how-to-use-the-epics-device-support-of-fmc-tdc.md

@@ -81,3 +81,7 @@ record(waveform, "ET_WR8:TDC:CH0:WF") {
     field(TSE,  "-2")  
     field(MPST, "Always")  
 }**  
+In the case of the "login" type, the timestamp of the input timing is stored in the TIME field with the accuracy of a nano-second. More precise timing in pico-second is stored in the VAL field.
+
+All timestamp information is stored in the array in the case of the "waveform" type.
+The first element indicates the timing in a second. The precise timing information is stored in the second element with the unit of a nano-second. Then, the further precise timing in the unit of a pico-second is stored in the third element. 
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