsing during SRP. This value equals:
V
BUS
discharge time in PHY clocks / 1 024
Depending on your V
BUS
load, this value may need adjusting.
313029282726252423222120191817161514131211109876543210
Reserved
DVBUSP
rw rw rw rw rw rw rw rw rw rw rw rw
Bits 31:12 Reserved, must be kept at reset value.
Bits 11:0 DVBUSP: Device V
BUS
pulsing time
Specifies the V
BUS
pulsing time during SRP. This value equals:
V
BUS
pulsing time in PHY clocks / 1 024

ST STM32F40 Series Specifications

General

Brand	ST
Model	STM32F40 Series
Category	Microcontrollers
Language	English