From a919359dc9a37e0f2bcb1e11cd21eca3718a063d Mon Sep 17 00:00:00 2001
From: Manuel Penschuck <manuel.penschuck@stud.uni-frankfurt.de>
Date: Tue, 28 Oct 2014 21:10:31 +0100
Subject: [PATCH] Added MBS data format

---
 trb3/CBMMBSRecv.tex | 27 +++++++++++++++++++++++++++
 trb3/main.tex       |  4 ++++
 2 files changed, 31 insertions(+)
 create mode 100644 trb3/CBMMBSRecv.tex

diff --git a/trb3/CBMMBSRecv.tex b/trb3/CBMMBSRecv.tex
new file mode 100644
index 0000000..6461dbb
--- /dev/null
+++ b/trb3/CBMMBSRecv.tex
@@ -0,0 +1,27 @@
+\subsection{Data Format}
+The module has two distinct output formats that can be selected before synthesis and cannot be changed during runtime.
+Both share a common first word, containing the received running number as well as status- and the error-bits.
+If indicated in the header, two additional words storing information to reconstruct the arrival time of this MBS data follow:
+
+In this case, the first additional word (2nd in stream) holds a timestamp with a granularity of 5~ns.
+The timestamp was reset by the arrival of the timing trigger belonging to the LVL1 trigger as indicated by the 3rd word in the data stream.
+Observe that this information is only valid, if a timing trigger was received not more than 20~s before the arrival of the data word.
+
+{\small
+\begin{longtable}{ p{4cm} l c p{8cm} }
+   \toprule
+     \textbf{Word} & \textbf{Addr} & \textbf{Bits} & \textbf{Description} \\
+   \textbf{CommitReg}   & 0 &       & Header \\
+     \quad MBSNumber    &   & 0--23 & MBS-Number received \\
+     \quad DataFormat   &   & 24    & 0: Only this header, 1: Two words follow\\
+     \quad MBSStatus    &   & 29--30& MBS-Status bits received\\
+     \quad MBSError     &   & 31    & MBS-Error bit (high-active)\\ 
+   \rowcolor{light-gray}
+   \textbf{Timestamp}   & 1 & 0--31 & Time (in 5~ns steps) since timing trigger of event indicated in next word\\
+     \textbf{LVL1Info}  & 2 &       & LVL1-Trigger information of timestamp \\
+     \quad TriggerNumber&   & 0--15 & Trigger number sent by CTS\\ 
+     \quad TriggerCode  &   & 16--23& Trigger code sent by CTS\\ 
+   \bottomrule
+   \caption{Read-out format of MBS receiver}\label{tab:CBMMBSRecvRDO}
+\end{longtable}
+}
\ No newline at end of file
diff --git a/trb3/main.tex b/trb3/main.tex
index e1fb8b8..175169f 100644
--- a/trb3/main.tex
+++ b/trb3/main.tex
@@ -239,6 +239,10 @@
   \clearpage
   \section{Billboard}
    \input{Billboard.tex}
+  \clearpage
+  \section{CBM-MBS Receiver}
+   \input{CBMMBSRecv.tex}
+   
   
   \cleardoublepage
   
-- 
2.43.0