\textbf{Data Format} & \textbf{Bits} & \textbf{Description}\\
\hline
0x0 & 31 & Time Data Marker\\
- & 30 & reserved. In v2.4 used as marker for corrected, approximate time values\\
- & 29 & reserved\\
+ & 30 & reserved\\
+ & 29 & reserved. In v2.4 used as marker for corrected, approximate time values\\
& 28-22 & channel number\\
& 21-12 & fine time - sum of the two transition of the WUL\\
& 11 & the type of the measured edge - '1' rising, '0' falling edge\\
channel; epoch counter, coarse counter and fine counter. The epoch counter
word is explained in \ref{sec:tdcEpoch}. The coarse time information has the
granularity of 5~ns (period of the system clock). The range of the coarse time
-is 10,24~us. The fine time has the range of 5~ns but doesn't have a fixed
+is 10.24~us. The fine time has the range of 5~ns but doesn't have a fixed
granularity. The fine time information has to be calibrated using the
statistic collected by the individual channel (for details see
\ref{sec:tdcFineTime}). The response efficiency of the TDC is 100\%. So even
+A set of rate registers is available starting from address 0xc000 up to 0xc040,
+depending on the number of channels included. The lower 31 Bit of these registers
+are used as counters for rising edges on the input. The uppermost bit reflects
+the current status of the input - '1' when high, '0' when low. This bit is useful
+to determine the correct polarity settings of the inputs.
+
+
A set of control registers (0xc800) are assigned in order to access the basic
controls, edit the features and debug information of the TDC. A detailed
explanation of the control registers are given in Table