I/O Configuration
PH5 PH5 is connected to BT_HOST_WAKE
PZ7 PZ7 is connected to BT_DEV_WAKE
PI8 LP0_32
6.14
MIPI DSI
SM
LCD
The LCD is not provided with the STM32MP157D-DK1 Discovery kit.
6.14.1 Description
The 40-pin FPC connector CN4 is used to connect a TFT LCD module through the MIPI DSI
SM
interface supported
by the MB1407 board. The touch panel is embedded in the LCD module.
The LCD module is based on a 4" LCD, which supports a resolution of 480 × 800 dots in 16.7 M colors (RGB).
The touch-sensitive panel drive is performed by a self-capacitive controller.
Figure 13 shows the LCD connection to MB1407 and MB1272.
Figure 13. LCD connection to MB1407
DSI
SM
connector (CN4)
MB1407 board
CTP connector (CN1)DSI
SM
connector (CN2)
LCD module
6.14.2 Operating voltage
The LCD module power supply is connected to VDD_3V3.
The touch-panel power supply is connected to VDD_3V3.
The backlight of the LCD is driven by the boost converter circuit on the MB1407 board connected to VDD_3V3.
UM2637
MIPI DSISM LCD
UM2637 - Rev 2
page 22/47
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