MKE04Z128VLK4 SPI Fan-out

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MKE04Z128VLK4 SPI Fan-out

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bon
Contributor I

What is the fanout of MKE04Z128VLK4 SPI port?

How many slaves can be connected to the SPI port?

I would like to connect 8 slaves to the SPI port.

Best regards,

#MKE04Z128VLK4

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bon
Contributor I

Dear Daniel,

Thank you for your reply.

I would like to connect 8 slaves to one SPI port.

I'm worried about fan out by connecting 8 slaves to one port.

A circuit diagram is attached.

The CS pin is simulated with GPIO.

Best regards,

Ryutaro

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danielchen
NXP TechSupport
NXP TechSupport

It is OK to connect 8 slaves to one SPI port.

Regards

Daniel

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danielchen
NXP TechSupport
NXP TechSupport

Hi Ryutaro:

MKE04Z128VLK4 contains two SPI modules that support 8-bit data length.

For the limited pin source, only can connect 2 slaves.  If you need to support 8 slaves, you need to use GPIO to simulate CS.

Regards

Daniel

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