25 Aug
2014
25 Aug
'14
11:48 a.m.
Not precisely. Strobe specifically means a signal that is active (active level or active
edge, it depends) to indicate the instant at which other signals are meaningful and should
be latched or acted on.
For example, in the Unibus you can refer to the MSYN signal as a strobe: when the selected
Unibus slave, in an output cycle, sees MSYN assert (rising edge), the data lines are valid
and it will latch them or otherwise act on their value.
?Regular? isn?t the key point. The key point is that it?s a pulse or edge that triggers
and action.
paul
On Aug 25, 2014, at 2:36 PM, drlegendre . <drlegendre at gmail.com> wrote:
Huh, ok. So.. strobe is a meta-term for a line that
pulses with some
regularity? Seems like kind of a redundant term, since we have 'pulse' as
well.
On Mon, Aug 25, 2014 at 12:25 PM, Eric Smith <spacewar at gmail.com> wrote:
> On Sun, Aug 24, 2014 at 11:48 PM, Eric Smith <spacewar at gmail.com> wrote
> of asymmetric TTL drive capability:
>> That's also why strobes are almost always negative logic (active low).
>
> On Mon, Aug 25, 2014 at 9:22 AM, drlegendre . <drlegendre at gmail.com>
> wrote:
>> Interesting, but I'm not sure what a strobe (signal) is.
>
> A signal that causes an action by being briefly in an active state, and the
> rest of the time in an inactive state.
>
> For example, the chip select signal to a memory or I/O chip, or the
> read and write strobes.
>