nRF52840 SPIM3 and tSPIM,VMO,HS 8 ns vs tSPIM,VMO 59 ns

[denis]

The valid master out time for <= 8 MHz is shown as tSPIM,VMO 59 ns.  The valid master out time for > 8 MHz is shown as  tSPIM,VMO,HS 8 ns.  The latter  tSPIM,VMO,HS could only apply to SPIM3, since that is the only SPIM that can go over 8 MHz.  My question is: does the  tSPIM,VMO,HS of 8 ns apply to SPIM3 no matter the clock frequency?  (It seems odd to me that the master out time for the same SPIM hardware would change all of a sudden when the frequency is changed...)

[Kenneth]

Hi,

The SPIM3 have been completely redesigned compared to SPIM0-2, and in specific they have better control of timing in SPIM3. You are correct in your suspicion that for SPIM3 it's 8ns for all frequencies (The table could be clearer. It is still technically correct since it is a max spec and 8 is < than 59.)

Best regards,
Kenneth