• V
BUS
fault detection: UCPD_FLT: This signal is provided by the ST USB Type-C
®
port protection. It is
used as fault reporting to MCU after a bad V
BUS
level detection. By design, the STM32 Nucleo-144 V
BUS
protection is set to 6 V maximum. (R41 is set to 2K7 to select 6 V maximum).
For more detail about UCPD with the TCPP01-M12 USB Type-C
®
port protection for sink application, refer to the
application note USB Type-C Power Delivery using STM32 MCUs and MPUs (AN5225) related to USB Type-C
®
power delivery using STM32xx series.
Table 13 describes the hardware configuration for the UCPD feature.
Table 13. Hardware configuration for the UCPD feature
I/O
Solder bridge Setting
Configuration
(1)
PA15
SB42
OFF
PA15 Not connected to USB Type-C
®
port protection and used as
T_JTDI (optional configuration with SB39)
ON
PA15 connected to USB Type-C
®
port protection and NOT used as
T_JTDI
SB8
OFF
PA15 connected to USB Type-C
®
port protection and used as
UCPD_CC1
ON
PA15 directly connected to USB Type-C
®
connector. USB Type-C
®
port
protection is bypassed.
PB15 SB9
OFF
PB15 connected to USB Type-C
®
port protection and used as
UCPD_CC2
ON
PB15 directly connected to USB Type-C
®
connector. USB Type-C
®
port protection is bypassed.
PC2 SB6
ON PC2 used as VBUS_SENSE
OFF PC2 NOT used for UCPD. Can be used on the Zio connector (SB53)
PB5
SB46
ON
IO UCPD_DBn connected to USB Type-C
®
port protection and
used as a dead battery feature
OFF
PB5 not used for UCPD_DBn can be used as SAI or SPI on ZIO
connector
JP8
ON
UCPD_DBCC1 connected to GND (only for internal UCPD debug
purpose)
OFF
UCPD_DBCC1 not connected to GND, can be used for Zio
connector
PB14
SB45
ON
IO UCPD_FLT connected to USB Type-C
®
port protection and used
as over‑voltage fault reporting to MCU
OFF
PB14 not used for UCPD_FLT can be used on the ST morpho
connector
JP7
ON
UCPD_DBCC2 connected to GND (only for internal UCPD debug
purpose)
OFF
UCPD_DBCC2 not connected to GND, can be used for the ST
morpho connector
1. The default configuration is shown in bold
UM2861
USB Type-C® FS/HS
UM2861 - Rev 5
page 30/49