OLIMEX© 2015
MOD-IO2 user's manual
CHAPTER 5 CONNECTORS AND PINOUT
5. Introduction to the chapter
In this chapter are presented the connectors that can be found on the board all together with their
pinout and notes about them. Jumpers functions are described. Notes and info on specific
peripherals are presented. Notes regarding the interfaces are given.
5.1 ICSP
The board can be programmed and debugged from the 6-pin ICSP. Below is the table of the JTAG.
This interface can be used with the Olimex's PIC-KIT3 debuggers.
ICSP
Pin #
Signal
Name
Pin #
Signal Name
1
MCLR
4
GPIO0_ICSPDAT
2
+3.3V
5
GPIO0_ICSPCLK
3
GND
6
Not connected
5.2 UEXT modules
MOD-IO2 board has two UEXT connectors (male and female) and can interface Olimex's UEXT
boards. For more information on UEXT please visit:
https://www.olimex.com/Products/Modules/UEXT/
5.2.1 Female connector
The female connector is used either to connect to a board directly (without using the female-female
cable) or to connect the module to another MOD-IO2 – to create a stackable module that can be
addressed via the I2C. Remember to change the I2C address of each board when using multiple
boards. By default the I2C address is 0x21.
Female UEXT
Pin #
Signal name
Pin #
Signal name
1
+3.3V
6
SDA
2
GND
7
Not connected
3
Not connected
8
Not connected
4
Not connected
9
Not connected
5
SCL
10
Not connected
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