Usb Type-C ® Fs; Usb Fs Device; Ucpd; Table 14. Hardware Configuration For The Usb Interface - ST STM32H5 Nucleo-144 User Manual

10.6
USB Type-C
The STM32H5 Nucleo-144 board supports USB full-speed (FS) communication. The USB connector (CN13) is a
®
USB Type-C
The STM32H5 Nucleo-144 board supports the USB Type-C
A green LED (LD7) lights up when V
USB Device.
10.6.1

USB FS device

When a USB Host connection to the USB Type-C
detected, the board starts behaving as a USB Device.
Depending on the powering capability of the USB Host, the board can take power from the V
CN13. In the board schematic diagrams, the corresponding power voltage line is called 5V_UCPD. The STM32H5
Nucleo-144 board supports a 5 V USB voltage, from 4.75 to 5.25 V. On the MCU side, VDD_USB supports the
3V3 voltage only.
the USB FS interface is shown in
Pin
Function
name
PA11 USB_FS_N
PA12 USB_FS_P
1. The default configuration is in bold.
10.6.2

UCPD

The USB Type-C
battery and the Sink mode.
In addition to the DP/DM I/O directly connected to the USB Type-C
UCPD configuration: Configuration channel (UCPD_CC1 and UCPD_CC2), VBUS-SENSE, UCPD dead battery
(UCPD_DBn), and UCPD_FLT (FAULT) feature.
To protect the STM32H5 Nucleo-144 from USB overvoltage, a Programmable Power Supply (PPS) compliant
®
USB Type-C
• 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 only Sink current mode.
• Dead battery I/O: UCPD_DBn: This signal is connected to the associated DBn line of the TCPP01-M12.
The STM USB port protection TCPP01-M12 internally manages the dead battery resistors.
• V fault detection: UCPD_FLT: This signal is provided by the ST USB Type-C
BUS
as fault reporting to the MCU after a bad V
protection is set to 6 V maximum. (R56 is set to 2.4 kΩ to select 6 V maximum).
UM3115 - Rev 1
®
FS
connector.
is powered by a USB Host and the NUCLEO-H563ZI board works as a
BUS
Section 8 provides information on how to use powering options. The hardware configuration for
Table 14
Table 14. Hardware configuration for the USB interface
State
Solder bridge
SB21
OFF
SB22
OFF
®
introduces the USB power-delivery feature. The STM32H5 Nucleo-144 supports the dead
port protection is used: TCPP01‑M12 IEC6100‑4‑2 level 4‑compliant IC:
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connector through the STM USB port protection TCPP01-M12. These lines are used for the
®
Sink mode only.
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connector (CN13) of the STM32H5 Nucleo-144 board is
(1
)
PA11 can be used as GPIO on the ST morpho connector (CN12)
ON
USB function can be used also but performance is degraded due to
track length and impedance mismatch.
PA11 used as USB_FS_N signal
PA12 can be used as GPIO on the ST morpho connector (CN12)
ON
USB function can be used also but performance might be degraded
due to track length and impedance mismatch.
PA12 used as USB_FS_P signal
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connector, five I/Os are also used for
®
current mode. The STM32H5 Nucleo-144
level detection. By design, the STM32H5 Nucleo-144 V
BUS
UM3115
USB Type-C® FS
terminal of
BUS
Description
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port protection. It is used
BUS
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