8 mode 8: continuous gated pulse generation, 9 mode 9: edge separation measurement, Mode 8: continuous gated pulse generation – ADLINK USB-1903 User Manual
Page 76: Mode 9: edge separation measurement, Figure 4-24, Mode 7-single-triggered continuous pulse, Figure 4-25, Mode 8-continuous gated pulse, 62 operation, Figure 4-25: mode 8-continuous gated pulse
