User`s manual

SD/MMC1 connector

Pin # Connector signal name Wire name (processor pin)

1 DAT2/RES SD0-D2 (K19)

2 CD/DAT3/CS SD0-D3 (K20)

3 CMD/DI SD0-CMD (L19)

4 VDD -

5 CLK/SCLK SD0-CLK(L20)

6 VSS2 -

7 DAT0/DO SD0-D0(M19)

8 DAT1/RES SD0-D1(M20)

Additionally, there are the WP and CP switches that are responsible, respectively, for sensing

whether the card is locked for reading and whether there is a card inserted.

6.3 PWR jack

The power jack used is the typical DC barrel jack one used by Olimex (2.1×6.3×9.2mm) in most of

our products. More information about the exact component might be found here:

https://www.olimex.com/wiki/PWRJACK

You should provide 5 volts direct current and the required current may vary depending on the

peripherals connected to the board. The power supply you use should be capable of providing at

least 1A of current.

Pin # Signal name

1 Power input

2 GND

More info about the power supply can be found in chapter 5 of this manual.

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