RM0090: Reference manual - STMicroelectronics

RM0090 USB on-the-go high-speed (OTG_HS)
OTG_HS device V BUS discharge time register (OTG_HS_DVBUSDIS)
Address offset: 0x0828
Reset value: 0x0000 17D7
This register specifies the VBUS discharge time after VBUS pulsing during SRP.
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Reserved
Bits 31:16 Reserved, must be kept at reset value.
OTG_HS device V BUS pulsing time register (OTG_HS_DVBUSPULSE)
Address offset: 0x082C
Reset value: 0x0000 05B8
This register specifies the VBUS pulsing time during SRP.
VBUSDT
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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.
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Reserved
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
DVBUSP
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Doc ID 018909 Rev 3 1224/1416