STMicroelectronics B-G474E-DPOW1, Руководство пользователя

Страница: 42 / 54

SB name
Status
(1) Function Comment
SB16
ON
PB3 connection to T_SWO
Connect PB3 to T_SWO
OFF
Isolate PB3 from T_SWO, PB3 can be used for any
other applications at the CN9 extension connector.
SB17
ON
VREF+ / VREFP connection to VDDA /
AVDD
Connect VREF+ / VREFP to VDDA / AVDD
OFF Isolate VREF+ / VREFP from VDDA / AVDD
SB18
ON
VREF+ / VREFP connection to VREF
PWR
Connect VREF+ / VREFP to VREF PWR
OFF Isolate VREF+ / VREFP from VREF PWR
SB19
ON
PD2 connection to
USBPD_550mA_PROTECT
Connect PD2 to USBPD_550mA_PROTECT
OFF
Isolate PD2 from USBPD_550mA_PROTECT, PD2
can be used for any other applications at the CN9
extension connector.
SB20
ON
PC12 connection to
5V_USBPD_1A_PROTECT
Connect PC12 to 5V_USBPD_1A_PROTECT
OFF
Isolate PC12 from 5V_USBPD_1A_PROTECT, PC12
can be used for any other applications at the CN9
extension connector.
SB21
ON
VDDA / AVDD connection to VDD
Connect VDDA / AVDD to VDD
OFF Isolate VDDA / AVDD from VDD
SB22
ON
VDDA / AVDD connection to 3V3
Connect VDDA / AVDD to 3V3
OFF Isolate VDDA / AVDD from 3V3
SB23
ON
PC11 connection to T_VCP_RX
Connect PC11 to T_VCP_RX
OFF
Isolate PC11 from T_VCP_RX, PC11 can be used for
any other applications at the CN9 extension connector.
SB24
ON
PC10 connection to T_VCP_TX
Connect PC10 to T_VCP_TX
OFF
Isolate PC10 from T_VCP_TX, PC10 can be used for
any other applications at the CN9 extension connector.
SB25
ON
AGND to GND connection near STM32
Connect AGND to GND plan near STM32
OFF Isolate AGND from GND plan near STM32
SB26
ON
PB11 connection to
BUCKBOOST_I_IN_SENSE
Connect PB11 to BUCKBOOST_I_IN_SENSE
OFF
Isolate PB11 from BUCKBOOST_I_IN_SENSE, PB11
can be used for any other applications at the CN8
extension connector.
SB27
ON
PA14 connection to T_SWCLK
Connect PA14 to T_SWCLK
OFF
Isolate PA14 from T_SWCLK, PA14 can be used for
any other applications at the CN9 extension connector.
SB28
ON
PA15 connection to T_JTDI
Connect PA15 to T_JTDI
OFF
Isolate PA15 from T_JTDI, PA15 can be used for any
other applications at the CN9 extension connector.
Remove R89 if necessary.
SB29
ON
PA13 connection to T_SWDIO
Connect PA13 to T_SWDIO
OFF
Isolate PA13 from T_SWDIO, PA13 can be used for
any other applications at the CN9 extension connector.
SB30
ON
3V3 connection to 3V3_OUT
Connect 3V3 to 3V3_OUT on the CN8 extension
connector.
OFF
3V3_OUT is not powered on the CN8 extension
connector.
UM2577
Solder bridges
UM2577 - Rev 2
page 42/54