ST EVALSP320SPLC, User Manual, Page: 20 / 36

Connectors UM1509
20/36 Doc ID 022703 Rev 2
5.7 General-purpose ADC connector (CN9)
Figure 12. General-purpose ADC connector (CN9) pinout
5.8 General-purpose GPIO and I
2
C connector (CN10)
Figure 13. General-purpose GPIO and I
2
C connector (CN10) pinout
Table 17. General-purpose ADC connector (CN9) description
Pin Signal Pin Signal Pin Signal Pin Signal
1
ADC VREF
Negative or
GND by JP8
6 GND 11 AIN4 16 GND
2 GND 7 AIN2 12 GND 17 AIN7
3 AIN0 8 GND 13 AIN5 18 GND
4 GND 9 AIN3 14 GND 19
ADC VREF
Positive or
+2.5 V by JP7
5 AIN1 10 GND 15 AIN6 20 +2.5 V
1
2
3 5 7 9
4 6 8 10
11 13 15 17 19
12 14 16 18 20
Table 18. General-purpose GPIO and I
2
C connector (CN10) pinout description
Pin Signal Pin Signal Pin Signal Pin Signal
1 +3.3 V 6
PL_GPIO5
(I2C_SDA)
(1) (2)
1. RC filter (R104 and C80) for the SDA line.
2. R67 and R68 are pull-ups for the SCLK and SDA line.
11 PL_CLK3 16 NC
2 NC 7 PL_GPIO34 12 NC 17 NC
3 NC 8 PL_GPIO63 13 NC 18 +2.5 V
4 GND 9 PL_GPIO67 14 NC 19 +5.0 V
5
PL_GPIO4
(I2C_SCK)
(2)
10 NC 15 NC 20 NC
1
2
3 5 7 9
4 6 8 10
11 13 15 17 19
12 14 16 18 20