Sync Multiple AD9913

Hey all - I have two AD9913 running from the same clock. Need a defined phase shift between them. I assume I can do this by,

1) Program the devices registers as required.

2) Use IO_UPDATE to load both devices at the same time (IO_UPDATE is routed to both devices with zero differential time skew between routes).

Is that correct?

So the IO_UPDATE loads the registers to the counters and I assume that it resets the phase accumulator to zero also so that the phase accumulators of both devices will start counting together from the same known count?

Thanks for the conformation / clarification.

Steve H.