SPI data minimum delay of two frames

[文辉王]

Hi，

I use the MPC5744P SPI module, because I have to make CPHA = 1, so I can not use continuous send mode. I want to know is, if I want to send 32-bit data, how to minimize the delay between two frames of data? What is the shortest delay time?

regards，

Vern

[PetrS]

Hi,

t_ASC, t_CSC and t_DT specify the delay between words

 

Those delays are configured by CTAR register

The shortest delay for each one is 2 protocol clocks (PBRIDGE_CLK), but I think you should use longer time.

BR, Petr

[文辉王]

Hi，

Sorry, I was wrong. I need to use continuous mode with CPHA = 0, or to minimize the delay between two frames of data.

The figure above is mentioned in the manual, but I need to quickly transfer data when CPHA = 0. So I would like to know how to use continuous mode in this case or to minimize the delay between two frames of data.

regards，

Vern