Hardware layout and configuration
UM1460
22/67
DocID022136 Rev 5
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 17. 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
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