Data Sheet

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Figure 5. Basic pin layout for the 40 - pin header 
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Table 6. Default GPIO con fi guration in Mendel ( device names correspond to fi les in the Linux device interface ) 
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For GPIO programming details , see the guide to Connect to the Dev Board Mini I / O pins . 
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Dev Board Mini datasheet v1 . 1 
G650 - 03324 - 01 
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Note: Pins 8 , 10 , 29 , 31 , and 37 should not be used to drive resistive loads directly , due to weak drive strength . 
SoC pin 
Device name 
Default function 
Pin 
Default function 
Device name 
SoC pin 
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+ 3 . 3 V power 
1 
2 
+ 5 V power 
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GPIO52 
i2c - 3 
I2C1 _ SDA 
3 
4 
+ 5 V power 
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GPIO53 
i2c - 3 
I2C1 _ SCL 
5 
6 
Ground 
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GPIO22 
gpio409 
GPIO22 
7 
8 
UART0 _ TX 
ttyS0 
GPIO63 
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Ground 
9 
10 
UART0 _ RX 
ttyS0 
GPIO62 
GPIO9 
gpio396 
GPIO9 
11 
12 
GPIO36 
gpio423 
GPIO36 
GPIO10 
gpio397 
GPIO10 
13 
14 
Ground 
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GPIO11 
pwmchip0 . 2 
PWM _ C 
15 
16 
GPIO0 
gpio387 
GPIO0 
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+ 3 . 3 V power 
17 
18 
GPIO1 
gpio388 
GPIO1 
GPIO4 
spidev0 
SPI _ MO 
19 
20 
Ground 
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GPIO3 
spidev0 
SPI _ MI 
21 
22 
GPIO7 
gpio394 
GPIO7 
GPIO6 
spidev0 
SPI _ CLK 
23 
24 
SPI _ CSB 
spidev0 . 0 
GPIO5 
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Ground 
25 
26 
GPIO8 
gpio395 
GPIO8 
GPIO60 
i2c - 0 
I2C2 _ SDA 
27 
28 
I2C2 _ SCL 
i2c - 0 
GPIO61 
GPIO65 
ttyS1 
UART1 _ TX 
29 
30 
Ground 
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GPIO64 
ttyS1 
UART1 _ RX 
31 
32 
PWM _ A 
pwmchip0 . 0 
GPIO12 
GPIO25 
pwmchip0 . 1 
PWM _ B 
33 
34 
Ground 
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GPIO37 
gpio424 
GPIO37 
35 
36 
GPIO13 
gpio400 
GPIO13 
GPIO45 
gpio432 
GPIO45 
37 
38 
GPIO38 
gpio425 
GPIO38 
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Ground 
39 
40 
GPIO39 
gpio426 
GPIO39 
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