Teledyne LeCroy QPHY-DDR3 - Manual (Page 36)

36
917717 Rev C
tERR(n per), Cumulative Error
tERR is defined as the cumulative error across n multiple consecutive cycles from tCK(avg). tERR is not
subject to production test.
There are 12 different tests:
tERR(2per), tERR (3per), tERR (4per), tERR (5per), tERR(6per), tERR (7per), tERR (8per), tERR (9per),
tERR (10per), tERR (11per), tERR (12per), tERR (13-50per),
Eye Diagram
Write Burst (Inputs)
This is an informational only test that creates the eye diagram of all of the write bursts found in the
acquisition. The Eyes are created for both the Data signal and the Strobe signal and shown on the
screen at the same time to allow for debugging of strobe timing.
Read Burst (Outputs)
This is an informational only test that creates the eye diagram of all read bursts found in the acquisition.
The Eyes are created for both the Data signal and the Strobe signal and shown on the screen at the same
time to allowing for strobe timing debugging.
Electrical Tests
Write Bursts (Inputs)
Slew (Input Slewrate)
This test applies to all input signals.
SlewR and SlewF
Apply to all input signals.
The input signal minimum slew rate is to be maintained over the range from VREF to VIH(ac) min for
rising edges (SlewR) and the range from VREF to VIL(ac) max for falling edges (SlewF) of single-ended
signal. This test is informational only.