6.1 Xplained Pro I2C Address List

The Table 6-2 lists the used I2C addresses on the Xplained Pro platform. Register an I2C address via edbg@atmel.com so that this can be added to the list which will avoid conflicts on the I2C bus. The I2C compatible device adresses in Table 6-2 must be shifted left to form the SLA+W or SLA+R address when transmitted over the I2C compatible interface as show in Table 6-1.
Table 6-1. Format of SLA+W and SLA+R
Bit 7Bit 6Bit 5Bit 4Bit 3Bit 2Bit 1Bit 0
I2C address e.g. 0x4ARead/Write
Table 6-2. Xplained Pro I2C Address List
I2C addressProducts using this addressConfiguration option
0x28All Xplained Pro MCU boards (I2C interface to the embedded debugger)Cannot be changed permanently so each reboot of the EDBG resets this to the default address. Configuration can be done via Atmel Data Visualizer.
0x29BNO055 Xplained ProLast bit is configurable by pull-up/down.
0x4AmaXTouch Xplained Pro (mXT112S touchscreen controller)Not configurable
0x4BATMEGA256RFR2 Xplained Pro (temp. sensor)Last three bits can be configured by soldering. This will also change the last three bits of the EEPROM address on this board because both are within the same device.
0x4FI/O1 Xplained Pro (temp. sensor)Last three bits can be configured by soldering. This will also change the last three bits of the EEPROM address on this board because both are within the same device.
0x50SAM L22 Xplained Pro (ATAES132A crypto device)Default device address. Can be changed in internal config register.
0x53ATMEGA256RFR2 Xplained Pro (EEPROM)Last three bits can be configured by soldering. This will also change the last three bits of the temp sensor address on this board because both are within the same device.
0x57I/O1 Xplained Pro (EEPROM)Last three bits can be configured by soldering. This will also change the last three bits of the temp sensor address on this board because both are within the same device.
0x70SHTC1 Xplained ProNot configurable