emSTAMP Helium (Rev3)
12/23
5.5.2
EDT display connector pinout
Type: Hirose FH12-40
EDT Pin Helium Pin Signal
1
40
RESET#
2
39
RESET#
1
3
38
BLUE5
4
37
BLUE4
5
36
BLUE3
6
35
BLUE2
7
34
BLUE1
8
33
BLUE0
9
32
GND
10
31
GREEN5
11
30
GREEN4
12
29
GREEN3
13
28
GREEN2
14
27
GREEN1
15
26
GREEN0
16
25
GND
17
24
RED5
18
23
RED4
19
22
RED3
20
21
RED2
EDT Pin Helium Pin Signal
21
20
RED1
22
19
RED0
23
18
GND
24
17
LCD_PCLK_OUT
25
16
GPIO_WAKE#
26
15
LCD_HSYNC
27
14
LCD_VSYNC
28
13
LCD_DE
29
12
LCD_BL_EN
30
11
LCD_VCC
31
10
GND
32
9
GND
33
8
LCD_VCC
34
7
LCD_VCC
35
6
IRQ_TOUCH2#
36
5
LCD_BL_CTRL
37
4
SCL_LCD
38
3
n/c
39
2
SDA_LCD
40
1
n/c
5.6
Ethernet
The emSTAMP-Helium module provides an Ethernet interface with up to 100BASE-TX full
duplex. The PHY is integrated on the CPU module so that an Ethernet Jack (with integrated
magnetics) may be directly connected to the modules Ethernet pins.
The Ethernet signal lines are connected to the mounting holes of the Helium PCB edges. An
appropriate 1:1 transformer with a 100nF capacitor to GND and a 3.3V supply at each center
tap pin must be added externally.
Link or traffic indication signals for additional LEDs are not provided.
1
This pin can also be connected to GND by
assembly variation
