Re: Power-On Reset
From: Ken Smith (kensmith_at_green.rahul.net)
Date: 02/22/05
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Date: Tue, 22 Feb 2005 15:27:53 +0000 (UTC)
In article <3h3m11p8e8elj9qficg6souakgqj0nqmui@4ax.com>,
Allan Herriman <allan.herriman.hates.spam@ctam.com.au.invalid> wrote:
[...]
>A good reset generator will hold reset active for all values of supply
>voltage below some threshold all the way down to zero volts,
>regardless of dv/dt (except maybe for glitch filtering), and keep
>reset active for a certain period (some tens to hundreds of ms) after
>the voltage goes above the threshold.
Actually, a good one will hold reset until a number of cycles of the
system clock have gone by. Many parts must be clocked to reset correctly.
-- -- kensmith@rahul.net forging knowledge
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