278 Keysight N5990A MIPI M-PHY Receiver Test User Guide8 Sys Burst TestsTest 2.3.4-SYS-RX Differential Termination Enable Time (TTERM-ON-SYS-RX )It is available for all hardware configurations in Termination mode.PurposeThis test verifies that the SYS-RX enables the termination with in therequired time.ProcedureThe data generator sends Burst-mode SYS CJTPAT signaling with nominalamplitude settings while the DUT is configured for Terminated-mode.Then, the TTERM-ON-SYS-RX (PWM-RX differential termination enable time)is measured using a real-time oscilloscope. Among all measuredTTERM-ON-SYS-RX values, the maximum and minimum TTERM-ON-SYS-RXvalues are considered as the final results.The test will pass if the maximum TTERM-ONSYSM-RX value is less than thePREPARE time defined by the DUT´s LS_PREPARE_Length_Capabilityattribute (see Table 42).This test is performed at each selected lane.Connection DiagramRefer to the connection diagrams shown in the Connection Diagramsection of the Test 2.1.4-HS-RX Differential Termination Enable Time test.ParametersThe parameters used in Expert Mode for this test, are as follows:• CDR Loop Bandwidth (if CDR is selected in the Special Parameterdialog, see “BERT Analyzer Settings”)• CDR Peaking (if CDR is selected in the Special Parameter dialog, see“BERT Analyzer Settings”)• CDR Transition Density (if CDR is selected in the Special Parameterdialog, see “BERT Analyzer Settings”)• CDR Loop Order (if CDR is selected in the Special Parameter dialog,see “BERT Analyzer Settings”)• Semi Automated Test• Set Single Ended Amplitude• Set Offset
