Display And Input Devices - ST STM3220G-EVAL User Manual

UM1057
2.21

Display and input devices

The 3.2" TFT color LCD connected to FSMC bus and 4 general purpose color LEDs (LD 1,
2, 3, 4) are available as display devices. A touchscreen connected to an I/O expander (U24),
4-direction joystick with selection key, general purpose button (B4), wakeup button (B2) and
tamper detection button (B3) are available as input devices.
Table 15. LCD modules
Pin on
Pin name
CN19
1 CS
2 RS
3 WR/SCL
4 RD
5 RESET
6 PD1
7 PD2
8 PD3
9 PD4
10 PD5
11 PD6
12 PD7
13 PD8
14 PD10
15 PD11
16 PD12
17 PD13
Pin connection
FSMC_NE3 (PG10)
FSMC_A0
FSMC_NWE
FSMC_NOE
RESET#
FSMC_D0
FSMC_D1
FSMC_D2
FSMC_D3
FSMC_D4
FSMC_D5
FSMC_D6
FSMC_D7
FSMC_D8
FSMC_D9
FSMC_D10
FSMC_D11
Doc ID 018499 Rev 2
Hardware layout and configuration
Pin on
Pin name
CN19
18 PD14
19 PD15
20 PD16
21 PD17
22 BL_GND
23 BL_Control
24 VDD
25 VCI
26 GND
27 GND
28 BL_VDD
29 SDO
30 SDI
31 XL
32 XR
33 YD
34 YU
Pin connection
FSMC_D12
FSMC_D13
FSMC_D14
FSMC_D15
GND
+5V
+3V3
+3V3
GND
GND
+5V
NC
NC
I/O expander U24
I/O expander U24
I/O expander U24
I/O expander U24
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