STM32CUBEMX STM32F429ZI , what is correct SPI standard unit . 1. Datasheet SPIx_CR1 register map : HZ unit ex) BR[2:0] Baud Rate Control => PCLK2 90MHZ/16 = 5.625Mhz 2. Below picture STM32CUBEMX Baud Rate unit is Mbit/s.

[csocom]

[csocom]

SPI Baud Rate UNIT

Correct <Mbit/s> unit or <MHZ> unit

[Tesla DeLorean]

How many bits are moved in each clock?

[waclawek.jan]

You can add MBaud to the mix (not an SI unit, though).

JW