[time-nuts] Of rubidium life and piggy-bank anemia....

Poul-Henning Kamp phk at phk.freebsd.dk
Sat Dec 1 16:45:59 EST 2007

In message <4751D4F9.4020207 at xtra.co.nz>, Bruce Griffiths writes:
>Poul-Henning Kamp wrote:

>The point is that actually using latches in this way is considered poor
>design practice when crossing clock domains.

The latches do NOT span clock domains, they are in the same domain
as the counter.

The signals that make captures the counter value in the latch is
synchronized to the global clock using 3 D flip-flops.

Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.

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