MCBSTM32EXL Keil, MCBSTM32EXL Datasheet - Page 703

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

Specifications of MCBSTM32EXL

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

RM0008
26.6
Note:
1
2
interrupt register (OEPINT bit in OTG_FS_GINTSTS or IEPINT bit in OTG_FS_GINTSTS,
respectively) is set. Before the application can read these registers, it must first read the
device all endpoints interrupt (DAINT) register to get the exact endpoint number for the
device endpoint-x interrupt register. The application must clear the appropriate bit in this
register to clear the corresponding bits in the DAINT and GINTSTS registers
●
USB host
This section gives the functional description of the OTG_FS in the USB host mode. The
OTG_FS works as a USB host in the following circumstances:
●
●
●
●
On-chip 5 V V
available on the application board, a basic power switch must be added externally to drive
the 5 V V
required for the OTG A-Host, A-Device and Host-only configurations.
The V
operations while the charge pump overcurrent output can be input to any GPIO pin
the peripheral core provides the following status checks and interrupt generation:
–
–
–
–
–
–
–
–
–
–
–
–
OTG A-Host
–
OTG B-Host
–
A-Device
–
Host only (see figure
–
BUS
BUS
transfer completed interrupt, indicating that data transfer was completed on both
the application (AHB) and USB sides
setup stage has been done (control-out only)
associated transmit FIFO is half or completely empty (in endpoints)
NAK acknowledge has been transmitted to the host (isochonous-in only)
IN token received when Tx-FIFO was empty (bulk-in/interrupt-in only)
out token received when endpoint was not yet enabled
babble error condition has been detected
endpoint disable by application is effective
endpoint NAK by application is effective (isochronous-in only)
more than 3 back-to-back setup packets were received (control-out only)
timeout condition detected (control-in only)
isochronous out packet has been dropped, without generating an interrupt
OTG A-Device default state when the A-side of the USB cable is plugged in
OTG B-Device after HNP switching to the host role
If the ID line is present, functional and connected to the A-side of the USB cable,
and the HNP-capable bit is cleared in the Global USB Configuration register
(HNPCAP bit in OTG_FS_GUSBCFG). Integrated pull-down resistors are
automatically set on the DP/DM lines.
The force host mode bit in the global USB configuration register (FHMOD bit in
OTG_FS_GUSBCFG) forces the OTG_FS core to work as a USB Host-only. In
this case, the ID line is ignored even if present on the USB connector. Integrated
pull-down resistors are automatically set on the DP/DM lines.
input ensures that valid V
line. The external charge pump can be driven by any GPIO output. This is
BUS
generation is not supported. For this reason, a charge pump or, if 5 V are
Figure 263: USB host only
Doc ID 13902 Rev 9
BUS
levels are supplied by the charge pump during USB
USB on-the-go full-speed (OTG_FS)
connection).
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