MCBSTM32EXL Keil, MCBSTM32EXL Datasheet - Page 704

• 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)
26.6.1
26.6.2
704/995
configured to generate port interrupts. The overcurrent ISR must promptly disable the V
generation.
Figure 263. USB host only connection
1. ST20x2 only needed if the application has to support a V
2. V
SRP-capable host
SRP support is available through the SRP capable bit in the global USB configuration
register (SRPCAP bit in OTG_FS_GUSBCFG). With the SRP feature enabled, the Host can
save power by switching off the V
The SRP host mode program model is described in detail in the
protocol) section.
USB host states
Host port power
On-chip 5 V V
available on the application board, a basic power switch, must be added externally to drive
the 5 V V
application decides to power on V
power bit in the host port control and status register (PPWR bit in OTG_FS_HPRT).
V
The V
operations.
Any unforeseen V
interrupt triggered by the session end detected bit (SEDET bit in OTG_FS_GOTGINT). The
application is then required to remove the V
charge pump overcurrent flag can also be used to prevent electrical damage. Connect the
overcurrent flag output from the charge pump to any GPIO input and configure it to generate
a port interrupt on the active level. The overcurrent ISR must promptly disable the V
generation and clear the port power bit.
BUS
used if 5 V are available on the application board.
DD
BUS
valid
range is between 2 V and 3.6 V.
BUS
input ensures that valid V
line. The external charge pump can be driven by any GPIO output. When the
BUS
OSC_IN
OSC_OUT
STM32F105xx
STM32F107xx
BUS
generation is not supported. For this reason, a charge pump or, if 5 V are
voltage drop below the V
GPIO+IRQ
Doc ID 13902 Rev 9
GPIO
BUS
PA11
PA12
BUS
PA9
BUS
power while the USB session is suspended.
using the chosen GPIO, it must also set the port
levels are supplied by the charge pump during USB
Overcurrent
BUS
EN
BUS
power and clear the port power bit. The
BUS
valid threshold (4.25 V) leads to an OTG
ST20x2
Current limited
power distribution
switch
powered device. A basic power switch can be
V
(1)
DD
(2)
A-device session request
5V Pwr
VBUS
V
DM
DP
SS
ai17117
RM0008
BUS
BUS