Table 3.
X-NUCLEO-GFX01M2 I/O configuration of the LCD
Pin number Pin name
Signal name
STM32 GPIO
Function
1
LED_K4
-
-
Display backlight LED4 cathode
2
IM0
GND
-
System interface selection: 4-line 8-bit data SPI mode
3
IM1
3V3
-
4
IM2
3V3
-
5
IM3
3V3
-
6
RESET
DISP_NRESET
PA1
PC1
PA6
Reset active low
7 - 28
-
-
-
Not connected
29
SDO
SPIA_MISO
PA6
PB14
SPI master in/slave out
30
SDI
SPIA_MOSI
PA7
PB15
SPI master out/slave in
31
RD
-
-
Not connected
32
RS/SCL
SPIA_SCK
PA5
PB13
SPI serial clock
33
WR
SPIA_DCX
PB10
PB14
PA8
SPI write enable
34
CS
SPIA_NCS
PA9
PC2
SPI chip select active high
35
FMARK
DISP_TE
PA0
PC0
PA4
Tearing effect output pin to synchronize MCU on frame writing
36
VCC
3V3
-
3.3 V power supply
37
GND
GND
-
Ground
38
LED_A
3V3
-
Display backlight LED common anode
39
LED_K1
-
-
Display backlight LED1 cathode
40
LED_K2
-
-
Display backlight LED2 cathode
41
LED_K3
-
-
Display backlight LED3 cathode
42 - 45
-
-
-
Not connected
1. STM32 GPIO for
,
,
,
,
,
,
,
,
2. STM32 GPIO for
.
3. STM32 GPIO for
4. STM32 GPIO for
,
5. STM32 for
and
6. GPIO for
7. GPIO for
.
8. GPIO for
UM2750
SPI QVGA TFT LCD (LCD1)
UM2750
-
Rev 2
page 10/31