ST STM32H5 User Manual

11 Solder bridges and jumpers
SBxx can be found on the top layer and SB1xx can be found on the bottom layer of the STM32H5 Nucleo-144
board.
Table 17. Solder bridge and jumper configuration
Solder Bridge
State
(1)
Description
SB1 (3V3)
ON Output of voltage regulator ST1L05CPU33R is connected to 3V3.
OFF Output of voltage regulator ST1L05CPU33R is not connected to 3V3.
SB2 (1V8)
ON Output of voltage regulator ST1L05BPUR is connected to 1V8.
OFF Output of voltage regulator ST1L05BPUR is not connected to 1V8.
SB3, SB4
(External 25 MHz
crystal)
ON, ON PH0/PF0 and PH1/PF1 are connected to the external 25 MHz crystal X3.
OFF,
OFF
PH0/PF0 and PH1/PF1 are not connected to the external 25 MHz crystal X3.
SB5, SB6
(OVP protections on
CC lines)
ON, ON The overvoltage protections on CC1 and CC2 lines are bypassed.
OFF,
OFF
The overvoltage protections on CC1 and CC2 lines are connected.
SB7
(OVP protection on
V
BUS
line)
ON
The overvoltage protection on the V
BUS
line is bypassed.
OFF
The overvoltage protection on the V
BUS
line is connected.
SB8, SB9, SB64,
SB68, SB78
(trace signals)
ON, ON,
ON, ON,
ON
PE2, PE3, PE4, PE5, and PE6 are used as GPIOs on the ST morpho connector (CN11) or
on the Zio connector (CN9).
OFF,
OFF,
OFF,
OFF,
OFF
PE2, PE3, PE4, PE5, and PE6 are used as trace signals and are connected to the MIPI-20
connector (CN5). SB70 and SB71 must be OFF.
SB10 (PB15)
ON
PB15 can be used as I2S_2_SD or a GPIO signal on the Zio connector (pin 3 of CN7) if not
used on the ST morpho.
OFF PB15 is used as RMII_TXD1 signal.
SB11
ON The input of the ST1L05BPUR LDO is connected to 3V3.
OFF The input of the ST1L05BPUR LDO is not connected to 3V3.
SB12 (PB13)
ON
PB13 can be used as I2S_2_CK or GPIO signal on the Zio connector (CN7/pin5) if not
used on the ST morpho.
OFF PB13 is used as the UCPD_CC1 signal.
SB13 (PD8)
ON PD8 is connected to the ST morpho (CN12/pin12).
OFF PD8 is not connected to the ST morpho (CN12/pin12).
SB14, SB63,
SB15, SB40
(PB6, PB7)
ON, ON,
OFF,
OFF
LPUART1 is connected to ARDUINO
®
D0 and D1 (default).
OFF,
OFF
ON, ON
LPUART1 connected to Virtual COM port (VCP).
SB16, SB25
ON, OFF IOREF is connected to VDD (default).
OFF, ON IOREF is connected to 3V3.
SB17 (PB5)
ON PB5 (SPI1_MOSI/I2S_3_MCK) is connected to the ST Zio connector (pin13 of CN7).
OFF PB5 (SPI1_MOSI/I2S_3_MCK) is not connected to the ST Zio connector (pin13 of CN7).
UM3115
Solder bridges and jumpers
UM3115 - Rev 2
page 24/44

ST STM32H5 Specifications

General

Brand	ST
Model	STM32H5
Category	Motherboard
Language	English