Can not write NRF_SPIM0-IFTIMING.RXDELAY

Question

Hi 
 
 Default value of NRF_SPIM0->IFTIMING.RXDELAY = 02 based on the datasheet, but it always shows 0x00 on debugger and I can not rewrite it. 
 Has anyone entered the same situation? or Does anyone know why? 
 
 Thank you! 
 Viet

Viet.N · Accepted Answer

My bad. I have just found why. Not supported: > 8 Mbps data rate, CSNPOL register, DCX functionality, IFTIMING.x registers , hardware CSN control (PSEL.CSN), stalling mechanism during AHB bus contention 
 
 BR, 
 Viet

Can not write NRF_SPIM0->IFTIMING.RXDELAY