What is the SPI mode of the gyroscope sensor I3G4250D?

[duoc_ngo261]

I use the KIT STM32F411 Discovery

When I choose:

SPI CPOL: Low

SPI CPHA: 1 Edge

It works

But when I choose:

SPI CPOL: High

SPI CPHA: 2 Edge

It does not work

Could you explain why? Thank you!