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Table 2
Boot Config Select:
Mode
1
2
3
4
TF Card
1
0
0
0
eMMC
1
1
0
1
Download
0
1
1
0
Expansion Connector
T h e p r o d u c t C S 1 2 1 0 2 F 1 7 0 P - C 1 1 1 h a s o n e E x p a n s i o n
Connector, as Figure 12 shows. This connector is labeled as
P28 on the PCB and is connected to CPU GPIO/I2C signals. As
for the definition of every pin, please refer to Table 3.
Figure 12: Expansion Connector
Table 3
GPIO Connector Definition
Pin Number
Definition
Pin 1
INPUT4
Pin 2
INPUT3
Pin 3
INPUT2
