Yahoo Groups archive

68300

Index last updated: 2026-04-29 00:01 UTC

Message

Intentional momentary I/O contention

2005-04-05 by Tim

Hello all,
This isn't actually a question about the 683xx, but for the HCS12DP256.
Some I/O pins have the capability of full (10ma) drive and 1/3 drive 
settings.
What is the reliability of the processor if I drive a full drive pin to 
VCC and connect it via a (approx) 50 ohm resistor to an other pin 
driven low with 1/3 drive? This contention would last for ~ 200 
microseconds out of a period of 40 milliseconds. 0.5% duty cycle 
effectively.
Basically like an active pull down.

or please point me in the correct direction.

Tim Flynn

Attachments

Move to quarantaine

This moves the raw source file on disk only. The archive index is not changed automatically, so you still need to run a manual refresh afterward.