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USB2.0 Header (1x4-pin / 2x4-pin)
This mainboard contains
Four 1x4-pin onboard header (2.00mm pitch) that can be used to connect to
four external USB 2.0 devices.
One 2x4-pin onboard header (2.00mm pitch) that can be used to connect to two
external USB 2.0 devices.
GPIO Header
There is a GPIO (General-purpose input/output) header (2.00mm pitch) on the
motherboard. It can connect a variety of simple one- or two-wire devices.
SPI Header
The SPI header (1.27mm pitch) is for SPI signal interface.
Pin
Definition
1
VDD
2
DATA-
3
DATA+
4
GND
Pin
Definition
Pin
Definition
1
VDD
2
GND
3
DATA-
4
DATA+
5
DATA+
6
DATA-
7
GND
8
VDD
Pin
Definition
Pin
Definition
1
GPIO1
2
GPIO2
3
GPIO3
4
GPIO4
5
GPIO5
6
GPIO6
7
GPIO7
8
GPIO8
9
VCC (+3.3V_ALW)
10
GND
Pin
Definition
Pin
Definition
1
CS
2
VDD
3
SO
4
SOLD
5
WP
6
CLK
7
VSS
8
SI
1
2
9
10
USB2_P6_P7
USB2-A
1
2
7
8
USB2-B
USB2-C
USB2-D
8
7
2
1
4
1
Note: +3.3V_ALW means +3.3V Standby Power.
