UM
227
1
G
PIO a
s
si
g
n
ment
a
nd
sh
aring
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A13
PH14
DSI_SPI_USART_CS
(NU)
-
-
-
B12
PH15
-
-
-
ARD_D8
A12
PI0
-
-
-
ARD_D10 (SPI2_NSS_TIM5_CH4)
B11
PI1
MFX_INT_IN
-
-
-
B10
PI2
-
STMod+_SPI2_MISOs
-
-
C10
PI3
-
STMod+_SPI2_MOSIs
-
-
D10
PI4
DCMI_D5
-
-
-
E10
PI5
DCMI_VSYNC/RDY
-
-
-
B9
PI6
OCTOSPIM_P2_CLK
-
-
-
B2
PI7
DCMI_D7
STMod+_RST
PMOD_RST
-
B1
PI9
OCTOSPIM_P2_IO2
-
-
-
A1
PI10
OCTOSPIM_P2_IO1
-
-
-
C3
PI11
OCTOSPIM_P2_IO0
-
-
-
Legend:
or
= Indicate shared or exclusive functions or interfaces on a GPIO port
(NU) = Function mode which is not usable by default
// = Highlights two exclusive functions available for one interface
(xxx) = Name of the STM32L4R9AI GPIO Alternate function used on this interface
Table 28. 32L4R9IDISCOVERY GPIO assignment and sharing (continued)
Pin
GPIO port
GPIO primary interface
STMod+ interface
PMOD interface
ARDUINO interface
