Teledyne LeCroy QPHY-DDR4 - Manual (Page 36)

Figure 21 - tERR(2per), tERR (3per), tERR (4per), and tERR (5per) Results
In the Measure section:
• tCK rise (P1) is the period measurement at Vref (0 mV) of Z1 (differential clock signal) on only the
rising edges. This value is used for the tERR calculation on the rising edge.
• tCK fall (P2) is the period measurement at Vref (0 mV) of Z1 (differential clock signal) on only the
falling edges. This value is used for the tERR calculation on the rising edge.
• tERR(1 per) r (P3) is the TIE measure at Vref (0 mV) of Z1 (differential clock signal) on only the
rising edges (positive pulses). It is set up to measure edges at intervals of 1. This is reported as
informational only.
• tERR(1 per) fall (P4) is the TIE measure at Vref (0 mV) of Z1 (differential clock signal) on only the
falling edges (negative pulses). It is set up to measure edges at intervals of 1. This is reported as
informational only.
• tERR(2 per) r (P5) is the TIE measure at Vref (0 mV) of Z1 (differential clock signal) on only the
rising edges (positive pulses). It is set up to measure edges at intervals of 2. The minimum value
is measured as tERR(2per)rise, min reported in mUI and the maximum value is measured as
tERR(2per)rise, max reported in mUI.
• tERR(2 per) fall (P6) is the TIE measure at Vref (0 mV) of Z1 (differential clock signal) on only the
falling edges (negative pulses). It is set up to measure edges at intervals of 2. The minimum
value is measured as tERR(2per)fall, min reported in mUI and the maximum value is measured
as tERR(2per)fall, max reported in mUI.
• tERR(3 per) r (P7) is the TIE measure at Vref (0 mV) of Z1 (differential clock signal) on only the
rising edges (positive pulses). It is set up to measure edges at intervals of 3. The minimum value
is measured as tERR(3per)rise, min reported in mUI and the maximum value is measured as
tERR(3per)rise, max reported in mUI.
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