Usb Type-C ® Fs Port; Description; Operating Voltage; Usb Fs Device - ST STM32L562E-DK User Manual

6.8
USB Type-C
6.8.1

Description

The STM32L562E-DK Discovery kit supports USB full-speed (FS) communication. The USB connector (CN15) is
a USB Type-C
The STM32L562E-DK Discovery kit supports USB Type-C
A green LED (LD2) lights up when V
works as a USB device.
6.8.2

Operating voltage

The STM32L562E-DK Discovery kit supports USB voltage, from 4.75 to 5.25 V.
MCU VDD_USB only supports the 3.3 V voltage.
6.8.3

USB FS device

When a USB Host connection to the USB Type-C
STM32L562E-DK Discovery kit starts behaving as a USB Device. Depending on the powering capability of the
USB Host, the board can take power from the V
corresponding power voltage line is called 5V_UCPD.
Section 6.3 Power supply
Table 15 describes the hardware configuration for the USB interface.
I/O
PA11
PA12
6.8.4

UCPD

®
USB Type-C
battery and the SINK mode.
In addition to the DP/DM I/Os directly connected to the USB Type-C
configuration: Configuration Channel (CCx), VBUS-SENSE, UCPD dead battery (DBn), and UCPD_FAULT (FLT)
feature.
To protect STM32L562E-DK from USB overvoltage, a USB Type-C
compliant with IEC6100-4-2 level 4.
• Configuration Channel I/O: UCPD_CCx: These signals are connected to the associated CCx line of the
USB Type-C
configuration channel lines (CCx) to select the USB Type-C
supports SINK current mode.
• Dead battery I/O: UCPD_DBn: This signal is connected to the associated DBn line of the port protection.
The STMicroelectronics USB port protection internally manages the dead battery resistors.
• V fault detection: UCPD_FLT: This signal is provided by the STMicroelectronics Type-C port protection.
BUS
It is used as a fault reporting to the MCU after a bad V
and the STM32L562E-DK V
UM2617 - Rev 7
®
FS port
®
connector.
is powered by a USB host when the STM32L562E-DK Discovery kit
BUS
provides information on how to use the powering option.
Table 15. I/O configuration for the USB interface
PA11 used as USB_FS_N diff pair interface
PA12 used as USB_FS_P diff pair interface
introduces the USB power-delivery feature. The STM32L562E-DK Discovery kit supports the dead
®
connector through the STMicroelectronics USB port protection. These lines are used for the
protection is set to 6 V maximum.
BUS
®
sink mode only.
®
connector (CN15) of STM32L562E-DK is detected, the
terminal of CN15. In the board schematic diagrams, the
BUS
Configuration
®
connector, five I/Os are also used for UCPD
®
PPS-compliant port protection is used, IC
®
current mode. STM32L562E-DK only
level detection. By design, R45 is set to 2.7 kΩ
BUS
UM2617
USB Type-C® FS port
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