Pin
Signal
17
+3.3V
19
SPI_MOSI / GPIO7
21
SPI_MISO / GPIO8
23
SPI_CLK / GPIO9
25
GND
27
I2C0_DAT / GPIO10
29
GPIO11
31
GPIO12
33
PWM1 / GPIO13
35
I2S_SYNC / GPIO14
37
GPIO15
39
GND
2.3.20
CPLD and BIOS Update (CN19)
Pin
Signal
1
JTAG_TCK
4
1.8V
7
SPI_CLK
10
GND
Chapter 2 – Hardware Information
Pin
18
20
22
24
26
28
30
32
34
36
38
40
Pin
Signal
2
GND
5
JTAG_TMS
8
SPI_MISO
11
SPI_MOSI
Signal
GPIO20
GND
GPIO21
SPI_CS0 / GPIO22
GPIO23
I2C0_CLK / GPIO24
GND
PWM0 / GPIO25
GND
GPIO26
I2S_SDI / GPIO27
I2S_SDO / GPIO28
Pin
Signal
3
JTAG_TDO
6
SPI_CS
9
JTAG_TDI
12
SPI_HOLD
26