GPIO as
signmen
t and
s
h
aring
U
M22
7
1
4
4/7
D
ocID030
906 Re
v 2
E1
PC13
JOY_SEL // WAKEUP
-
-
-
F1
PC14-OSC32_IN
PC14-OSC32_IN
-
-
-
G1
PC15-
OSC32_OUT
PC15-OSC32_OUT
-
-
-
B8
PD0
PSRAM_D2
-
-
-
C8
PD1
PSRAM_D3
-
-
-
D8
PD2
SDMMC_1_CMD
-
-
-
E8
PD3
PSRAM_CLK
-
-
-
C7
PD4
PSRAM_NOE
-
-
-
D7
PD5
PSRAM_NWE
-
-
-
E7
PD6
PSRAM_NWAIT
-
-
-
F7
PD7
PSRAM_NE1
-
-
-
K10
PD8
PSRAM_D13
-
-
-
K9
PD9
PSRAM_D14
-
-
-
J10
PD10
PSRAM_D15
-
-
-
J9
PD11
PSRAM_A16
-
-
-
J8
PD12
PSRAM_A17
-
-
-
H8
PD13
PSRAM_A18
-
-
-
H11
PD14
PSRAM_D0
-
-
-
H10
PD15
PSRAM_D1
-
-
-
A4
PE0
PSRAM_NBL0
-
-
-
B4
PE1
PSRAM_NBL1
-
-
-
D3
PE2
SAI1_MCLK_A
-
-
-
D2
PE3
PSRAM_A19
-
-
-
D1
PE4
PSRAM_A20
(NU)
// DCMI_D4
-
-
-
Table 28. 32L4R9IDISCOVERY GPIO assignment and sharing (continued)
Pin
GPIO port
GPIO primary interface
STMod+ interface
PMOD interface
ARDUINO interface