MCF5213 port pull-ups

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MCF5213 port pull-ups

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life_user
Contributor I
 In the users manual for the MCF5213 there is no mention of pull-up resistors for port TC pins (PTC[0] thru PTC[3]). However, if these four are lines are defined as general purpose inputs these pins are acting as if there are approximately 30k pull-up resistors internally.
 Are there internal pull-ups on port TC?
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Nouchi
Senior Contributor II
Hello,

I think there's pull-up on Port TC, because in the MCF5213EC datasheet, Table 3 P18 Pull-up/pull-down column says, "2 All signals have a pull-up in GPIO mode".
In table 26, there's a parameter (Iapu) which specify the Weak Internal Pull Up Device Current, tested at VIL Max.

Emmanuel
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