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22
1
VDD_IO
IO Supply Voltage
2
EINT25
Interrupt 25
3
GND
Ground
4
GND
Ground
K3
Pin
Signal
Description
Pin
Signal
Description
1
VDD_IO
IO Supply Voltage
2
EINT26
Interrupt 26
3
GND
Ground
4
GND
Ground
The RST button is a Side Tact Switch. The board adopts MAX811 as the Reset chip.
Pin
Signal
Description
Pin
Signal
Description
1
KEY_RST
Connect to pin3 of MAX811
2
GND
Ground
3
GND
Ground
4
GND
Ground
2.14 Boot select (SW1)
Android210 supports booting from SD Card, USB and NAND Flash. The
CPU will boot in
corresponding way automatically after getting the OM signal set by DIP switch SW1.
Pin
Signal
Description
Pin
Signal
Description
1
VDD_IO
IO Supply Voltage
2
VDD_IO
IO Supply Voltage
3
VDD_IO
IO Supply Voltage
4
VDD_IO
IO Supply Voltage
5
OM5
Mode selection 5
6
OM3
Mode selection 3
7
OM2
Mode selection 2
8
OM1
Mode selection 1
Boot mode
Boot mode
J1
J2
J3
J4
NAND FLASH
1
0
0
0
USB
1
0
0
1
SD card
0
1
1
0
Pin