LMX2592: registers of LMX2592

Part Number: LMX2592

Let me check the registers of LMX2592.
TICS Pro has registers R68, 69, 70 (fig1).
However, there is no description of registers R68, R69, 70 in the catalog (description up to R64) (fig2).
Will it work properly without setting registers R68, 69, 70?
(It seems that it works normally even if you do not set it)

Akihiko Yokouchi/