7.29
TFT LCD
7.29.1
Description
The CN23 34
‑
pin 2.54 mm pitch female connector is designed to connect the MB989 TFT LCD daughterboard
supporting the FMC interface to the MB1550 mother board. The LCD daughterboard is composed of the TFT LCD
daughterboard supporting a resolution of 240 x 320 dots 262K colors and a touch-panel feature driven by MFX in
U15 position.
7.29.2
Operating voltage
The design of the MB989 LCD daughterboard is compatible with a voltage range from 1.65 to 3.3 V. So the LCD
is fully compatible with the 1.8 V MCU low voltage.
7.29.3
LCD interface
describes the hardware configuration for the LCD and CTP interface.
Table 54.
Hardware I/O configuration for the LCD and CTP interface
I/O
Hardware
Setting
Configuration
PG12
R187
ON
PG12 is used as FMC_NE4_LCD_CSn and connected to LCD
PD5
R210
ON
PD5 is used as FMC_NWE and connected to SRAM and LCD
PD4
R216
ON
PD4 is used as FMC_NOE and connected to SRAM and LCD
PE6
R198
ON
PE6 is used as FMC_A22_LCD_RS and connected to LCD
PD14
R207
ON
PD14 is used as FMC_D0 and connected to SRAM and LCD
PD15
R213
ON
PD15 is used as FMC_D1 and connected to SRAM and LCD
PD0
R228
ON
PD0 is used as FMC_D2 and connected to SRAM and LCD
PD1
R224
ON
PD1 is used as FMC_D3 and connected to SRAM and LCD
PE7
R200
ON
PE7 is used as FMC_D4 and connected to SRAM and LCD
PE8
R197
ON
PE8 is used as FMC_D5 and connected to SRAM and LCD
PE9
R193
ON
PE9 is used as FMC_D6 and connected to SRAM and LCD
PE10
R188
ON
PE10 is used as FMC_D7 and connected to SRAM and LCD
PE11
R185
ON
PE11 is used as FMC_D8 and connected to SRAM and LCD
PE12
R182
ON
PE12 is used as FMC_D9 and connected to SRAM and LCD
PE13
R180
ON
PE13 is used as FMC_D10 and connected to SRAM and LCD
PE14
R175
ON
PE14 is used as FMC_D11 and connected to SRAM and LCD
PE15
R183
ON
PE15 is used as FMC_D12 and connected to SRAM and LCD
PD8
R186
ON
PD8 is used as FMC_D13 and connected to SRAM and LCD
PD9
R190
ON
PD9 is used as FMC_D14 and connected to SRAM and LCD
PD10
R192
ON
PD10 is used as FMC_D15 and connected to SRAM and LCD
PA8
-
ON
PA8 is used as LCD_BL_CTRL.
NRST
R120
ON
MCU NRST direct connection to the CTP driver.
PG15
SB35
ON
PG15 is used as LCD_CTP_INT for the CTP driver.
PB11
SB49
ON
PB11 is used as I2C2_SDA to interface the audio codec, MFX, UCPD,
CTP, camera, STMod+, and optionally sensors like the 3D accelerometer
and the 3G gyroscope but also the I
2
C EEPROM and the external I
2
C
connector
STM32U575I-EV
TFT LCD
UM2854
-
Rev 1
page 68/105