[time-nuts] Rom Expansion for HP5370B
Poul-Henning Kamp
phk at phk.freebsd.dk
Mon Feb 21 07:25:25 UTC 2011
In message <4D61DE84.3050403 at xtra.co.nz>, Bruce Griffiths writes:
>Poul-Henning Kamp wrote:
>> In message<466FDFC184A3469EAC08EEE5EE36CDBE at hm.clpa.com>, "Bob Camp" writes:
>>
>>
>>> Is the CPU strictly an I/O machine or does it do any of the timing for the
>>> counter?
>>>
>> All the counting is hardware.
>>
>Not so for the 5370A (was this changed for the 5370B?), the 16 bit N0
>counter length is extended in software when and if required.
Yes, but that is a rather low frequency deal, I wouldn't call that
timecritical at all.
--
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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