Pin Function Multiplexing Control (Detailed); Table 4 Pin Function Multiplexing Control - Intel Edison Kit for Arduino Hardware Manual

2.3

Pin function multiplexing control (detailed)

Table 4 lists the GPIO outputs dedicated to pin multiplexing control. Different functions may be selected for
specific shield I/O pins by setting these GPIO outputs to 0/1 (low/high). Additionally, some of the SoC GPIO pins
also feature internal mux options. These are listed as "SoC Pin Modes".
Currently, these are configured by setting the required pin mode for the corresponding SoC GPIO pin N, via
/sys/kernel/debug/gpio_debug/gpioN/current_pinmux, to "mode[0/1/2/...]"
Table 4 Pin function multiplexing control
Shiel
d pin
Pin Linux
-
IO0
-
IO1
-
IO2
-
IO3
-
IO4
-
IO5
-
IO6
-
IO7
-
IO8
-
IO9
U34_ IO1.7 263
IO10
U16_ IO1.0 240
IO11 U34_ IO1.6 262
U16_ IO1.1 241
IO12 U16_ IO1.2 242
IO13 U16_ IO1.3 243
IO14 U17_ IO0.0 200
IO15 U17_ IO0.1 201
IO16 U17_ IO0.2 202
IO17 U17_ IO0.3 203
IO18 U17_ IO0.4 204
U17_ IO0.5 205
IO19
1. These pins are pulled up inputs at power-on. This effectively enables the mux switches (i.e. mux function 1 is selected).
Intel® Edison Kit for Arduino*
Hardware Guide
10
GPIO pin mux
0 (low) 1 (high)
PWM4_OUT
GP41
SSP5_FS_1
GP41 SSP5_FS_1
PWM5_OUT GP43
SSP5_TXD
GP43 SSP5_TXD
SSP5_RXD
GP42
GP40 SSP5_CLK
GP44 A0
GP45 A1
GP46 A2
GP47 A3
A4
GP14
I2C6_SCL
GP165 A5
I2C6_SDA
Power-on default Pin
GP130
GP131
GP128
GP12
GP129
GP13
GP182
GP48
GP49
GP183
Pulled down input GP41
1
Pulled up input GP111
Pulled down input GP43
GP115
Pulled up input 1
1
Pulled up input GP42
GP114
1
Pulled up input GP40
GP109
Pulled up input 1 GP44
Pulled up input 1 GP45
Pulled up input 1 GP46
Pulled up input 1 GP47
1
Pulled up input GP14
GP28
1
Pulled up input GP165
GP27
Document Number: 331191-004
Shield pin configuration
SoC pin modes
Linux 0 1
130 GPIO UART
131 GPIO UART
128 GPIO UART
12 GPIO PWM
129 GPIO UART
13 GPIO PWM
182 GPIO PWM
48 GPIO
49 GPIO
183 GPIO PWM
41 GPIO I2S
111 GPIO SPI
43 GPIO I2S
115 GPIO SPI
42 GPIO I2S
114 GPIO SPI
40 GPIO I2S
109 GPIO SPI
44 GPIO
45 GPIO
46 GPIO
47 GPIO
14 GPIO I2C-6 I2C-8
28 GPIO
165 GPIO I2C-6 I2C-8
27 GPIO
December 2014
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