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OLIMEX© 2015
6.12 LCD_CON 40pin connector
The LCD_CON pins are led out on a separate 40pin connecter for the ease of connecting an LCD.
We have tested the ability of the board to interact with such a display. They allow the user to attach
additional hardware, check readings or perform hardware debug.
Important: you need additional 40PIN ribbon cable to connect an Olimex display and the
LCD_CON.
GPIO pin# Signal name Processor pin
1
+5V
3
+3.3V
5
LCD_D16
7
LCD_D18
9
LCD_D20
11
LCD_D22
13
LCD_D8
15
LCD_D10
17
LCD_D12
19
LCD_D14
21
LCD_D0
23
LCD_D2
25
LCD_D4
27
LCD_D6
29
LCD_HSYNC
31
LCD_CLK
33
PB3**
35
LCD_PWR
37
TPX1
39
TPY1
Signals marked with * are multiplexed with either a peripheral device or another connector. Ensure that the multiplexing is handled
properly on software and/or hardware level (else there would probably occur wrong levels, loss of data, etc).
**Pins 33 and 34 are disconnected by default. You need to place the two resistors marked as NA to establish connection to
processor's PB3 and PB4.
LCD_CON connector
-
-
Y12
Y11
Y10
AB12
AB11
Y15
Y14
Y13
AB15
AB14
AB13
AB12
AB9
Y9
B14
C4
Y22
Y23
Page 43 of 56
A20-OLinuXino-MICRO user's manual
GPIO pin#
Signal name
2
GND
4
GND
6
LCD_D17
8
LCD_D19
10
LCD_D21
12
LCD_D23
14
LCD_D9
16
LCD_D11
18
LCD_D13
20
LCD_D15
22
LCD_D1
24
LCD_D3
26
LCD_D5
28
LCD_D7
30
LCD_VSYNC
32
LCD_DE
34
PB4**
36
PB2/PWM0
38
TPX2
40
TPY2
Processor pin
-
-
AA12
AA11
AA10
AC10
AC11
AA15
AA14
AA13
AC15
AC14
AC13
AC12
AC9
AA9
A13
A14*
AA22
AA23
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