SPI Noise

[AlTe_4253701]

I am using SPI 8 bits Iand I see some wrong values in the scope

First Byte : 0

Second Byte: 0

Third Byte : 0x81

Why in first and second byte I have an error as you can see in SCR02 , this represent MOSI and CLK

SCO1 CS and CLOCK

Regards

Albert