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Propeller Characteristics — Parallax Forums

Propeller Characteristics

william chanwilliam chan Posts: 1,326
edited 2008-02-29 14:15 in Propeller 1
1. What is the hysteresis range of the propeller input pin around 0.5 Vcc.
Is the hysteresis range between 0.51 Vcc ( above this voltage the propeller detects high ) and 0.49 Vcc ? (below this voltage the propeller detects low )

2. What is the current consumption of a COG when WAITCNT?

Thanks.

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Comments

  • Peter JakackiPeter Jakacki Posts: 10,193
    edited 2008-02-29 14:15
    So many questions and not so much as a "Hi!" cry.gif

    Hi Bill,

    1. Some people think it's rude to say "read the manual" but it's right there on page 25 of the datasheet under Vih and Vil and other helpful information.
    More correctly however, since these are not schmitt trigger inputs you can't really quantify something you don't have. Guaranteed min and max but no dual thresholds.

    2. Again page 26 of the datasheet provides the answer for 8 cogs running various loops including waitcnt. Looks like around 1.25ma/cog.

    *Peter*
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