MKM14Z64ACHH5(LGA-44) Which pin should I connect to I2C slave?

[bon]

Dear customer support,

I am planning to use a I2C slave(SHT31 sensirion attached datacheet) with  MKM14Z64ACHH5(LGA-44).

I have a question about

Which pin should I connect to I2C slave?

I am confused by reading KM Family Reference Manual_MKMxxZxxACxx5RM.

This reference manual says MKM14Z64ACHH5 has one I2C communication interface on page 46 Table 2-2.

But,

The Datasheet(Table 8.2 KM Signal Multiplexing and Pin Assignments) says MKM14Z64ACHH5(LGA-44) has two I2C interfaces below.

Pin No.26 I2C1_SDA

Pin No.27 I2C1_SCL

Pin No.38 I2C0_SCL

Pin No.39 I2C0_SCL

[Robin_Shen]

The MKM14Z64ACHH5 has two I2C communication interface. But the I2C1 pins(26 27) are default as XTAL and EXTAL function. If you need to use external reference clock or crystal, then you should use I2C0 module.

The I2C0 module(pin 38 39) is recommanded, since pin 32 and 33 is default as SWD interface that you may need to use it.

Best Regards,

Robin

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