@@ -27,9 +27,13 @@ Not all parameters are needed; if one of the parameters is not present in the fi
\item[I2C\_CLK\_Addr]\verb|[positive int, 0x68]|\gls{i2c} address of Si5345 clock generator installed on the \gls{tlu}.
\item[I2C\_DAC1\_Addr]\verb|[positive int, 0x13]|\gls{i2c} address of \gls{dac} installed on the \gls{tlu}. The \gls{dac} is used to configure the threshold of the trigger inputs.
\item[I2C\_DAC2\_Addr]\verb|[positive int, 0x1F]|\gls{i2c} address of \gls{dac} installed on the \gls{tlu}. The \gls{dac} is used to configure the threshold of the trigger inputs.
\item[I2C\_ID\_Addr]\verb|[positive int, 0x50]|\gls{i2c} address the unique ID \gls{eeprom} installed on the \gls{tlu}. The chip is used to provide a unique identifier to each kit.
\item[I2C\_EXP1\_Addr]\verb|[positive int, 0x74]|\gls{i2c} address the bus expander used to select the direction of the \gls{hdmi} pins on the board.
\item[I2C\_EXP2\_Addr]\verb|[positive int, 0x75]|\gls{i2c} address the bus expander used to select the direction of the \gls{hdmi} pins on the board.
\item[I2C\_ID\_Addr]\verb|[positive int, 0x50]|\gls{i2c} address of the unique ID \gls{eeprom} installed on the \gls{tlu}. The chip is used to provide a unique identifier to each kit.
\item[I2C\_EXP1\_Addr]\verb|[positive int, 0x74]|\gls{i2c} address of the bus expander used to select the direction of the \gls{hdmi} pins on the board.
\item[I2C\_EXP2\_Addr]\verb|[positive int, 0x75]|\gls{i2c} address of the bus expander used to select the direction of the \gls{hdmi} pins on the board.
\item[I2C\_DACModule\_Addr]\verb|[positive int, 0x1C]|\gls{i2c} address of the \gls{dac} installed on the power module and used to control the \gls{pmt} outputs.
\item[PMT\_vCtrlMax]\verb|[float, 1]| value, in volts, of the maximum control voltage for the \gls{pmt}s. For EUDET telescopes this should normally be left to 1~V. If the \gls{tlu} is going to be used with different \gls{pmt}s, then a new value can be used but the hardware must be tweaked accordingly by changing the voltagi divider on the power module.
\item[I2C\_EXP1Module\_Addr]\verb|[positive int, 0x76]|\gls{i2c} address of the first expander used to control the indicators on the power module.
\item[I2C\_EXP2Module\_Addr]\verb|[positive int, 0x77]|\gls{i2c} address of the second expander used to control the indicators on the power module.
\item[intRefOn]\verb|[boolean, false]| If true, the \gls{dac}s installed on the \gls{tlu} will use their internal voltage reference rather than the one provide externally.
\item[VRefInt]\verb|[float, 2.5]| Value in volts for the internal reference voltage of the \gls{dac}s. The voltage is chosen by the chip manufacturer. This is only used if \verb|intRefOn= true|.
\item[VRefExt]\verb|[float, 1.3]| Value in volts for the external reference voltage of the \gls{dac}s. The voltage is determined by a circuit on the \gls{tlu} and the value of this parameter must reflect such voltage. This is only used if \verb|intRefOn= false|.