From: hadaq Date: Tue, 2 Oct 2012 08:59:20 +0000 (+0000) Subject: Epoch Counter is updated - cu X-Git-Url: https://jspc29.x-matter.uni-frankfurt.de/git/?a=commitdiff_plain;h=0b7a343aa6c5a72105e832c49dd223b6ecca6b5b;p=daqdocu.git Epoch Counter is updated - cu --- diff --git a/trb3/TdcDataFormat.tex b/trb3/TdcDataFormat.tex index 546efea..c746fc2 100644 --- a/trb3/TdcDataFormat.tex +++ b/trb3/TdcDataFormat.tex @@ -145,18 +145,18 @@ data format of the \textbf{\textit{EPOCH Counter}} word is shown below: \begin{table}[h] \centering - \begin{tabular}{|W{1.275cm}|W{7.225cm}|W{5.1cm}|} + \begin{tabular}{|W{1.275cm}|W{1.275cm}|W{11.05cm}|} \hline - 3 bits & 17 bits & 12 bits\\ - "011" & reserved & EPOCH Counter\\ + 3 bits & 1 bit & 28 bits\\ + "011" & reserved & EPOCH Counter\\ \hline \end{tabular} \caption{The data format of the \textit{EPOCH Counter} word.} \label{tab:tdcReservedWord} \end{table} -The EPOCH counter is first designed with 12 bits increasing the total -measurement range up to \texttildelow41,9~ms. For each channel an individual EPOCH +The EPOCH counter is designed with 28 bits increasing the total +measurement range up to \texttildelow45,8~min. For each channel an individual EPOCH counter is implemented and they are incremented, when the coarse counter wraps around. The value of the EPOCH counter is kept in a register before it is written in the channel memory. It is only written in the memory, if a time