Tft Lcd (Rgb And Fmc Mode) Connector; Table 21. Cn20 Tft Lcd Module Connector - ST STM32L4R9I-EVAL User Manual

UM2248
6.30

TFT LCD (RGB and FMC mode) connector

The CN20 50-pin 1.27 mm-pitch female connector is designed to connect TFT LCD
daughterboard, supporting RGB and FMC modes. MB1315 daughterboard is available to
mount on the STM32L4R9I-EVAL board with RGB mode.
CN20 and STM32L4R9AII6 terminals.
.
Pin RGB mode
No. description
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
41
43
45
47
49

Table 21. CN20 TFT LCD module connector

FMC mode
description
GND GND
R0 -
R1 RS(A19)
R2 D12
R3 D13
R4 D14
R5 D15
R6 -
R7 -
GND GND
B0 -
B1 -
B2 D0
B3 D1
B4 D2
B5 D3
B6 D4
B7 D5
GND GND
INT INT
- RS
BL_CTRL BL_CTRL
BL+5 V BL+5 V
BLGND BLGND
BLGND BLGND
Pin Pin
connection No. description
- 2
PE2 4
PE3 6
PE15 8
PD8 10
PD9 12
PD10 14
PD11 16
PD12 18
- 20
PE4 22
PF13 24
PD14 26
PD15 28
PD0 30
PD1 32
PE7 34
PE8 36
- 38
PC2 40
PE2 42
PA5 44
- 46
- 48
- 50
UM2248 Rev 4
Hardware layout and configuration
Table 21 shows the assignment of
RGB mode FMC mode
description
GND GND
G0 -
G1 -
G2 D6
G3 D7
G4 D8
G5 D9
G6 D10
G7 D11
GND GND
DE TE
LCD_DSIP -
HSYNC -
VSYNC -
GND GND
PCLK -
GND GND
RST# RST#
SDA SDA
SCL SCL
- NOE
- NWE
- CS
VDD VDD
+3.3 V +3.3 V
Pin
connection
-
PF14
PF15
PE9
PE10
PE11
PE12
PE13
PE14
-
PF11
MFX_
GPIO11
PE0
PE1
-
PD3
-
MFX_
GPIO12
PH5
PH4
PD4
PD5
PG12
-
-
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