ST STM3221G-EVAL, User Manual

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UM1065 Hardware layout and configuration
Doc ID 018640 Rev 4 21/65
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 16. LCD modules
Pin on
CN19
Pin name Pin connection
Pin on
CN19
Pin name Pin connection
1 CS FSMC_NE3 (PG10) 18 PD14 FSMC_D12
2 RS FSMC_A0 19 PD15 FSMC_D13
3 WR/SCL FSMC_NWE 20 PD16 FSMC_D14
4 RD FSMC_NOE 21 PD17 FSMC_D15
5 RESET RESET# 22 BL_GND GND
6 PD1 FSMC_D0 23 BL_Control +5V
7 PD2 FSMC_D1 24 VDD +3V3
8 PD3 FSMC_D2 25 VCI +3V3
9 PD4 FSMC_D3 26 GND GND
10 PD5 FSMC_D4 27 GND GND
11 PD6 FSMC_D5 28 BL_VDD +5V
12 PD7 FSMC_D6 29 SDO NC
13 PD8 FSMC_D7 30 SDI NC
14 PD10 FSMC_D8 31 XL I/O expander U24
15 PD11 FSMC_D9 32 XR I/O expander U24
16 PD12 FSMC_D10 33 YD I/O expander U24
17 PD13 FSMC_D11 34 YU I/O expander U24