User Guide

158
7 GPIO4 Input/output. Or provides a master clock output
(GPCLK0) to external circuits.
8 GPIO14 Input/output. Or UART transmit pin (UART_TXD).
10 GPIO15 Input/output. Or UART receive pin (UART_RXD).
11 GPIO17 Input/output.
12 GPIO18 Input/output.
13 GPIO27 Input/output.
15 GPIO22 Input/output.
16 GPIO23 Input/output.
18 GPIO24 Input/output.
19 GPIO10 Input/output. Or SPI master-output wire (SPI_MOSI).
21 GPIO9 Input/output. Or SPI master-input wire (SPI_MISO).
22 GPIO25 Input/output.
23 GPIO11 Input/output. Or SPI clock wire (SPI_SCLK).
24 GPIO8 Input/output. Or SPI device select 0 (SPI_CE0).
26 GPIO7 Input/output. Or SPI device select 1 (SPI_CE1).
27 ID_SD Reserved.
28 ID_SC Reserved.
29 GPIO5 Input/output.
31 GPIO6 Input/output.
32 GPIO12 Input/output.
33 GPIO13 Input/output.
35 GPIO19 Input/output.
36 GPIO16 Input/output.
37 GPIO26 Input/output.
38 GPIO20 Input/output.
Pin # Name Description