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The mainframe communicates with the plug-ins via the Serial Data Interface (SDI). | The mainframe communicates with the plug-ins via the Serial Data Interface (SDI). | ||
SDI was designed by [[Lester Larson]]. | |||
This comprises three signals: | This comprises three signals: | ||
* SDI clock | * SDI clock | ||
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The 11300 has a real-time clock powered by a 3V lithium battery. | The 11300 has a real-time clock powered by a 3V lithium battery. | ||
The real-time clock is a [[Media:Msm6242b.pdf|6242 IC]]. | The real-time clock is a [[Media:Msm6242b.pdf|6242 IC]]. | ||
==Pictures== | ==Pictures== | ||