MCBSTM32EXL Keil, MCBSTM32EXL Datasheet - Page 724

• Manufacturer Part Number: MCBSTM32EXL
• Description: BOARD EVALUATION FOR STM32F103ZE
• Manufacturer: Keil

Specifications of MCBSTM32EXL

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

USB on-the-go full-speed (OTG_FS)
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31 30 29 28 27 26 25 24 23 22 21 20 19
Bits 31:20 Reserved.
Bits 7:2 Reserved
Bit 19 DBCDNE: Debounce done
OTG_FS interrupt register (OTG_FS_GOTGINT)
Address offset: 0x04
Reset value: 0x0000 0000
The application reads this register whenever there is an OTG interrupt and clears the bits in
this register to clear the OTG interrupt.
Bit 8 HNGSCS: Host negotiation success
Bit 1 SRQ: Session request
Bit 0 SRQSCS: Session request success
Reserved
The core sets this bit when host negotiation is successful. The core clears this bit when the
HNP Request (HNPRQ) bit in this register is set.
Note: Only accessible in Device mode.
The application sets this bit to initiate a session request on the USB. The application can clear
this bit by writing a 0 when the host negotiation success status change bit in the OTG Interrupt
register (HNSSCHG bit in OTG_FS_GOTGINT) is set. The core clears this bit when the
HNSSCHG bit is cleared.
If you use the USB 1.1 full-speed serial transceiver interface to initiate the session request, the
application must wait until V
(BSVLD bit in OTG_FS_GOTGCTL) is cleared. This discharge time varies between different
PHYs and can be obtained from the PHY vendor.
Note: Only accessible in Device mode.
The core sets this bit when a session request initiation is successful.
Note: Only accessible in Device mode.
The core sets this bit when the debounce is completed after the device connect. The
application can start driving USB reset after seeing this interrupt. This bit is only valid when the
HNP Capable or SRP Capable bit is set in the Core USB Configuration register (HNPCAP bit or
SRPCAP bit in OTG_FS_GUSBCFG, respectively).
Note: Only accessible in Host mode.
0: Host negotiation failure
1: Host negotiation success
0: No session request
1: Session request
0: Session request failure
1: Session request success
rc_
w1
rc_
w1
18
Doc ID 13902 Rev 9
BUS
rc_
w1
17
discharges to 0.2 V, after the B-Session Valid bit in this register
16 15 14 13 12 11 10
Reserved
rc_
w1
9
rc_
w1
8
7
6
Reserved
5
4
3
rc_
w1
2
RM0008
1
Res.
0