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J4 connector

I was unsure what this connector was used for but Tommy Sools noticed the following log message from Release.Log found in the Linksys GPL source package:

        CVS TAG:        R20030613_V1103
V11.03  2003/06/13      (AMD V10.04)
        1) Vincent Chen changes Specs.:
        NTSC/PAL switching is hard-coded. The F/W will not check the
        jumper to do the NTSC/PAL switch. (The jumper is useless.)"

It seems likely the connector was in fact intended to be a jumper to select between NTSC and PAL video output formats.

The connections are as follows:

PinFunction
1GND
2GPIO 10
3High impedance VDD (3.3v through a 4.7k resistor)
Pin 1 is closest to LEDs

The GPIO can be configured as an input or output and, unlike some other GPIO pins, has no alternate functions.

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This file last modified 03/11/2005 10:09pm