More information for multiple-eventbuilders.

diff --git a/trb3/CtsBuildingBlocks.tex b/trb3/CtsBuildingBlocks.tex
index 1f9e158265f37e49c41d9fea362152b4d1e8cd26..544d29a01e7cb54c32eebc481498cbf898fb2bed 100755 (executable)
--- a/trb3/CtsBuildingBlocks.tex
+++ b/trb3/CtsBuildingBlocks.tex
@@ -122,8 +122,16 @@
    \end{table}   
 
 \subsubsection{Multiple Event Builders}
-   The CTS supports multiple event builders using a simple \emph{round-robing} scheme. If 
-   
+The CTS supports multiple event builders using a simple \emph{round-robing}
+scheme. Each enpoint with a GbE interface to send the data to the
+eventbuilder can store the MAC-Address of 16 different eventbuilders. The CTS
+controls to which of the eventbuilders the data is sent n a round-robin way,
+with the additional feature that n-events are sent to one eventbuilder, before
+switching to the next. 0xa00d (bit 0-15) is the register which holds the
+bit-pattern to which eventbuilders the data is sent. 0xa00d (bit 16-23) holds
+the number of events which are sent to each eventbuilder. This is controlable
+via the CTS control-web-page.
+
 \newpage
    
 \subsection{Trigger Logic}