UM
227
1
Sol
d
er bridges
DocID030
906 Re
v 2
51
/78
SB5 (RESERVED)
ON
Reserved, do not modify (PSRAM)
SB14 (RESERVED)
ON
Reserved, do not modify (STLINK)
SB9, SB10, SB11, SB12
(RESERVED)
ON
Reserved, do not modify (display)
SB15 (RESERVED)
ON
Reserved, (USB OTG FS)
SB30 (RESERVED)
ON
Reserved, (Audio Codec VL)
SB29 (RESERVED)
ON
Reserved, (Audio Codec VD)
SB31 (RESERVED)
ON
Reserved, do not modify (MFX, IDD_VDD_MCU)
SB22 (RESERVED)
ON
Reserved, do not modify (STMod+/PMOD)
SB26 (RESERVED)
ON
Reserved, (OCTOSPI Flash)
SB37 (RESERVED)
ON
Reserved, (EXT_I2C)
SB28 (RESERVED)
OFF
Reserved, (MCO to HSE input)
SB38 (RESERVED)
ON
Reserved, (for U5 PSRAM)
SB39 (RESERVED)
OFF
Reserved, (for U6 PSRAM)
Table 30. 32L4R9IDISCOVERY solder bridges (continued)
Solder bridges
State
Description
